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| Meta Title | ch. 30.23 General Development Standards - Bulk Regulations | Snohomish County Code |
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| Boilerpipe Text | This chapter is included in your selections.
Sections:
30.23.010
Bulk matrices - Purpose, applicability and general provisions.
30.23.020
Minimum net density for residential development in UGAs.
30.23.030
Rural, Resource, Urban (Non-Residential) and other zone categories - Bulk matrix.
30.23.032
Urban Residential Zone categories - bulk matrix.
30.23.040
Reference notes for SCC Tables 30.23.030 and 30.23.032.
30.23.041
Setbacks from road network elements in Urban Zones.
30.23.043
Setbacks from road network elements in Rural Zones.
30.23.045
Setbacks from road network elements in Resource Zones.
30.23.047
Setbacks from road network elements in other zones.
30.23.049
Reference notes for SCC Tables 30.23.041 through 30.23.047.
30.23.050
Height requirements, exceptions and measuring height.
30.23.055
Repealed.
30.23.060
Binding site plans (BSP).
30.23.100
Setbacks and corner lot sight clearance triangles.
30.23.110
Special setbacks for certain uses.
30.23.115
Setback exceptions for minor architectural features.
30.23.120
Front setback exceptions for new structures from existing road network elements.
30.23.125
Repealed.
30.23.130
Setback for new private road network elements from existing structures.
30.23.150
Setback exception for lots combined as a single building site.
30.23.200
Reductions to lot area.
30.23.210
Lot size averaging – Urban zones.
30.23.215
Lot size averaging – F&R, R-5, and RD zoning.
30.23.220
Minimum lot area for rural clusters in RUTAs.
30.23.230
Lot area when land is taken for public use.
30.23.235
Development on substandard lots - General.
30.23.240
Residential use of substandard lots.
30.23.250
Aggregation of lots.
30.23.260
Parcels split by UGA boundary line.
30.23.270
Attached single family dwellings.
30.23.300
Building separation for single-family detached, single-family attached, and duplex structures constructed in the LDMR and MR zones.
30.23.310
Building separation for buildings taller than 30 feet in the R-7,200 zone.
30.23.400
Repealed.
This section is included in your selections.
SCC Tables
30.23.030
,
30.23.032
,
30.23.041
,
30.23.043
,
30.23.045
, and
30.23.047
constitute the bulk matrices. The bulk matrices contain the
setback
,
lot coverage
,
building height
, and
lot
dimension regulations for all zones in unincorporated Snohomish County.
Additional
setback
,
lot width
and
lot area
requirements and exceptions are found at SCC
30.23.100
through
30.23.260
and chapters
30.34A
,
30.41C
,
30.41G
,
30.42B
and
30.67
SCC.
All
lots
and
structures
shall conform to the requirements listed in the bulk matrices, SCC Tables
30.23.030
,
30.23.032
,
30.23.041
,
30.23.043
,
30.23.045
, and
30.23.047
, unless modified elsewhere in this title.
SCC
30.23.040(41)
establishes minimum
lot area
for the RU zone.
For design reasons, the
director
may reduce the property line
setbacks
established in SCC Tables
30.23.030
and
30.23.032
by up to 25 percent for walls or
structures
that are 20 feet in length or less; provided, that a minimum
setback
of three feet is maintained.
Except as otherwise provided in this title, every required
setback
shall be open and unobstructed from the ground to the sky except for trees and other natural vegetation, eaves, foundations and walls.
A
setback
or the open space required around any
structure
or use shall not be calculated in an adjacent development’s
setback
or open space for a
structure
or use.
SCC
30.23.250
establishes the
setback
requirements for aggregated
lots
.
(Added by Amended Ord. 02-064, Dec. 9, 2002, Eff date Feb. 1, 2003; Amended by Amended Ord. 08-101, Jan. 21, 2009, Eff date Apr. 21, 2009; Amended by Amended Ord. 12-049, Oct. 3, 2012, Eff date Jan. 1, 2013).
This section is included in your selections.
Except as provided in subsection
(2)
of this section, a minimum
net density
of six
dwelling units
per acre shall be required in all
UGAs
for:
New
subdivisions
,
short subdivisions
, PRDs,
townhouse
and
mixed townhouse developments
, and
mobile home parks
; and
New residential development in the LDMR, MR, and
Townhouse
zones.
A minimum
net density
of 15
dwelling units
per acre shall be required for new residential development in the MR, NB, PCB, CB and GC zones in the Southwest
UGA
where any portion of the
site
is within 2,000 feet of the western edge of the
right-of-way
of State Route 99 or within 800 feet of the eastern edge of the
right-of-way
of State Route 99; and the
site
is east of State Route 525. For
sites
that are one acre or less in size, the
director
may administratively approve a reduction in the minimum
net density
, provided that the
applicant
demonstrates one or more of the following:
The
site
is constrained due to its unusual shape, topography,
easements
, or
critical areas
and the minimum
net density
cannot be achieved;
The required
setbacks
do not allow the minimum
net density
to be achieved; or
The project contains both residential and non-residential uses.
Minimum
net density
is the density of development excluding roads,
drainage
detention
/
retention
areas, biofiltration swales, areas required for public use, and
critical areas
and their required buffers pursuant to chapters
30.62A
and
30.62B
SCC.
Minimum
net density
is determined by rounding up to the next whole unit or
lot
when a fraction of a unit or
lot
is 0.5 or greater.
For new
subdivisions
and
short subdivisions
, the minimum
lot
size of the underlying zone may be reduced as necessary to allow a
lot
yield that meets the minimum density requirement. Each
lot
shall be at least 6,000 square feet, except as otherwise allowed by this title.
The minimum
net density
requirement of this section shall not apply:
In the Darrington, Index, and Gold Bar
UGAs
; and
Where sewerage regulations, SCC
30.29.100
, require a lesser density.
(Added by Amended Ord. 02-064, Dec. 9, 2002, Eff date Feb. 1, 2003; Amended by Amended Ord. 06-061, Aug. 1, 2007, Eff date Oct. 1, 2007; Amended by Ord. 17-062, Oct. 18, 2017, Eff date Dec. 17, 2017; Amended by Amended Ord. 18-026, May 23, 2018, Eff date June 11, 2018; Amended by Ord. 22-020, June 1, 2022, Eff date June 12, 2022; Amended by Ord. 25-045, Aug. 13, 2025, Eff date Sept. 6, 2025).
This section is included in your selections.
Lot
Dimension (ft)
54
Setback
Requirements From: (ft)
11
Category
Zone
Max. Bldg. Height (ft)
27
,
64
Min.
Lot Area
22
,
29
Min.
Lot Width
Min.
Corner Lot
Width
Commercial and Industrial Zones
Residential, Multifamily, and Rural Zones
33
Resource Lands
33
Water Bodies
12
Max.
Lot Coverage
8
Ag
20
Forest
21
Resource
F
38
45
6
20 ac
3
300
300
100
13
100
13
50
100
30
25
13
35%
F&R
38
,
39
30
7
200,000 sf
2
,
23
100
100
5
5
50
100
30
25
35%
A-10
37
,
40
45
10 ac
none
none
5
5
50
100
30
25
none
Rural
RRT-10
45
10 ac
225
225
5
5
50
100
30
25
35%
R-5
37
,
38
,
39
,
40
,
46
45
200,000 sf
2
,
24
165
24
165
24
5
5
50
100
30
25
35%
RD
38
45
200,000
165
165
5
5
50
100
30
25
35%
RB
35
none
none
none
none
50
50
100
none
35%
CRC
35
43
none
none
none
none
25
50
100
none
50%
44
30%
45
RFS
35
none
none
none
none
50
50
100
none
35%
RI
50
none
none
none
none
100
100
100
none
35%
Other
SA-1
37
,
39
35
1 ac/43,560 sf
150
150
5
5
50
100
25
35%
RC
37
,
38
,
39
,
40
35
100,000 sf
24
165
24
165
24
5
5
50
100
30
25
35%
RU
37
,
39
35
41
60
65
5
5
50
100
25
35%
R 20,000
37
,
39
25
20,000 sf
85
90
5
5
50
100
25
35%
R12,500
40
30
12,500 sf
75
80
5
5
50
100
25
35%
WFB
30
7,200 sf
23
60
65
5
5
50
100
25
35%
Urban (Non-Residential)
NB
1
40
14
none
none
none
none
10
none
100
none
65%
PCB
1
40
14
none
19
none
none
none
10
none
100
none
none
CB
1
35
14
none
none
none
none
10
none
100
none
50%
GC
1
45
14
none
none
none
none
10
none
100
none
50%
IP
65
none
none
none
none
17
25
17
none
100
none
50%
BP
1
50
none
19
none
none
none
25
none
100
none
35%
LI
50
none
none
none
none
50
none
100
none
none
HI
65
none
none
none
none
50
none
100
none
none
UC
63
90
none
none
none
none
See SCC
30.34A.040(2)
none
100
none
none
MUC
See SCC
30.31G.020
none
none
none
none
10
none
100
none
none
(Amended by Amended Ord. 12-049, Oct. 3, 2012, Eff date Jan. 1, 2013; Amended by Amended Ord. 15-025, May 6, 2015, Eff date May 24, 2015; Amended by Amended Ord. 18-026, May 23, 2018, Eff date June 11, 2018; Amended by Ord. 20-020, June 24, 2020, Eff date July 11, 2020; Amended by Ord. 20-080, Dec. 16, 2020, Eff date Jan. 9, 2021; Amended by Amended Ord. 21-060, Oct. 6, 2021, Eff date Oct. 22, 2021; Amended by Amended Ord. 24-065, Dec. 4, 2024, Eff date Dec. 22, 2024).
This section is included in your selections.
(Added by Amended Ord. 12-049, Oct. 3, 2012, Eff date Jan. 1, 2013; Amended by Amended Ord. 15-025, May 6, 2015, Eff date May 24, 2015; Amended by Amended Ord. 16-029, May 11, 2016, Eff date May 23, 2016; Amended by Ord. 17-062, Oct. 18, 2017, Eff date Dec. 17, 2017; Amended by Amended Ord. 18-026, May 23, 2018, Eff date June 11, 2018; Amended by Amended Ord. 21-004, Mar. 15, 2021, Eff date Mar. 26, 2021; Amended by Amended Ord. 22-016, May 4, 2022, Eff date May 19, 2022; Amended by Amended Ord. 23-033, June 7, 2023, Eff date June 23, 2023; Amended by Ord. 24-060, Aug. 14, 2024, Eff date Aug. 26, 2024; Amended by Amended Ord. 25-033, Aug. 13, 2025, Eff date Sept. 6, 2025).
This section is included in your selections.
MR bulk requirements shall apply for all residential development permitted in the NB, PCB, CB, GC, and BP zones.
When subdivisionally described, the minimum
lot area
shall be 1/128th of a section.
When subdivisionally described, the minimum
lot area
shall be 1/32nd of a section.
In the LDMR zone, the maximum density shall be calculated based on 4,000 square feet of land per
dwelling unit
, except that
existing dwelling units
may be retained as part of
new development
in the LDMR zone without counting towards the maximum density.
In the MR zone the maximum density shall be calculated based on 2,000 square feet of land per
dwelling unit
, except that:
Existing dwelling units
may be retained as part of
new development
in the MR zone without counting towards the maximum density.
For
sites
zoned MR, NB, PCB, CB, or GC in the Southwest
UGA
where any portion of the
site
is within 2,000 feet of the edge of the
right-of-way
of State Route 99 there is no maximum density, provided that either:
One or more
transfer of development rights
(
TDR
) credits must be used to realize the additional density under subsection
(5)(b)
of this section according to the requirements of chapter
30.35A
SCC; or
Developments for which the
applicant
provides documentation to the
director
showing that the entire project has been granted a property tax exemption by the Washington State
Department
of Revenue under RCW
84.36.041
,
84.36.042
,
84.36.043
, or
84.36.560
shall be exempt from the requirements of chapter
30.35A
SCC.
Commercial
forestry
structures
shall not exceed 65 feet in height.
Non-residential
structures
shall not exceed 45 feet in height.
Lot coverage
includes all
buildings
on the given
lot
.
Sites
zoned MR, NB, PCB, CB, or GC in the Southwest
UGA
where any portion of the
site
is within 2,000 feet of the edge of the
right-of-way
of State Route 99 are exempt from minimum
lot area
, minimum
lot width
, and maximum
lot coverage
requirements.
RESERVED for future use.
These
setbacks
shall be measured from the property line.
Greater
setbacks
than those listed may apply to areas subject to
Shoreline Management Program
jurisdiction or
critical areas
regulations in chapters
30.62A
,
30.62B
,
30.62C
, and
30.67
SCC. Some uses have special
setbacks
identified in SCC
30.23.110
.
The listed
setbacks
apply where the adjacent property is zoned F. In all other cases,
setbacks
are the same as in the R-8,400 zone. In the F zone, the
setbacks
for residential
structures
on 10 acres or less which were legally created prior to being zoned to F shall be the same as in the R-8,400 zone.
The maximum
building height
is 75 feet for multifamily
structures
on
sites
zoned MR, NB, PCB, CB, and GC that are in the Southwest
UGA
where any portion of the
site
is within 2,000 feet of the edge of the
right-of-way
of State Route 99. Subject to the requirements in SCC
30.22.100
, non-residential uses are allowed on the first floor of multifamily
structures
on
sites
zoned NB, PCB, CB, and GC that are in the Southwest
UGA
where any portion of the
site
is within 2,000 feet of the edge of the
right-of-way
of State Route 99.
See SCC
30.23.300
.
The maximum
building height
is increased an additional five feet when the
building
includes a
daylight basement
, except under conditions that would violate any other applicable requirements of Title
30
SCC, including the height limit requirements of the
Shoreline Management Program
(SCC
30.67.460
),
airport
compatibility regulations (SCC
30.32E.060
), and urban residential design standards (chapter
30.23A
SCC).
In the IP zone there shall be an additional one foot
setback
for every one foot of
building height
over 45 feet.
RESERVED for future use.
See SCC
30.31A.020(1)
and
(2)
which specify the minimum area of a tract of land necessary for PCB or BP zoning.
See additional
setback
provisions for
dwellings
located along the boundaries of designated
farmland
contained in SCC
30.32B.130
.
See additional
setback
provisions for
structures
located adjacent to
forest lands
, and/or on lands designated local forest or
commercial forest
contained in SCC
30.32A.110
.
The minimum
lot
size for properties designated Rural Residential (RR)--10 (Resource Transition) on the
comprehensive plan
shall be 10 acres.
Minimum
lot area
requirements may be modified within
UGAs
in accordance with SCC
30.23.020
.
In
rural cluster subdivisions
approved in accordance with the provisions of chapter
30.41C
SCC, the minimum
lot area
shall be as provided in SCC
30.23.220
. The maximum
lot area
shall be 20,000 square feet or less when located in
rural/urban transition areas
.
RESERVED for future use.
RESERVED for future use.
See SCC
30.23.050
for height limit exceptions. See also SCC
30.67.460
for height limit requirements within
shoreline jurisdiction
.
RESERVED for future use.
See SCC
30.23.200
et seq. for additional
lot area
requirements and exceptions.
SCC
30.32A.120
(Siting of new
structures
:
Commercial forest
land) requires an application for a new
structure
on parcels designated
commercial forest
, but not within a designated
commercial forest
--
forest transition area
, to provide a minimum 500-foot
setback
, which shall be a resource protection area, from the property boundaries of adjacent
commercial forest
lands except that if the size, shape, and/or physical
site
constraints of an existing legal
lot
do not allow a
setback
of 500 feet, the new
structure
shall maintain the maximum
setback
possible, as determined by the
department
.
Setback
requirements for mineral
excavation
and processing are in SCC
30.23.110(27)
. Performance standards and
permit
requirements are in chapter
30.32C
SCC.
For mineral
excavation
and processing: The
site
shall be a contiguous geographic area and have a size of not less than 10 acres, except in the case of subsurface shaft
excavations
, no minimum acreage is required, pursuant to SCC
30.32C.020(1)
.
See SCC Table
30.28.050(4)(i)
for
setback
requirements for
structures
containing a
home occupation
.
RESERVED for future use.
See chapter
30.31E
SCC, for more complete information on the
Townhouse
Zone height,
setback
, and
lot coverage
requirements.
RESERVED for future use.
All
structures
used for housing or feeding animals, not including household pets, shall be located at least 30 feet from all property lines.
There shall be no
subdivision
of land designated
commercial forest
in the
comprehensive plan
except to allow installation of communication and
utility
facilities if all the following requirements are met:
The facility cannot suitably be located on undesignated land;
The installation cannot be accomplished without
subdivision
;
The facility is to be located on the lowest feasible
grade
of
forest land
; and
The facility removes as little land as possible from
timber
production.
On parcels designated
commercial forest
, but not within a designated
commercial forest
--
forest transition area
, establish and maintain a minimum 500-foot
setback
, which shall be a resource protection area, from the property boundaries of adjacent
commercial forest
lands except when the size, shape, and/or physical
site
constraints of an existing legal
lot
do not allow a
setback
of 500 feet, the new
structure
shall maintain the maximum
setback
possible as provided in SCC
30.32A.120
.
Land designated local commercial
farmland
shall not be divided into
lots
of less than 10 acres unless a properly executed deed restriction which runs with the land and which provides that the land divided is to be used exclusively for agricultural purposes and specifically not for a
dwelling
(s) is recorded with the Snohomish County auditor.
Minimum
lot area
in the rural use zone shall be the minimum allowed by the zone identified as the implementing zone by the
comprehensive plan
for the plan designation applied to the
subject property
. Where more than one implementing zone is identified for the same designation, the minimum
lot
size shall be that of the zone allowing the smallest
lot
size.
RESERVED for future use.
Additional bulk requirements may apply. Refer to SCC
30.31F.100
and
30.31F.140
.
The 50 percent maximum
lot coverage
limitation applies solely to the portion of the area within the CRC
comprehensive plan
designation and zone that is centered at 180th
Street
SE and SR 9, generally extending between the intersection of 172nd
Street
/SR 9 to just south of 184th
Street
/SR 9, as indicated on the county’s FLUM and
zoning map
.
The 30 percent maximum
lot coverage
limitation applies solely to the portion area located within the CRC
comprehensive plan
designation and zone that is centered at State Route (SR) 9 and 164th
Street
SE, as indicated on the county’s Future Land Use Map (FLUM) and
zoning map
.
Additional
setbacks
may apply to development within a
rural cluster subdivision
. Refer to chapter
30.41C
SCC. Residential
subdivision
is restricted pursuant to SCC
30.32C.050
. Uses are restricted where the R-5 zone coincides with the Mineral Resource Overlay (MRO) to prevent development which would preclude future access to the mineral resources.
RESERVED for future use.
RESERVED for future use.
RESERVED for future use.
RESERVED for future use.
RESERVED for future use.
RESERVED for future use.
RESERVED for future use.
A
split parcel
may be subdivided along the
UGA boundary
line using one of three methods. First, a
split parcel
may be subdivided along the
UGA boundary
line into two
lots
, whereby one
lot
remains within the
UGA
and the other
lot
remains outside the
UGA
, pursuant to SCC
30.41B.010(5)
. Second, a
split parcel
may be subdivided as part of a
short plat
application, pursuant to SCC
30.41B.010(8)
. Finally, a
split parcel
may be subdivided as part of a plat application, pursuant to SCC
30.41A.010(3)
.
See SCC
30.42E.100(9)(c)
.
RESERVED for future use.
RESERVED for future use.
RESERVED for future use.
Relationship of
setback
to
building height
:
The minimum
setback
requirements are dependent on the heights of the
building
as specified in this column. To meet the
setback
requirements,
buildings
over 20 feet in height must either:
Set the entire
building
back the minimum
setback
distance; or
Setback
those portions of the
building
exceeding 20 feet in height to the minimum
setback
distance, as illustrated in Figure
30.23.040(59)
.
"A" represents the minimum
setback
distance for the portion of a
building
less than or equal to 20 feet in height.
"B" Represents the minimum
setback
distance for the portion of a
building
greater than 20 feet in height.
Note: An
applicant
may choose one or more
setbacks
for
buildings
greater than 20 feet in height if multiple
setback
requirements apply to the
building height
. For example, a
building
that is 45 feet in height may have a 20-foot
setback
for the portion of the
building
between 20 and 30 feet in height, and 25-foot
setback
for the portion of the
building
greater than 30 feet in height.
Setback
those portions of the
building
exceeding 45 feet in height from the minimum side and rear yard
setbacks
by one additional foot for each additional two feet of
building height
.
Single-
family
detached, single-
family
attached, and
duplex
structures
shall comply with the minimum
setbacks
required in the R-8,400 zone.
Fencing between single-
family
detached, single-
family
attached, and
duplex
structures
shall be:
Prohibited in the area that is within five feet of a third
story
ingress/egress window so ladder access to the third floor window is not impeded; or
Limited to either vegetative, wood, block, concrete or metal that does not exceed 42 inches in height.
Additional
building height
up to a maximum of 125 feet may be allowed under certain circumstances as provided for in SCC
30.34A.040(1)
.
If located within an
airport compatibility area
,
building height
is subject to the requirements of SCC
30.32E.060
.
Townhouse
and
mixed townhouse development
may achieve the following density:
For the R-7,200 zone, the maximum density shall be calculated based on 7,200 square feet of land per
dwelling unit
, but the maximum density may be increased up to 50 percent.
Existing dwelling units
may be retained as part of
new development
without counting towards the maximum density.
For the LDMR and MR zones, the maximum density established under subsections
(4)
and
(5)
of this section may be increased up to 50 percent.
Maximum density shall be determined by rounding up to the next whole unit when a fraction of a unit is equal to five-tenths or greater.
The maximum
lot coverage
in
townhouse
and
mixed townhouse developments
is 50 percent in the LDMR zone and 50 percent in the MR zone except
sites
zoned MR where any portion of the
site
is within 2,000 feet of the western edge of the
right-of-way
of State Route 99 or within 800 feet of the eastern edge of the
right-of-way
of State Route 99, and the
site
is east of State Route 525 are exempt from maximum
lot coverage
requirements consistent with SCC
30.23.040(9)
.
See SCC
30.23.310
.
Co-living dwelling
density is calculated at the rate of one-quarter of a
dwelling unit
per sleeping unit.
(Added by Amended Ord. 02-064, Dec. 9, 2002, Eff date Feb. 1, 2003; Amended by Ord. 05-094, Sept. 14, 2005, Eff date Sept. 29, 2005; Amended by Amended Ord. 05-083, Dec. 21, 2005, Eff date Feb. 1, 2006; Amended by Amended Ord. 05-087, Dec. 21, 2005, Eff date Feb. 1, 2006; Amended by Amended Ord. 06-004, Mar. 15, 2006, Eff date Apr. 4, 2006; Amended by Ord. 06-062, Oct. 4, 2006, Eff date Oct. 15, 2006; Amended by Ord. 06-075, Oct. 4, 2006, Eff date Oct. 15, 2006; Amended by Amended Ord. 07-022, Apr. 23, 2007, Eff date June 4, 2007; Amended by Amended Ord. 07-029, Apr. 25, 2007, Eff date May 10, 2007; Amended by Amended Ord. 06-061, Aug. 1, 2007, Eff date Oct. 1, 2007; Amended by Amended Ord. 07-084, Sept. 5, 2007, Eff date Sept. 21, 2007; Amended by Amended Ord. 08-101, Jan. 21, 2009, Eff date Apr. 21, 2009; Amended by Amended Ord. 08-087, Feb. 4, 2009, Eff date Apr. 5, 2009; Amended by Amended Ord. 09-079, May 12, 2010, Eff date May 29, 2010; Amended by Amended Ord. 10-072, Sept. 8, 2010, Eff date Oct. 3, 2010; Amended by Amended Ord. 12-018, May 2, 2012, Eff date May 21, 2012; Amended by Amended Ord. 12-025, June 6, 2012, Eff date July 27, 2012; Amended by Amended Ord. 12-049, Oct. 3, 2012, Eff date Jan. 1, 2013; Amended by Amended Ord. 15-025, May 6, 2015, Eff date May 24, 2015; Amended by Ord. 15-103, Jan. 11, 2016, Eff date Jan. 22, 2016; Amended by Amended Ord. 16-029, May 11, 2016, Eff date May 23, 2016; Amended by Amended Ord. 17-004, May 10, 2017, Eff date June 1, 2017; Amended by Ord. 17-062, Oct. 18, 2017, Eff date Dec. 17, 2017; Amended by Amended Ord. 18-026, May 23, 2018, Eff date June 11, 2018; Amended by Ord. 20-020, June 24, 2020, Eff date July 11, 2020; Amended by Ord. 20-080, Dec. 16, 2020, Eff date Jan. 9, 2021; Amended by Amended Ord. 21-004, Mar. 15, 2021, Eff date Mar. 26, 2021; Amended by Amended Ord. 21-060, Oct. 6, 2021, Eff date Oct. 22, 2021; Amended by Amended Ord. 22-016, May 4, 2022, Eff date May 19, 2022; Amended by Amended Ord. 23-033, June 7, 2023, Eff date June 23, 2023; Amended by Amended Ord. 24-028, Dec. 4, 2024, Eff date Dec. 22, 2024; Amended by Amended Ord. 25-033, Aug. 13, 2025, Eff date Sept. 6, 2025; Amended by Ord. 25-057, Dec. 3, 2025, Eff date Dec. 13, 2025).
This section is included in your selections.
Note:
All minimum
setbacks
are measured in feet.
(Added by Amended Ord. 12-049, Oct. 3, 2012, Eff date Jan. 1, 2013; Amended by Ord. 17-062, Oct. 18, 2017, Eff date Dec. 17, 2017; Amended by Amended Ord. 17-061, Mar. 28, 2018, Eff date May 27, 2018; Amended by Amended Ord. 18-026, May 23, 2018, Eff date June 11, 2018; Amended by Ord. 20-080, Dec. 16, 2020, Eff date Jan. 9, 2021; Amended by Amended Ord. 24-065, Dec. 4, 2024, Eff date Dec. 22, 2024).
This section is included in your selections.
(Added by Amended Ord. 12-049, Oct. 3, 2012, Eff date Jan. 1, 2013).
This section is included in your selections.
(All minimum setbacks are measured in feet)
(Added by Amended Ord. 12-049, Oct. 3, 2012, Eff date Jan. 1, 2013; Amended by Amended Ord. 21-060, Oct. 6, 2021, Eff date Oct. 22, 2021).
This section is included in your selections.
(All minimum setbacks are measured in feet)
(Added by Amended Ord. 12-049, Oct. 3, 2012, Eff date Jan. 1, 2013).
This section is included in your selections.
The
setback
shall be measured from the edge of the tract or
easement
. Where no tract or
easement
is established, the measurement shall be made from the edge of the
road network element
.
The
setback
may be reduced to the
setback
required for a
structure
if a vehicle entering the
covered parking structure
can turn around inside the
covered parking structure
and exit without having to back out.
These
setbacks
shall be measured from the edge of the
right-of-way
.
Applies to public
rights-of-way
under 60 feet that are not included in development subject to the recorded
subdivision
,
short subdivision
, or
binding site plan
. These
setbacks
shall be measured from the centerline of the
right-of-way
.
The
county engineer
may require the
front lot line
setback
from a public
right-of-way
be measured from a
right-of-way
reservation line established in accordance with SCC
30.24.140(1)
, when:
The
right-of-way
width is less than 60 feet in width and determined inadequate by the
county engineer
based on:
The
comprehensive plan
arterial
circulation map; or
An adopted design report, roadway design or
right-of-way
plan; and
The
right-of-way
is not located in a recorded
subdivision
,
short subdivision
or
binding site plan
.
Single-
family
detached, single-
family
attached, and
duplex
structures
constructed in the LDMR and MR zones shall use the minimum
setbacks
required in the R-8,400 zone.
Structures
over two
stories
, other than single-
family
detached
structures
, shall increase the
setbacks
by three feet; provided, that the additional
setback
shall only be required as an upper floor
setback
for portions of residential
structures
above 20 feet in height in the same manner as SCC
30.23.040(59)
.
In the IP zone there shall be an additional one foot
setback
for every one foot of
building height
over 45 feet.
In the F zone, the
setbacks
for residential
structures
on
lots
10 acres or less, where the
lot
was legally created prior to being zoned to F, shall be the same as in the R-5 zone.
See SCC
30.23.120
for front
setback
exceptions from
road network elements
.
See SCC
30.41C.130
and
30.41C.140
for additional front
setback
requirements for
lots
created through the
rural cluster subdivision
provisions of chapter
30.41C
SCC.
See SCC
30.23.040(59)
.
In a
townhouse
or
mixed townhouse development
,
setbacks
for residential
structures
may be reduced to a minimum of five feet from a public or
private road
.
In a
townhouse
or
mixed townhouse development
,
setbacks
for entrances to
covered parking structures
may be reduced under subsections
(14)(a)
and
(b)
of this section, except that such entrances to
covered parking structures
shall be restricted under subsection
(14)(c)
of this section:
A minimum of five feet from a public or
private road
.
A minimum of zero feet from a
drive aisle
,
shared court
,
shared driveway
, or
alley
.
The vehicular entrance to a
covered parking structure
shall not be located between nine and 19 feet from an abutting
road network element
. An entrance to a
covered parking structure
that is located at least 19 feet from the abutting
road network element
may have upper-
story
floors project up to four feet horizontally into the area where an entrance to a
covered parking structure
is prohibited, and except as otherwise allowed under SCC
30.23.115
for minor architectural features.
The
setback
from a
drive aisle
that provides access to the rear of a
lot
,
structure
, or use, and is less than 20 feet in width, shall be a minimum of four feet.
(Added by Amended Ord. 12-049, Oct. 3, 2012, Eff date Jan. 1, 2013; Amended by Ord. 17-062, Oct. 18, 2017, Eff date Dec. 17, 2017; Amended by Amended Ord. 17-061, Mar. 28, 2018, Eff date May 27, 2018; Amended by Ord. 25-057, Dec. 3, 2025, Eff date Dec. 13, 2025).
This section is included in your selections.
The maximum height of
buildings
and
structures
shall be pursuant to the height standards in SCC Tables
30.23.030
and
30.23.032
, except as provided in subsection
(2)
of this section.
The following shall be exempt from the maximum height standards, except
structures
and uses located in an
airport compatibility area
are subject to the height review requirements of SCC
30.32E.060
:
Tanks and bunkers, turrets,
church
spires, belfries, domes, monuments, chimneys, water
towers
, fire and hose
towers
, observation
towers
, stadiums, smokestacks, flag poles,
towers
and masts used to support commercial radio and television antennas, bulkheads, water tanks, scenery lofts, cooling
towers
, grain elevators, gravel and cement tanks and bunkers, and drive-in theater projection
screens
, provided they are set back at least 50 feet from any adjoining
lot
line;
Towers
and masts used to support
private antennas
, provided they meet the minimum
setback
of the zoning district in which they are located, and the horizontal array of the antennas does not intersect the vertical plane of the property line;
Towers
, masts or poles supporting electric
utility
, telephone or other communication lines;
Schools and educational institutions; provided, that:
The use was approved as part of a
conditional use
permit
;
A maximum
building height
of 55 feet is not exceeded; and
Any portion of any
building
exceeding the underlying zoning maximum height standard is set back at least 50 feet from all of the
site
’s perimeter
lot
lines;
Aircraft hangars located within any industrial zone; provided, that the hangar is set back at least 100 feet from any non-industrial zone;
Elevator hoistways, provided they do not exceed the maximum
building height
of the underlying zone by more than 30 percent or 15 feet, whichever is less; and
Rooftop mechanical equipment screening, including extended parapet walls, mansards, or other roof forms that are integrated with the architecture of the
building
, provided it does not exceed the maximum
building height
of the underlying zone by more than 30 percent or 15 feet, whichever is less.
Building height
shall be measured as the vertical distance from the average final
grade
to the highest point of the roof surface, based on the following roof types:
For a flat or minimally pitched (less than 1:12) roof use the distance to the tallest point of the roof;
For a mansard roof, use the distance to the deck line; or
For a gable, hip or pitched, gambrel, vaulted, shed, or A-frame roof, use the distance to the midpoint of the pitch of the roof, measured from the peak of the roof to that point vertically above the highest exterior wall, including dormer walls.
Different roof types and their midpoints are shown in Figure
30.23.050(4)
and
(5)
. If a
building
has more than one roof type, the highest roof shall be used to determine the height of the
building
.
Calculation of the average final
grade
shall be made by drawing the smallest rectangle possible that encompasses the entire
building area
as shown in SCC Figure
30.23.050(1)
and averaging the elevations at the midpoint of each side of the rectangle. When a
structure
that is to be fully partitioned with internal dividing walls separating individual
dwelling units
from each other from ground to sky, the
applicant
may request a modification of the measurement by evaluating maximum height based upon individual sections to respond to topography of the
site
as follows:
Drawing the smallest rectangle possible that encompasses the entire
building area
;
Dividing one side of the rectangle, as chosen by the
applicant
, into sections equal to the internal dividing walls that fully separate individual
dwelling units
from each other using lines that are perpendicular to the chosen side of the rectangle;
The sections delineated in subsection
(4)(b)
of this section must extend vertically from ground to sky; and
The maximum height for each section of the
structure
is measured from the average final
grade
for that section of the
structure
, which is calculated as the average elevation at the midpoints of each side of the rectangle for each section of the
structure
, as illustrated in SCC Figure
30.23.050(2)
.
Fill
shall not be used to raise the average final
grade
more than five feet above the
existing grade
of any
dwelling
located within 50 feet on adjoining properties, as illustrated in SCC Figure
30.23.050(3)
; provided, that the provisions of this subsection (5) shall not apply to residential development subject to chapters
30.23A
and
30.41G
SCC.
The measurement of height under this section does not apply to
buildings
regulated by the Snohomish County
Shoreline Management Program
, nor does it replace the definitions of height in the
construction codes
, which are specific to the provisions in those chapters.
Rooftop heating, ventilation and air conditioning (HVAC) and similar systems, when located on commercial, industrial or multifamily
structures
. The system shall not exceed the maximum
building height
of the underlying zone by more than 30 percent or 15 feet, whichever is less. Sight-obscuring screening shall be required unless otherwise approved by the
director
of the
department
.
(Added by Amended Ord. 02-064, Dec. 9, 2002, Eff date Feb. 1, 2003; Reenacted by Amended Ord. 08-101, Jan. 21, 2009, Eff date Apr. 21, 2009; Amended by Ord. 10-024, June 9, 2010, Eff date Sept. 30, 2010; Amended by Amended Ord. 10-072, Sept. 8, 2010, Eff date Oct. 3, 2010; Amended by Amended Ord. 12-025, June 6, 2012, Eff date July 27, 2012; Amended by Amended Ord. 12-049, Oct. 3, 2012, Eff date Jan. 1, 2013; Amended by Amended Ord. 15-025, May 6, 2015, Eff date May 24, 2015; Amended by Ord. 15-103, Jan. 11, 2016, Eff date Jan. 22, 2016; Amended by Ord. 17-062, Oct. 18, 2017, Eff date Dec. 17, 2017; Amended by Ord. 21-011, Apr. 7, 2021, Eff date Apr. 22, 2021; Amended by Amended Ord. 23-033, June 7, 2023, Eff date June 23, 2023).
This section is included in your selections.
(Added by Amended Ord. 23-033, June 7, 2023, Eff date June 23, 2023; Repealed by Amended Ord. 23-033, June 7, 2023, Eff date Dec. 7, 2023).
This section is included in your selections.
Land divided pursuant to a recorded
binding site plan
shall be governed by the bulk regulations of the underlying zone. The entire land area subject to the BSP shall be treated as a single
lot
when applying minimum
lot area
, minimum
lot width
,
setbacks
, maximum
lot coverage
,
off-street parking
,
sign
, and landscaping requirements.
(Added by Amended Ord. 02-064, Dec. 9, 2002, Eff date Feb. 1, 2003).
This section is included in your selections.
For safety purposes, all owners of
corner lots
shall maintain a sight clearance triangle in accordance with SCC Figure
30.23.100(1)
. The sight clearance triangle is formed by measuring 15 feet along the two
front lot lines
from their point of intersection (point A) and connecting the two endpoints (line B - C). Within the area comprising the triangle, no tree,
fence
, shrub,
sign
, or other physical obstruction higher than 42 inches above the established
road network element
grade
shall be permitted.
(Added by Amended Ord. 02-064, Dec. 9, 2002, Eff date Feb. 1, 2003; Amended by Amended Ord. 08-101, Jan. 21, 2009, Eff date Apr. 21, 2009; Amended by Amended Ord. 12-049, Oct. 3, 2012, Eff date Jan. 1, 2013).
This section is included in your selections.
This section supplements the normal
setbacks
required by the underlying zone for the specified use.
All
structures
used for housing or feeding animals, not including household pets, shall be located at least 30 feet from all property lines.
Theaters must be at least 300 feet from the property line of any
preschool
or K-12
school. Other
amusement facilities
must be at least 500 feet from the property line of any park, playground,
preschool
, or K-12 school. Distances shall be measured horizontally by following a straight line from the nearest point in the
building
in which the
amusement facility
will be located, to the nearest property line of a parcel which contains a park, playground,
preschool
, or K-12 school.
All
buildings
must be at least 20 feet from any other
lot
in a residential zone.
All
buildings
must be at least 50 feet from external boundaries of the property.
All
buildings
must be at least 25 feet from any other
lot
in a residential zone.
Covered
structures
must be at least three feet from any
side lot line
or extension thereof. No
setback
from adjacent properties is required for any uncovered
structure
, and no
setback
from the water is required for any
structure
permitted hereunder, except that
setbacks
for
docks
and
boathouses
located in
shoreline jurisdiction
are regulated under SCC
30.67.517
.
All
buildings
shall be set back at least 35 feet from all external property lines; and
All
buildings
shall be set back from all
road network elements
, except a
driveway
. The
setback
shall be the greater of either 75 feet from the centerline of a
road network element
, or 45 feet from the edge of a
road network element
.
Open or covered arenas must be at least 50 feet from any external property line. New
structures
located on or adjacent to lands subject to chapter
30.32A
SCC shall comply with all applicable
setbacks
.
All
structures
must be at least 20 feet from any other
lot
in a residential zone.
All
buildings
must be at least 30 feet from all external property boundaries.
All
animal runs
, and all
buildings
and
structures
devoted primarily to housing animals, must be at least 30 feet from all external property lines.
All
buildings
must be at least 20 feet from any other
lot
in a residential zone.
All
buildings
must be at least 20 feet from any other
lot
in a residential zone.
All
buildings
must be at least 20 feet from any other
lot
in a residential zone.
The track must be at least 50 feet from all external property lines.
All
buildings
and
structures
, storage areas, or other activities (except sales stands) occurring outside of a residential
structure
must be at least 20 feet from any property line.
All
buildings
shall be set back at least 35 feet from all external property lines; and
All
buildings
shall be set back from all
road network elements
, except a
driveway
. The
setback
shall be the greater of either 75 feet from the centerline of a
road network element
, or 45 feet from the edge of the
road network element
.
The following
setbacks
shall be applied from all
road network elements
, except for a
driveway
:
The
setback
for a pump island, where the width of the
road network element
is less than 60 feet, shall be 45 feet from the centerline of the
road network element
.
The
setback
for a pump island, where the
road network element
is 60 feet or wider, shall be one-half the width of the
road network element
plus 15 feet.
The
setback
for a canopy, where the
road network element
is less than 60 feet, shall be 35 feet from the centerline of the
road network element
.
The
setback
for a canopy, where the
road network element
is 60 feet or wider, shall be one-half the width of the
road network element
plus five feet.
All
structures
used for housing or feeding animals must be at least 30 feet from all property lines.
Detached accessory or
non-accessory storage structures
and private garages with
building
footprints over 2,400 square feet must be at least 15 feet from any external property line; provided, that parcels abutting open space tracts shall have a five-foot
setback
from the open space. Storage
structures
and private garages over 4,000 square feet in size must be set back at least 20 feet from any external property line; provided, that parcels abutting open space tracts shall have a five-foot
setback
from the open space.
RESERVED for future use.
All
buildings
must be at least 20 feet from any other
lot
in a residential, multiple-
family
, or rural zone. The
hearing examiner
may require an additional
setback
distance when necessary to maintain compatibility of the proposed
building
with residential uses on adjoining properties.
The pool must be at least five feet from any property line.
The use must be at least 500 feet from the external property lines of all public school grounds and
public parks
or playgrounds.
All
structures
must be at least 20 feet from any other
lot
in a residential zone.
The
setbacks
of a
tower
used for a
personal wireless service facility
shall be measured from the base of the
structure
to the property line of the parcel on which it is located. Where guy wire supports are used,
setbacks
shall be measured from the base of the guy wire anchored to the ground, rather than the base of the
structure
, except as provided for in SCC
30.23.110(26)(b)
.
In zones categorized as Rural or Resource under SCC
30.21.020
, any
public road
right-of-way
may be included in the
setback
calculation. In all other zones categorized under SCC
30.21.020
,
public road
right-of-way
shall not be included in the
setback
calculation.
A
tower
shall be set back from a property line with a minimum of 50 feet, except as provided for in subsections
(26)(d)
through
(26)(f)
of this section. For the purposes of this subsection, a
personal wireless service facility
’s lease area boundaries shall not be considered property lines.
Setbacks
may be modified by the
approving authority
to no less than 20 feet from a property line only if there is significant existing vegetation, topography, or some other land feature that will provide a higher level of screening of the facility. In accordance with SCC
30.25.025(2)
, a
Native Vegetation Retention Area
(
NVRA
) shall be established and maintained when this provision is used.
Personal wireless service facilities
located on
utility
structures
, streetlight poles, traffic signal poles, or existing
structures
shall not be subject to the
personal wireless service facility
special
setback
requirements of subsections
(26)(a)
through
(26)(c)
of this section.
Towers
and
auxiliary support equipment
located on parcels adjacent to
forest lands
or lands designated local forest shall be set back in accordance with SCC
30.32A.110
.
To minimize the potential for birds to collide into antennas and
towers
,
personal wireless service facilities
shall not be located within the recommended construction buffer zone for birds listed as priority species by the Washington
Department
of Fish and Wildlife as described in its Management Recommendations for Washington’s Priority Species Volume IV: Birds (revised March 2012), or listed as endangered or
threatened species
under the federal
Endangered Species
Act (
50
CFR Part
17
), and as amended, unless the
applicant
demonstrates that the proposed location will not have a significant impact on such birds.
In no case shall a
tower
be constructed so that its base is closer to an existing
dwelling
than a distance equal to the height of the
tower
, unless the owner of such
dwelling
consents in writing that a closer distance is permitted.
Minimum
setbacks
, as measured from the nearest edge of active mining or processing, shall be established as follows:
Distance from property line: 50 feet;
Distance from any
public road
or
right-of-way
: 50 feet;
Distance from residences: 100 feet; provided, that the residence is located on a
site
(s) designated and zoned for residential use;
Distance from parks, schools,
hospitals
and/or
libraries
in existence at the time of
permit
application: one-fourth mile (1,320 feet);
Distance from
UGA boundary
: one-fourth mile (1,320 feet).
No mining, processing or permanent
buildings
shall be located within the
setback
.
Structures
or
buildings
associated with
mineral operations
shall be located at least 100 feet from a developed residential property line.
The minimum
setback
for outdoor
marijuana production
or
marijuana processing
facilities shall be at least 50 feet from any property line. The minimum
setback
for indoor
marijuana production
or
marijuana processing
facilities shall be at least 30 feet from any property line.
(Added by Amended Ord. 02-064, Dec. 9, 2002, Eff date Feb. 1, 2003; Amended by Amended Ord. 04-010, Mar. 3, 2004, Eff date Mar. 15, 2004; Amended by Amended Ord. 05-038, Nov. 30, 2005, Eff date Dec. 16, 2005; Amended by Amended Ord. 05-083, Dec. 21, 2005, Eff date Feb. 1, 2006; Amended by Amended Ord. 05-089, Dec. 21, 2005, Eff date Feb. 1, 2006; Amended by Amended Emerg. Ord. 06-011, Feb. 15, 2006, Eff date Feb. 15, 2006; Amended by Amended Ord. 06-057, Aug. 2, 2006, Eff date Aug. 14, 2006; Amended by Amended Ord. 10-026, June 9, 2010, Eff date Sept. 30, 2010; Amended by Amended Ord. 12-025, June 6, 2012, Eff date July 27, 2012; Amended by Amended Ord. 12-049, Oct. 3, 2012, Eff date Jan. 1, 2013; Amended by Amended Ord. 13-086, Nov. 13, 2013, Eff date Nov. 28, 2013; Amended by Ord. 14-053, Aug. 27, 2014, Eff date Sept. 13, 2014; Amended by Ord. 15-005, Mar. 18, 2015, Eff date Apr. 2, 2015; Amended by Ord. 15-103, Jan. 11, 2016, Eff date Jan. 22, 2016; Amended by Amended Ord. 16-029, May 11, 2016, Eff date May 23, 2016; Amended by Ord. 18-011, Mar. 21, 2018, Eff date May 20, 2018; Amended by Amended Ord. 19-020, July 3, 2019, Eff date Oct. 14, 2019).
This section is included in your selections.
Minor architectural features, including cornices, eaves, sills, fireplaces, chimneys and flues, open beams, bay windows,
greenhouse
windows, trellises, ornamental elements, and other similar features of a minor nature may extend or project into a required
setback
a distance of not more than 30 percent of the required
setback
if the following conditions are met:
Except for eaves, cornices, and sills, the combined length of all such features along any one
building
wall shall not exceed 20 percent of the length of that
building
wall; and
Minor architectural features may not be used to extend
building
floor area into the required
setback
. Only fireplace chimneys and flues may extend to finished
grade
.
Uncovered
porches
, steps, and decks may project into a required
setback
, if they are no more than four feet above the finished ground level, at least 30 inches from any
lot
line, and project no more than six feet into a
setback
required from a
street
.
(Added by Amended Ord. 02-064, Dec. 9, 2002, Eff date Feb. 1, 2003).
This section is included in your selections.
Front
setback
exceptions for new
structures
from existing
road network elements
listed in SCC Tables
30.23.041
through
30.23.047
shall be as follows:
The minimum front
setback
from a
road network element
may be averaged when at least 50 percent of the
lots
on the same side of the
road network element
, and within 165 feet of either side of the subject
lot
, are improved with permitted
buildings
. The front
setback
shall be determined by averaging the front
setback
of those
structures
on those
lots
whose
setback
is equal to or less than the
setback
required in the underlying zone; provided, that the
setback
for a vacant
lot
is that required in the bulk matrices for the underlying zone.
The minimum front
setback
may be reduced one foot for each percent of natural
slope
in excess of 35 percent, as measured from the midpoint of the
front lot line
from which the reduction is sought, for a distance of 60 feet into the
lot
.
The
setback
from a temporary
turnaround
easement
shall be the greater of either:
Five feet from the
easement
line; or
The
setback
from the
right-of-way
line for the zoning classification.
New
structures
shall have a minimum five-foot
setback
from:
The edge of a
private road
network element when the
lot
does not have an
easement
to utilize the
private road
network element; or
The edge of a
restricted access right-of-way
.
The
setback
from a tract or
easement
for a
shared driveway
or a
private road
capable of serving only one or two
lots
shall be considered a side or rear
setback
if the
lot
also fronts on a public
right-of-way
.
Where one of the roads creating a corner or
through lot
is a
restricted access right-of-way
, side or rear yard
setbacks
shall apply along the
restricted access right-of-way
.
(Added by Amended Ord. 02-064, Dec. 9, 2002, Eff date Feb. 1, 2003; Amended by Amended Ord. 12-049, Oct. 3, 2012, Eff date Jan. 1, 2013).
This section is included in your selections.
(Added by Amended Ord. 02-064, Dec. 9, 2002, Eff date Feb. 1, 2003; Amended by Amended Ord. 04-003, Mar. 31, 2004, Eff date May 17, 2004; Amended by Amended Ord. 07-022, Apr. 23, 2007, Eff date June 4, 2007; Repealed by Amended Ord. 12-049, Oct. 3, 2012, Eff date Jan. 1, 2013).
This section is included in your selections.
A proposed
private road
network element that provides legal access to a
lot
shall not be located closer than 15 feet from any existing
structure
on the
lot
.
A proposed
private road
network element that does not provide legal access to a
lot
shall not be located closer than five feet from any existing
structure
on the
lot
.
(Added by Amended Ord. 12-049, Oct. 3, 2012, Eff date Jan. 1, 2013).
This section is included in your selections.
If two or more
lots
are built upon as one unit, and are held under common ownership, the boundary line separating the two or more
lots
may be covered by a
building
or permitted group of
buildings
. Such
lots
shall constitute a single
building
site
, and the
setbacks
required by this chapter shall apply to the aggregate of the
lots
.
(Added by Ord. 03-068, July 9, 2003, Eff date July 28, 2003).
This section is included in your selections.
No minimum
lot area
shall be so reduced or diminished that the
setbacks
or other open spaces shall be smaller than prescribed by this title, nor shall the density of population be increased in any manner except in conformity with the regulations established by this title.
No minimum
lot
dimension shall be required for the development of governmental
structures
and facilities,
utility
structures
and facilities, or
personal wireless service facilities
.
(Added by Amended Ord. 02-064, Dec. 9, 2002, Eff date Feb. 1, 2003; Amended by Amended Ord. 11-058, Jan. 25, 2012, Eff date Feb. 16, 2012; Amended by Ord. 18-011, Mar. 21, 2018, Eff date May 20, 2018).
This section is included in your selections.
In R-9,600, R-8,400, R-7,200, and LDMR zones, a
subdivision
or
short subdivision
may meet the minimum
lot area
requirement by calculating average
lot
size under this section.
Divide the
site
area in square feet by the total number of
lots
containing new
dwelling units
(
lots
for
existing dwelling units
as defined in SCC
30.91D.535
are exempt).
If the average
lot
size as computed under subsection
(1)
of this section equals or exceeds the minimum
lot area
requirement of the zone in which the property is located, then the minimum
lot area
requirement will be satisfied for the purposes of
lot
size averaging.
In no case shall the provisions under SCC
30.23.230(3)
apply to this section.
The following additional criteria apply:
Each single
lot
shall be at least 3,000 square feet in area;
Lots
in
subdivisions
and
short subdivisions
created under the provisions of this section shall have a maximum
lot coverage
of 55 percent;
Lots
with less than the prescribed minimum
lot area
requirement for the zone in which they are located shall have:
A minimum
lot width
of at least 34 feet; and
Setbacks
of 15 feet from
right-of-way
and
private roads
, except that garages must be set back 18 feet from
right-of-way
(with the exception of
alleys
) or
private roads
and
corner lots
may reduce one
right-of-way
setback
to no less than 10 feet; and
Preliminary subdivisions
approved using
lot
size averaging shall not be recorded by divisions unless such divisions individually or together as cumulative, contiguous parcels satisfy the requirements of this section.
(Added by Amended Ord. 02-064, Dec. 9, 2002, Eff date Feb. 1, 2003; Amended by Amended Ord. 03-075, Sept. 24, 2003, Eff date Oct. 6, 2003; Amended by Amended Ord. 04-081, Sept. 1, 2004, Eff date Sept. 24, 2004; Amended by Amended Ord. 06-061, Aug. 1, 2007, Eff date Oct. 1, 2007; Amended by Amended Ord. 08-101, Jan. 21, 2009, Eff date Apr. 21, 2009; Amended by Amended Ord. 13-042, July 10, 2013, Eff date July 22, 2013; Amended by Amended Ord. 14-073, Oct. 8, 2014, Eff date Oct. 27, 2014; Amended by Ord. 15-065, Oct. 14, 2015, Eff date Oct. 30, 2015; Amended by Amended Ord. 20-005, Mar. 11, 2020, Eff date Mar. 28, 2020; Amended by Amended Ord. 22-016, May 4, 2022, Eff date May 19, 2022; Amended by Amended Ord. 22-062, Oct. 26, 2022, Eff date Jan. 1, 2023; Amended by Ord. 24-058, Aug. 14, 2024, Eff date Aug. 26, 2024).
This section is included in your selections.
In F&R, R-5, and RD zones, a
short subdivision
may meet the minimum
lot area
requirement by calculating average
lot
size under this section.
Divide the
site
area in square feet by the total number of
lots
.
If the average
lot
size as computed under subsection
(1)
of this section equals or exceeds the minimum
lot area
requirement of the zone in which the property is located, then the minimum
lot area
requirement will be satisfied for the purposes of
lot
size averaging.
In no case shall the provisions under SCC
30.23.230(3)
apply to this section.
The following additional criteria apply:
Each single
lot
shall be at least 12,500 square feet in area or the minimum area necessary to comply with the county health
department
rules and regulations for on-
site
sewage disposal and potable water supply, whichever is greater;
Lots
with less than the prescribed minimum
lot area
requirement for the zone in which they are located shall have:
A minimum
lot width
of at least 75 feet; and
Setbacks
of 50 feet from
right-of-way
and
private roads
, except that
corner lots
may reduce one
right-of-way
or
private road
setback
to no less than 20 feet.
(Added by Ord. 24-058, Aug. 14, 2024, Eff date Aug. 26, 2024).
This section is included in your selections.
A
rural cluster subdivision
or
short subdivision
in a RUTA will meet the minimum
lot area
of the zone in which it is located if the average
lot
size of all
lots
is at least 7,200 square feet and each
lot
contains sufficient area to comply with the county health
department
rules and regulations for on-
site
sewage disposal.
Lots
with less than the prescribed minimum
lot area
for the zone in which they are located shall conform to the minimum
lot width
,
setbacks
, and other bulk regulations of this chapter for
lots
located in the R-7,200 zone.
(Added by Amended Ord. 02-064, Dec. 9, 2002, Eff date Feb. 1, 2003; Amended by Amended Ord. 08-087, Feb. 4, 2009, Eff date Apr. 5, 2009; Amended by Amended Ord. 22-062, Oct. 26, 2022, Eff date Jan. 1, 2023).
This section is included in your selections.
If a portion of a legally existing
lot
or parcel of land in any zone is acquired for public use in any manner, including condemnation or purchase, the remainder of the
lot
or parcel shall be considered having the required minimum
lot area
. However:
The portion of the
lot
or parcel remaining after the acquisition for public use has an area of at least one-half of that required for the minimum
lot area
in the zone in which the
lot
or parcel is located except that, in a zone requiring a minimum
lot area
of one-half acre or more, a minimum
lot area
of at least 6,000 square feet shall be required; and
After all applicable
setback
requirements are met, the remainder of the
lot
or parcel contains a rectangular space at least 30 feet by 40 feet in size which is usable for a main
building
.
The
setback
requirements of this title shall not apply to existing legal
structures
located on legally-created
lots
or parcels where the
setbacks
for such
structures
have been reduced by governmental acquisition of a portion of the
lots
or parcels and such acquisition complies with the standards promulgated for decent, safe, and sanitary housing in Section 12,
Right-of-Way
Manual, Washington State
Department
of Transportation. Any structural expansion of these existing
structures
which would increase the degree of
setback
nonconformity is prohibited.
Lots
with less than sufficient square footage to meet minimum zoning requirements may be created in approving a
short subdivision
, when all of the following apply:
As a condition of
short subdivision
approval, land must be dedicated for county road purposes pursuant to SCC
30.41B.200(4)
and such
dedication
would cause the
short subdivision
to lose one or more
lots
due to insufficient square footage to meet minimum zoning requirements;
No
lot area
may be reduced more than 10 percent below minimum zoning requirements; and
All
lots
shall meet minimum county health
department
requirements.
(Added by Amended Ord. 02-064, Dec. 9, 2002, Eff date Feb. 1, 2003; Amended by Amended Ord. 22-062, Oct. 26, 2022, Eff date Jan. 1, 2023).
This section is included in your selections.
Development on
substandard lots
, including single-
family
development under SCC
30.23.240
, is permitted, provided that it shall comply with the following requirements:
Development permitted on
substandard lots
regulated by this chapter shall be subject to compliance with all other applicable provisions of this title.
Where the combination of
substandard lots
is required or proposed for the development of a
single-family dwelling
, or other
building
or
structure
, the lands involved shall be combined and considered to be a single undivided parcel. No portion of said parcel shall be used, altered or sold in any manner which diminishes compliance with
lot area
and width requirements, nor shall any division be made which creates a
lot
with a width or area below the requirements permitted by this title. A
site
plan depicting the
lot
combination shall be recorded with the auditor prior to
permit
issuance.
The development of new
duplexes
is prohibited.
Except as provided in subsection
(3)
of this section and SCC
30.23.240
,
substandard lots
may be used for development permitted under this title and associated
incidental uses
, provided that the development:
Complies with the
setback
requirements of SCC
30.23.030
;
Complies with the county health
department
standards; and
Does not exceed the
lot coverage
requirement in SCC
30.23.030
.
(Added by Amended Ord. 11-058, Jan. 25, 2012, Eff date Feb. 16, 2012; Amended by Amended Ord. 21-018, June 9, 2021, Eff date June 19, 2021; Amended by Amended Ord. 22-062, Oct. 26, 2022, Eff date Jan. 1, 2023).
This section is included in your selections.
Use of
lots
for residential development when such
lots
have substandard area for their present zone is permitted for
single-family dwellings
and uses incidental to
single-family dwellings
if the
lot
was legally created and satisfied the
lot area
and
lot width
requirements applicable at the time of
lot
creation; but such
lots
may be used only in the manner and upon the conditions set forth below:
A
person
who owns a single
substandard lot
or two or more
substandard lots
which were not contiguous and under single ownership on December 31, 1989, may use such
lot
or
lots
, either individually or in combination, for
building
sites
, one
single-family dwelling
plus
incidental uses
thereto per
building
site
if the
building
sites
meet the
setbacks
and
lot coverage
requirements and the county health
department
standards for the zone in which they are located;
A
person
who owns two or more
substandard lots
which were contiguous and under single ownership on December 31, 1989, may use such
lots
, either individually or in combination, for up to two
building
sites
, one
single-family dwelling
plus
incidental uses
thereto per
building
site
if the
building
sites
meet the
setbacks
and
lot coverage
requirements and the county health
department
standards for the zone in which they are located. Additional contiguous
substandard lots
owned by the same
person
may be used for additional
building
sites
, one
dwelling
per
building
site
if the additional
building
sites
contain at least one acre (43,560 square feet) or 50 percent of the
lot area
required for the zone in which such
building
sites
are located, whichever is less and if the
building
sites
meet the
setbacks
and
lot coverage
requirements and the county health
department
standards for the zone in which they are located; and
Notwithstanding the provisions of subsection
(1)(b)
of this section, a
person
who owns two or more
substandard lots
which were established on or after April 15, 1957, and which were contiguous and under single ownership on December 31, 1989, may use such
lots
, either individually or in combination, for
building
sites
, one
single-family dwelling
plus
incidental uses
thereto per
building
site
if the
building
sites
meet the
setbacks
and
lot coverage
requirements and the county health
department
standards for the zone in which they are located.
Single-family dwellings
and
incidental uses
established pursuant to subsection
(1)
of this section are permitted uses and are not
nonconforming uses
.
Existing
single-family dwellings
on
substandard lots
that are nonconforming only because they do not meet the criteria of subsection
(1)
of this section may improve or add to the
single-family dwelling
and may improve, add to or add
incidental uses
to the
single-family dwelling
; provided, that any improvements or additions meet the
setbacks
and
lot coverage
requirements and the county health
department
standards for the zone in which they are located.
Existing
single-family dwellings
on
substandard lots
that are nonconforming because they do not meet the
setbacks
,
lot coverage
requirements, or county health
department
standards for the zone in which they are located may improve or add to the
single-family dwelling
and may improve, add to or add
incidental uses
to the
single-family dwelling
provided that any improvements or additions do not increase the existing nonconformity or create a new nonconformity with
setbacks
,
lot coverage
requirements, or county health
department
standards.
(Added by Amended Ord. 02-064, Dec. 9, 2002, Eff date Feb. 1, 2003; Amended by Emerg. Ord. 08-090, June 16, 2008, Eff date June 16, 2008; Amended by Emerg. Ord. 08-157, Dec. 10, 2008, Eff date Dec. 16, 2008; Amended by Emerg. Ord. 09-035, Apr. 13, 2009, Eff date Apr. 13, 2009; Reenacted by Ord. 09-101, Sept. 30, 2009, Eff date Oct. 16, 2009; Amended by Amended Ord. 22-062, Oct. 26, 2022, Eff date Jan. 1, 2023).
This section is included in your selections.
If two or more
lots
are built upon as a unit, are under one ownership, and when the common boundary line separating the
lots
is covered by a
building
or permitted group of
buildings
, the
lots
shall be considered a single
lot
, except as otherwise specifically allowed by this code.
The aggregated
lot
shall constitute a single
building
site
and the
setbacks
required by this title shall then apply to the aggregated
lot
.
(Added by Amended Ord. 02-064, Dec. 9, 2002, Eff date Feb. 1, 2003).
This section is included in your selections.
Subdivision
of a
split parcel
shall be permitted along the
UGA boundary
line by using the
short subdivision
provisions pursuant to chapter
30.41B
SCC or by submittal of a plat pursuant to chapter
30.41A
SCC. A
split parcel
may be subdivided along the
UGA boundary
line using one of three methods. First, a
split parcel
may be subdivided along the
UGA boundary
line into two
lots
, whereby one
lot
remains within the
UGA
and the other
lot
remains outside the
UGA
, pursuant to SCC
30.41B.010(5)
. Second, a
split parcel
may be subdivided as part of a
short plat
application, pursuant to SCC
30.41B.010(6)
. Finally, a
split parcel
may be subdivided as part of a plat application, pursuant to SCC
30.41A.010(3)
.
(Added by Ord. 06-062, Oct. 4, 2006, Eff date Oct. 15, 2006).
This section is included in your selections.
In urban zones, a
subdivision
or
short subdivision
that includes attached
single family dwellings
may meet the
lot
yield and bulk regulations for the zone in which it is located pursuant to this section. Such
subdivisions
or
short subdivisions
may also include detached
single family dwellings
and
accessory dwelling units
located on
lots
containing a
principal unit
.
Building
site
yield shall be an interim calculation before determining
lot
yield and shall be computed as follows:
Determine area of the
site
in square feet;
Divide the area of the
site
by the minimum
lot area
for the zone under SCC Table
30.23.032
;
The resulting quotient is the number of potential
building
sites
; and
The maximum number of
building
sites
shall be determined by rounding up to the next whole unit when a fraction of a unit is equal to five-tenths or greater.
When converting
building
sites
into proposed
lots
:
Buildings
with two
single family attached dwellings
count as one
building
;
Single family dwellings
(detached) count as one
building
; and
Attached and
detached accessory dwelling units
do not count as proposed
buildings
or
lots
for purposes of this calculation.
Each single
lot
shall be at least 1,500 square feet in area.
Lots
in
subdivisions
and
short subdivisions
created under the provisions of this section shall have a maximum
lot coverage
of 55 percent.
There is no minimum
lot width
.
Attached
single family dwellings
have no required
setback
from the abutting
lot
line.
Setbacks
from other
lot
lines shall be:
Five feet from side and
rear lot lines
, except
buildings
taller than 30 feet in the R-7,200 zone shall be set back consistent with SCC
30.23.310
.
Fifteen feet from
right-of-way
and
private roads
, except garages must be set back 18 feet from
right-of-way
(with the exception of
alleys
) or
private roads
and
corner lots
may reduce the
right-of-way
setback
to no less than 10 feet.
(Added by Ord. 24-061, Aug. 14, 2024, Eff date Aug. 26, 2024).
This section is included in your selections.
Single-
family
detached, single-
family
attached, and
duplex
structures
in the LDMR and MR zones shall have a minimum
building
separation of 10 feet except as otherwise required by subsection
(2)
of this section.
Single-
family
detached, single-
family
attached, and
duplex
structures
in the LDMR and MR zones with a third-
story
side yard ingress/egress window shall have a minimum of 15 feet
building
separation, provided that
building
separation may be reduced to 10 feet when:
The
dwelling units
are equipped with approved NFPA 13D automatic sprinkler systems; or
The
dwelling unit
boundaries are drawn with a "zero
lot
line" on one side of the unit.
(Added by Amended Ord. 12-049, Oct. 3, 2012, Eff date Jan. 1, 2013; Amended by Ord. 23-032, June 7, 2023, Eff date June 23, 2023).
This section is included in your selections.
Buildings
exceeding 30 feet in height must provide a minimum 10-foot
setback
from side and
rear lot lines
except single
family
attached,
duplex
, and
townhouse
buildings
where one or more units exceeds 30 feet in height but the height of an end unit is less than or equal to 30 feet may provide a five-foot side
setback
from that end unit.
(Added by Amended Ord. 22-016, May 4, 2022, Eff date May 19, 2022).
This section is included in your selections.
(Added by Amended Ord. 21-004, Mar. 15, 2021, Eff date Mar. 26, 2021; Repealed by Amended Ord. 21-004, Mar. 15, 2021, Eff date Mar. 26, 2022). |
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- [Home](https://snohomish.county.codes/)
- [ch. 30.22](https://snohomish.county.codes/SCC/30.22 "ch. 30.22, Uses Allowed in Zones")
- [Subtitle 30.2](https://snohomish.county.codes/SCC/30.2 "Subtitle 30.2")
- [ch. 30.23A](https://snohomish.county.codes/SCC/30.23A "ch. 30.23A, Urban Residential Design Standards")
- [Snohomish County](https://snohomishcountywa.gov/)
- [County Code](https://snohomish.county.codes/SCC)
- [Title 30, Unified Development Code](https://snohomish.county.codes/SCC/30)
- [Subtitle 30.2](https://snohomish.county.codes/SCC/30.2)
- [ch. 30.23, General Development Standards - Bulk Regulations](https://snohomish.county.codes/SCC/30.23)
- [30\.23.047, Setbacks from road network elements in other zones.](https://snohomish.county.codes/SCC/30.23.047)
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- [Title 30, Unified Development Code](https://snohomish.county.codes/SCC/30)
- [Subtitle 30.2](https://snohomish.county.codes/SCC/30.2)
- [ch. 30.23, General Development Standards - Bulk Regulations](https://snohomish.county.codes/SCC/30.23)
#### Chapter 30.23 GENERAL DEVELOPMENT STANDARDS - BULK REGULATIONS
[Search Within This](https://snohomish.county.codes/SCC/30.23/search)
This chapter is included in your selections.
Sections:
- [30\.23.010 Bulk matrices - Purpose, applicability and general provisions.](https://snohomish.county.codes/SCC/30.23.010)
- [30\.23.020 Minimum net density for residential development in UGAs.](https://snohomish.county.codes/SCC/30.23.020)
- [30\.23.030 Rural, Resource, Urban (Non-Residential) and other zone categories - Bulk matrix.](https://snohomish.county.codes/SCC/30.23.030)
- [30\.23.032 Urban Residential Zone categories - bulk matrix.](https://snohomish.county.codes/SCC/30.23.032)
- [30\.23.040 Reference notes for SCC Tables 30.23.030 and 30.23.032.](https://snohomish.county.codes/SCC/30.23.040)
- [30\.23.041 Setbacks from road network elements in Urban Zones.](https://snohomish.county.codes/SCC/30.23.041)
- [30\.23.043 Setbacks from road network elements in Rural Zones.](https://snohomish.county.codes/SCC/30.23.043)
- [30\.23.045 Setbacks from road network elements in Resource Zones.](https://snohomish.county.codes/SCC/30.23.045)
- [30\.23.047 Setbacks from road network elements in other zones.](https://snohomish.county.codes/SCC/30.23.047)
- [30\.23.049 Reference notes for SCC Tables 30.23.041 through 30.23.047.](https://snohomish.county.codes/SCC/30.23.049)
- [30\.23.050 Height requirements, exceptions and measuring height.](https://snohomish.county.codes/SCC/30.23.050)
- [30\.23.055 Repealed.](https://snohomish.county.codes/SCC/30.23.055)
- [30\.23.060 Binding site plans (BSP).](https://snohomish.county.codes/SCC/30.23.060)
- [30\.23.100 Setbacks and corner lot sight clearance triangles.](https://snohomish.county.codes/SCC/30.23.100)
- [30\.23.110 Special setbacks for certain uses.](https://snohomish.county.codes/SCC/30.23.110)
- [30\.23.115 Setback exceptions for minor architectural features.](https://snohomish.county.codes/SCC/30.23.115)
- [30\.23.120 Front setback exceptions for new structures from existing road network elements.](https://snohomish.county.codes/SCC/30.23.120)
- [30\.23.125 Repealed.](https://snohomish.county.codes/SCC/30.23.125)
- [30\.23.130 Setback for new private road network elements from existing structures.](https://snohomish.county.codes/SCC/30.23.130)
- [30\.23.150 Setback exception for lots combined as a single building site.](https://snohomish.county.codes/SCC/30.23.150)
- [30\.23.200 Reductions to lot area.](https://snohomish.county.codes/SCC/30.23.200)
- [30\.23.210 Lot size averaging – Urban zones.](https://snohomish.county.codes/SCC/30.23.210)
- [30\.23.215 Lot size averaging – F\&R, R-5, and RD zoning.](https://snohomish.county.codes/SCC/30.23.215)
- [30\.23.220 Minimum lot area for rural clusters in RUTAs.](https://snohomish.county.codes/SCC/30.23.220)
- [30\.23.230 Lot area when land is taken for public use.](https://snohomish.county.codes/SCC/30.23.230)
- [30\.23.235 Development on substandard lots - General.](https://snohomish.county.codes/SCC/30.23.235)
- [30\.23.240 Residential use of substandard lots.](https://snohomish.county.codes/SCC/30.23.240)
- [30\.23.250 Aggregation of lots.](https://snohomish.county.codes/SCC/30.23.250)
- [30\.23.260 Parcels split by UGA boundary line.](https://snohomish.county.codes/SCC/30.23.260)
- [30\.23.270 Attached single family dwellings.](https://snohomish.county.codes/SCC/30.23.270)
- [30\.23.300 Building separation for single-family detached, single-family attached, and duplex structures constructed in the LDMR and MR zones.](https://snohomish.county.codes/SCC/30.23.300)
- [30\.23.310 Building separation for buildings taller than 30 feet in the R-7,200 zone.](https://snohomish.county.codes/SCC/30.23.310)
- [30\.23.400 Repealed.](https://snohomish.county.codes/SCC/30.23.400)
###### 30\.23.010 Bulk matrices - Purpose, applicability and general provisions.[Search Within This](https://snohomish.county.codes/SCC/30.23.010/search)
This section is included in your selections.
(1) SCC Tables [30\.23.030](https://snohomish.county.codes/SCC/30.23.030#Tab30.23.030 "Table 30.23.030 Rural, Resource, Urban (Non-Residential) and Other Zone Categories Bulk Matrix"), [30\.23.032](https://snohomish.county.codes/SCC/30.23.032#Tab30.23.032 "Table 30.23.032 Urban Residential Zones Bulk Matrix"), [30\.23.041](https://snohomish.county.codes/SCC/30.23.041#Tab30.23.041 "Table 30.23.041 Setbacks from Road Network Elements in Urban Zones"), [30\.23.043](https://snohomish.county.codes/SCC/30.23.043#Tab30.23.043 "Table 30.23.043 Setbacks from Road Network Elements in Rural Zones"), [30\.23.045](https://snohomish.county.codes/SCC/30.23.045#Tab30.23.045 "Table 30.23.045 Setbacks from Road Network Elements in Resource Zones"), and [30\.23.047](https://snohomish.county.codes/SCC/30.23.047#Tab30.23.047 "Table 30.23.047 Setbacks from Road Network Elements in Other Zones") constitute the bulk matrices. The bulk matrices contain the [setback](https://snohomish.county.codes/SCC/30.91S.160), [lot coverage](https://snohomish.county.codes/SCC/30.91L.150), [building height](https://snohomish.county.codes/SCC/30.91B.240), and [lot](https://snohomish.county.codes/SCC/30.91L.120) dimension regulations for all zones in unincorporated Snohomish County.
(2) Additional [setback](https://snohomish.county.codes/SCC/30.91S.160), [lot width](https://snohomish.county.codes/SCC/30.91L.210) and [lot area](https://snohomish.county.codes/SCC/30.91L.130) requirements and exceptions are found at SCC [30\.23.100](https://snohomish.county.codes/SCC/30.23.100 "30.23.100 Setbacks and corner lot sight clearance triangles") through [30\.23.260](https://snohomish.county.codes/SCC/30.23.260 "30.23.260 Parcels split by UGA boundary line") and chapters [30\.34A](https://snohomish.county.codes/SCC/30.34A "ch. 30.34A Urban Center Development"), [30\.41C](https://snohomish.county.codes/SCC/30.41C "ch. 30.41C Rural Cluster Subdivisions and Short Subdivisions"), [30\.41G](https://snohomish.county.codes/SCC/30.41G "ch. 30.41G Cottage Housing"), [30\.42B](https://snohomish.county.codes/SCC/30.42B "ch. 30.42B Planned Residential Development") and [30\.67](https://snohomish.county.codes/SCC/30.67 "ch. 30.67 Shoreline Management Program") SCC.
(3) All [lots](https://snohomish.county.codes/SCC/30.91L.120) and [structures](https://snohomish.county.codes/SCC/30.91S.660) shall conform to the requirements listed in the bulk matrices, SCC Tables [30\.23.030](https://snohomish.county.codes/SCC/30.23.030#Tab30.23.030 "Table 30.23.030 Rural, Resource, Urban (Non-Residential) and Other Zone Categories Bulk Matrix"), [30\.23.032](https://snohomish.county.codes/SCC/30.23.032#Tab30.23.032 "Table 30.23.032 Urban Residential Zones Bulk Matrix"), [30\.23.041](https://snohomish.county.codes/SCC/30.23.041#Tab30.23.041 "Table 30.23.041 Setbacks from Road Network Elements in Urban Zones"), [30\.23.043](https://snohomish.county.codes/SCC/30.23.043#Tab30.23.043 "Table 30.23.043 Setbacks from Road Network Elements in Rural Zones"), [30\.23.045](https://snohomish.county.codes/SCC/30.23.045#Tab30.23.045 "Table 30.23.045 Setbacks from Road Network Elements in Resource Zones"), and [30\.23.047](https://snohomish.county.codes/SCC/30.23.047#Tab30.23.047 "Table 30.23.047 Setbacks from Road Network Elements in Other Zones"), unless modified elsewhere in this title.
(4) SCC [30\.23.040(41)](https://snohomish.county.codes/SCC/30.23.040\(41\) "30.23.040(41)") establishes minimum [lot area](https://snohomish.county.codes/SCC/30.91L.130) for the RU zone.
(5) For design reasons, the [director](https://snohomish.county.codes/SCC/30.91D.280) may reduce the property line [setbacks](https://snohomish.county.codes/SCC/30.91S.160) established in SCC Tables [30\.23.030](https://snohomish.county.codes/SCC/30.23.030#Tab30.23.030 "Table 30.23.030 Rural, Resource, Urban (Non-Residential) and Other Zone Categories Bulk Matrix") and [30\.23.032](https://snohomish.county.codes/SCC/30.23.032#Tab30.23.032 "Table 30.23.032 Urban Residential Zones Bulk Matrix") by up to 25 percent for walls or [structures](https://snohomish.county.codes/SCC/30.91S.660) that are 20 feet in length or less; provided, that a minimum [setback](https://snohomish.county.codes/SCC/30.91S.160) of three feet is maintained.
(6) Except as otherwise provided in this title, every required [setback](https://snohomish.county.codes/SCC/30.91S.160) shall be open and unobstructed from the ground to the sky except for trees and other natural vegetation, eaves, foundations and walls.
(7) A [setback](https://snohomish.county.codes/SCC/30.91S.160) or the open space required around any [structure](https://snohomish.county.codes/SCC/30.91S.660) or use shall not be calculated in an adjacent development’s [setback](https://snohomish.county.codes/SCC/30.91S.160) or open space for a [structure](https://snohomish.county.codes/SCC/30.91S.660) or use.
(8) SCC [30\.23.250](https://snohomish.county.codes/SCC/30.23.250 "30.23.250 Aggregation of lots") establishes the [setback](https://snohomish.county.codes/SCC/30.91S.160) requirements for aggregated [lots](https://snohomish.county.codes/SCC/30.91L.120). (Added by Amended Ord. 02-064, Dec. 9, 2002, Eff date Feb. 1, 2003; Amended by Amended Ord. 08-101, Jan. 21, 2009, Eff date Apr. 21, 2009; Amended by Amended Ord. 12-049, Oct. 3, 2012, Eff date Jan. 1, 2013).
###### 30\.23.020 Minimum net density for residential development in UGAs.[Search Within This](https://snohomish.county.codes/SCC/30.23.020/search)
This section is included in your selections.
(1) Except as provided in subsection [(2)](https://snohomish.county.codes/SCC/30.23.020\(2\) "30.23.020(2)") of this section, a minimum [net density](https://snohomish.county.codes/SCC/30.91N.035) of six [dwelling units](https://snohomish.county.codes/SCC/30.91D.530) per acre shall be required in all [UGAs](https://snohomish.county.codes/SCC/30.91U.090) for:
(a) New [subdivisions](https://snohomish.county.codes/SCC/30.91S.710), [short subdivisions](https://snohomish.county.codes/SCC/30.91S.280), PRDs, [townhouse](https://snohomish.county.codes/SCC/30.91D.525) and [mixed townhouse developments](https://snohomish.county.codes/SCC/30.91M.137), and [mobile home parks](https://snohomish.county.codes/SCC/30.91M.160); and
(b) New residential development in the LDMR, MR, and [Townhouse](https://snohomish.county.codes/SCC/30.91D.525) zones.
(2) A minimum [net density](https://snohomish.county.codes/SCC/30.91N.035) of 15 [dwelling units](https://snohomish.county.codes/SCC/30.91D.530) per acre shall be required for new residential development in the MR, NB, PCB, CB and GC zones in the Southwest [UGA](https://snohomish.county.codes/SCC/30.91U.090) where any portion of the [site](https://snohomish.county.codes/SCC/30.91S.340) is within 2,000 feet of the western edge of the [right-of-way](https://snohomish.county.codes/SCC/30.91R.200) of State Route 99 or within 800 feet of the eastern edge of the [right-of-way](https://snohomish.county.codes/SCC/30.91R.200) of State Route 99; and the [site](https://snohomish.county.codes/SCC/30.91S.340) is east of State Route 525. For [sites](https://snohomish.county.codes/SCC/30.91S.340) that are one acre or less in size, the [director](https://snohomish.county.codes/SCC/30.91D.280) may administratively approve a reduction in the minimum [net density](https://snohomish.county.codes/SCC/30.91N.035), provided that the [applicant](https://snohomish.county.codes/SCC/30.91A.220) demonstrates one or more of the following:
(a) The [site](https://snohomish.county.codes/SCC/30.91S.340) is constrained due to its unusual shape, topography, [easements](https://snohomish.county.codes/SCC/30.91E.030), or [critical areas](https://snohomish.county.codes/SCC/30.91C.340) and the minimum [net density](https://snohomish.county.codes/SCC/30.91N.035) cannot be achieved;
(b) The required [setbacks](https://snohomish.county.codes/SCC/30.91S.160) do not allow the minimum [net density](https://snohomish.county.codes/SCC/30.91N.035) to be achieved; or
(c) The project contains both residential and non-residential uses.
(3) Minimum [net density](https://snohomish.county.codes/SCC/30.91N.035) is the density of development excluding roads, [drainage](https://snohomish.county.codes/SCC/30.91D.350) [detention](https://snohomish.county.codes/SCC/30.91D.170)/[retention](https://snohomish.county.codes/SCC/30.91R.160) areas, biofiltration swales, areas required for public use, and [critical areas](https://snohomish.county.codes/SCC/30.91C.340) and their required buffers pursuant to chapters [30\.62A](https://snohomish.county.codes/SCC/30.62A "ch. 30.62A Wetlands and Fish & Wildlife Habitat Conservation Areas") and [30\.62B](https://snohomish.county.codes/SCC/30.62B "ch. 30.62B Geologically Hazardous Areas") SCC.
(4) Minimum [net density](https://snohomish.county.codes/SCC/30.91N.035) is determined by rounding up to the next whole unit or [lot](https://snohomish.county.codes/SCC/30.91L.120) when a fraction of a unit or [lot](https://snohomish.county.codes/SCC/30.91L.120) is 0.5 or greater.
(5) For new [subdivisions](https://snohomish.county.codes/SCC/30.91S.710) and [short subdivisions](https://snohomish.county.codes/SCC/30.91S.280), the minimum [lot](https://snohomish.county.codes/SCC/30.91L.120) size of the underlying zone may be reduced as necessary to allow a [lot](https://snohomish.county.codes/SCC/30.91L.120) yield that meets the minimum density requirement. Each [lot](https://snohomish.county.codes/SCC/30.91L.120) shall be at least 6,000 square feet, except as otherwise allowed by this title.
(6) The minimum [net density](https://snohomish.county.codes/SCC/30.91N.035) requirement of this section shall not apply:
(a) In the Darrington, Index, and Gold Bar [UGAs](https://snohomish.county.codes/SCC/30.91U.090); and
(b) Where sewerage regulations, SCC [30\.29.100](https://snohomish.county.codes/SCC/30.29.100 "30.29.100 New structures and land divisions within UGA - public sewer connection required - exceptions"), require a lesser density. (Added by Amended Ord. 02-064, Dec. 9, 2002, Eff date Feb. 1, 2003; Amended by Amended Ord. 06-061, Aug. 1, 2007, Eff date Oct. 1, 2007; Amended by Ord. 17-062, Oct. 18, 2017, Eff date Dec. 17, 2017; Amended by Amended Ord. 18-026, May 23, 2018, Eff date June 11, 2018; Amended by Ord. 22-020, June 1, 2022, Eff date June 12, 2022; Amended by Ord. 25-045, Aug. 13, 2025, Eff date Sept. 6, 2025).
###### 30\.23.030 Rural, Resource, Urban (Non-Residential) and other zone categories - Bulk matrix.[Search Within This](https://snohomish.county.codes/SCC/30.23.030/search)
This section is included in your selections.
Table 30.23.030 Rural, Resource, Urban (Non-Residential) and Other Zone Categories Bulk Matrix
| | [Lot](https://snohomish.county.codes/SCC/30.91L.120) Dimension (ft)[54](https://snohomish.county.codes/SCC/30.23.040\(54\)#30.23.040\(54\) "30.23.040(54)") | [Setback](https://snohomish.county.codes/SCC/30.91S.160) Requirements From: (ft)[11](https://snohomish.county.codes/SCC/30.23.040\(11\)#30.23.040\(11\) "30.23.040(11)") | | | | | | | | | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Category | Zone | Max. Bldg. Height (ft)[27](https://snohomish.county.codes/SCC/30.23.040\(27\)#30.23.040\(27\) "30.23.040(27)"),[64](https://snohomish.county.codes/SCC/30.23.040\(27\)#30.23.040\(27\) "30.23.040(27)") | Min. [Lot Area](https://snohomish.county.codes/SCC/30.91L.130)[22](https://snohomish.county.codes/SCC/30.23.040\(22\)#30.23.040\(22\) "30.23.040(22)"),[29](https://snohomish.county.codes/SCC/30.23.040\(22\)#30.23.040\(22\) "30.23.040(22)") | Min. [Lot Width](https://snohomish.county.codes/SCC/30.91L.210) | Min. [Corner Lot](https://snohomish.county.codes/SCC/30.91L.140) Width | Commercial and Industrial Zones | Residential, Multifamily, and Rural Zones[33](https://snohomish.county.codes/SCC/30.23.040\(33\)#30.23.040\(33\) "30.23.040(33)") | Resource Lands[33](https://snohomish.county.codes/SCC/30.23.040\(33\)#30.23.040\(33\) "30.23.040(33)") | Water Bodies[12](https://snohomish.county.codes/SCC/30.23.040\(12\)#30.23.040\(12\) "30.23.040(12)") | Max. [Lot Coverage](https://snohomish.county.codes/SCC/30.91L.150)[8](https://snohomish.county.codes/SCC/30.23.040\(8\)#30.23.040\(8\) "30.23.040(8)") | |
| Ag[20](https://snohomish.county.codes/SCC/30.23.040\(20\)#30.23.040\(20\) "30.23.040(20)") | Forest[21](https://snohomish.county.codes/SCC/30.23.040\(21\)#30.23.040\(21\) "30.23.040(21)") | | | | | | | | | | |
| Resource | F[38](https://snohomish.county.codes/SCC/30.23.040\(38\)#30.23.040\(38\) "30.23.040(38)") | 45[6](https://snohomish.county.codes/SCC/30.23.040\(6\)#30.23.040\(6\) "30.23.040(6)") | 20 ac[3](https://snohomish.county.codes/SCC/30.23.040\(3\)#30.23.040\(3\) "30.23.040(3)") | 300 | 300 | 100[13](https://snohomish.county.codes/SCC/30.23.040\(13\)#30.23.040\(13\) "30.23.040(13)") | 100[13](https://snohomish.county.codes/SCC/30.23.040\(13\)#30.23.040\(13\) "30.23.040(13)") | 50 | 100[30](https://snohomish.county.codes/SCC/30.23.040\(30\)#30.23.040\(30\) "30.23.040(30)") | 25[13](https://snohomish.county.codes/SCC/30.23.040\(13\)#30.23.040\(13\) "30.23.040(13)") | 35% |
| F\&R[38](https://snohomish.county.codes/SCC/30.23.040\(38\)#30.23.040\(38\) "30.23.040(38)"),[39](https://snohomish.county.codes/SCC/30.23.040\(38\)#30.23.040\(38\) "30.23.040(38)") | 30[7](https://snohomish.county.codes/SCC/30.23.040\(7\)#30.23.040\(7\) "30.23.040(7)") | 200,000 sf[2](https://snohomish.county.codes/SCC/30.23.040\(2\)#30.23.040\(2\) "30.23.040(2)"),[23](https://snohomish.county.codes/SCC/30.23.040\(2\)#30.23.040\(2\) "30.23.040(2)") | 100 | 100 | 5 | 5 | 50 | 100[30](https://snohomish.county.codes/SCC/30.23.040\(30\)#30.23.040\(30\) "30.23.040(30)") | 25 | 35% | |
| A-10[37](https://snohomish.county.codes/SCC/30.23.040\(37\)#30.23.040\(37\) "30.23.040(37) Agriculture") , [40](https://snohomish.county.codes/SCC/30.23.040\(37\)#30.23.040\(37\) "30.23.040(37) Agriculture") | 45 | 10 ac | none | none | 5 | 5 | 50 | 100[30](https://snohomish.county.codes/SCC/30.23.040\(30\)#30.23.040\(30\) "30.23.040(30)") | 25 | none | |
| Rural | RRT-10 | 45 | 10 ac | 225 | 225 | 5 | 5 | 50 | 100[30](https://snohomish.county.codes/SCC/30.23.040\(30\)#30.23.040\(30\) "30.23.040(30)") | 25 | 35% |
| R-5[37](https://snohomish.county.codes/SCC/30.23.040\(37\)#30.23.040\(37\) "30.23.040(37) Agriculture"),[38](https://snohomish.county.codes/SCC/30.23.040\(37\)#30.23.040\(37\) "30.23.040(37) Agriculture"),[39](https://snohomish.county.codes/SCC/30.23.040\(37\)#30.23.040\(37\) "30.23.040(37) Agriculture"),[40](https://snohomish.county.codes/SCC/30.23.040\(37\)#30.23.040\(37\) "30.23.040(37) Agriculture"),[46](https://snohomish.county.codes/SCC/30.23.040\(37\)#30.23.040\(37\) "30.23.040(37) Agriculture") | 45 | 200,000 sf[2](https://snohomish.county.codes/SCC/30.23.040\(2\)#30.23.040\(2\) "30.23.040(2)"),[24](https://snohomish.county.codes/SCC/30.23.040\(2\)#30.23.040\(2\) "30.23.040(2)") | 165[24](https://snohomish.county.codes/SCC/30.23.040\(24\)#30.23.040\(24\) "30.23.040(24)") | 165[24](https://snohomish.county.codes/SCC/30.23.040\(24\)#30.23.040\(24\) "30.23.040(24)") | 5 | 5 | 50 | 100[30](https://snohomish.county.codes/SCC/30.23.040\(30\)#30.23.040\(30\) "30.23.040(30)") | 25 | 35% | |
| RD[38](https://snohomish.county.codes/SCC/30.23.040\(38\)#30.23.040\(38\) "30.23.040(38)") | 45 | 200,000 | 165 | 165 | 5 | 5 | 50 | 100[30](https://snohomish.county.codes/SCC/30.23.040\(30\)#30.23.040\(30\) "30.23.040(30)") | 25 | 35% | |
| RB | 35 | none | none | none | none | 50 | 50 | 100 | none | 35% | |
| CRC | 35[43](https://snohomish.county.codes/SCC/30.23.040\(43\)#30.23.040\(43\) "30.23.040(43)") | none | none | none | none | 25 | 50 | 100 | none | 50%[44](https://snohomish.county.codes/SCC/30.23.040\(44\)#30.23.040\(44\) "30.23.040(44)") 30%[45](https://snohomish.county.codes/SCC/30.23.040\(45\)#30.23.040\(45\) "30.23.040(45)") | |
| RFS | 35 | none | none | none | none | 50 | 50 | 100 | none | 35% | |
| RI | 50 | none | none | none | none | 100 | 100 | 100 | none | 35% | |
| Other | SA-1[37](https://snohomish.county.codes/SCC/30.23.040\(37\)#30.23.040\(37\) "30.23.040(37) Agriculture"),[39](https://snohomish.county.codes/SCC/30.23.040\(37\)#30.23.040\(37\) "30.23.040(37) Agriculture") | 35 | 1 ac/43,560 sf | 150 | 150 | 5 | 5 | 50 | 100 | 25 | 35% |
| RC[37](https://snohomish.county.codes/SCC/30.23.040\(37\)#30.23.040\(37\) "30.23.040(37) Agriculture"),[38](https://snohomish.county.codes/SCC/30.23.040\(37\)#30.23.040\(37\) "30.23.040(37) Agriculture"),[39](https://snohomish.county.codes/SCC/30.23.040\(37\)#30.23.040\(37\) "30.23.040(37) Agriculture"),[40](https://snohomish.county.codes/SCC/30.23.040\(37\)#30.23.040\(37\) "30.23.040(37) Agriculture") | 35 | 100,000 sf[24](https://snohomish.county.codes/SCC/30.23.040\(24\)#30.23.040\(24\) "30.23.040(24)") | 165[24](https://snohomish.county.codes/SCC/30.23.040\(24\)#30.23.040\(24\) "30.23.040(24)") | 165[24](https://snohomish.county.codes/SCC/30.23.040\(24\)#30.23.040\(24\) "30.23.040(24)") | 5 | 5 | 50 | 100[30](https://snohomish.county.codes/SCC/30.23.040\(30\)#30.23.040\(30\) "30.23.040(30)") | 25 | 35% | |
| RU[37](https://snohomish.county.codes/SCC/30.23.040\(37\)#30.23.040\(37\) "30.23.040(37) Agriculture"),[39](https://snohomish.county.codes/SCC/30.23.040\(37\)#30.23.040\(37\) "30.23.040(37) Agriculture") | 35 | [41](https://snohomish.county.codes/SCC/30.23.040\(41\)#30.23.040\(41\) "30.23.040(41)") | 60 | 65 | 5 | 5 | 50 | 100 | 25 | 35% | |
| R 20,000[37](https://snohomish.county.codes/SCC/30.23.040\(37\)#30.23.040\(37\) "30.23.040(37) Agriculture"),[39](https://snohomish.county.codes/SCC/30.23.040\(37\)#30.23.040\(37\) "30.23.040(37) Agriculture") | 25 | 20,000 sf | 85 | 90 | 5 | 5 | 50 | 100 | 25 | 35% | |
| R12,500[40](https://snohomish.county.codes/SCC/30.23.040\(40\)#30.23.040\(40\) "30.23.040(40)") | 30 | 12,500 sf | 75 | 80 | 5 | 5 | 50 | 100 | 25 | 35% | |
| WFB | 30 | 7,200 sf[23](https://snohomish.county.codes/SCC/30.23.040\(23\)#30.23.040\(23\) "30.23.040(23)") | 60 | 65 | 5 | 5 | 50 | 100 | 25 | 35% | |
| Urban (Non-Residential) | NB[1](https://snohomish.county.codes/SCC/30.23.040\(1\)#30.23.040\(1\) "30.23.040(1)") | 40[14](https://snohomish.county.codes/SCC/30.23.040\(14\)#30.23.040\(14\) "30.23.040(14)") | none | none | none | none | 10 | none | 100 | none | 65% |
| PCB[1](https://snohomish.county.codes/SCC/30.23.040\(1\)#30.23.040\(1\) "30.23.040(1)") | 40[14](https://snohomish.county.codes/SCC/30.23.040\(14\)#30.23.040\(14\) "30.23.040(14)") | none[19](https://snohomish.county.codes/SCC/30.23.040\(19\)#30.23.040\(19\) "30.23.040(19)") | none | none | none | 10 | none | 100 | none | none | |
| CB[1](https://snohomish.county.codes/SCC/30.23.040\(1\)#30.23.040\(1\) "30.23.040(1)") | 35[14](https://snohomish.county.codes/SCC/30.23.040\(14\)#30.23.040\(14\) "30.23.040(14)") | none | none | none | none | 10 | none | 100 | none | 50% | |
| GC[1](https://snohomish.county.codes/SCC/30.23.040\(1\)#30.23.040\(1\) "30.23.040(1)") | 45[14](https://snohomish.county.codes/SCC/30.23.040\(14\)#30.23.040\(14\) "30.23.040(14)") | none | none | none | none | 10 | none | 100 | none | 50% | |
| IP | 65 | none | none | none | none[17](https://snohomish.county.codes/SCC/30.23.040\(17\)#30.23.040\(17\) "30.23.040(17)") | 25[17](https://snohomish.county.codes/SCC/30.23.040\(17\)#30.23.040\(17\) "30.23.040(17)") | none | 100 | none | 50% | |
| BP[1](https://snohomish.county.codes/SCC/30.23.040\(1\)#30.23.040\(1\) "30.23.040(1)") | 50 | none[19](https://snohomish.county.codes/SCC/30.23.040\(19\)#30.23.040\(19\) "30.23.040(19)") | none | none | none | 25 | none | 100 | none | 35% | |
| LI | 50 | none | none | none | none | 50 | none | 100 | none | none | |
| HI | 65 | none | none | none | none | 50 | none | 100 | none | none | |
| UC[63](https://snohomish.county.codes/SCC/30.23.040\(63\)#30.23.040\(63\) "30.23.040(63)") | 90 | none | none | none | none | See SCC [30\.34A.040(2)](https://snohomish.county.codes/SCC/30.34A.040\(2\) "30.34A.040(2)") | none | 100 | none | none | |
| MUC | See SCC [30\.31G.020](https://snohomish.county.codes/SCC/30.31G.020 "30.31G.020 Bulk regulations") | none | none | none | none | 10 | none | 100 | none | none | |
Notes: See SCC [30\.23.040](https://snohomish.county.codes/SCC/30.23.040 "30.23.040 Reference notes for SCC Tables 30.23.030 and 30.23.032") for reference notes listed in Table [30\.23.030](https://snohomish.county.codes/SCC/30.23.030#Tab30.23.030 "Table 30.23.030 Rural, Resource, Urban (Non-Residential) and Other Zone Categories Bulk Matrix").
(Amended by Amended Ord. 12-049, Oct. 3, 2012, Eff date Jan. 1, 2013; Amended by Amended Ord. 15-025, May 6, 2015, Eff date May 24, 2015; Amended by Amended Ord. 18-026, May 23, 2018, Eff date June 11, 2018; Amended by Ord. 20-020, June 24, 2020, Eff date July 11, 2020; Amended by Ord. 20-080, Dec. 16, 2020, Eff date Jan. 9, 2021; Amended by Amended Ord. 21-060, Oct. 6, 2021, Eff date Oct. 22, 2021; Amended by Amended Ord. 24-065, Dec. 4, 2024, Eff date Dec. 22, 2024).
###### 30\.23.032 Urban Residential Zone categories - bulk matrix.[Search Within This](https://snohomish.county.codes/SCC/30.23.032/search)
This section is included in your selections.
Table 30.23.032 Urban Residential Zones Bulk Matrix
| Category | Zone | [Lot](https://snohomish.county.codes/SCC/30.91L.120) Dimension (feet)[54](https://snohomish.county.codes/SCC/30.23.040\(54\)#30.23.040\(54\) "30.23.040(54)") | Minimum [Setback](https://snohomish.county.codes/SCC/30.91S.160) Requirements From (feet) [11](https://snohomish.county.codes/SCC/30.23.040\(11\)#30.23.040\(11\) "30.23.040(11)"), [33](https://snohomish.county.codes/SCC/30.23.040\(33\)#30.23.040\(33\) "30.23.040(33)") | Maximum [Lot Coverage](https://snohomish.county.codes/SCC/30.91L.150) [8](https://snohomish.county.codes/SCC/30.23.040\(8\)#30.23.040\(8\) "30.23.040(8)") | | | | | | | | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Minimum [Lot Area](https://snohomish.county.codes/SCC/30.91L.130) [29](https://snohomish.county.codes/SCC/30.23.040\(29\)#30.23.040\(29\) "30.23.040(29)") (square feet) | Minimum [Lot Width](https://snohomish.county.codes/SCC/30.91L.210) | Maximum [Building Height](https://snohomish.county.codes/SCC/30.91B.240) (feet) [16](https://snohomish.county.codes/SCC/30.23.040\(16\)#30.23.040\(16\) "30.23.040(16)"), [27](https://snohomish.county.codes/SCC/30.23.040\(27\)#30.23.040\(27\) "30.23.040(27)"), [64](https://snohomish.county.codes/SCC/30.23.040\(64\)#30.23.040\(64\) "30.23.040(64)") | Side and [Rear Lot Lines](https://snohomish.county.codes/SCC/30.91L.180) Adjacent to: | Resource Lands | Seismic Hazards | | | | | | | |
| Commercial and Industrial Zones | R-9,600, R‑8,400, and R-7,200 Zones | Other Urban Residential Zones | Rural Zones | [Agriculture](https://snohomish.county.codes/SCC/30.91A.110) | Forest | | | | | | | |
| Urban Residential | R-9,600 | 9,600[23](https://snohomish.county.codes/SCC/30.23.040\(23\)#30.23.040\(23\) "30.23.040(23)") | 70 | 30 | 10 | 5 | 5 | 5 | See SCC [30\.32B.130](https://snohomish.county.codes/SCC/30.32B.130 "30.32B.130 Setbacks for new dwellings") | See SCC [30\.32A.110](https://snohomish.county.codes/SCC/30.32A.110 "30.32A.110 Siting of new structures: local forest land or adjacent to forest land") | See chapters [30\.51A](https://snohomish.county.codes/SCC/30.51A "ch. 30.51A Development in Seismic Hazard Areas") and [30\.62B](https://snohomish.county.codes/SCC/30.62B "ch. 30.62B Geologically Hazardous Areas") SCC | 35% |
| R-8,400 | 8,400[23](https://snohomish.county.codes/SCC/30.23.040\(23\)#30.23.040\(23\) "30.23.040(23)") | 65 | 30 | 10 | 5 | 5 | 5 | 35% | | | | |
| R-7,200 ([buildings](https://snohomish.county.codes/SCC/30.91B.200) ≤ 30 feet high) | 7,200[23](https://snohomish.county.codes/SCC/30.23.040\(23\)#30.23.040\(23\) "30.23.040(23)"), [65](https://snohomish.county.codes/SCC/30.23.040\(65\)#30.23.040\(65\) "30.23.040(65)") | 60 | 35 | 10 | 5 | 5 | 5 | 35% | | | | |
| R-7,200 ([buildings](https://snohomish.county.codes/SCC/30.91B.200) \> 30 feet high)[67](https://snohomish.county.codes/SCC/30.23.040\(67\)#30.23.040\(67\) "30.23.040(67)") | 10 | 10 | 10 | | | | | | | | | |
| T ([buildings](https://snohomish.county.codes/SCC/30.91B.200) ≤ 20 feet high) [59](https://snohomish.county.codes/SCC/30.23.040\(59\)#30.23.040\(59\) "30.23.040(59)") | See SCC [30\.31E.050](https://snohomish.county.codes/SCC/30.31E.050 "30.31E.050 Lot area, width and coverage") | 35 | 10 | 10 | 5 | 25 | See SCC [30\.31E.050](https://snohomish.county.codes/SCC/30.31E.050 "30.31E.050 Lot area, width and coverage") | | | | | |
| 15 | 20 | 10 | | | | | | | | | | |
| T ([buildings](https://snohomish.county.codes/SCC/30.91B.200) \> 20 feet high) [59](https://snohomish.county.codes/SCC/30.23.040\(59\)#30.23.040\(59\) "30.23.040(59)") | | | | | | | | | | | | |
| LDMR ([buildings](https://snohomish.county.codes/SCC/30.91B.200) ≤ 20 feet high) [15](https://snohomish.county.codes/SCC/30.23.040\(15\)#30.23.040\(15\) "30.23.040(15)"), [59](https://snohomish.county.codes/SCC/30.23.040\(59\)#30.23.040\(59\) "30.23.040(59)"), [61](https://snohomish.county.codes/SCC/30.23.040\(61\)#30.23.040\(61\) "30.23.040(61)"), [62](https://snohomish.county.codes/SCC/30.23.040\(62\)#30.23.040\(62\) "30.23.040(62)"), [68](https://snohomish.county.codes/SCC/30.23.040\(68\)#30.23.040\(68\) "30.23.040(68)") | 4,000 [4](https://snohomish.county.codes/SCC/30.23.040\(4\)#30.23.040\(4\) "30.23.040(4)"), [65](https://snohomish.county.codes/SCC/30.23.040\(65\)#30.23.040\(65\) "30.23.040(65)") | 60 | 45 | 10 | 10 | 5 | 25 | 50%[66](https://snohomish.county.codes/SCC/30.23.040\(66\)#30.23.040\(66\) "30.23.040(66)") | | | | |
| LDMR ([buildings](https://snohomish.county.codes/SCC/30.91B.200) 20 - 30 feet high) [15](https://snohomish.county.codes/SCC/30.23.040\(15\)#30.23.040\(15\) "30.23.040(15)"), [59](https://snohomish.county.codes/SCC/30.23.040\(59\)#30.23.040\(59\) "30.23.040(59)"), [61](https://snohomish.county.codes/SCC/30.23.040\(61\)#30.23.040\(61\) "30.23.040(61)"), [62](https://snohomish.county.codes/SCC/30.23.040\(62\)#30.23.040\(62\) "30.23.040(62)"), [68](https://snohomish.county.codes/SCC/30.23.040\(68\)#30.23.040\(68\) "30.23.040(68)") | 10 | 20 | 10 | | | | | | | | | |
| LDMR ([buildings](https://snohomish.county.codes/SCC/30.91B.200) \> 30 feet high) [15](https://snohomish.county.codes/SCC/30.23.040\(15\)#30.23.040\(15\) "30.23.040(15)"), [59](https://snohomish.county.codes/SCC/30.23.040\(59\)#30.23.040\(59\) "30.23.040(59)"), [61](https://snohomish.county.codes/SCC/30.23.040\(61\)#30.23.040\(61\) "30.23.040(61)"), [62](https://snohomish.county.codes/SCC/30.23.040\(62\)#30.23.040\(62\) "30.23.040(62)"), [68](https://snohomish.county.codes/SCC/30.23.040\(68\)#30.23.040\(68\) "30.23.040(68)") | 15 | 25 | 15 | | | | | | | | | |
| MR ([buildings](https://snohomish.county.codes/SCC/30.91B.200) ≤ 20 feet high) [5](https://snohomish.county.codes/SCC/30.23.040\(5\)#30.23.040\(5\) "30.23.040(5)"), [15](https://snohomish.county.codes/SCC/30.23.040\(15\)#30.23.040\(15\) "30.23.040(15)"), [59](https://snohomish.county.codes/SCC/30.23.040\(59\)#30.23.040\(59\) "30.23.040(59)"), [61](https://snohomish.county.codes/SCC/30.23.040\(61\)#30.23.040\(61\) "30.23.040(61)"), [62](https://snohomish.county.codes/SCC/30.23.040\(62\)#30.23.040\(62\) "30.23.040(62)"), [68](https://snohomish.county.codes/SCC/30.23.040\(68\)#30.23.040\(68\) "30.23.040(68)") | 2,000 [5](https://snohomish.county.codes/SCC/30.23.040\(5\)#30.23.040\(5\) "30.23.040(5)"), [9](https://snohomish.county.codes/SCC/30.23.040\(9\)#30.23.040\(9\) "30.23.040(9)"), [65](https://snohomish.county.codes/SCC/30.23.040\(65\)#30.23.040\(65\) "30.23.040(65)") | 60 [9](https://snohomish.county.codes/SCC/30.23.040\(9\)#30.23.040\(9\) "30.23.040(9)") | 45 [14](https://snohomish.county.codes/SCC/30.23.040\(14\)#30.23.040\(14\) "30.23.040(14)") | 10 | 10 | 5 | 25 | 50%[9](https://snohomish.county.codes/SCC/30.23.040\(9\)#30.23.040\(9\) "30.23.040(9)"), [66](https://snohomish.county.codes/SCC/30.23.040\(66\)#30.23.040\(66\) "30.23.040(66)") | | | | |
| MR ([buildings](https://snohomish.county.codes/SCC/30.91B.200) 20 - 30 feet high) [5](https://snohomish.county.codes/SCC/30.23.040\(5\)#30.23.040\(5\) "30.23.040(5)"), [15](https://snohomish.county.codes/SCC/30.23.040\(15\)#30.23.040\(15\) "30.23.040(15)"), [59](https://snohomish.county.codes/SCC/30.23.040\(59\)#30.23.040\(59\) "30.23.040(59)"), [61](https://snohomish.county.codes/SCC/30.23.040\(61\)#30.23.040\(61\) "30.23.040(61)"), [62](https://snohomish.county.codes/SCC/30.23.040\(62\)#30.23.040\(62\) "30.23.040(62)"), [68](https://snohomish.county.codes/SCC/30.23.040\(68\)#30.23.040\(68\) "30.23.040(68)") | 10 | 20 | 10 | | | | | | | | | |
| MR ([buildings](https://snohomish.county.codes/SCC/30.91B.200) \> 30 feet high) [5](https://snohomish.county.codes/SCC/30.23.040\(5\)#30.23.040\(5\) "30.23.040(5)"), [15](https://snohomish.county.codes/SCC/30.23.040\(15\)#30.23.040\(15\) "30.23.040(15)"), [59](https://snohomish.county.codes/SCC/30.23.040\(59\)#30.23.040\(59\) "30.23.040(59)"), [61](https://snohomish.county.codes/SCC/30.23.040\(61\)#30.23.040\(61\) "30.23.040(61)"), [62](https://snohomish.county.codes/SCC/30.23.040\(62\)#30.23.040\(62\) "30.23.040(62)"), [68](https://snohomish.county.codes/SCC/30.23.040\(68\)#30.23.040\(68\) "30.23.040(68)") | 15 | 25 [60](https://snohomish.county.codes/SCC/30.23.040\(60\)#30.23.040\(60\) "30.23.040(60)") | 15 | | | | | | | | | |
| MHP | [55](https://snohomish.county.codes/SCC/30.23.040\(55\)#30.23.040\(55\) "30.23.040(55)") | None | 25 | See SCC [30\.42E.100(5)(a)](https://snohomish.county.codes/SCC/30.42E.100\(5\)\(a\) "30.42E.100(5)(a) Setbacks") | 50% | | | | | | | |
See SCC [30\.23.040](https://snohomish.county.codes/SCC/30.23.040 "30.23.040 Reference notes for SCC Tables 30.23.030 and 30.23.032") for reference notes listed in Table [30\.23.032](https://snohomish.county.codes/SCC/30.23.032#Tab30.23.032 "Table 30.23.032 Urban Residential Zones Bulk Matrix").
(Added by Amended Ord. 12-049, Oct. 3, 2012, Eff date Jan. 1, 2013; Amended by Amended Ord. 15-025, May 6, 2015, Eff date May 24, 2015; Amended by Amended Ord. 16-029, May 11, 2016, Eff date May 23, 2016; Amended by Ord. 17-062, Oct. 18, 2017, Eff date Dec. 17, 2017; Amended by Amended Ord. 18-026, May 23, 2018, Eff date June 11, 2018; Amended by Amended Ord. 21-004, Mar. 15, 2021, Eff date Mar. 26, 2021; Amended by Amended Ord. 22-016, May 4, 2022, Eff date May 19, 2022; Amended by Amended Ord. 23-033, June 7, 2023, Eff date June 23, 2023; Amended by Ord. 24-060, Aug. 14, 2024, Eff date Aug. 26, 2024; Amended by Amended Ord. 25-033, Aug. 13, 2025, Eff date Sept. 6, 2025).
###### 30\.23.040 Reference notes for SCC Tables 30.23.030 and 30.23.032.[Search Within This](https://snohomish.county.codes/SCC/30.23.040/search)
This section is included in your selections.
(1) MR bulk requirements shall apply for all residential development permitted in the NB, PCB, CB, GC, and BP zones.
(2) When subdivisionally described, the minimum [lot area](https://snohomish.county.codes/SCC/30.91L.130) shall be 1/128th of a section.
(3) When subdivisionally described, the minimum [lot area](https://snohomish.county.codes/SCC/30.91L.130) shall be 1/32nd of a section.
(4) In the LDMR zone, the maximum density shall be calculated based on 4,000 square feet of land per [dwelling unit](https://snohomish.county.codes/SCC/30.91D.530), except that [existing dwelling units](https://snohomish.county.codes/SCC/30.91D.535) may be retained as part of [new development](https://snohomish.county.codes/SCC/30.91N.044) in the LDMR zone without counting towards the maximum density.
(5) In the MR zone the maximum density shall be calculated based on 2,000 square feet of land per [dwelling unit](https://snohomish.county.codes/SCC/30.91D.530), except that:
(a) [Existing dwelling units](https://snohomish.county.codes/SCC/30.91D.535) may be retained as part of [new development](https://snohomish.county.codes/SCC/30.91N.044) in the MR zone without counting towards the maximum density.
(b) For [sites](https://snohomish.county.codes/SCC/30.91S.340) zoned MR, NB, PCB, CB, or GC in the Southwest [UGA](https://snohomish.county.codes/SCC/30.91U.090) where any portion of the [site](https://snohomish.county.codes/SCC/30.91S.340) is within 2,000 feet of the edge of the [right-of-way](https://snohomish.county.codes/SCC/30.91R.200) of State Route 99 there is no maximum density, provided that either:
(i) One or more [transfer of development rights](https://snohomish.county.codes/SCC/30.91T.063) ([TDR](https://snohomish.county.codes/SCC/30.91T.063)) credits must be used to realize the additional density under subsection [(5)(b)](https://snohomish.county.codes/SCC/30.23.040\(5\)\(b\) "30.23.040(5)(b)") of this section according to the requirements of chapter [30\.35A](https://snohomish.county.codes/SCC/30.35A "ch. 30.35A Transfer of Development Rights") SCC; or
(ii) Developments for which the [applicant](https://snohomish.county.codes/SCC/30.91A.220) provides documentation to the [director](https://snohomish.county.codes/SCC/30.91D.280) showing that the entire project has been granted a property tax exemption by the Washington State Department of Revenue under RCW [84\.36.041](https://snohomish.county.codes/WA/RCW/84.36.041), [84\.36.042](https://snohomish.county.codes/WA/RCW/84.36.042), [84\.36.043](https://snohomish.county.codes/WA/RCW/84.36.043), or [84\.36.560](https://snohomish.county.codes/WA/RCW/84.36.560) shall be exempt from the requirements of chapter [30\.35A](https://snohomish.county.codes/SCC/30.35A "ch. 30.35A Transfer of Development Rights") SCC.
(6) Commercial [forestry](https://snohomish.county.codes/SCC/30.91F.480) [structures](https://snohomish.county.codes/SCC/30.91S.660) shall not exceed 65 feet in height.
(7) Non-residential [structures](https://snohomish.county.codes/SCC/30.91S.660) shall not exceed 45 feet in height.
(8) [Lot coverage](https://snohomish.county.codes/SCC/30.91L.150) includes all [buildings](https://snohomish.county.codes/SCC/30.91B.200) on the given [lot](https://snohomish.county.codes/SCC/30.91L.120).
(9) [Sites](https://snohomish.county.codes/SCC/30.91S.340) zoned MR, NB, PCB, CB, or GC in the Southwest [UGA](https://snohomish.county.codes/SCC/30.91U.090) where any portion of the [site](https://snohomish.county.codes/SCC/30.91S.340) is within 2,000 feet of the edge of the [right-of-way](https://snohomish.county.codes/SCC/30.91R.200) of State Route 99 are exempt from minimum [lot area](https://snohomish.county.codes/SCC/30.91L.130), minimum [lot width](https://snohomish.county.codes/SCC/30.91L.210), and maximum [lot coverage](https://snohomish.county.codes/SCC/30.91L.150) requirements.
(10) RESERVED for future use.
(11) These [setbacks](https://snohomish.county.codes/SCC/30.91S.160) shall be measured from the property line.
(12) Greater [setbacks](https://snohomish.county.codes/SCC/30.91S.160) than those listed may apply to areas subject to [Shoreline Management Program](https://snohomish.county.codes/SCC/30.91S.194) jurisdiction or [critical areas](https://snohomish.county.codes/SCC/30.91C.340) regulations in chapters [30\.62A](https://snohomish.county.codes/SCC/30.62A "ch. 30.62A Wetlands and Fish & Wildlife Habitat Conservation Areas"), [30\.62B](https://snohomish.county.codes/SCC/30.62B "ch. 30.62B Geologically Hazardous Areas"), [30\.62C](https://snohomish.county.codes/SCC/30.62C "ch. 30.62C Critical Aquifer Recharge Areas"), and [30\.67](https://snohomish.county.codes/SCC/30.67 "ch. 30.67 Shoreline Management Program") SCC. Some uses have special [setbacks](https://snohomish.county.codes/SCC/30.91S.160) identified in SCC [30\.23.110](https://snohomish.county.codes/SCC/30.23.110 "30.23.110 Special setbacks for certain uses").
(13) The listed [setbacks](https://snohomish.county.codes/SCC/30.91S.160) apply where the adjacent property is zoned F. In all other cases, [setbacks](https://snohomish.county.codes/SCC/30.91S.160) are the same as in the R-8,400 zone. In the F zone, the [setbacks](https://snohomish.county.codes/SCC/30.91S.160) for residential [structures](https://snohomish.county.codes/SCC/30.91S.660) on 10 acres or less which were legally created prior to being zoned to F shall be the same as in the R-8,400 zone.
(14) The maximum [building height](https://snohomish.county.codes/SCC/30.91B.240) is 75 feet for multifamily [structures](https://snohomish.county.codes/SCC/30.91S.660) on [sites](https://snohomish.county.codes/SCC/30.91S.340) zoned MR, NB, PCB, CB, and GC that are in the Southwest [UGA](https://snohomish.county.codes/SCC/30.91U.090) where any portion of the [site](https://snohomish.county.codes/SCC/30.91S.340) is within 2,000 feet of the edge of the [right-of-way](https://snohomish.county.codes/SCC/30.91R.200) of State Route 99. Subject to the requirements in SCC [30\.22.100](https://snohomish.county.codes/SCC/30.22.100 "30.22.100 Urban Zone Categories Use Matrix"), non-residential uses are allowed on the first floor of multifamily [structures](https://snohomish.county.codes/SCC/30.91S.660) on [sites](https://snohomish.county.codes/SCC/30.91S.340) zoned NB, PCB, CB, and GC that are in the Southwest [UGA](https://snohomish.county.codes/SCC/30.91U.090) where any portion of the [site](https://snohomish.county.codes/SCC/30.91S.340) is within 2,000 feet of the edge of the [right-of-way](https://snohomish.county.codes/SCC/30.91R.200) of State Route 99.
(15) See SCC [30\.23.300](https://snohomish.county.codes/SCC/30.23.300 "30.23.300 Building separation for single-family detached, single-family attached, and duplex structures constructed in the LDMR and MR zones").
(16) The maximum [building height](https://snohomish.county.codes/SCC/30.91B.240) is increased an additional five feet when the [building](https://snohomish.county.codes/SCC/30.91B.200) includes a [daylight basement](https://snohomish.county.codes/SCC/30.91B.036), except under conditions that would violate any other applicable requirements of Title [30](https://snohomish.county.codes/SCC/30 "Title 30 Unified Development Code") SCC, including the height limit requirements of the [Shoreline Management Program](https://snohomish.county.codes/SCC/30.91S.194) (SCC [30\.67.460](https://snohomish.county.codes/SCC/30.67.460 "30.67.460 Bulk standards")), [airport](https://snohomish.county.codes/SCC/30.91A.120) compatibility regulations (SCC [30\.32E.060](https://snohomish.county.codes/SCC/30.32E.060 "30.32E.060 Federal Aviation Administration review")), and urban residential design standards (chapter [30\.23A](https://snohomish.county.codes/SCC/30.23A "ch. 30.23A Urban Residential Design Standards") SCC).
(17) In the IP zone there shall be an additional one foot [setback](https://snohomish.county.codes/SCC/30.91S.160) for every one foot of [building height](https://snohomish.county.codes/SCC/30.91B.240) over 45 feet.
(18) RESERVED for future use.
(19) See SCC [30\.31A.020(1)](https://snohomish.county.codes/SCC/30.31A.020\(1\) "30.31A.020(1)") and [(2)](https://snohomish.county.codes/SCC/30.31A.020\(2\) "30.31A.020(2)") which specify the minimum area of a tract of land necessary for PCB or BP zoning.
(20) See additional [setback](https://snohomish.county.codes/SCC/30.91S.160) provisions for [dwellings](https://snohomish.county.codes/SCC/30.91D.490) located along the boundaries of designated [farmland](https://snohomish.county.codes/SCC/30.91F.140) contained in SCC [30\.32B.130](https://snohomish.county.codes/SCC/30.32B.130 "30.32B.130 Setbacks for new dwellings").
(21) See additional [setback](https://snohomish.county.codes/SCC/30.91S.160) provisions for [structures](https://snohomish.county.codes/SCC/30.91S.660) located adjacent to [forest lands](https://snohomish.county.codes/SCC/30.91F.460), and/or on lands designated local forest or [commercial forest](https://snohomish.county.codes/SCC/30.91C.150) contained in SCC [30\.32A.110](https://snohomish.county.codes/SCC/30.32A.110 "30.32A.110 Siting of new structures: local forest land or adjacent to forest land").
(22) The minimum [lot](https://snohomish.county.codes/SCC/30.91L.120) size for properties designated Rural Residential (RR)--10 (Resource Transition) on the [comprehensive plan](https://snohomish.county.codes/SCC/30.91C.230) shall be 10 acres.
(23) Minimum [lot area](https://snohomish.county.codes/SCC/30.91L.130) requirements may be modified within [UGAs](https://snohomish.county.codes/SCC/30.91U.090) in accordance with SCC [30\.23.020](https://snohomish.county.codes/SCC/30.23.020 "30.23.020 Minimum net density for residential development in UGAs").
(24) In [rural cluster subdivisions](https://snohomish.county.codes/SCC/30.91R.270) approved in accordance with the provisions of chapter [30\.41C](https://snohomish.county.codes/SCC/30.41C "ch. 30.41C Rural Cluster Subdivisions and Short Subdivisions") SCC, the minimum [lot area](https://snohomish.county.codes/SCC/30.91L.130) shall be as provided in SCC [30\.23.220](https://snohomish.county.codes/SCC/30.23.220 "30.23.220 Minimum lot area for rural clusters in RUTAs"). The maximum [lot area](https://snohomish.county.codes/SCC/30.91L.130) shall be 20,000 square feet or less when located in [rural/urban transition areas](https://snohomish.county.codes/SCC/30.91R.280).
(25) RESERVED for future use.
(26) RESERVED for future use.
(27) See SCC [30\.23.050](https://snohomish.county.codes/SCC/30.23.050 "30.23.050 Height requirements, exceptions and measuring height") for height limit exceptions. See also SCC [30\.67.460](https://snohomish.county.codes/SCC/30.67.460 "30.67.460 Bulk standards") for height limit requirements within [shoreline jurisdiction](https://snohomish.county.codes/SCC/30.91S.193).
(28) RESERVED for future use.
(29) See SCC [30\.23.200](https://snohomish.county.codes/SCC/30.23.200 "30.23.200 Reductions to lot area") et seq. for additional [lot area](https://snohomish.county.codes/SCC/30.91L.130) requirements and exceptions.
(30) SCC [30\.32A.120](https://snohomish.county.codes/SCC/30.32A.120 "30.32A.120 Siting of new structures: commercial forest land") (Siting of new [structures](https://snohomish.county.codes/SCC/30.91S.660): [Commercial forest](https://snohomish.county.codes/SCC/30.91C.150) land) requires an application for a new [structure](https://snohomish.county.codes/SCC/30.91S.660) on parcels designated [commercial forest](https://snohomish.county.codes/SCC/30.91C.150), but not within a designated [commercial forest](https://snohomish.county.codes/SCC/30.91C.150)\--[forest transition area](https://snohomish.county.codes/SCC/30.91F.490), to provide a minimum 500-foot [setback](https://snohomish.county.codes/SCC/30.91S.160), which shall be a resource protection area, from the property boundaries of adjacent [commercial forest](https://snohomish.county.codes/SCC/30.91C.150) lands except that if the size, shape, and/or physical [site](https://snohomish.county.codes/SCC/30.91S.340) constraints of an existing legal [lot](https://snohomish.county.codes/SCC/30.91L.120) do not allow a [setback](https://snohomish.county.codes/SCC/30.91S.160) of 500 feet, the new [structure](https://snohomish.county.codes/SCC/30.91S.660) shall maintain the maximum [setback](https://snohomish.county.codes/SCC/30.91S.160) possible, as determined by the [department](https://snohomish.county.codes/SCC/30.91D.110).
(31) [Setback](https://snohomish.county.codes/SCC/30.91S.160) requirements for mineral [excavation](https://snohomish.county.codes/SCC/30.91E.230) and processing are in SCC [30\.23.110(27)](https://snohomish.county.codes/SCC/30.23.110\(27\) "30.23.110(27) Excavation and Processing of Minerals"). Performance standards and [permit](https://snohomish.county.codes/SCC/30.91P.140) requirements are in chapter [30\.32C](https://snohomish.county.codes/SCC/30.32C "ch. 30.32C Mineral Resource Lands") SCC.
(32) For mineral [excavation](https://snohomish.county.codes/SCC/30.91E.230) and processing: The [site](https://snohomish.county.codes/SCC/30.91S.340) shall be a contiguous geographic area and have a size of not less than 10 acres, except in the case of subsurface shaft [excavations](https://snohomish.county.codes/SCC/30.91E.230), no minimum acreage is required, pursuant to SCC [30\.32C.020(1)](https://snohomish.county.codes/SCC/30.32C.020\(1\) "30.32C.020(1)").
(33) See SCC Table [30\.28.050(4)(i)](https://snohomish.county.codes/SCC/30.28.050\(4\)\(i\)#Tab30.28.050\(4\)\(i\) "Table 30.28.050(4)(i) Home Occupation Minimum Setbacks & Maximum Allowed Area") for [setback](https://snohomish.county.codes/SCC/30.91S.160) requirements for [structures](https://snohomish.county.codes/SCC/30.91S.660) containing a [home occupation](https://snohomish.county.codes/SCC/30.91H.130).
(34) RESERVED for future use.
(35) See chapter [30\.31E](https://snohomish.county.codes/SCC/30.31E "ch. 30.31E Townhouse (T) Zone") SCC, for more complete information on the [Townhouse](https://snohomish.county.codes/SCC/30.91D.525) Zone height, [setback](https://snohomish.county.codes/SCC/30.91S.160), and [lot coverage](https://snohomish.county.codes/SCC/30.91L.150) requirements.
(36) RESERVED for future use.
(37) Agriculture. All [structures](https://snohomish.county.codes/SCC/30.91S.660) used for housing or feeding animals, not including household pets, shall be located at least 30 feet from all property lines.
(38) There shall be no [subdivision](https://snohomish.county.codes/SCC/30.91S.710) of land designated [commercial forest](https://snohomish.county.codes/SCC/30.91C.150) in the [comprehensive plan](https://snohomish.county.codes/SCC/30.91C.230) except to allow installation of communication and [utility](https://snohomish.county.codes/SCC/30.91U.110) facilities if all the following requirements are met:
(a) The facility cannot suitably be located on undesignated land;
(b) The installation cannot be accomplished without [subdivision](https://snohomish.county.codes/SCC/30.91S.710);
(c) The facility is to be located on the lowest feasible [grade](https://snohomish.county.codes/SCC/30.91G.070) of [forest land](https://snohomish.county.codes/SCC/30.91F.460); and
(d) The facility removes as little land as possible from [timber](https://snohomish.county.codes/SCC/30.91T.054.2) production.
(39) On parcels designated [commercial forest](https://snohomish.county.codes/SCC/30.91C.150), but not within a designated [commercial forest](https://snohomish.county.codes/SCC/30.91C.150)\--[forest transition area](https://snohomish.county.codes/SCC/30.91F.490), establish and maintain a minimum 500-foot [setback](https://snohomish.county.codes/SCC/30.91S.160), which shall be a resource protection area, from the property boundaries of adjacent [commercial forest](https://snohomish.county.codes/SCC/30.91C.150) lands except when the size, shape, and/or physical [site](https://snohomish.county.codes/SCC/30.91S.340) constraints of an existing legal [lot](https://snohomish.county.codes/SCC/30.91L.120) do not allow a [setback](https://snohomish.county.codes/SCC/30.91S.160) of 500 feet, the new [structure](https://snohomish.county.codes/SCC/30.91S.660) shall maintain the maximum [setback](https://snohomish.county.codes/SCC/30.91S.160) possible as provided in SCC [30\.32A.120](https://snohomish.county.codes/SCC/30.32A.120 "30.32A.120 Siting of new structures: commercial forest land").
(40) Land designated local commercial [farmland](https://snohomish.county.codes/SCC/30.91F.140) shall not be divided into [lots](https://snohomish.county.codes/SCC/30.91L.120) of less than 10 acres unless a properly executed deed restriction which runs with the land and which provides that the land divided is to be used exclusively for agricultural purposes and specifically not for a [dwelling](https://snohomish.county.codes/SCC/30.91D.490)(s) is recorded with the Snohomish County auditor.
(41) Minimum [lot area](https://snohomish.county.codes/SCC/30.91L.130) in the rural use zone shall be the minimum allowed by the zone identified as the implementing zone by the [comprehensive plan](https://snohomish.county.codes/SCC/30.91C.230) for the plan designation applied to the [subject property](https://snohomish.county.codes/SCC/30.91S.740). Where more than one implementing zone is identified for the same designation, the minimum [lot](https://snohomish.county.codes/SCC/30.91L.120) size shall be that of the zone allowing the smallest [lot](https://snohomish.county.codes/SCC/30.91L.120) size.
(42) RESERVED for future use.
(43) Additional bulk requirements may apply. Refer to SCC [30\.31F.100](https://snohomish.county.codes/SCC/30.31F.100 "30.31F.100 General performance standards") and [30\.31F.140](https://snohomish.county.codes/SCC/30.31F.140 "30.31F.140 Clearview rural commercial zone performance standards").
(44) The 50 percent maximum [lot coverage](https://snohomish.county.codes/SCC/30.91L.150) limitation applies solely to the portion of the area within the CRC [comprehensive plan](https://snohomish.county.codes/SCC/30.91C.230) designation and zone that is centered at 180th [Street](https://snohomish.county.codes/SCC/30.91S.650) SE and SR 9, generally extending between the intersection of 172nd [Street](https://snohomish.county.codes/SCC/30.91S.650)/SR 9 to just south of 184th [Street](https://snohomish.county.codes/SCC/30.91S.650)/SR 9, as indicated on the county’s FLUM and [zoning map](https://snohomish.county.codes/SCC/30.91Z.040).
(45) The 30 percent maximum [lot coverage](https://snohomish.county.codes/SCC/30.91L.150) limitation applies solely to the portion area located within the CRC [comprehensive plan](https://snohomish.county.codes/SCC/30.91C.230) designation and zone that is centered at State Route (SR) 9 and 164th [Street](https://snohomish.county.codes/SCC/30.91S.650) SE, as indicated on the county’s Future Land Use Map (FLUM) and [zoning map](https://snohomish.county.codes/SCC/30.91Z.040).
(46) Additional [setbacks](https://snohomish.county.codes/SCC/30.91S.160) may apply to development within a [rural cluster subdivision](https://snohomish.county.codes/SCC/30.91R.270). Refer to chapter [30\.41C](https://snohomish.county.codes/SCC/30.41C "ch. 30.41C Rural Cluster Subdivisions and Short Subdivisions") SCC. Residential [subdivision](https://snohomish.county.codes/SCC/30.91S.710) is restricted pursuant to SCC [30\.32C.050](https://snohomish.county.codes/SCC/30.32C.050 "30.32C.050 Provisions for subdivision of designated mineral resource lands and lands adjacent to mineral resource lands"). Uses are restricted where the R-5 zone coincides with the Mineral Resource Overlay (MRO) to prevent development which would preclude future access to the mineral resources.
(47) RESERVED for future use.
(48) RESERVED for future use.
(49) RESERVED for future use.
(50) RESERVED for future use.
(51) RESERVED for future use.
(52) RESERVED for future use.
(53) RESERVED for future use.
(54) A [split parcel](https://snohomish.county.codes/SCC/30.91S.545) may be subdivided along the [UGA boundary](https://snohomish.county.codes/SCC/30.91U.091) line using one of three methods. First, a [split parcel](https://snohomish.county.codes/SCC/30.91S.545) may be subdivided along the [UGA boundary](https://snohomish.county.codes/SCC/30.91U.091) line into two [lots](https://snohomish.county.codes/SCC/30.91L.120), whereby one [lot](https://snohomish.county.codes/SCC/30.91L.120) remains within the [UGA](https://snohomish.county.codes/SCC/30.91U.090) and the other [lot](https://snohomish.county.codes/SCC/30.91L.120) remains outside the [UGA](https://snohomish.county.codes/SCC/30.91U.090), pursuant to SCC [30\.41B.010(5)](https://snohomish.county.codes/SCC/30.41B.010\(5\) "30.41B.010(5)"). Second, a [split parcel](https://snohomish.county.codes/SCC/30.91S.545) may be subdivided as part of a [short plat](https://snohomish.county.codes/SCC/30.91S.270) application, pursuant to SCC [30\.41B.010(8)](https://snohomish.county.codes/SCC/30.41B.010\(8\) "30.41B.010(8)"). Finally, a [split parcel](https://snohomish.county.codes/SCC/30.91S.545) may be subdivided as part of a plat application, pursuant to SCC [30\.41A.010(3)](https://snohomish.county.codes/SCC/30.41A.010\(3\) "30.41A.010(3)").
(55) See SCC [30\.42E.100(9)(c)](https://snohomish.county.codes/SCC/30.42E.100\(9\)\(c\) "30.42E.100(9)(c)").
(56) RESERVED for future use.
(57) RESERVED for future use.
(58) RESERVED for future use.
(59) Relationship of [setback](https://snohomish.county.codes/SCC/30.91S.160) to [building height](https://snohomish.county.codes/SCC/30.91B.240):
The minimum [setback](https://snohomish.county.codes/SCC/30.91S.160) requirements are dependent on the heights of the [building](https://snohomish.county.codes/SCC/30.91B.200) as specified in this column. To meet the [setback](https://snohomish.county.codes/SCC/30.91S.160) requirements, [buildings](https://snohomish.county.codes/SCC/30.91B.200) over 20 feet in height must either:
(a) Set the entire [building](https://snohomish.county.codes/SCC/30.91B.200) back the minimum [setback](https://snohomish.county.codes/SCC/30.91S.160) distance; or
(b) [Setback](https://snohomish.county.codes/SCC/30.91S.160) those portions of the [building](https://snohomish.county.codes/SCC/30.91B.200) exceeding 20 feet in height to the minimum [setback](https://snohomish.county.codes/SCC/30.91S.160) distance, as illustrated in Figure [30\.23.040(59)](https://snohomish.county.codes/SCC/30.23.040\(59\)\(b\)#Fig30.23.040\(59\) "Fig. 30.23.040(59) Relationship of Building Height to Setback").
Figure 30.23.040(59). Relationship of Building Height to Setback
"A" represents the minimum [setback](https://snohomish.county.codes/SCC/30.91S.160) distance for the portion of a [building](https://snohomish.county.codes/SCC/30.91B.200) less than or equal to 20 feet in height.
"B" Represents the minimum [setback](https://snohomish.county.codes/SCC/30.91S.160) distance for the portion of a [building](https://snohomish.county.codes/SCC/30.91B.200) greater than 20 feet in height.
Note: An [applicant](https://snohomish.county.codes/SCC/30.91A.220) may choose one or more [setbacks](https://snohomish.county.codes/SCC/30.91S.160) for [buildings](https://snohomish.county.codes/SCC/30.91B.200) greater than 20 feet in height if multiple [setback](https://snohomish.county.codes/SCC/30.91S.160) requirements apply to the [building height](https://snohomish.county.codes/SCC/30.91B.240). For example, a [building](https://snohomish.county.codes/SCC/30.91B.200) that is 45 feet in height may have a 20-foot [setback](https://snohomish.county.codes/SCC/30.91S.160) for the portion of the [building](https://snohomish.county.codes/SCC/30.91B.200) between 20 and 30 feet in height, and 25-foot [setback](https://snohomish.county.codes/SCC/30.91S.160) for the portion of the [building](https://snohomish.county.codes/SCC/30.91B.200) greater than 30 feet in height.
(60) [Setback](https://snohomish.county.codes/SCC/30.91S.160) those portions of the [building](https://snohomish.county.codes/SCC/30.91B.200) exceeding 45 feet in height from the minimum side and rear yard [setbacks](https://snohomish.county.codes/SCC/30.91S.160) by one additional foot for each additional two feet of [building height](https://snohomish.county.codes/SCC/30.91B.240).
(61) Single-[family](https://snohomish.county.codes/SCC/30.91F.080) detached, single-[family](https://snohomish.county.codes/SCC/30.91F.080) attached, and [duplex](https://snohomish.county.codes/SCC/30.91D.480) [structures](https://snohomish.county.codes/SCC/30.91S.660) shall comply with the minimum [setbacks](https://snohomish.county.codes/SCC/30.91S.160) required in the R-8,400 zone.
(62) Fencing between single-[family](https://snohomish.county.codes/SCC/30.91F.080) detached, single-[family](https://snohomish.county.codes/SCC/30.91F.080) attached, and [duplex](https://snohomish.county.codes/SCC/30.91D.480) [structures](https://snohomish.county.codes/SCC/30.91S.660) shall be:
(a) Prohibited in the area that is within five feet of a third [story](https://snohomish.county.codes/SCC/30.91S.630) ingress/egress window so ladder access to the third floor window is not impeded; or
(b) Limited to either vegetative, wood, block, concrete or metal that does not exceed 42 inches in height.
(63) Additional [building height](https://snohomish.county.codes/SCC/30.91B.240) up to a maximum of 125 feet may be allowed under certain circumstances as provided for in SCC [30\.34A.040(1)](https://snohomish.county.codes/SCC/30.34A.040\(1\) "30.34A.040(1)").
(64) If located within an [airport compatibility area](https://snohomish.county.codes/SCC/30.91A.126), [building height](https://snohomish.county.codes/SCC/30.91B.240) is subject to the requirements of SCC [30\.32E.060](https://snohomish.county.codes/SCC/30.32E.060 "30.32E.060 Federal Aviation Administration review").
(65) [Townhouse](https://snohomish.county.codes/SCC/30.91D.525) and [mixed townhouse development](https://snohomish.county.codes/SCC/30.91M.137) may achieve the following density:
(a) For the R-7,200 zone, the maximum density shall be calculated based on 7,200 square feet of land per [dwelling unit](https://snohomish.county.codes/SCC/30.91D.530), but the maximum density may be increased up to 50 percent. [Existing dwelling units](https://snohomish.county.codes/SCC/30.91D.535) may be retained as part of [new development](https://snohomish.county.codes/SCC/30.91N.044) without counting towards the maximum density.
(b) For the LDMR and MR zones, the maximum density established under subsections [(4)](https://snohomish.county.codes/SCC/30.23.040\(4\) "30.23.040(4)") and [(5)](https://snohomish.county.codes/SCC/30.23.040\(5\) "30.23.040(5)") of this section may be increased up to 50 percent.
(c) Maximum density shall be determined by rounding up to the next whole unit when a fraction of a unit is equal to five-tenths or greater.
(66) The maximum [lot coverage](https://snohomish.county.codes/SCC/30.91L.150) in [townhouse](https://snohomish.county.codes/SCC/30.91D.525) and [mixed townhouse developments](https://snohomish.county.codes/SCC/30.91M.137) is 50 percent in the LDMR zone and 50 percent in the MR zone except [sites](https://snohomish.county.codes/SCC/30.91S.340) zoned MR where any portion of the [site](https://snohomish.county.codes/SCC/30.91S.340) is within 2,000 feet of the western edge of the [right-of-way](https://snohomish.county.codes/SCC/30.91R.200) of State Route 99 or within 800 feet of the eastern edge of the [right-of-way](https://snohomish.county.codes/SCC/30.91R.200) of State Route 99, and the [site](https://snohomish.county.codes/SCC/30.91S.340) is east of State Route 525 are exempt from maximum [lot coverage](https://snohomish.county.codes/SCC/30.91L.150) requirements consistent with SCC [30\.23.040(9)](https://snohomish.county.codes/SCC/30.23.040\(9\) "30.23.040(9)").
(67) See SCC [30\.23.310](https://snohomish.county.codes/SCC/30.23.310 "30.23.310 Building separation for buildings taller than 30 feet in the R-7,200 zone").
(68) [Co-living dwelling](https://snohomish.county.codes/SCC/30.91D.492) density is calculated at the rate of one-quarter of a [dwelling unit](https://snohomish.county.codes/SCC/30.91D.530) per sleeping unit. (Added by Amended Ord. 02-064, Dec. 9, 2002, Eff date Feb. 1, 2003; Amended by Ord. 05-094, Sept. 14, 2005, Eff date Sept. 29, 2005; Amended by Amended Ord. 05-083, Dec. 21, 2005, Eff date Feb. 1, 2006; Amended by Amended Ord. 05-087, Dec. 21, 2005, Eff date Feb. 1, 2006; Amended by Amended Ord. 06-004, Mar. 15, 2006, Eff date Apr. 4, 2006; Amended by Ord. 06-062, Oct. 4, 2006, Eff date Oct. 15, 2006; Amended by Ord. 06-075, Oct. 4, 2006, Eff date Oct. 15, 2006; Amended by Amended Ord. 07-022, Apr. 23, 2007, Eff date June 4, 2007; Amended by Amended Ord. 07-029, Apr. 25, 2007, Eff date May 10, 2007; Amended by Amended Ord. 06-061, Aug. 1, 2007, Eff date Oct. 1, 2007; Amended by Amended Ord. 07-084, Sept. 5, 2007, Eff date Sept. 21, 2007; Amended by Amended Ord. 08-101, Jan. 21, 2009, Eff date Apr. 21, 2009; Amended by Amended Ord. 08-087, Feb. 4, 2009, Eff date Apr. 5, 2009; Amended by Amended Ord. 09-079, May 12, 2010, Eff date May 29, 2010; Amended by Amended Ord. 10-072, Sept. 8, 2010, Eff date Oct. 3, 2010; Amended by Amended Ord. 12-018, May 2, 2012, Eff date May 21, 2012; Amended by Amended Ord. 12-025, June 6, 2012, Eff date July 27, 2012; Amended by Amended Ord. 12-049, Oct. 3, 2012, Eff date Jan. 1, 2013; Amended by Amended Ord. 15-025, May 6, 2015, Eff date May 24, 2015; Amended by Ord. 15-103, Jan. 11, 2016, Eff date Jan. 22, 2016; Amended by Amended Ord. 16-029, May 11, 2016, Eff date May 23, 2016; Amended by Amended Ord. 17-004, May 10, 2017, Eff date June 1, 2017; Amended by Ord. 17-062, Oct. 18, 2017, Eff date Dec. 17, 2017; Amended by Amended Ord. 18-026, May 23, 2018, Eff date June 11, 2018; Amended by Ord. 20-020, June 24, 2020, Eff date July 11, 2020; Amended by Ord. 20-080, Dec. 16, 2020, Eff date Jan. 9, 2021; Amended by Amended Ord. 21-004, Mar. 15, 2021, Eff date Mar. 26, 2021; Amended by Amended Ord. 21-060, Oct. 6, 2021, Eff date Oct. 22, 2021; Amended by Amended Ord. 22-016, May 4, 2022, Eff date May 19, 2022; Amended by Amended Ord. 23-033, June 7, 2023, Eff date June 23, 2023; Amended by Amended Ord. 24-028, Dec. 4, 2024, Eff date Dec. 22, 2024; Amended by Amended Ord. 25-033, Aug. 13, 2025, Eff date Sept. 6, 2025; Amended by Ord. 25-057, Dec. 3, 2025, Eff date Dec. 13, 2025).
###### 30\.23.041 Setbacks from road network elements in Urban Zones.[Search Within This](https://snohomish.county.codes/SCC/30.23.041/search)
This section is included in your selections.
Table 30.23.041 Setbacks from Road Network Elements in Urban Zones[10](https://snohomish.county.codes/SCC/30.23.049\(10\)#30.23.049\(10\) "30.23.049(10)")
| Category | Zone | Minimum [Setback](https://snohomish.county.codes/SCC/30.91S.160) for [Structure](https://snohomish.county.codes/SCC/30.91S.660) | Minimum [Setback](https://snohomish.county.codes/SCC/30.91S.160) to the Entrance of a [Covered Parking Structure](https://snohomish.county.codes/SCC/30.91C.335) | | | | | | | | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| [Public Road](https://snohomish.county.codes/SCC/30.91R.220) | **Private**[1](https://snohomish.county.codes/SCC/30.23.049\(1\)#30.23.049\(1\) "30.23.049(1)"), [2](https://snohomish.county.codes/SCC/30.23.049\(2\)#30.23.049\(2\) "30.23.049(2)") | [Alley](https://snohomish.county.codes/SCC/30.91A.150) | [Public Road](https://snohomish.county.codes/SCC/30.91R.220) | **Private**[1](https://snohomish.county.codes/SCC/30.23.049\(1\)#30.23.049\(1\) "30.23.049(1)"), [2](https://snohomish.county.codes/SCC/30.23.049\(2\)#30.23.049\(2\) "30.23.049(2)") | [Alley](https://snohomish.county.codes/SCC/30.91A.150) | | | | | | |
| **60 Feet and Over and Under 60 Feet in a Recorded Subdivision, Short Subdivision, or Binding Site Plan**[3](https://snohomish.county.codes/SCC/30.23.049\(3\)#30.23.049\(3\) "30.23.049(3)") | **Under 60 Feet**[4](https://snohomish.county.codes/SCC/30.23.049\(4\)#30.23.049\(4\) "30.23.049(4)"), [5](https://snohomish.county.codes/SCC/30.23.049\(5\)#30.23.049\(5\) "30.23.049(5)") | [Private Road](https://snohomish.county.codes/SCC/30.91R.230) | [Drive Aisle](https://snohomish.county.codes/SCC/30.91D.455), [Shared Court](https://snohomish.county.codes/SCC/30.91S.175), and [Shared Driveway](https://snohomish.county.codes/SCC/30.91D.465) | **60 Feet and Over and Under 60 Feet in a Recorded Subdivision, Short Subdivision, or Binding Site Plan**[3](https://snohomish.county.codes/SCC/30.23.049\(3\)#30.23.049\(3\) "30.23.049(3)") | **Under 60 Feet**[4](https://snohomish.county.codes/SCC/30.23.049\(4\)#30.23.049\(4\) "30.23.049(4)"), [5](https://snohomish.county.codes/SCC/30.23.049\(5\)#30.23.049\(5\) "30.23.049(5)") | [Private Road](https://snohomish.county.codes/SCC/30.91R.230) | [Drive Aisle](https://snohomish.county.codes/SCC/30.91D.455)[15](https://snohomish.county.codes/SCC/30.23.049\(15\)#30.23.049\(15\) "30.23.049(15)"), [Shared Court](https://snohomish.county.codes/SCC/30.91S.175), and [Shared Driveway](https://snohomish.county.codes/SCC/30.91D.465) | | | | |
| Urban | R-9,600 | 15 | 45 | 15 | 0 | 0 | 18 | 48 | 18 | 18 | 4 |
| R-8,400 | 15 | 45 | 15 | 0 | 0 | 18 | 48 | 18 | 18 | 4 | |
| R-7,200 | 15[13](https://snohomish.county.codes/SCC/30.23.049\(13\)#30.23.049\(13\) "30.23.049(13)") | 45[13](https://snohomish.county.codes/SCC/30.23.049\(13\)#30.23.049\(13\) "30.23.049(13)") | 15[13](https://snohomish.county.codes/SCC/30.23.049\(13\)#30.23.049\(13\) "30.23.049(13)") | 0 | 0 | 18[14](https://snohomish.county.codes/SCC/30.23.049\(14\)#30.23.049\(14\) "30.23.049(14)") | 48[14](https://snohomish.county.codes/SCC/30.23.049\(14\)#30.23.049\(14\) "30.23.049(14)") | 18[14](https://snohomish.county.codes/SCC/30.23.049\(14\)#30.23.049\(14\) "30.23.049(14)") | 18[14](https://snohomish.county.codes/SCC/30.23.049\(14\)#30.23.049\(14\) "30.23.049(14)") | 4[14](https://snohomish.county.codes/SCC/30.23.049\(14\)#30.23.049\(14\) "30.23.049(14)") | |
| T ([buildings](https://snohomish.county.codes/SCC/30.91B.200) ≤ 20 feet high)[12](https://snohomish.county.codes/SCC/30.23.049\(12\)#30.23.049\(12\) "30.23.049(12)") | 15[13](https://snohomish.county.codes/SCC/30.23.049\(13\)#30.23.049\(13\) "30.23.049(13)") | 45[13](https://snohomish.county.codes/SCC/30.23.049\(13\)#30.23.049\(13\) "30.23.049(13)") | 15[13](https://snohomish.county.codes/SCC/30.23.049\(13\)#30.23.049\(13\) "30.23.049(13)") | 0 | 0 | 18[14](https://snohomish.county.codes/SCC/30.23.049\(14\)#30.23.049\(14\) "30.23.049(14)") | 48[14](https://snohomish.county.codes/SCC/30.23.049\(14\)#30.23.049\(14\) "30.23.049(14)") | 18[14](https://snohomish.county.codes/SCC/30.23.049\(14\)#30.23.049\(14\) "30.23.049(14)") | 18[14](https://snohomish.county.codes/SCC/30.23.049\(14\)#30.23.049\(14\) "30.23.049(14)") | 4[14](https://snohomish.county.codes/SCC/30.23.049\(14\)#30.23.049\(14\) "30.23.049(14)") | |
| T ([buildings](https://snohomish.county.codes/SCC/30.91B.200) \> 20 feet high)[12](https://snohomish.county.codes/SCC/30.23.049\(12\)#30.23.049\(12\) "30.23.049(12)") | 20[13](https://snohomish.county.codes/SCC/30.23.049\(13\)#30.23.049\(13\) "30.23.049(13)") | 50[13](https://snohomish.county.codes/SCC/30.23.049\(13\)#30.23.049\(13\) "30.23.049(13)") | 20[13](https://snohomish.county.codes/SCC/30.23.049\(13\)#30.23.049\(13\) "30.23.049(13)") | 0 | 0 | 20[14](https://snohomish.county.codes/SCC/30.23.049\(14\)#30.23.049\(14\) "30.23.049(14)") | 50[14](https://snohomish.county.codes/SCC/30.23.049\(14\)#30.23.049\(14\) "30.23.049(14)") | 18[14](https://snohomish.county.codes/SCC/30.23.049\(14\)#30.23.049\(14\) "30.23.049(14)") | 18[14](https://snohomish.county.codes/SCC/30.23.049\(14\)#30.23.049\(14\) "30.23.049(14)") | 4[14](https://snohomish.county.codes/SCC/30.23.049\(14\)#30.23.049\(14\) "30.23.049(14)") | |
| LDMR ([buildings](https://snohomish.county.codes/SCC/30.91B.200) ≤ 20 feet high)[6](https://snohomish.county.codes/SCC/30.23.049\(6\)#30.23.049\(6\) "30.23.049(6)"), [7](https://snohomish.county.codes/SCC/30.23.049\(7\)#30.23.049\(7\) "30.23.049(7)"), [12](https://snohomish.county.codes/SCC/30.23.049\(12\)#30.23.049\(12\) "30.23.049(12)") | 15[13](https://snohomish.county.codes/SCC/30.23.049\(13\)#30.23.049\(13\) "30.23.049(13)") | 45[13](https://snohomish.county.codes/SCC/30.23.049\(13\)#30.23.049\(13\) "30.23.049(13)") | 15[13](https://snohomish.county.codes/SCC/30.23.049\(13\)#30.23.049\(13\) "30.23.049(13)") | 0 | 0 | 18[14](https://snohomish.county.codes/SCC/30.23.049\(14\)#30.23.049\(14\) "30.23.049(14)") | 48[14](https://snohomish.county.codes/SCC/30.23.049\(14\)#30.23.049\(14\) "30.23.049(14)") | 18[14](https://snohomish.county.codes/SCC/30.23.049\(14\)#30.23.049\(14\) "30.23.049(14)") | 18[14](https://snohomish.county.codes/SCC/30.23.049\(14\)#30.23.049\(14\) "30.23.049(14)") | 4[14](https://snohomish.county.codes/SCC/30.23.049\(14\)#30.23.049\(14\) "30.23.049(14)") | |
| LDMR ([buildings](https://snohomish.county.codes/SCC/30.91B.200) \> 20 feet high)[6](https://snohomish.county.codes/SCC/30.23.049\(6\)#30.23.049\(6\) "30.23.049(6)"), [7](https://snohomish.county.codes/SCC/30.23.049\(7\)#30.23.049\(7\) "30.23.049(7)"), [12](https://snohomish.county.codes/SCC/30.23.049\(12\)#30.23.049\(12\) "30.23.049(12)") | 20[13](https://snohomish.county.codes/SCC/30.23.049\(13\)#30.23.049\(13\) "30.23.049(13)") | 50[13](https://snohomish.county.codes/SCC/30.23.049\(13\)#30.23.049\(13\) "30.23.049(13)") | 20[13](https://snohomish.county.codes/SCC/30.23.049\(13\)#30.23.049\(13\) "30.23.049(13)") | 0 | 0 | 20[14](https://snohomish.county.codes/SCC/30.23.049\(14\)#30.23.049\(14\) "30.23.049(14)") | 50[14](https://snohomish.county.codes/SCC/30.23.049\(14\)#30.23.049\(14\) "30.23.049(14)") | 18[14](https://snohomish.county.codes/SCC/30.23.049\(14\)#30.23.049\(14\) "30.23.049(14)") | 18[14](https://snohomish.county.codes/SCC/30.23.049\(14\)#30.23.049\(14\) "30.23.049(14)") | 4[14](https://snohomish.county.codes/SCC/30.23.049\(14\)#30.23.049\(14\) "30.23.049(14)") | |
| MR | 10[13](https://snohomish.county.codes/SCC/30.23.049\(13\)#30.23.049\(13\) "30.23.049(13)") | 35[13](https://snohomish.county.codes/SCC/30.23.049\(13\)#30.23.049\(13\) "30.23.049(13)") | 10[13](https://snohomish.county.codes/SCC/30.23.049\(13\)#30.23.049\(13\) "30.23.049(13)") | 0 | 0 | 10[14](https://snohomish.county.codes/SCC/30.23.049\(14\)#30.23.049\(14\) "30.23.049(14)") | 35[14](https://snohomish.county.codes/SCC/30.23.049\(14\)#30.23.049\(14\) "30.23.049(14)") | 10[14](https://snohomish.county.codes/SCC/30.23.049\(14\)#30.23.049\(14\) "30.23.049(14)") | 10[14](https://snohomish.county.codes/SCC/30.23.049\(14\)#30.23.049\(14\) "30.23.049(14)") | 4[14](https://snohomish.county.codes/SCC/30.23.049\(14\)#30.23.049\(14\) "30.23.049(14)") | |
| MHP | 20 | 50 | 20 | 15 | 0 | 18 | 48 | 18 | 18 | 4 | |
| NB | 10[13](https://snohomish.county.codes/SCC/30.23.049\(13\)#30.23.049\(13\) "30.23.049(13)") | 40[13](https://snohomish.county.codes/SCC/30.23.049\(13\)#30.23.049\(13\) "30.23.049(13)") | 10[13](https://snohomish.county.codes/SCC/30.23.049\(13\)#30.23.049\(13\) "30.23.049(13)") | 0 | 0 | 18[14](https://snohomish.county.codes/SCC/30.23.049\(14\)#30.23.049\(14\) "30.23.049(14)") | 48[14](https://snohomish.county.codes/SCC/30.23.049\(14\)#30.23.049\(14\) "30.23.049(14)") | 18[14](https://snohomish.county.codes/SCC/30.23.049\(14\)#30.23.049\(14\) "30.23.049(14)") | 18[14](https://snohomish.county.codes/SCC/30.23.049\(14\)#30.23.049\(14\) "30.23.049(14)") | 4[14](https://snohomish.county.codes/SCC/30.23.049\(14\)#30.23.049\(14\) "30.23.049(14)") | |
| PCB | 25[13](https://snohomish.county.codes/SCC/30.23.049\(13\)#30.23.049\(13\) "30.23.049(13)") | 85[13](https://snohomish.county.codes/SCC/30.23.049\(13\)#30.23.049\(13\) "30.23.049(13)") | 25[13](https://snohomish.county.codes/SCC/30.23.049\(13\)#30.23.049\(13\) "30.23.049(13)") | 0 | 0 | 55[14](https://snohomish.county.codes/SCC/30.23.049\(14\)#30.23.049\(14\) "30.23.049(14)") | 58[14](https://snohomish.county.codes/SCC/30.23.049\(14\)#30.23.049\(14\) "30.23.049(14)") | 18[14](https://snohomish.county.codes/SCC/30.23.049\(14\)#30.23.049\(14\) "30.23.049(14)") | 18[14](https://snohomish.county.codes/SCC/30.23.049\(14\)#30.23.049\(14\) "30.23.049(14)") | 4[14](https://snohomish.county.codes/SCC/30.23.049\(14\)#30.23.049\(14\) "30.23.049(14)") | |
| CB | 25[13](https://snohomish.county.codes/SCC/30.23.049\(13\)#30.23.049\(13\) "30.23.049(13)") | 55[13](https://snohomish.county.codes/SCC/30.23.049\(13\)#30.23.049\(13\) "30.23.049(13)") | 25[13](https://snohomish.county.codes/SCC/30.23.049\(13\)#30.23.049\(13\) "30.23.049(13)") | 0 | 0 | 25[14](https://snohomish.county.codes/SCC/30.23.049\(14\)#30.23.049\(14\) "30.23.049(14)") | 55[14](https://snohomish.county.codes/SCC/30.23.049\(14\)#30.23.049\(14\) "30.23.049(14)") | 18[14](https://snohomish.county.codes/SCC/30.23.049\(14\)#30.23.049\(14\) "30.23.049(14)") | 18[14](https://snohomish.county.codes/SCC/30.23.049\(14\)#30.23.049\(14\) "30.23.049(14)") | 4[14](https://snohomish.county.codes/SCC/30.23.049\(14\)#30.23.049\(14\) "30.23.049(14)") | |
| GC | 25[13](https://snohomish.county.codes/SCC/30.23.049\(13\)#30.23.049\(13\) "30.23.049(13)") | 55[13](https://snohomish.county.codes/SCC/30.23.049\(13\)#30.23.049\(13\) "30.23.049(13)") | 25[13](https://snohomish.county.codes/SCC/30.23.049\(13\)#30.23.049\(13\) "30.23.049(13)") | 0 | 0 | 25[14](https://snohomish.county.codes/SCC/30.23.049\(14\)#30.23.049\(14\) "30.23.049(14)") | 55[14](https://snohomish.county.codes/SCC/30.23.049\(14\)#30.23.049\(14\) "30.23.049(14)") | 18[14](https://snohomish.county.codes/SCC/30.23.049\(14\)#30.23.049\(14\) "30.23.049(14)") | 18[14](https://snohomish.county.codes/SCC/30.23.049\(14\)#30.23.049\(14\) "30.23.049(14)") | 4[14](https://snohomish.county.codes/SCC/30.23.049\(14\)#30.23.049\(14\) "30.23.049(14)") | |
| IP[8](https://snohomish.county.codes/SCC/30.23.049\(8\)#30.23.049\(8\) "30.23.049(8)") | 25 | 60 | 25 | 0 | 0 | 30 | 60 | 18 | 18 | 4 | |
| BP | 25 | 60 | 25 | 0 | 0 | 30 | 60 | 18 | 18 | 4 | |
| LI | 25 | 55 | 25 | 0 | 0 | 25 | 55 | 18 | 18 | 4 | |
| HI | 25 | 55 | 25 | 0 | 0 | 25 | 55 | 18 | 18 | 4 | |
| UC | 0 | 0 | 0 | 0 | 0 | 20 | 50 | 18 | 18 | 4 | |
| MUC | 0 | 0 | 0 | 0 | 0 | 20 | 50 | 18 | 18 | 4 | |
**Note:** All minimum [setbacks](https://snohomish.county.codes/SCC/30.91S.160) are measured in feet.
(Added by Amended Ord. 12-049, Oct. 3, 2012, Eff date Jan. 1, 2013; Amended by Ord. 17-062, Oct. 18, 2017, Eff date Dec. 17, 2017; Amended by Amended Ord. 17-061, Mar. 28, 2018, Eff date May 27, 2018; Amended by Amended Ord. 18-026, May 23, 2018, Eff date June 11, 2018; Amended by Ord. 20-080, Dec. 16, 2020, Eff date Jan. 9, 2021; Amended by Amended Ord. 24-065, Dec. 4, 2024, Eff date Dec. 22, 2024).
###### 30\.23.043 Setbacks from road network elements in Rural Zones.[Search Within This](https://snohomish.county.codes/SCC/30.23.043/search)
This section is included in your selections.
Table 30.23.043 Setbacks from Road Network Elements in Rural Zones[10](https://snohomish.county.codes/SCC/30.23.049\(10\)#30.23.049\(10\) "30.23.049(10)")
| Category | Zone | Minimum [Setback](https://snohomish.county.codes/SCC/30.91S.160) For [Structure](https://snohomish.county.codes/SCC/30.91S.660) | Minimum [Setback](https://snohomish.county.codes/SCC/30.91S.160) to the Entrance of a [Covered Parking Structure](https://snohomish.county.codes/SCC/30.91C.335) | | | | | | | | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| [Public Road](https://snohomish.county.codes/SCC/30.91R.220) | Private[1](https://snohomish.county.codes/SCC/30.23.049\(1\)#30.23.049\(1\) "30.23.049(1)"), [2](https://snohomish.county.codes/SCC/30.23.049\(2\)#30.23.049\(2\) "30.23.049(2)") | [Alley](https://snohomish.county.codes/SCC/30.91A.150) | [Public Road](https://snohomish.county.codes/SCC/30.91R.220) | Private[1](https://snohomish.county.codes/SCC/30.23.049\(1\)#30.23.049\(1\) "30.23.049(1)"), [2](https://snohomish.county.codes/SCC/30.23.049\(2\)#30.23.049\(2\) "30.23.049(2)") | [Alley](https://snohomish.county.codes/SCC/30.91A.150) | | | | | | |
| 60 Feet and Over and Under 60 Feet in a Recorded [Subdivision](https://snohomish.county.codes/SCC/30.91S.710), [Short Subdivision](https://snohomish.county.codes/SCC/30.91S.280), or [Binding Site Plan](https://snohomish.county.codes/SCC/30.91B.120)[3](https://snohomish.county.codes/SCC/30.23.049\(3\)#30.23.049\(3\) "30.23.049(3)") | Under 60 Feet[4](https://snohomish.county.codes/SCC/30.23.049\(4\)#30.23.049\(4\) "30.23.049(4)"), [5](https://snohomish.county.codes/SCC/30.23.049\(5\)#30.23.049\(5\) "30.23.049(5)") | [Private Road](https://snohomish.county.codes/SCC/30.91R.230) | [Drive Aisle](https://snohomish.county.codes/SCC/30.91D.455), [Shared Court](https://snohomish.county.codes/SCC/30.91S.175) and [Shared Driveway](https://snohomish.county.codes/SCC/30.91D.465) | 60 Feet and Over and Under 60 Feet in a Recorded [Subdivision](https://snohomish.county.codes/SCC/30.91S.710), [Short Subdivision](https://snohomish.county.codes/SCC/30.91S.280) or [Binding Site Plan](https://snohomish.county.codes/SCC/30.91B.120)[3](https://snohomish.county.codes/SCC/30.23.049\(3\)#30.23.049\(3\) "30.23.049(3)") | Under 60 Feet[4](https://snohomish.county.codes/SCC/30.23.049\(4\)#30.23.049\(4\) "30.23.049(4)"), [5](https://snohomish.county.codes/SCC/30.23.049\(5\)#30.23.049\(5\) "30.23.049(5)") | [Private Road](https://snohomish.county.codes/SCC/30.91R.230) | [Drive Aisle](https://snohomish.county.codes/SCC/30.91D.455), [Shared Court](https://snohomish.county.codes/SCC/30.91S.175) and [Shared Driveway](https://snohomish.county.codes/SCC/30.91D.465) | | | | |
| Rural | RRT-10[11](https://snohomish.county.codes/SCC/30.23.049\(11\)#30.23.049\(11\) "30.23.049(11)") | 20 | 50 | 20 | 0 | 0 | 20 | 50 | 20 | 20 | 4 |
| R-5[11](https://snohomish.county.codes/SCC/30.23.049\(11\)#30.23.049\(11\) "30.23.049(11)") | 20 | 50 | 20 | 0 | 0 | 20 | 50 | 20 | 20 | 4 | |
| RD[11](https://snohomish.county.codes/SCC/30.23.049\(11\)#30.23.049\(11\) "30.23.049(11)") | 20 | 50 | 20 | 0 | 0 | 20 | 50 | 20 | 20 | 4 | |
| RB | 25 | 55 | 25 | 0 | 0 | 20 | 55 | 20 | 20 | 4 | |
| CRC | 25 | 55 | 25 | 0 | 0 | 20 | 55 | 20 | 20 | 4 | |
| RFS | 25 | 55 | 25 | 0 | 0 | 20 | 55 | 20 | 20 | 4 | |
| RI | 25 | 55 | 25 | 0 | 0 | 20 | 55 | 20 | 20 | 4 | |
(Added by Amended Ord. 12-049, Oct. 3, 2012, Eff date Jan. 1, 2013).
###### 30\.23.045 Setbacks from road network elements in Resource Zones.[Search Within This](https://snohomish.county.codes/SCC/30.23.045/search)
This section is included in your selections.
Table 30.23.045 Setbacks from Road Network Elements in Resource Zones[10](https://snohomish.county.codes/SCC/30.23.049\(10\)#30.23.049\(10\) "30.23.049(10)")
(All minimum setbacks are measured in feet)
| Category | Zone | Minimum [Setback](https://snohomish.county.codes/SCC/30.91S.160) For [Structure](https://snohomish.county.codes/SCC/30.91S.660) | Minimum [Setback](https://snohomish.county.codes/SCC/30.91S.160) to the Entrance of a [Covered Parking Structure](https://snohomish.county.codes/SCC/30.91C.335) | | | | | | | | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| [Public Road](https://snohomish.county.codes/SCC/30.91R.220) | Private[1](https://snohomish.county.codes/SCC/30.23.049\(1\)#30.23.049\(1\) "30.23.049(1)"), [2](https://snohomish.county.codes/SCC/30.23.049\(2\)#30.23.049\(2\) "30.23.049(2)") | [Alley](https://snohomish.county.codes/SCC/30.91A.150) | [Public Road](https://snohomish.county.codes/SCC/30.91R.220) | Private[1](https://snohomish.county.codes/SCC/30.23.049\(1\)#30.23.049\(1\) "30.23.049(1)"), [2](https://snohomish.county.codes/SCC/30.23.049\(2\)#30.23.049\(2\) "30.23.049(2)") | [Alley](https://snohomish.county.codes/SCC/30.91A.150) | | | | | | |
| 60 Feet and Over and Under 60 Feet in a Recorded [Subdivision](https://snohomish.county.codes/SCC/30.91S.710), [Short Subdivision](https://snohomish.county.codes/SCC/30.91S.280) or [Binding Site Plan](https://snohomish.county.codes/SCC/30.91B.120)[3](https://snohomish.county.codes/SCC/30.23.049\(3\)#30.23.049\(3\) "30.23.049(3)") | Under 60 Feet[4](https://snohomish.county.codes/SCC/30.23.049\(4\)#30.23.049\(4\) "30.23.049(4)"), [5](https://snohomish.county.codes/SCC/30.23.049\(5\)#30.23.049\(5\) "30.23.049(5)") | [Private Road](https://snohomish.county.codes/SCC/30.91R.230) | [Drive Aisle](https://snohomish.county.codes/SCC/30.91D.455), [Shared Court](https://snohomish.county.codes/SCC/30.91S.175) and [Shared Driveway](https://snohomish.county.codes/SCC/30.91D.465) | 60 Feet and Over and Under 60 Feet in a Recorded [Subdivision](https://snohomish.county.codes/SCC/30.91S.710), [Short Subdivision](https://snohomish.county.codes/SCC/30.91S.280) or [Binding Site Plan](https://snohomish.county.codes/SCC/30.91B.120)[3](https://snohomish.county.codes/SCC/30.23.049\(3\)#30.23.049\(3\) "30.23.049(3)") | Under 60 Feet[4](https://snohomish.county.codes/SCC/30.23.049\(4\)#30.23.049\(4\) "30.23.049(4)"), [5](https://snohomish.county.codes/SCC/30.23.049\(5\)#30.23.049\(5\) "30.23.049(5)") | [Private Road](https://snohomish.county.codes/SCC/30.91R.230) | [Drive Aisle](https://snohomish.county.codes/SCC/30.91D.455), [Shared Court](https://snohomish.county.codes/SCC/30.91S.175) and [Shared Driveway](https://snohomish.county.codes/SCC/30.91D.465) | | | | |
| Resource | F[9](https://snohomish.county.codes/SCC/30.23.049\(9\)#30.23.049\(9\) "30.23.049(9)"), [11](https://snohomish.county.codes/SCC/30.23.049\(11\)#30.23.049\(11\) "30.23.049(11)") | 100 | 130 | 100 | 0 | 0 | 100 | 130 | 100 | 20 | 4 |
| F\&R[11](https://snohomish.county.codes/SCC/30.23.049\(11\)#30.23.049\(11\) "30.23.049(11)") | 20 | 50 | 20 | 0 | 0 | 20 | 50 | 20 | 20 | 4 | |
| A-10 | 20 | 50 | 20 | 0 | 0 | 20 | 50 | 20 | 20 | 4 | |
(Added by Amended Ord. 12-049, Oct. 3, 2012, Eff date Jan. 1, 2013; Amended by Amended Ord. 21-060, Oct. 6, 2021, Eff date Oct. 22, 2021).
###### 30\.23.047 Setbacks from road network elements in other zones.[Search Within This](https://snohomish.county.codes/SCC/30.23.047/search)
This section is included in your selections.
Table 30.23.047 Setbacks from Road Network Elements in Other Zones[10](https://snohomish.county.codes/SCC/30.23.049\(10\)#30.23.049\(10\) "30.23.049(10)")
(All minimum setbacks are measured in feet)
| Category | Zone | Minimum [Setback](https://snohomish.county.codes/SCC/30.91S.160) For [Structure](https://snohomish.county.codes/SCC/30.91S.660) | Minimum [Setback](https://snohomish.county.codes/SCC/30.91S.160) to the Entrance of a [Covered Parking Structure](https://snohomish.county.codes/SCC/30.91C.335) | | | | | | | | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| [Public Road](https://snohomish.county.codes/SCC/30.91R.220) | Private[1](https://snohomish.county.codes/SCC/30.23.049\(1\)#30.23.049\(1\) "30.23.049(1)"), [2](https://snohomish.county.codes/SCC/30.23.049\(2\)#30.23.049\(2\) "30.23.049(2)") | [Alley](https://snohomish.county.codes/SCC/30.91A.150) | [Public Road](https://snohomish.county.codes/SCC/30.91R.220) | Private[1](https://snohomish.county.codes/SCC/30.23.049\(1\)#30.23.049\(1\) "30.23.049(1)"), [2](https://snohomish.county.codes/SCC/30.23.049\(2\)#30.23.049\(2\) "30.23.049(2)") | [Alley](https://snohomish.county.codes/SCC/30.91A.150) | | | | | | |
| 60 Feet and Over and Under 60 Feet in a Recorded [Subdivision](https://snohomish.county.codes/SCC/30.91S.710), [Short Subdivision](https://snohomish.county.codes/SCC/30.91S.280) or [Binding Site Plan](https://snohomish.county.codes/SCC/30.91B.120)[3](https://snohomish.county.codes/SCC/30.23.049\(3\)#30.23.049\(3\) "30.23.049(3)") | Under 60 Feet[4](https://snohomish.county.codes/SCC/30.23.049\(4\)#30.23.049\(4\) "30.23.049(4)"), [5](https://snohomish.county.codes/SCC/30.23.049\(5\)#30.23.049\(5\) "30.23.049(5)") | [Private Road](https://snohomish.county.codes/SCC/30.91R.230) | [Drive Aisle](https://snohomish.county.codes/SCC/30.91D.455), [Shared Court](https://snohomish.county.codes/SCC/30.91S.175) and [Shared Driveway](https://snohomish.county.codes/SCC/30.91D.465) | 60 Feet and Over and Under 60 Feet in a Recorded [Subdivision](https://snohomish.county.codes/SCC/30.91S.710), [Short Subdivision](https://snohomish.county.codes/SCC/30.91S.280) or [Binding Site Plan](https://snohomish.county.codes/SCC/30.91B.120)[3](https://snohomish.county.codes/SCC/30.23.049\(3\)#30.23.049\(3\) "30.23.049(3)") | Under 60 Feet[4](https://snohomish.county.codes/SCC/30.23.049\(4\)#30.23.049\(4\) "30.23.049(4)"), [5](https://snohomish.county.codes/SCC/30.23.049\(5\)#30.23.049\(5\) "30.23.049(5)") | [Private Road](https://snohomish.county.codes/SCC/30.91R.230) | [Drive Aisle](https://snohomish.county.codes/SCC/30.91D.455), [Shared Court](https://snohomish.county.codes/SCC/30.91S.175) and [Shared Driveway](https://snohomish.county.codes/SCC/30.91D.465) | | | | |
| Other | SA-1 | 20 | 50 | 20 | 0 | 0 | 20 | 50 | 20 | 20 | 4 |
| RC[11](https://snohomish.county.codes/SCC/30.23.049\(11\)#30.23.049\(11\) "30.23.049(11)") | 20 | 50 | 20 | 0 | 0 | 20 | 50 | 20 | 20 | 4 | |
| RU | 20 | 50 | 20 | 0 | 0 | 20 | 50 | 20 | 20 | 4 | |
| R-20,000 | 20 | 50 | 20 | 0 | 0 | 20 | 50 | 20 | 20 | 4 | |
| R-12,500 | 20 | 50 | 20 | 0 | 0 | 20 | 50 | 20 | 20 | 4 | |
| WFB | 20 | 50 | 20 | 0 | 0 | 20 | 50 | 20 | 20 | 4 | |
(Added by Amended Ord. 12-049, Oct. 3, 2012, Eff date Jan. 1, 2013).
###### 30\.23.049 Reference notes for SCC Tables 30.23.041 through 30.23.047.[Search Within This](https://snohomish.county.codes/SCC/30.23.049/search)
This section is included in your selections.
(1) The [setback](https://snohomish.county.codes/SCC/30.91S.160) shall be measured from the edge of the tract or [easement](https://snohomish.county.codes/SCC/30.91E.030). Where no tract or [easement](https://snohomish.county.codes/SCC/30.91E.030) is established, the measurement shall be made from the edge of the [road network element](https://snohomish.county.codes/SCC/30.91R.215).
(2) The [setback](https://snohomish.county.codes/SCC/30.91S.160) may be reduced to the [setback](https://snohomish.county.codes/SCC/30.91S.160) required for a [structure](https://snohomish.county.codes/SCC/30.91S.660) if a vehicle entering the [covered parking structure](https://snohomish.county.codes/SCC/30.91C.335) can turn around inside the [covered parking structure](https://snohomish.county.codes/SCC/30.91C.335) and exit without having to back out.
(3) These [setbacks](https://snohomish.county.codes/SCC/30.91S.160) shall be measured from the edge of the [right-of-way](https://snohomish.county.codes/SCC/30.91R.200).
(4) Applies to public [rights-of-way](https://snohomish.county.codes/SCC/30.91R.200) under 60 feet that are not included in development subject to the recorded [subdivision](https://snohomish.county.codes/SCC/30.91S.710), [short subdivision](https://snohomish.county.codes/SCC/30.91S.280), or [binding site plan](https://snohomish.county.codes/SCC/30.91B.120). These [setbacks](https://snohomish.county.codes/SCC/30.91S.160) shall be measured from the centerline of the [right-of-way](https://snohomish.county.codes/SCC/30.91R.200).
(5) The [county engineer](https://snohomish.county.codes/SCC/30.91C.320) may require the [front lot line](https://snohomish.county.codes/SCC/30.91L.170) [setback](https://snohomish.county.codes/SCC/30.91S.160) from a public [right-of-way](https://snohomish.county.codes/SCC/30.91R.200) be measured from a [right-of-way](https://snohomish.county.codes/SCC/30.91R.200) reservation line established in accordance with SCC [30\.24.140(1)](https://snohomish.county.codes/SCC/30.24.140\(1\) "30.24.140(1)"), when:
(a) The [right-of-way](https://snohomish.county.codes/SCC/30.91R.200) width is less than 60 feet in width and determined inadequate by the [county engineer](https://snohomish.county.codes/SCC/30.91C.320) based on:
(i) The [comprehensive plan](https://snohomish.county.codes/SCC/30.91C.230) [arterial](https://snohomish.county.codes/SCC/30.91A.270) circulation map; or
(ii) An adopted design report, roadway design or [right-of-way](https://snohomish.county.codes/SCC/30.91R.200) plan; and
(b) The [right-of-way](https://snohomish.county.codes/SCC/30.91R.200) is not located in a recorded [subdivision](https://snohomish.county.codes/SCC/30.91S.710), [short subdivision](https://snohomish.county.codes/SCC/30.91S.280) or [binding site plan](https://snohomish.county.codes/SCC/30.91B.120).
(6) Single-[family](https://snohomish.county.codes/SCC/30.91F.080) detached, single-[family](https://snohomish.county.codes/SCC/30.91F.080) attached, and [duplex](https://snohomish.county.codes/SCC/30.91D.480) [structures](https://snohomish.county.codes/SCC/30.91S.660) constructed in the LDMR and MR zones shall use the minimum [setbacks](https://snohomish.county.codes/SCC/30.91S.160) required in the R-8,400 zone.
(7) [Structures](https://snohomish.county.codes/SCC/30.91S.660) over two [stories](https://snohomish.county.codes/SCC/30.91S.630), other than single-[family](https://snohomish.county.codes/SCC/30.91F.080) detached [structures](https://snohomish.county.codes/SCC/30.91S.660), shall increase the [setbacks](https://snohomish.county.codes/SCC/30.91S.160) by three feet; provided, that the additional [setback](https://snohomish.county.codes/SCC/30.91S.160) shall only be required as an upper floor [setback](https://snohomish.county.codes/SCC/30.91S.160) for portions of residential [structures](https://snohomish.county.codes/SCC/30.91S.660) above 20 feet in height in the same manner as SCC [30\.23.040(59)](https://snohomish.county.codes/SCC/30.23.040\(59\) "30.23.040(59)").
(8) In the IP zone there shall be an additional one foot [setback](https://snohomish.county.codes/SCC/30.91S.160) for every one foot of [building height](https://snohomish.county.codes/SCC/30.91B.240) over 45 feet.
(9) In the F zone, the [setbacks](https://snohomish.county.codes/SCC/30.91S.160) for residential [structures](https://snohomish.county.codes/SCC/30.91S.660) on [lots](https://snohomish.county.codes/SCC/30.91L.120) 10 acres or less, where the [lot](https://snohomish.county.codes/SCC/30.91L.120) was legally created prior to being zoned to F, shall be the same as in the R-5 zone.
(10) See SCC [30\.23.120](https://snohomish.county.codes/SCC/30.23.120 "30.23.120 Front setback exceptions for new structures from existing road network elements") for front [setback](https://snohomish.county.codes/SCC/30.91S.160) exceptions from [road network elements](https://snohomish.county.codes/SCC/30.91R.215).
(11) See SCC [30\.41C.130](https://snohomish.county.codes/SCC/30.41C.130 "30.41C.130 Rural cluster-bulk regulations") and [30\.41C.140](https://snohomish.county.codes/SCC/30.41C.140 "30.41C.140 Bulk regulations and interim open space for rural clusters in the RUTA") for additional front [setback](https://snohomish.county.codes/SCC/30.91S.160) requirements for [lots](https://snohomish.county.codes/SCC/30.91L.120) created through the [rural cluster subdivision](https://snohomish.county.codes/SCC/30.91R.270) provisions of chapter [30\.41C](https://snohomish.county.codes/SCC/30.41C "ch. 30.41C Rural Cluster Subdivisions and Short Subdivisions") SCC.
(12) See SCC [30\.23.040(59)](https://snohomish.county.codes/SCC/30.23.040\(59\) "30.23.040(59)").
(13) In a [townhouse](https://snohomish.county.codes/SCC/30.91D.525) or [mixed townhouse development](https://snohomish.county.codes/SCC/30.91M.137), [setbacks](https://snohomish.county.codes/SCC/30.91S.160) for residential [structures](https://snohomish.county.codes/SCC/30.91S.660) may be reduced to a minimum of five feet from a public or [private road](https://snohomish.county.codes/SCC/30.91R.230).
(14) In a [townhouse](https://snohomish.county.codes/SCC/30.91D.525) or [mixed townhouse development](https://snohomish.county.codes/SCC/30.91M.137), [setbacks](https://snohomish.county.codes/SCC/30.91S.160) for entrances to [covered parking structures](https://snohomish.county.codes/SCC/30.91C.335) may be reduced under subsections [(14)(a)](https://snohomish.county.codes/SCC/30.23.049\(14\)\(a\) "30.23.049(14)(a)") and [(b)](https://snohomish.county.codes/SCC/30.23.049\(14\)\(b\) "30.23.049(14)(b)") of this section, except that such entrances to [covered parking structures](https://snohomish.county.codes/SCC/30.91C.335) shall be restricted under subsection [(14)(c)](https://snohomish.county.codes/SCC/30.23.049\(14\)\(c\) "30.23.049(14)(c)") of this section:
(a) A minimum of five feet from a public or [private road](https://snohomish.county.codes/SCC/30.91R.230).
(b) A minimum of zero feet from a [drive aisle](https://snohomish.county.codes/SCC/30.91D.455), [shared court](https://snohomish.county.codes/SCC/30.91S.175), [shared driveway](https://snohomish.county.codes/SCC/30.91D.465), or [alley](https://snohomish.county.codes/SCC/30.91A.150).
(c) The vehicular entrance to a [covered parking structure](https://snohomish.county.codes/SCC/30.91C.335) shall not be located between nine and 19 feet from an abutting [road network element](https://snohomish.county.codes/SCC/30.91R.215). An entrance to a [covered parking structure](https://snohomish.county.codes/SCC/30.91C.335) that is located at least 19 feet from the abutting [road network element](https://snohomish.county.codes/SCC/30.91R.215) may have upper-[story](https://snohomish.county.codes/SCC/30.91S.630) floors project up to four feet horizontally into the area where an entrance to a [covered parking structure](https://snohomish.county.codes/SCC/30.91C.335) is prohibited, and except as otherwise allowed under SCC [30\.23.115](https://snohomish.county.codes/SCC/30.23.115 "30.23.115 Setback exceptions for minor architectural features") for minor architectural features.
(15) The [setback](https://snohomish.county.codes/SCC/30.91S.160) from a [drive aisle](https://snohomish.county.codes/SCC/30.91D.455) that provides access to the rear of a [lot](https://snohomish.county.codes/SCC/30.91L.120), [structure](https://snohomish.county.codes/SCC/30.91S.660), or use, and is less than 20 feet in width, shall be a minimum of four feet. (Added by Amended Ord. 12-049, Oct. 3, 2012, Eff date Jan. 1, 2013; Amended by Ord. 17-062, Oct. 18, 2017, Eff date Dec. 17, 2017; Amended by Amended Ord. 17-061, Mar. 28, 2018, Eff date May 27, 2018; Amended by Ord. 25-057, Dec. 3, 2025, Eff date Dec. 13, 2025).
###### 30\.23.050 Height requirements, exceptions and measuring height.[Search Within This](https://snohomish.county.codes/SCC/30.23.050/search)
This section is included in your selections.
(1) The maximum height of [buildings](https://snohomish.county.codes/SCC/30.91B.200) and [structures](https://snohomish.county.codes/SCC/30.91S.660) shall be pursuant to the height standards in SCC Tables [30\.23.030](https://snohomish.county.codes/SCC/30.23.030#Tab30.23.030 "Table 30.23.030 Rural, Resource, Urban (Non-Residential) and Other Zone Categories Bulk Matrix") and [30\.23.032](https://snohomish.county.codes/SCC/30.23.032#Tab30.23.032 "Table 30.23.032 Urban Residential Zones Bulk Matrix"), except as provided in subsection [(2)](https://snohomish.county.codes/SCC/30.23.050\(2\) "30.23.050(2)") of this section.
(2) The following shall be exempt from the maximum height standards, except [structures](https://snohomish.county.codes/SCC/30.91S.660) and uses located in an [airport compatibility area](https://snohomish.county.codes/SCC/30.91A.126) are subject to the height review requirements of SCC [30\.32E.060](https://snohomish.county.codes/SCC/30.32E.060 "30.32E.060 Federal Aviation Administration review"):
(a) Tanks and bunkers, turrets, [church](https://snohomish.county.codes/SCC/30.91C.085) spires, belfries, domes, monuments, chimneys, water [towers](https://snohomish.county.codes/SCC/30.91T.058), fire and hose [towers](https://snohomish.county.codes/SCC/30.91T.058), observation [towers](https://snohomish.county.codes/SCC/30.91T.058), stadiums, smokestacks, flag poles, [towers](https://snohomish.county.codes/SCC/30.91T.058) and masts used to support commercial radio and television antennas, bulkheads, water tanks, scenery lofts, cooling [towers](https://snohomish.county.codes/SCC/30.91T.058), grain elevators, gravel and cement tanks and bunkers, and drive-in theater projection [screens](https://snohomish.county.codes/SCC/30.91S.070), provided they are set back at least 50 feet from any adjoining [lot](https://snohomish.county.codes/SCC/30.91L.120) line;
(b) [Towers](https://snohomish.county.codes/SCC/30.91T.058) and masts used to support [private antennas](https://snohomish.county.codes/SCC/30.91A.200), provided they meet the minimum [setback](https://snohomish.county.codes/SCC/30.91S.160) of the zoning district in which they are located, and the horizontal array of the antennas does not intersect the vertical plane of the property line;
(c) [Towers](https://snohomish.county.codes/SCC/30.91T.058), masts or poles supporting electric [utility](https://snohomish.county.codes/SCC/30.91U.110), telephone or other communication lines;
(d) Schools and educational institutions; provided, that:
(i) The use was approved as part of a [conditional use](https://snohomish.county.codes/SCC/30.91C.240) [permit](https://snohomish.county.codes/SCC/30.91P.140);
(ii) A maximum [building height](https://snohomish.county.codes/SCC/30.91B.240) of 55 feet is not exceeded; and
(iii) Any portion of any [building](https://snohomish.county.codes/SCC/30.91B.200) exceeding the underlying zoning maximum height standard is set back at least 50 feet from all of the [site](https://snohomish.county.codes/SCC/30.91S.340)’s perimeter [lot](https://snohomish.county.codes/SCC/30.91L.120) lines;
(e) Aircraft hangars located within any industrial zone; provided, that the hangar is set back at least 100 feet from any non-industrial zone;
(f) Elevator hoistways, provided they do not exceed the maximum [building height](https://snohomish.county.codes/SCC/30.91B.240) of the underlying zone by more than 30 percent or 15 feet, whichever is less; and
(g) Rooftop mechanical equipment screening, including extended parapet walls, mansards, or other roof forms that are integrated with the architecture of the [building](https://snohomish.county.codes/SCC/30.91B.200), provided it does not exceed the maximum [building height](https://snohomish.county.codes/SCC/30.91B.240) of the underlying zone by more than 30 percent or 15 feet, whichever is less.
(3) [Building height](https://snohomish.county.codes/SCC/30.91B.240) shall be measured as the vertical distance from the average final [grade](https://snohomish.county.codes/SCC/30.91G.070) to the highest point of the roof surface, based on the following roof types:
(a) For a flat or minimally pitched (less than 1:12) roof use the distance to the tallest point of the roof;
(b) For a mansard roof, use the distance to the deck line; or
(c) For a gable, hip or pitched, gambrel, vaulted, shed, or A-frame roof, use the distance to the midpoint of the pitch of the roof, measured from the peak of the roof to that point vertically above the highest exterior wall, including dormer walls.
Different roof types and their midpoints are shown in Figure [30\.23.050(4)](https://snohomish.county.codes/SCC/30.23.050\(5\)#Fig30.23.050\(4\) "Fig. 30.23.050(4) Finding the Midpoint of Different Roof Types") and [(5)](https://snohomish.county.codes/SCC/30.23.050\(5\)#Fig30.23.050\(5\) "Fig. 30.23.050(5) Calculating Building Height for Flat and Mansard Roofs"). If a [building](https://snohomish.county.codes/SCC/30.91B.200) has more than one roof type, the highest roof shall be used to determine the height of the [building](https://snohomish.county.codes/SCC/30.91B.200).
(4) Calculation of the average final [grade](https://snohomish.county.codes/SCC/30.91G.070) shall be made by drawing the smallest rectangle possible that encompasses the entire [building area](https://snohomish.county.codes/SCC/30.91B.210) as shown in SCC Figure [30\.23.050(1)](https://snohomish.county.codes/SCC/30.23.050\(5\)#Fig30.23.050\(1\) "Fig. 30.23.050(1) Calculating Average Final Grade and Determining Height") and averaging the elevations at the midpoint of each side of the rectangle. When a [structure](https://snohomish.county.codes/SCC/30.91S.660) that is to be fully partitioned with internal dividing walls separating individual [dwelling units](https://snohomish.county.codes/SCC/30.91D.530) from each other from ground to sky, the [applicant](https://snohomish.county.codes/SCC/30.91A.220) may request a modification of the measurement by evaluating maximum height based upon individual sections to respond to topography of the [site](https://snohomish.county.codes/SCC/30.91S.340) as follows:
(a) Drawing the smallest rectangle possible that encompasses the entire [building area](https://snohomish.county.codes/SCC/30.91B.210);
(b) Dividing one side of the rectangle, as chosen by the [applicant](https://snohomish.county.codes/SCC/30.91A.220), into sections equal to the internal dividing walls that fully separate individual [dwelling units](https://snohomish.county.codes/SCC/30.91D.530) from each other using lines that are perpendicular to the chosen side of the rectangle;
(c) The sections delineated in subsection [(4)(b)](https://snohomish.county.codes/SCC/30.23.050\(4\)\(b\) "30.23.050(4)(b)") of this section must extend vertically from ground to sky; and
(d) The maximum height for each section of the [structure](https://snohomish.county.codes/SCC/30.91S.660) is measured from the average final [grade](https://snohomish.county.codes/SCC/30.91G.070) for that section of the [structure](https://snohomish.county.codes/SCC/30.91S.660), which is calculated as the average elevation at the midpoints of each side of the rectangle for each section of the [structure](https://snohomish.county.codes/SCC/30.91S.660), as illustrated in SCC Figure [30\.23.050(2)](https://snohomish.county.codes/SCC/30.23.050\(5\)#Fig30.23.050\(2\) "Fig. 30.23.050(2) Calculating Average Final Grade and Determining Height for Portions of a Fully Partitioned Attached Single-Family Structure").
(5) [Fill](https://snohomish.county.codes/SCC/30.91F.210) shall not be used to raise the average final [grade](https://snohomish.county.codes/SCC/30.91G.070) more than five feet above the [existing grade](https://snohomish.county.codes/SCC/30.91G.070\(1\)) of any [dwelling](https://snohomish.county.codes/SCC/30.91D.490) located within 50 feet on adjoining properties, as illustrated in SCC Figure [30\.23.050(3)](https://snohomish.county.codes/SCC/30.23.050\(5\)#Fig30.23.050\(3\) "Fig. 30.23.050(3) Restrictions on Using Fill to Alter Average Final Grade"); provided, that the provisions of this subsection (5) shall not apply to residential development subject to chapters [30\.23A](https://snohomish.county.codes/SCC/30.23A "ch. 30.23A Urban Residential Design Standards") and [30\.41G](https://snohomish.county.codes/SCC/30.41G "ch. 30.41G Cottage Housing") SCC.
Figure 30.23.050(1). Calculating Average Final Grade and Determining Height
Figure 30.23.050(2). Calculating Average Final Grade and Determining Height for Portions of a Fully Partitioned Attached Single-Family Structure
Figure 30.23.050(3). Restrictions on Using Fill to Alter Average Final Grade
Figure 30.23.050(4). Finding the Midpoint of Different Roof Types
Figure 30.23.050(5). Calculating Building Height for Flat and Mansard Roofs
(6) The measurement of height under this section does not apply to [buildings](https://snohomish.county.codes/SCC/30.91B.200) regulated by the Snohomish County [Shoreline Management Program](https://snohomish.county.codes/SCC/30.91S.194), nor does it replace the definitions of height in the [construction codes](https://snohomish.county.codes/SCC/30.91C.265), which are specific to the provisions in those chapters.
(7) Rooftop heating, ventilation and air conditioning (HVAC) and similar systems, when located on commercial, industrial or multifamily [structures](https://snohomish.county.codes/SCC/30.91S.660). The system shall not exceed the maximum [building height](https://snohomish.county.codes/SCC/30.91B.240) of the underlying zone by more than 30 percent or 15 feet, whichever is less. Sight-obscuring screening shall be required unless otherwise approved by the [director](https://snohomish.county.codes/SCC/30.91D.280) of the [department](https://snohomish.county.codes/SCC/30.91D.110). (Added by Amended Ord. 02-064, Dec. 9, 2002, Eff date Feb. 1, 2003; Reenacted by Amended Ord. 08-101, Jan. 21, 2009, Eff date Apr. 21, 2009; Amended by Ord. 10-024, June 9, 2010, Eff date Sept. 30, 2010; Amended by Amended Ord. 10-072, Sept. 8, 2010, Eff date Oct. 3, 2010; Amended by Amended Ord. 12-025, June 6, 2012, Eff date July 27, 2012; Amended by Amended Ord. 12-049, Oct. 3, 2012, Eff date Jan. 1, 2013; Amended by Amended Ord. 15-025, May 6, 2015, Eff date May 24, 2015; Amended by Ord. 15-103, Jan. 11, 2016, Eff date Jan. 22, 2016; Amended by Ord. 17-062, Oct. 18, 2017, Eff date Dec. 17, 2017; Amended by Ord. 21-011, Apr. 7, 2021, Eff date Apr. 22, 2021; Amended by Amended Ord. 23-033, June 7, 2023, Eff date June 23, 2023).
###### 30\.23.055 Allowing a Complete Development Application to Opt-in to the Requirements of Ordinance No. 23-033.[Search Within This](https://snohomish.county.codes/SCC/30.23.055/search)
This section is included in your selections.
(Added by Amended Ord. 23-033, June 7, 2023, Eff date June 23, 2023; Repealed by Amended Ord. 23-033, June 7, 2023, Eff date Dec. 7, 2023).
###### 30\.23.060 Binding site plans (BSP).[Search Within This](https://snohomish.county.codes/SCC/30.23.060/search)
This section is included in your selections.
Land divided pursuant to a recorded [binding site plan](https://snohomish.county.codes/SCC/30.91B.120) shall be governed by the bulk regulations of the underlying zone. The entire land area subject to the BSP shall be treated as a single [lot](https://snohomish.county.codes/SCC/30.91L.120) when applying minimum [lot area](https://snohomish.county.codes/SCC/30.91L.130), minimum [lot width](https://snohomish.county.codes/SCC/30.91L.210), [setbacks](https://snohomish.county.codes/SCC/30.91S.160), maximum [lot coverage](https://snohomish.county.codes/SCC/30.91L.150), [off-street parking](https://snohomish.county.codes/SCC/30.91P.060), [sign](https://snohomish.county.codes/SCC/30.91S.310), and landscaping requirements. (Added by Amended Ord. 02-064, Dec. 9, 2002, Eff date Feb. 1, 2003).
###### 30\.23.100 Setbacks and corner lot sight clearance triangles.[Search Within This](https://snohomish.county.codes/SCC/30.23.100/search)
This section is included in your selections.
For safety purposes, all owners of [corner lots](https://snohomish.county.codes/SCC/30.91L.140) shall maintain a sight clearance triangle in accordance with SCC Figure [30\.23.100(1)](https://snohomish.county.codes/SCC/30.23.100#Fig30.23.100\(1\) "Fig. 30.23.100(1) Corner Lot Sight Clearance Triangle"). The sight clearance triangle is formed by measuring 15 feet along the two [front lot lines](https://snohomish.county.codes/SCC/30.91L.170) from their point of intersection (point A) and connecting the two endpoints (line B - C). Within the area comprising the triangle, no tree, [fence](https://snohomish.county.codes/SCC/30.91F.200), shrub, [sign](https://snohomish.county.codes/SCC/30.91S.310), or other physical obstruction higher than 42 inches above the established [road network element](https://snohomish.county.codes/SCC/30.91R.215) [grade](https://snohomish.county.codes/SCC/30.91G.070) shall be permitted.
Figure 30.23.100(1). Corner Lot Sight Clearance Triangle
(Added by Amended Ord. 02-064, Dec. 9, 2002, Eff date Feb. 1, 2003; Amended by Amended Ord. 08-101, Jan. 21, 2009, Eff date Apr. 21, 2009; Amended by Amended Ord. 12-049, Oct. 3, 2012, Eff date Jan. 1, 2013).
###### 30\.23.110 Special setbacks for certain uses.[Search Within This](https://snohomish.county.codes/SCC/30.23.110/search)
This section is included in your selections.
This section supplements the normal [setbacks](https://snohomish.county.codes/SCC/30.91S.160) required by the underlying zone for the specified use.
(1) Agriculture. All [structures](https://snohomish.county.codes/SCC/30.91S.660) used for housing or feeding animals, not including household pets, shall be located at least 30 feet from all property lines.
(2) Amusement Facilities. Theaters must be at least 300 feet from the property line of any [preschool](https://snohomish.county.codes/SCC/30.91P.270) or K-12 [school. Other](https://snohomish.county.codes/SCC/30.91S.060) [amusement facilities](https://snohomish.county.codes/SCC/30.91A.160) must be at least 500 feet from the property line of any park, playground, [preschool](https://snohomish.county.codes/SCC/30.91P.270), or K-12 school. Distances shall be measured horizontally by following a straight line from the nearest point in the [building](https://snohomish.county.codes/SCC/30.91B.200) in which the [amusement facility](https://snohomish.county.codes/SCC/30.91A.160) will be located, to the nearest property line of a parcel which contains a park, playground, [preschool](https://snohomish.county.codes/SCC/30.91P.270), or K-12 school.
(3) Art Gallery. All [buildings](https://snohomish.county.codes/SCC/30.91B.200) must be at least 20 feet from any other [lot](https://snohomish.county.codes/SCC/30.91L.120) in a residential zone.
(4) Cemetery, Mausoleum, and Crematoriums. All [buildings](https://snohomish.county.codes/SCC/30.91B.200) must be at least 50 feet from external boundaries of the property.
(5) Church. All [buildings](https://snohomish.county.codes/SCC/30.91B.200) must be at least 25 feet from any other [lot](https://snohomish.county.codes/SCC/30.91L.120) in a residential zone.
(6) Dock and Boathouse. Covered [structures](https://snohomish.county.codes/SCC/30.91S.660) must be at least three feet from any [side lot line](https://snohomish.county.codes/SCC/30.91L.190) or extension thereof. No [setback](https://snohomish.county.codes/SCC/30.91S.160) from adjacent properties is required for any uncovered [structure](https://snohomish.county.codes/SCC/30.91S.660), and no [setback](https://snohomish.county.codes/SCC/30.91S.160) from the water is required for any [structure](https://snohomish.county.codes/SCC/30.91S.660) permitted hereunder, except that [setbacks](https://snohomish.county.codes/SCC/30.91S.160) for [docks](https://snohomish.county.codes/SCC/30.91D.310) and [boathouses](https://snohomish.county.codes/SCC/30.91B.160) located in [shoreline jurisdiction](https://snohomish.county.codes/SCC/30.91S.193) are regulated under SCC [30\.67.517](https://snohomish.county.codes/SCC/30.67.517 "30.67.517 Boat mooring facilities – docks, piers, floats, boathouses and mooring buoys").
(7) Educational Institutions.
(a) All [buildings](https://snohomish.county.codes/SCC/30.91B.200) shall be set back at least 35 feet from all external property lines; and
(b) All [buildings](https://snohomish.county.codes/SCC/30.91B.200) shall be set back from all [road network elements](https://snohomish.county.codes/SCC/30.91R.215), except a [driveway](https://snohomish.county.codes/SCC/30.91D.460). The [setback](https://snohomish.county.codes/SCC/30.91S.160) shall be the greater of either 75 feet from the centerline of a [road network element](https://snohomish.county.codes/SCC/30.91R.215), or 45 feet from the edge of a [road network element](https://snohomish.county.codes/SCC/30.91R.215).
(8) Equestrian Center and Mini-Equestrian Center. Open or covered arenas must be at least 50 feet from any external property line. New [structures](https://snohomish.county.codes/SCC/30.91S.660) located on or adjacent to lands subject to chapter [30\.32A](https://snohomish.county.codes/SCC/30.32A "ch. 30.32A Forest Lands") SCC shall comply with all applicable [setbacks](https://snohomish.county.codes/SCC/30.91S.160).
(9) Governmental Structure or Facility. All [structures](https://snohomish.county.codes/SCC/30.91S.660) must be at least 20 feet from any other [lot](https://snohomish.county.codes/SCC/30.91L.120) in a residential zone.
(10) Health and Social Service Facility, Level II. All [buildings](https://snohomish.county.codes/SCC/30.91B.200) must be at least 30 feet from all external property boundaries.
(11) Kennel, Commercial; Kennel, Private-Breeding; or Kennel, Private-Non-Breeding. All [animal runs](https://snohomish.county.codes/SCC/30.91A.180), and all [buildings](https://snohomish.county.codes/SCC/30.91B.200) and [structures](https://snohomish.county.codes/SCC/30.91S.660) devoted primarily to housing animals, must be at least 30 feet from all external property lines.
(12) Library. All [buildings](https://snohomish.county.codes/SCC/30.91B.200) must be at least 20 feet from any other [lot](https://snohomish.county.codes/SCC/30.91L.120) in a residential zone.
(13) Museum. All [buildings](https://snohomish.county.codes/SCC/30.91B.200) must be at least 20 feet from any other [lot](https://snohomish.county.codes/SCC/30.91L.120) in a residential zone.
(14) Office, Licensed Practitioners. All [buildings](https://snohomish.county.codes/SCC/30.91B.200) must be at least 20 feet from any other [lot](https://snohomish.county.codes/SCC/30.91L.120) in a residential zone.
(15) Race Track. The track must be at least 50 feet from all external property lines.
(16) Rural Industry. All [buildings](https://snohomish.county.codes/SCC/30.91B.200) and [structures](https://snohomish.county.codes/SCC/30.91S.660), storage areas, or other activities (except sales stands) occurring outside of a residential [structure](https://snohomish.county.codes/SCC/30.91S.660) must be at least 20 feet from any property line.
(17) School, Preschool and K-12.
(a) All [buildings](https://snohomish.county.codes/SCC/30.91B.200) shall be set back at least 35 feet from all external property lines; and
(b) All [buildings](https://snohomish.county.codes/SCC/30.91B.200) shall be set back from all [road network elements](https://snohomish.county.codes/SCC/30.91R.215), except a [driveway](https://snohomish.county.codes/SCC/30.91D.460). The [setback](https://snohomish.county.codes/SCC/30.91S.160) shall be the greater of either 75 feet from the centerline of a [road network element](https://snohomish.county.codes/SCC/30.91R.215), or 45 feet from the edge of the [road network element](https://snohomish.county.codes/SCC/30.91R.215).
(18) Service Station Pump Island or Canopy. The following [setbacks](https://snohomish.county.codes/SCC/30.91S.160) shall be applied from all [road network elements](https://snohomish.county.codes/SCC/30.91R.215), except for a [driveway](https://snohomish.county.codes/SCC/30.91D.460):
(a) The [setback](https://snohomish.county.codes/SCC/30.91S.160) for a pump island, where the width of the [road network element](https://snohomish.county.codes/SCC/30.91R.215) is less than 60 feet, shall be 45 feet from the centerline of the [road network element](https://snohomish.county.codes/SCC/30.91R.215).
(b) The [setback](https://snohomish.county.codes/SCC/30.91S.160) for a pump island, where the [road network element](https://snohomish.county.codes/SCC/30.91R.215) is 60 feet or wider, shall be one-half the width of the [road network element](https://snohomish.county.codes/SCC/30.91R.215) plus 15 feet.
(c) The [setback](https://snohomish.county.codes/SCC/30.91S.160) for a canopy, where the [road network element](https://snohomish.county.codes/SCC/30.91R.215) is less than 60 feet, shall be 35 feet from the centerline of the [road network element](https://snohomish.county.codes/SCC/30.91R.215).
(d) The [setback](https://snohomish.county.codes/SCC/30.91S.160) for a canopy, where the [road network element](https://snohomish.county.codes/SCC/30.91R.215) is 60 feet or wider, shall be one-half the width of the [road network element](https://snohomish.county.codes/SCC/30.91R.215) plus five feet.
(19) Small Animal Husbandry. All [structures](https://snohomish.county.codes/SCC/30.91S.660) used for housing or feeding animals must be at least 30 feet from all property lines.
(20) Detached accessory or [non-accessory storage structures](https://snohomish.county.codes/SCC/30.91S.595) and private garages with [building](https://snohomish.county.codes/SCC/30.91B.200) footprints over 2,400 square feet must be at least 15 feet from any external property line; provided, that parcels abutting open space tracts shall have a five-foot [setback](https://snohomish.county.codes/SCC/30.91S.160) from the open space. Storage [structures](https://snohomish.county.codes/SCC/30.91S.660) and private garages over 4,000 square feet in size must be set back at least 20 feet from any external property line; provided, that parcels abutting open space tracts shall have a five-foot [setback](https://snohomish.county.codes/SCC/30.91S.160) from the open space.
(21) RESERVED for future use.
(22) Studio. All [buildings](https://snohomish.county.codes/SCC/30.91B.200) must be at least 20 feet from any other [lot](https://snohomish.county.codes/SCC/30.91L.120) in a residential, multiple-[family](https://snohomish.county.codes/SCC/30.91F.080), or rural zone. The [hearing examiner](https://snohomish.county.codes/SCC/30.91H.100) may require an additional [setback](https://snohomish.county.codes/SCC/30.91S.160) distance when necessary to maintain compatibility of the proposed [building](https://snohomish.county.codes/SCC/30.91B.200) with residential uses on adjoining properties.
(23) Swimming or Wading Pool. The pool must be at least five feet from any property line.
(24) Tavern. The use must be at least 500 feet from the external property lines of all public school grounds and [public parks](https://snohomish.county.codes/SCC/30.91P.100) or playgrounds.
(25) Utility Structures. All [structures](https://snohomish.county.codes/SCC/30.91S.660) must be at least 20 feet from any other [lot](https://snohomish.county.codes/SCC/30.91L.120) in a residential zone.
(26) Personal Wireless Service Facilities.
(a) The [setbacks](https://snohomish.county.codes/SCC/30.91S.160) of a [tower](https://snohomish.county.codes/SCC/30.91T.058) used for a [personal wireless service facility](https://snohomish.county.codes/SCC/30.91P.186) shall be measured from the base of the [structure](https://snohomish.county.codes/SCC/30.91S.660) to the property line of the parcel on which it is located. Where guy wire supports are used, [setbacks](https://snohomish.county.codes/SCC/30.91S.160) shall be measured from the base of the guy wire anchored to the ground, rather than the base of the [structure](https://snohomish.county.codes/SCC/30.91S.660), except as provided for in SCC [30\.23.110(26)(b)](https://snohomish.county.codes/SCC/30.23.110\(26\)\(b\) "30.23.110(26)(b)").
(b) In zones categorized as Rural or Resource under SCC [30\.21.020](https://snohomish.county.codes/SCC/30.21.020 "30.21.020 Establishment of zones"), any [public road](https://snohomish.county.codes/SCC/30.91R.220) [right-of-way](https://snohomish.county.codes/SCC/30.91R.200) may be included in the [setback](https://snohomish.county.codes/SCC/30.91S.160) calculation. In all other zones categorized under SCC [30\.21.020](https://snohomish.county.codes/SCC/30.21.020 "30.21.020 Establishment of zones"), [public road](https://snohomish.county.codes/SCC/30.91R.220) [right-of-way](https://snohomish.county.codes/SCC/30.91R.200) shall not be included in the [setback](https://snohomish.county.codes/SCC/30.91S.160) calculation.
(c) A [tower](https://snohomish.county.codes/SCC/30.91T.058) shall be set back from a property line with a minimum of 50 feet, except as provided for in subsections [(26)(d)](https://snohomish.county.codes/SCC/30.23.110\(26\)\(d\) "30.23.110(26)(d)") through [(26)(f)](https://snohomish.county.codes/SCC/30.23.110\(26\)\(f\) "30.23.110(26)(f)") of this section. For the purposes of this subsection, a [personal wireless service facility](https://snohomish.county.codes/SCC/30.91P.186)’s lease area boundaries shall not be considered property lines.
(d) [Setbacks](https://snohomish.county.codes/SCC/30.91S.160) may be modified by the [approving authority](https://snohomish.county.codes/SCC/30.91A.242) to no less than 20 feet from a property line only if there is significant existing vegetation, topography, or some other land feature that will provide a higher level of screening of the facility. In accordance with SCC [30\.25.025(2)](https://snohomish.county.codes/SCC/30.25.025\(2\) "30.25.025(2)"), a [Native Vegetation Retention Area](https://snohomish.county.codes/SCC/30.91N.013) ([NVRA](https://snohomish.county.codes/SCC/30.91N.013)) shall be established and maintained when this provision is used.
(e) [Personal wireless service facilities](https://snohomish.county.codes/SCC/30.91P.186) located on [utility](https://snohomish.county.codes/SCC/30.91U.110) [structures](https://snohomish.county.codes/SCC/30.91S.660), streetlight poles, traffic signal poles, or existing [structures](https://snohomish.county.codes/SCC/30.91S.660) shall not be subject to the [personal wireless service facility](https://snohomish.county.codes/SCC/30.91P.186) special [setback](https://snohomish.county.codes/SCC/30.91S.160) requirements of subsections [(26)(a)](https://snohomish.county.codes/SCC/30.23.110\(26\)\(a\) "30.23.110(26)(a)") through [(26)(c)](https://snohomish.county.codes/SCC/30.23.110\(26\)\(c\) "30.23.110(26)(c)") of this section.
(f) [Towers](https://snohomish.county.codes/SCC/30.91T.058) and [auxiliary support equipment](https://snohomish.county.codes/SCC/30.91A.346) located on parcels adjacent to [forest lands](https://snohomish.county.codes/SCC/30.91F.460) or lands designated local forest shall be set back in accordance with SCC [30\.32A.110](https://snohomish.county.codes/SCC/30.32A.110 "30.32A.110 Siting of new structures: local forest land or adjacent to forest land").
(g) To minimize the potential for birds to collide into antennas and [towers](https://snohomish.county.codes/SCC/30.91T.058), [personal wireless service facilities](https://snohomish.county.codes/SCC/30.91P.186) shall not be located within the recommended construction buffer zone for birds listed as priority species by the Washington [Department](https://snohomish.county.codes/SCC/30.91D.110) of Fish and Wildlife as described in its Management Recommendations for Washington’s Priority Species Volume IV: Birds (revised March 2012), or listed as endangered or [threatened species](https://snohomish.county.codes/SCC/30.91T.054) under the federal [Endangered Species](https://snohomish.county.codes/SCC/30.91T.054) Act ([50](https://snohomish.county.codes/US/CFR/50) CFR Part [17](https://snohomish.county.codes/US/CFR/50/17)), and as amended, unless the [applicant](https://snohomish.county.codes/SCC/30.91A.220) demonstrates that the proposed location will not have a significant impact on such birds.
(h) In no case shall a [tower](https://snohomish.county.codes/SCC/30.91T.058) be constructed so that its base is closer to an existing [dwelling](https://snohomish.county.codes/SCC/30.91D.490) than a distance equal to the height of the [tower](https://snohomish.county.codes/SCC/30.91T.058), unless the owner of such [dwelling](https://snohomish.county.codes/SCC/30.91D.490) consents in writing that a closer distance is permitted.
(27) Excavation and Processing of Minerals.
(a) Minimum [setbacks](https://snohomish.county.codes/SCC/30.91S.160), as measured from the nearest edge of active mining or processing, shall be established as follows:
(i) Distance from property line: 50 feet;
(ii) Distance from any [public road](https://snohomish.county.codes/SCC/30.91R.220) or [right-of-way](https://snohomish.county.codes/SCC/30.91R.200): 50 feet;
(iii) Distance from residences: 100 feet; provided, that the residence is located on a [site](https://snohomish.county.codes/SCC/30.91S.340)(s) designated and zoned for residential use;
(iv) Distance from parks, schools, [hospitals](https://snohomish.county.codes/SCC/30.91H.160) and/or [libraries](https://snohomish.county.codes/SCC/30.91L.075) in existence at the time of [permit](https://snohomish.county.codes/SCC/30.91P.140) application: one-fourth mile (1,320 feet);
(v) Distance from [UGA boundary](https://snohomish.county.codes/SCC/30.91U.091): one-fourth mile (1,320 feet).
(b) No mining, processing or permanent [buildings](https://snohomish.county.codes/SCC/30.91B.200) shall be located within the [setback](https://snohomish.county.codes/SCC/30.91S.160).
(c) [Structures](https://snohomish.county.codes/SCC/30.91S.660) or [buildings](https://snohomish.county.codes/SCC/30.91B.200) associated with [mineral operations](https://snohomish.county.codes/SCC/30.91M.095) shall be located at least 100 feet from a developed residential property line.
(28) Marijuana production and marijuana processing. The minimum [setback](https://snohomish.county.codes/SCC/30.91S.160) for outdoor [marijuana production](https://snohomish.county.codes/SCC/30.91M.040) or [marijuana processing](https://snohomish.county.codes/SCC/30.91M.038) facilities shall be at least 50 feet from any property line. The minimum [setback](https://snohomish.county.codes/SCC/30.91S.160) for indoor [marijuana production](https://snohomish.county.codes/SCC/30.91M.040) or [marijuana processing](https://snohomish.county.codes/SCC/30.91M.038) facilities shall be at least 30 feet from any property line. (Added by Amended Ord. 02-064, Dec. 9, 2002, Eff date Feb. 1, 2003; Amended by Amended Ord. 04-010, Mar. 3, 2004, Eff date Mar. 15, 2004; Amended by Amended Ord. 05-038, Nov. 30, 2005, Eff date Dec. 16, 2005; Amended by Amended Ord. 05-083, Dec. 21, 2005, Eff date Feb. 1, 2006; Amended by Amended Ord. 05-089, Dec. 21, 2005, Eff date Feb. 1, 2006; Amended by Amended Emerg. Ord. 06-011, Feb. 15, 2006, Eff date Feb. 15, 2006; Amended by Amended Ord. 06-057, Aug. 2, 2006, Eff date Aug. 14, 2006; Amended by Amended Ord. 10-026, June 9, 2010, Eff date Sept. 30, 2010; Amended by Amended Ord. 12-025, June 6, 2012, Eff date July 27, 2012; Amended by Amended Ord. 12-049, Oct. 3, 2012, Eff date Jan. 1, 2013; Amended by Amended Ord. 13-086, Nov. 13, 2013, Eff date Nov. 28, 2013; Amended by Ord. 14-053, Aug. 27, 2014, Eff date Sept. 13, 2014; Amended by Ord. 15-005, Mar. 18, 2015, Eff date Apr. 2, 2015; Amended by Ord. 15-103, Jan. 11, 2016, Eff date Jan. 22, 2016; Amended by Amended Ord. 16-029, May 11, 2016, Eff date May 23, 2016; Amended by Ord. 18-011, Mar. 21, 2018, Eff date May 20, 2018; Amended by Amended Ord. 19-020, July 3, 2019, Eff date Oct. 14, 2019).
###### 30\.23.115 Setback exceptions for minor architectural features.[Search Within This](https://snohomish.county.codes/SCC/30.23.115/search)
This section is included in your selections.
(1) Minor architectural features, including cornices, eaves, sills, fireplaces, chimneys and flues, open beams, bay windows, [greenhouse](https://snohomish.county.codes/SCC/30.91G.080) windows, trellises, ornamental elements, and other similar features of a minor nature may extend or project into a required [setback](https://snohomish.county.codes/SCC/30.91S.160) a distance of not more than 30 percent of the required [setback](https://snohomish.county.codes/SCC/30.91S.160) if the following conditions are met:
(a) Except for eaves, cornices, and sills, the combined length of all such features along any one [building](https://snohomish.county.codes/SCC/30.91B.200) wall shall not exceed 20 percent of the length of that [building](https://snohomish.county.codes/SCC/30.91B.200) wall; and
(b) Minor architectural features may not be used to extend [building](https://snohomish.county.codes/SCC/30.91B.200) floor area into the required [setback](https://snohomish.county.codes/SCC/30.91S.160). Only fireplace chimneys and flues may extend to finished [grade](https://snohomish.county.codes/SCC/30.91G.070).
(2) Uncovered [porches](https://snohomish.county.codes/SCC/30.91P.255), steps, and decks may project into a required [setback](https://snohomish.county.codes/SCC/30.91S.160), if they are no more than four feet above the finished ground level, at least 30 inches from any [lot](https://snohomish.county.codes/SCC/30.91L.120) line, and project no more than six feet into a [setback](https://snohomish.county.codes/SCC/30.91S.160) required from a [street](https://snohomish.county.codes/SCC/30.91S.650). (Added by Amended Ord. 02-064, Dec. 9, 2002, Eff date Feb. 1, 2003).
###### 30\.23.120 Front setback exceptions for new structures from existing road network elements.[Search Within This](https://snohomish.county.codes/SCC/30.23.120/search)
This section is included in your selections.
Front [setback](https://snohomish.county.codes/SCC/30.91S.160) exceptions for new [structures](https://snohomish.county.codes/SCC/30.91S.660) from existing [road network elements](https://snohomish.county.codes/SCC/30.91R.215) listed in SCC Tables [30\.23.041](https://snohomish.county.codes/SCC/30.23.041#Tab30.23.041 "Table 30.23.041 Setbacks from Road Network Elements in Urban Zones") through [30\.23.047](https://snohomish.county.codes/SCC/30.23.047#Tab30.23.047 "Table 30.23.047 Setbacks from Road Network Elements in Other Zones") shall be as follows:
(1) The minimum front [setback](https://snohomish.county.codes/SCC/30.91S.160) from a [road network element](https://snohomish.county.codes/SCC/30.91R.215) may be averaged when at least 50 percent of the [lots](https://snohomish.county.codes/SCC/30.91L.120) on the same side of the [road network element](https://snohomish.county.codes/SCC/30.91R.215), and within 165 feet of either side of the subject [lot](https://snohomish.county.codes/SCC/30.91L.120), are improved with permitted [buildings](https://snohomish.county.codes/SCC/30.91B.200). The front [setback](https://snohomish.county.codes/SCC/30.91S.160) shall be determined by averaging the front [setback](https://snohomish.county.codes/SCC/30.91S.160) of those [structures](https://snohomish.county.codes/SCC/30.91S.660) on those [lots](https://snohomish.county.codes/SCC/30.91L.120) whose [setback](https://snohomish.county.codes/SCC/30.91S.160) is equal to or less than the [setback](https://snohomish.county.codes/SCC/30.91S.160) required in the underlying zone; provided, that the [setback](https://snohomish.county.codes/SCC/30.91S.160) for a vacant [lot](https://snohomish.county.codes/SCC/30.91L.120) is that required in the bulk matrices for the underlying zone.
(2) The minimum front [setback](https://snohomish.county.codes/SCC/30.91S.160) may be reduced one foot for each percent of natural [slope](https://snohomish.county.codes/SCC/30.91S.380) in excess of 35 percent, as measured from the midpoint of the [front lot line](https://snohomish.county.codes/SCC/30.91L.170) from which the reduction is sought, for a distance of 60 feet into the [lot](https://snohomish.county.codes/SCC/30.91L.120).
(3) The [setback](https://snohomish.county.codes/SCC/30.91S.160) from a temporary [turnaround](https://snohomish.county.codes/SCC/30.91T.130) [easement](https://snohomish.county.codes/SCC/30.91E.030) shall be the greater of either:
(a) Five feet from the [easement](https://snohomish.county.codes/SCC/30.91E.030) line; or
(b) The [setback](https://snohomish.county.codes/SCC/30.91S.160) from the [right-of-way](https://snohomish.county.codes/SCC/30.91R.200) line for the zoning classification.
(4) New [structures](https://snohomish.county.codes/SCC/30.91S.660) shall have a minimum five-foot [setback](https://snohomish.county.codes/SCC/30.91S.160) from:
(a) The edge of a [private road](https://snohomish.county.codes/SCC/30.91R.230) network element when the [lot](https://snohomish.county.codes/SCC/30.91L.120) does not have an [easement](https://snohomish.county.codes/SCC/30.91E.030) to utilize the [private road](https://snohomish.county.codes/SCC/30.91R.230) network element; or
(b) The edge of a [restricted access right-of-way](https://snohomish.county.codes/SCC/30.91R.125).
(5) The [setback](https://snohomish.county.codes/SCC/30.91S.160) from a tract or [easement](https://snohomish.county.codes/SCC/30.91E.030) for a [shared driveway](https://snohomish.county.codes/SCC/30.91D.465) or a [private road](https://snohomish.county.codes/SCC/30.91R.230) capable of serving only one or two [lots](https://snohomish.county.codes/SCC/30.91L.120) shall be considered a side or rear [setback](https://snohomish.county.codes/SCC/30.91S.160) if the [lot](https://snohomish.county.codes/SCC/30.91L.120) also fronts on a public [right-of-way](https://snohomish.county.codes/SCC/30.91R.200).
(6) Where one of the roads creating a corner or [through lot](https://snohomish.county.codes/SCC/30.91L.200) is a [restricted access right-of-way](https://snohomish.county.codes/SCC/30.91R.125), side or rear yard [setbacks](https://snohomish.county.codes/SCC/30.91S.160) shall apply along the [restricted access right-of-way](https://snohomish.county.codes/SCC/30.91R.125). (Added by Amended Ord. 02-064, Dec. 9, 2002, Eff date Feb. 1, 2003; Amended by Amended Ord. 12-049, Oct. 3, 2012, Eff date Jan. 1, 2013).
###### 30\.23.125 Setback exceptions from alleys, auto and shared courts, and shared driveways.[Search Within This](https://snohomish.county.codes/SCC/30.23.125/search)
This section is included in your selections.
(Added by Amended Ord. 02-064, Dec. 9, 2002, Eff date Feb. 1, 2003; Amended by Amended Ord. 04-003, Mar. 31, 2004, Eff date May 17, 2004; Amended by Amended Ord. 07-022, Apr. 23, 2007, Eff date June 4, 2007; Repealed by Amended Ord. 12-049, Oct. 3, 2012, Eff date Jan. 1, 2013).
###### 30\.23.130 Setback for new private road network elements from existing structures.[Search Within This](https://snohomish.county.codes/SCC/30.23.130/search)
This section is included in your selections.
(1) A proposed [private road](https://snohomish.county.codes/SCC/30.91R.230) network element that provides legal access to a [lot](https://snohomish.county.codes/SCC/30.91L.120) shall not be located closer than 15 feet from any existing [structure](https://snohomish.county.codes/SCC/30.91S.660) on the [lot](https://snohomish.county.codes/SCC/30.91L.120).
(2) A proposed [private road](https://snohomish.county.codes/SCC/30.91R.230) network element that does not provide legal access to a [lot](https://snohomish.county.codes/SCC/30.91L.120) shall not be located closer than five feet from any existing [structure](https://snohomish.county.codes/SCC/30.91S.660) on the [lot](https://snohomish.county.codes/SCC/30.91L.120). (Added by Amended Ord. 12-049, Oct. 3, 2012, Eff date Jan. 1, 2013).
###### 30\.23.150 Setback exception for lots combined as a single building site.[Search Within This](https://snohomish.county.codes/SCC/30.23.150/search)
This section is included in your selections.
If two or more [lots](https://snohomish.county.codes/SCC/30.91L.120) are built upon as one unit, and are held under common ownership, the boundary line separating the two or more [lots](https://snohomish.county.codes/SCC/30.91L.120) may be covered by a [building](https://snohomish.county.codes/SCC/30.91B.200) or permitted group of [buildings](https://snohomish.county.codes/SCC/30.91B.200). Such [lots](https://snohomish.county.codes/SCC/30.91L.120) shall constitute a single [building](https://snohomish.county.codes/SCC/30.91B.200) [site](https://snohomish.county.codes/SCC/30.91S.340), and the [setbacks](https://snohomish.county.codes/SCC/30.91S.160) required by this chapter shall apply to the aggregate of the [lots](https://snohomish.county.codes/SCC/30.91L.120). (Added by Ord. 03-068, July 9, 2003, Eff date July 28, 2003).
###### 30\.23.200 Reductions to lot area.[Search Within This](https://snohomish.county.codes/SCC/30.23.200/search)
This section is included in your selections.
(1) No minimum [lot area](https://snohomish.county.codes/SCC/30.91L.130) shall be so reduced or diminished that the [setbacks](https://snohomish.county.codes/SCC/30.91S.160) or other open spaces shall be smaller than prescribed by this title, nor shall the density of population be increased in any manner except in conformity with the regulations established by this title.
(2) No minimum [lot](https://snohomish.county.codes/SCC/30.91L.120) dimension shall be required for the development of governmental [structures](https://snohomish.county.codes/SCC/30.91S.660) and facilities, [utility](https://snohomish.county.codes/SCC/30.91U.110) [structures](https://snohomish.county.codes/SCC/30.91S.660) and facilities, or [personal wireless service facilities](https://snohomish.county.codes/SCC/30.91P.186). (Added by Amended Ord. 02-064, Dec. 9, 2002, Eff date Feb. 1, 2003; Amended by Amended Ord. 11-058, Jan. 25, 2012, Eff date Feb. 16, 2012; Amended by Ord. 18-011, Mar. 21, 2018, Eff date May 20, 2018).
###### 30\.23.210 Lot size averaging – Urban zones.[Search Within This](https://snohomish.county.codes/SCC/30.23.210/search)
This section is included in your selections.
In R-9,600, R-8,400, R-7,200, and LDMR zones, a [subdivision](https://snohomish.county.codes/SCC/30.91S.710) or [short subdivision](https://snohomish.county.codes/SCC/30.91S.280) may meet the minimum [lot area](https://snohomish.county.codes/SCC/30.91L.130) requirement by calculating average [lot](https://snohomish.county.codes/SCC/30.91L.120) size under this section.
(1) Divide the [site](https://snohomish.county.codes/SCC/30.91S.340) area in square feet by the total number of [lots](https://snohomish.county.codes/SCC/30.91L.120) containing new [dwelling units](https://snohomish.county.codes/SCC/30.91D.530) ([lots](https://snohomish.county.codes/SCC/30.91L.120) for [existing dwelling units](https://snohomish.county.codes/SCC/30.91D.535) as defined in SCC [30\.91D.535](https://snohomish.county.codes/SCC/30.91D.535 "30.91D.535 Dwelling unit, existing") are exempt).
(2) If the average [lot](https://snohomish.county.codes/SCC/30.91L.120) size as computed under subsection [(1)](https://snohomish.county.codes/SCC/30.23.210\(1\) "30.23.210(1)") of this section equals or exceeds the minimum [lot area](https://snohomish.county.codes/SCC/30.91L.130) requirement of the zone in which the property is located, then the minimum [lot area](https://snohomish.county.codes/SCC/30.91L.130) requirement will be satisfied for the purposes of [lot](https://snohomish.county.codes/SCC/30.91L.120) size averaging.
(3) In no case shall the provisions under SCC [30\.23.230(3)](https://snohomish.county.codes/SCC/30.23.230\(3\) "30.23.230(3)") apply to this section.
(4) The following additional criteria apply:
(a) Each single [lot](https://snohomish.county.codes/SCC/30.91L.120) shall be at least 3,000 square feet in area;
(b) [Lots](https://snohomish.county.codes/SCC/30.91L.120) in [subdivisions](https://snohomish.county.codes/SCC/30.91S.710) and [short subdivisions](https://snohomish.county.codes/SCC/30.91S.280) created under the provisions of this section shall have a maximum [lot coverage](https://snohomish.county.codes/SCC/30.91L.150) of 55 percent;
(c) [Lots](https://snohomish.county.codes/SCC/30.91L.120) with less than the prescribed minimum [lot area](https://snohomish.county.codes/SCC/30.91L.130) requirement for the zone in which they are located shall have:
(i) A minimum [lot width](https://snohomish.county.codes/SCC/30.91L.210) of at least 34 feet; and
(ii) [Setbacks](https://snohomish.county.codes/SCC/30.91S.160) of 15 feet from [right-of-way](https://snohomish.county.codes/SCC/30.91R.200) and [private roads](https://snohomish.county.codes/SCC/30.91R.230), except that garages must be set back 18 feet from [right-of-way](https://snohomish.county.codes/SCC/30.91R.200) (with the exception of [alleys](https://snohomish.county.codes/SCC/30.91A.150)) or [private roads](https://snohomish.county.codes/SCC/30.91R.230) and [corner lots](https://snohomish.county.codes/SCC/30.91L.140) may reduce one [right-of-way](https://snohomish.county.codes/SCC/30.91R.200) [setback](https://snohomish.county.codes/SCC/30.91S.160) to no less than 10 feet; and
(d) [Preliminary subdivisions](https://snohomish.county.codes/SCC/30.91S.730) approved using [lot](https://snohomish.county.codes/SCC/30.91L.120) size averaging shall not be recorded by divisions unless such divisions individually or together as cumulative, contiguous parcels satisfy the requirements of this section. (Added by Amended Ord. 02-064, Dec. 9, 2002, Eff date Feb. 1, 2003; Amended by Amended Ord. 03-075, Sept. 24, 2003, Eff date Oct. 6, 2003; Amended by Amended Ord. 04-081, Sept. 1, 2004, Eff date Sept. 24, 2004; Amended by Amended Ord. 06-061, Aug. 1, 2007, Eff date Oct. 1, 2007; Amended by Amended Ord. 08-101, Jan. 21, 2009, Eff date Apr. 21, 2009; Amended by Amended Ord. 13-042, July 10, 2013, Eff date July 22, 2013; Amended by Amended Ord. 14-073, Oct. 8, 2014, Eff date Oct. 27, 2014; Amended by Ord. 15-065, Oct. 14, 2015, Eff date Oct. 30, 2015; Amended by Amended Ord. 20-005, Mar. 11, 2020, Eff date Mar. 28, 2020; Amended by Amended Ord. 22-016, May 4, 2022, Eff date May 19, 2022; Amended by Amended Ord. 22-062, Oct. 26, 2022, Eff date Jan. 1, 2023; Amended by Ord. 24-058, Aug. 14, 2024, Eff date Aug. 26, 2024).
###### 30\.23.215 Lot size averaging – F\&R, R-5, and RD zoning.[Search Within This](https://snohomish.county.codes/SCC/30.23.215/search)
This section is included in your selections.
In F\&R, R-5, and RD zones, a [short subdivision](https://snohomish.county.codes/SCC/30.91S.280) may meet the minimum [lot area](https://snohomish.county.codes/SCC/30.91L.130) requirement by calculating average [lot](https://snohomish.county.codes/SCC/30.91L.120) size under this section.
(1) Divide the [site](https://snohomish.county.codes/SCC/30.91S.340) area in square feet by the total number of [lots](https://snohomish.county.codes/SCC/30.91L.120).
(2) If the average [lot](https://snohomish.county.codes/SCC/30.91L.120) size as computed under subsection [(1)](https://snohomish.county.codes/SCC/30.23.215\(1\) "30.23.215(1)") of this section equals or exceeds the minimum [lot area](https://snohomish.county.codes/SCC/30.91L.130) requirement of the zone in which the property is located, then the minimum [lot area](https://snohomish.county.codes/SCC/30.91L.130) requirement will be satisfied for the purposes of [lot](https://snohomish.county.codes/SCC/30.91L.120) size averaging.
(3) In no case shall the provisions under SCC [30\.23.230(3)](https://snohomish.county.codes/SCC/30.23.230\(3\) "30.23.230(3)") apply to this section.
(4) The following additional criteria apply:
(a) Each single [lot](https://snohomish.county.codes/SCC/30.91L.120) shall be at least 12,500 square feet in area or the minimum area necessary to comply with the county health [department](https://snohomish.county.codes/SCC/30.91D.110) rules and regulations for on-[site](https://snohomish.county.codes/SCC/30.91S.340) sewage disposal and potable water supply, whichever is greater;
(b) [Lots](https://snohomish.county.codes/SCC/30.91L.120) with less than the prescribed minimum [lot area](https://snohomish.county.codes/SCC/30.91L.130) requirement for the zone in which they are located shall have:
(i) A minimum [lot width](https://snohomish.county.codes/SCC/30.91L.210) of at least 75 feet; and
(ii) [Setbacks](https://snohomish.county.codes/SCC/30.91S.160) of 50 feet from [right-of-way](https://snohomish.county.codes/SCC/30.91R.200) and [private roads](https://snohomish.county.codes/SCC/30.91R.230), except that [corner lots](https://snohomish.county.codes/SCC/30.91L.140) may reduce one [right-of-way](https://snohomish.county.codes/SCC/30.91R.200) or [private road](https://snohomish.county.codes/SCC/30.91R.230) [setback](https://snohomish.county.codes/SCC/30.91S.160) to no less than 20 feet. (Added by Ord. 24-058, Aug. 14, 2024, Eff date Aug. 26, 2024).
###### 30\.23.220 Minimum lot area for rural clusters in RUTAs.[Search Within This](https://snohomish.county.codes/SCC/30.23.220/search)
This section is included in your selections.
(1) A [rural cluster subdivision](https://snohomish.county.codes/SCC/30.91R.270) or [short subdivision](https://snohomish.county.codes/SCC/30.91S.280) in a RUTA will meet the minimum [lot area](https://snohomish.county.codes/SCC/30.91L.130) of the zone in which it is located if the average [lot](https://snohomish.county.codes/SCC/30.91L.120) size of all [lots](https://snohomish.county.codes/SCC/30.91L.120) is at least 7,200 square feet and each [lot](https://snohomish.county.codes/SCC/30.91L.120) contains sufficient area to comply with the county health department rules and regulations for on-[site](https://snohomish.county.codes/SCC/30.91S.340) sewage disposal.
(2) [Lots](https://snohomish.county.codes/SCC/30.91L.120) with less than the prescribed minimum [lot area](https://snohomish.county.codes/SCC/30.91L.130) for the zone in which they are located shall conform to the minimum [lot width](https://snohomish.county.codes/SCC/30.91L.210), [setbacks](https://snohomish.county.codes/SCC/30.91S.160), and other bulk regulations of this chapter for [lots](https://snohomish.county.codes/SCC/30.91L.120) located in the R-7,200 zone. (Added by Amended Ord. 02-064, Dec. 9, 2002, Eff date Feb. 1, 2003; Amended by Amended Ord. 08-087, Feb. 4, 2009, Eff date Apr. 5, 2009; Amended by Amended Ord. 22-062, Oct. 26, 2022, Eff date Jan. 1, 2023).
###### 30\.23.230 Lot area when land is taken for public use.[Search Within This](https://snohomish.county.codes/SCC/30.23.230/search)
This section is included in your selections.
(1) If a portion of a legally existing [lot](https://snohomish.county.codes/SCC/30.91L.120) or parcel of land in any zone is acquired for public use in any manner, including condemnation or purchase, the remainder of the [lot](https://snohomish.county.codes/SCC/30.91L.120) or parcel shall be considered having the required minimum [lot area](https://snohomish.county.codes/SCC/30.91L.130). However:
(a) The portion of the [lot](https://snohomish.county.codes/SCC/30.91L.120) or parcel remaining after the acquisition for public use has an area of at least one-half of that required for the minimum [lot area](https://snohomish.county.codes/SCC/30.91L.130) in the zone in which the [lot](https://snohomish.county.codes/SCC/30.91L.120) or parcel is located except that, in a zone requiring a minimum [lot area](https://snohomish.county.codes/SCC/30.91L.130) of one-half acre or more, a minimum [lot area](https://snohomish.county.codes/SCC/30.91L.130) of at least 6,000 square feet shall be required; and
(b) After all applicable [setback](https://snohomish.county.codes/SCC/30.91S.160) requirements are met, the remainder of the [lot](https://snohomish.county.codes/SCC/30.91L.120) or parcel contains a rectangular space at least 30 feet by 40 feet in size which is usable for a main [building](https://snohomish.county.codes/SCC/30.91B.200).
(2) The [setback](https://snohomish.county.codes/SCC/30.91S.160) requirements of this title shall not apply to existing legal [structures](https://snohomish.county.codes/SCC/30.91S.660) located on legally-created [lots](https://snohomish.county.codes/SCC/30.91L.120) or parcels where the [setbacks](https://snohomish.county.codes/SCC/30.91S.160) for such [structures](https://snohomish.county.codes/SCC/30.91S.660) have been reduced by governmental acquisition of a portion of the [lots](https://snohomish.county.codes/SCC/30.91L.120) or parcels and such acquisition complies with the standards promulgated for decent, safe, and sanitary housing in Section 12, [Right-of-Way](https://snohomish.county.codes/SCC/30.91R.200) Manual, Washington State Department of Transportation. Any structural expansion of these existing [structures](https://snohomish.county.codes/SCC/30.91S.660) which would increase the degree of [setback](https://snohomish.county.codes/SCC/30.91S.160) nonconformity is prohibited.
(3) [Lots](https://snohomish.county.codes/SCC/30.91L.120) with less than sufficient square footage to meet minimum zoning requirements may be created in approving a [short subdivision](https://snohomish.county.codes/SCC/30.91S.280), when all of the following apply:
(a) As a condition of [short subdivision](https://snohomish.county.codes/SCC/30.91S.280) approval, land must be dedicated for county road purposes pursuant to SCC [30\.41B.200(4)](https://snohomish.county.codes/SCC/30.41B.200\(4\) "30.41B.200(4)") and such [dedication](https://snohomish.county.codes/SCC/30.91D.070) would cause the [short subdivision](https://snohomish.county.codes/SCC/30.91S.280) to lose one or more [lots](https://snohomish.county.codes/SCC/30.91L.120) due to insufficient square footage to meet minimum zoning requirements;
(b) No [lot area](https://snohomish.county.codes/SCC/30.91L.130) may be reduced more than 10 percent below minimum zoning requirements; and
(c) All [lots](https://snohomish.county.codes/SCC/30.91L.120) shall meet minimum county health department requirements. (Added by Amended Ord. 02-064, Dec. 9, 2002, Eff date Feb. 1, 2003; Amended by Amended Ord. 22-062, Oct. 26, 2022, Eff date Jan. 1, 2023).
###### 30\.23.235 Development on substandard lots - General.[Search Within This](https://snohomish.county.codes/SCC/30.23.235/search)
This section is included in your selections.
Development on [substandard lots](https://snohomish.county.codes/SCC/30.91L.195), including single-[family](https://snohomish.county.codes/SCC/30.91F.080) development under SCC [30\.23.240](https://snohomish.county.codes/SCC/30.23.240 "30.23.240 Residential use of substandard lots"), is permitted, provided that it shall comply with the following requirements:
(1) Development permitted on [substandard lots](https://snohomish.county.codes/SCC/30.91L.195) regulated by this chapter shall be subject to compliance with all other applicable provisions of this title.
(2) Where the combination of [substandard lots](https://snohomish.county.codes/SCC/30.91L.195) is required or proposed for the development of a [single-family dwelling](https://snohomish.county.codes/SCC/30.91D.510), or other [building](https://snohomish.county.codes/SCC/30.91B.200) or [structure](https://snohomish.county.codes/SCC/30.91S.660), the lands involved shall be combined and considered to be a single undivided parcel. No portion of said parcel shall be used, altered or sold in any manner which diminishes compliance with [lot area](https://snohomish.county.codes/SCC/30.91L.130) and width requirements, nor shall any division be made which creates a [lot](https://snohomish.county.codes/SCC/30.91L.120) with a width or area below the requirements permitted by this title. A [site](https://snohomish.county.codes/SCC/30.91S.340) plan depicting the [lot](https://snohomish.county.codes/SCC/30.91L.120) combination shall be recorded with the auditor prior to [permit](https://snohomish.county.codes/SCC/30.91P.140) issuance.
(3) The development of new [duplexes](https://snohomish.county.codes/SCC/30.91D.480) is prohibited.
(4) Except as provided in subsection [(3)](https://snohomish.county.codes/SCC/30.23.235\(3\) "30.23.235(3)") of this section and SCC [30\.23.240](https://snohomish.county.codes/SCC/30.23.240 "30.23.240 Residential use of substandard lots"), [substandard lots](https://snohomish.county.codes/SCC/30.91L.195) may be used for development permitted under this title and associated [incidental uses](https://snohomish.county.codes/SCC/30.91I.030), provided that the development:
(a) Complies with the [setback](https://snohomish.county.codes/SCC/30.91S.160) requirements of SCC [30\.23.030](https://snohomish.county.codes/SCC/30.23.030 "30.23.030 Rural, Resource, Urban (Non-Residential) and other zone categories - Bulk matrix");
(b) Complies with the county health department standards; and
(c) Does not exceed the [lot coverage](https://snohomish.county.codes/SCC/30.91L.150) requirement in SCC [30\.23.030](https://snohomish.county.codes/SCC/30.23.030 "30.23.030 Rural, Resource, Urban (Non-Residential) and other zone categories - Bulk matrix"). (Added by Amended Ord. 11-058, Jan. 25, 2012, Eff date Feb. 16, 2012; Amended by Amended Ord. 21-018, June 9, 2021, Eff date June 19, 2021; Amended by Amended Ord. 22-062, Oct. 26, 2022, Eff date Jan. 1, 2023).
###### 30\.23.240 Residential use of substandard lots.[Search Within This](https://snohomish.county.codes/SCC/30.23.240/search)
This section is included in your selections.
(1) Use of [lots](https://snohomish.county.codes/SCC/30.91L.120) for residential development when such [lots](https://snohomish.county.codes/SCC/30.91L.120) have substandard area for their present zone is permitted for [single-family dwellings](https://snohomish.county.codes/SCC/30.91D.510) and uses incidental to [single-family dwellings](https://snohomish.county.codes/SCC/30.91D.510) if the [lot](https://snohomish.county.codes/SCC/30.91L.120) was legally created and satisfied the [lot area](https://snohomish.county.codes/SCC/30.91L.130) and [lot width](https://snohomish.county.codes/SCC/30.91L.210) requirements applicable at the time of [lot](https://snohomish.county.codes/SCC/30.91L.120) creation; but such [lots](https://snohomish.county.codes/SCC/30.91L.120) may be used only in the manner and upon the conditions set forth below:
(a) A [person](https://snohomish.county.codes/SCC/30.91P.160) who owns a single [substandard lot](https://snohomish.county.codes/SCC/30.91L.195) or two or more [substandard lots](https://snohomish.county.codes/SCC/30.91L.195) which were not contiguous and under single ownership on December 31, 1989, may use such [lot](https://snohomish.county.codes/SCC/30.91L.120) or [lots](https://snohomish.county.codes/SCC/30.91L.120), either individually or in combination, for [building](https://snohomish.county.codes/SCC/30.91B.200) [sites](https://snohomish.county.codes/SCC/30.91S.340), one [single-family dwelling](https://snohomish.county.codes/SCC/30.91D.510) plus [incidental uses](https://snohomish.county.codes/SCC/30.91I.030) thereto per [building](https://snohomish.county.codes/SCC/30.91B.200) [site](https://snohomish.county.codes/SCC/30.91S.340) if the [building](https://snohomish.county.codes/SCC/30.91B.200) [sites](https://snohomish.county.codes/SCC/30.91S.340) meet the [setbacks](https://snohomish.county.codes/SCC/30.91S.160) and [lot coverage](https://snohomish.county.codes/SCC/30.91L.150) requirements and the county health department standards for the zone in which they are located;
(b) A [person](https://snohomish.county.codes/SCC/30.91P.160) who owns two or more [substandard lots](https://snohomish.county.codes/SCC/30.91L.195) which were contiguous and under single ownership on December 31, 1989, may use such [lots](https://snohomish.county.codes/SCC/30.91L.120), either individually or in combination, for up to two [building](https://snohomish.county.codes/SCC/30.91B.200) [sites](https://snohomish.county.codes/SCC/30.91S.340), one [single-family dwelling](https://snohomish.county.codes/SCC/30.91D.510) plus [incidental uses](https://snohomish.county.codes/SCC/30.91I.030) thereto per [building](https://snohomish.county.codes/SCC/30.91B.200) [site](https://snohomish.county.codes/SCC/30.91S.340) if the [building](https://snohomish.county.codes/SCC/30.91B.200) [sites](https://snohomish.county.codes/SCC/30.91S.340) meet the [setbacks](https://snohomish.county.codes/SCC/30.91S.160) and [lot coverage](https://snohomish.county.codes/SCC/30.91L.150) requirements and the county health department standards for the zone in which they are located. Additional contiguous [substandard lots](https://snohomish.county.codes/SCC/30.91L.195) owned by the same [person](https://snohomish.county.codes/SCC/30.91P.160) may be used for additional [building](https://snohomish.county.codes/SCC/30.91B.200) [sites](https://snohomish.county.codes/SCC/30.91S.340), one [dwelling](https://snohomish.county.codes/SCC/30.91D.490) per [building](https://snohomish.county.codes/SCC/30.91B.200) [site](https://snohomish.county.codes/SCC/30.91S.340) if the additional [building](https://snohomish.county.codes/SCC/30.91B.200) [sites](https://snohomish.county.codes/SCC/30.91S.340) contain at least one acre (43,560 square feet) or 50 percent of the [lot area](https://snohomish.county.codes/SCC/30.91L.130) required for the zone in which such [building](https://snohomish.county.codes/SCC/30.91B.200) [sites](https://snohomish.county.codes/SCC/30.91S.340) are located, whichever is less and if the [building](https://snohomish.county.codes/SCC/30.91B.200) [sites](https://snohomish.county.codes/SCC/30.91S.340) meet the [setbacks](https://snohomish.county.codes/SCC/30.91S.160) and [lot coverage](https://snohomish.county.codes/SCC/30.91L.150) requirements and the county health department standards for the zone in which they are located; and
(c) Notwithstanding the provisions of subsection [(1)(b)](https://snohomish.county.codes/SCC/30.23.240\(1\)\(b\) "30.23.240(1)(b)") of this section, a [person](https://snohomish.county.codes/SCC/30.91P.160) who owns two or more [substandard lots](https://snohomish.county.codes/SCC/30.91L.195) which were established on or after April 15, 1957, and which were contiguous and under single ownership on December 31, 1989, may use such [lots](https://snohomish.county.codes/SCC/30.91L.120), either individually or in combination, for [building](https://snohomish.county.codes/SCC/30.91B.200) [sites](https://snohomish.county.codes/SCC/30.91S.340), one [single-family dwelling](https://snohomish.county.codes/SCC/30.91D.510) plus [incidental uses](https://snohomish.county.codes/SCC/30.91I.030) thereto per [building](https://snohomish.county.codes/SCC/30.91B.200) [site](https://snohomish.county.codes/SCC/30.91S.340) if the [building](https://snohomish.county.codes/SCC/30.91B.200) [sites](https://snohomish.county.codes/SCC/30.91S.340) meet the [setbacks](https://snohomish.county.codes/SCC/30.91S.160) and [lot coverage](https://snohomish.county.codes/SCC/30.91L.150) requirements and the county health department standards for the zone in which they are located.
(2) [Single-family dwellings](https://snohomish.county.codes/SCC/30.91D.510) and [incidental uses](https://snohomish.county.codes/SCC/30.91I.030) established pursuant to subsection [(1)](https://snohomish.county.codes/SCC/30.23.240\(1\) "30.23.240(1)") of this section are permitted uses and are not [nonconforming uses](https://snohomish.county.codes/SCC/30.91N.070).
(3) Existing [single-family dwellings](https://snohomish.county.codes/SCC/30.91D.510) on [substandard lots](https://snohomish.county.codes/SCC/30.91L.195) that are nonconforming only because they do not meet the criteria of subsection [(1)](https://snohomish.county.codes/SCC/30.23.240\(1\) "30.23.240(1)") of this section may improve or add to the [single-family dwelling](https://snohomish.county.codes/SCC/30.91D.510) and may improve, add to or add [incidental uses](https://snohomish.county.codes/SCC/30.91I.030) to the [single-family dwelling](https://snohomish.county.codes/SCC/30.91D.510); provided, that any improvements or additions meet the [setbacks](https://snohomish.county.codes/SCC/30.91S.160) and [lot coverage](https://snohomish.county.codes/SCC/30.91L.150) requirements and the county health department standards for the zone in which they are located.
(4) Existing [single-family dwellings](https://snohomish.county.codes/SCC/30.91D.510) on [substandard lots](https://snohomish.county.codes/SCC/30.91L.195) that are nonconforming because they do not meet the [setbacks](https://snohomish.county.codes/SCC/30.91S.160), [lot coverage](https://snohomish.county.codes/SCC/30.91L.150) requirements, or county health department standards for the zone in which they are located may improve or add to the [single-family dwelling](https://snohomish.county.codes/SCC/30.91D.510) and may improve, add to or add [incidental uses](https://snohomish.county.codes/SCC/30.91I.030) to the [single-family dwelling](https://snohomish.county.codes/SCC/30.91D.510) provided that any improvements or additions do not increase the existing nonconformity or create a new nonconformity with [setbacks](https://snohomish.county.codes/SCC/30.91S.160), [lot coverage](https://snohomish.county.codes/SCC/30.91L.150) requirements, or county health department standards. (Added by Amended Ord. 02-064, Dec. 9, 2002, Eff date Feb. 1, 2003; Amended by Emerg. Ord. 08-090, June 16, 2008, Eff date June 16, 2008; Amended by Emerg. Ord. 08-157, Dec. 10, 2008, Eff date Dec. 16, 2008; Amended by Emerg. Ord. 09-035, Apr. 13, 2009, Eff date Apr. 13, 2009; Reenacted by Ord. 09-101, Sept. 30, 2009, Eff date Oct. 16, 2009; Amended by Amended Ord. 22-062, Oct. 26, 2022, Eff date Jan. 1, 2023).
###### 30\.23.250 Aggregation of lots.[Search Within This](https://snohomish.county.codes/SCC/30.23.250/search)
This section is included in your selections.
(1) If two or more [lots](https://snohomish.county.codes/SCC/30.91L.120) are built upon as a unit, are under one ownership, and when the common boundary line separating the [lots](https://snohomish.county.codes/SCC/30.91L.120) is covered by a [building](https://snohomish.county.codes/SCC/30.91B.200) or permitted group of [buildings](https://snohomish.county.codes/SCC/30.91B.200), the [lots](https://snohomish.county.codes/SCC/30.91L.120) shall be considered a single [lot](https://snohomish.county.codes/SCC/30.91L.120), except as otherwise specifically allowed by this code.
(2) The aggregated [lot](https://snohomish.county.codes/SCC/30.91L.120) shall constitute a single [building](https://snohomish.county.codes/SCC/30.91B.200) [site](https://snohomish.county.codes/SCC/30.91S.340) and the [setbacks](https://snohomish.county.codes/SCC/30.91S.160) required by this title shall then apply to the aggregated [lot](https://snohomish.county.codes/SCC/30.91L.120). (Added by Amended Ord. 02-064, Dec. 9, 2002, Eff date Feb. 1, 2003).
###### 30\.23.260 Parcels split by UGA boundary line.[Search Within This](https://snohomish.county.codes/SCC/30.23.260/search)
This section is included in your selections.
(1) [Subdivision](https://snohomish.county.codes/SCC/30.91S.710) of a [split parcel](https://snohomish.county.codes/SCC/30.91S.545) shall be permitted along the [UGA boundary](https://snohomish.county.codes/SCC/30.91U.091) line by using the [short subdivision](https://snohomish.county.codes/SCC/30.91S.280) provisions pursuant to chapter [30\.41B](https://snohomish.county.codes/SCC/30.41B "ch. 30.41B Short Subdivisions") SCC or by submittal of a plat pursuant to chapter [30\.41A](https://snohomish.county.codes/SCC/30.41A "ch. 30.41A Subdivisions") SCC. A [split parcel](https://snohomish.county.codes/SCC/30.91S.545) may be subdivided along the [UGA boundary](https://snohomish.county.codes/SCC/30.91U.091) line using one of three methods. First, a [split parcel](https://snohomish.county.codes/SCC/30.91S.545) may be subdivided along the [UGA boundary](https://snohomish.county.codes/SCC/30.91U.091) line into two [lots](https://snohomish.county.codes/SCC/30.91L.120), whereby one [lot](https://snohomish.county.codes/SCC/30.91L.120) remains within the [UGA](https://snohomish.county.codes/SCC/30.91U.090) and the other [lot](https://snohomish.county.codes/SCC/30.91L.120) remains outside the [UGA](https://snohomish.county.codes/SCC/30.91U.090), pursuant to SCC [30\.41B.010(5)](https://snohomish.county.codes/SCC/30.41B.010\(5\) "30.41B.010(5)"). Second, a [split parcel](https://snohomish.county.codes/SCC/30.91S.545) may be subdivided as part of a [short plat](https://snohomish.county.codes/SCC/30.91S.270) application, pursuant to SCC [30\.41B.010(6)](https://snohomish.county.codes/SCC/30.41B.010\(6\) "30.41B.010(6)"). Finally, a [split parcel](https://snohomish.county.codes/SCC/30.91S.545) may be subdivided as part of a plat application, pursuant to SCC [30\.41A.010(3)](https://snohomish.county.codes/SCC/30.41A.010\(3\) "30.41A.010(3)"). (Added by Ord. 06-062, Oct. 4, 2006, Eff date Oct. 15, 2006).
###### 30\.23.270 Attached single family dwellings.[Search Within This](https://snohomish.county.codes/SCC/30.23.270/search)
This section is included in your selections.
In urban zones, a [subdivision](https://snohomish.county.codes/SCC/30.91S.710) or [short subdivision](https://snohomish.county.codes/SCC/30.91S.280) that includes attached [single family dwellings](https://snohomish.county.codes/SCC/30.91D.510) may meet the [lot](https://snohomish.county.codes/SCC/30.91L.120) yield and bulk regulations for the zone in which it is located pursuant to this section. Such [subdivisions](https://snohomish.county.codes/SCC/30.91S.710) or [short subdivisions](https://snohomish.county.codes/SCC/30.91S.280) may also include detached [single family dwellings](https://snohomish.county.codes/SCC/30.91D.510) and [accessory dwelling units](https://snohomish.county.codes/SCC/30.91A.035) located on [lots](https://snohomish.county.codes/SCC/30.91L.120) containing a [principal unit](https://snohomish.county.codes/SCC/30.91P.307).
(1) [Building](https://snohomish.county.codes/SCC/30.91B.200) [site](https://snohomish.county.codes/SCC/30.91S.340) yield shall be an interim calculation before determining [lot](https://snohomish.county.codes/SCC/30.91L.120) yield and shall be computed as follows:
(a) Determine area of the [site](https://snohomish.county.codes/SCC/30.91S.340) in square feet;
(b) Divide the area of the [site](https://snohomish.county.codes/SCC/30.91S.340) by the minimum [lot area](https://snohomish.county.codes/SCC/30.91L.130) for the zone under SCC Table [30\.23.032](https://snohomish.county.codes/SCC/30.23.032#Tab30.23.032 "Table 30.23.032 Urban Residential Zones Bulk Matrix");
(c) The resulting quotient is the number of potential [building](https://snohomish.county.codes/SCC/30.91B.200) [sites](https://snohomish.county.codes/SCC/30.91S.340); and
(d) The maximum number of [building](https://snohomish.county.codes/SCC/30.91B.200) [sites](https://snohomish.county.codes/SCC/30.91S.340) shall be determined by rounding up to the next whole unit when a fraction of a unit is equal to five-tenths or greater.
(2) When converting [building](https://snohomish.county.codes/SCC/30.91B.200) [sites](https://snohomish.county.codes/SCC/30.91S.340) into proposed [lots](https://snohomish.county.codes/SCC/30.91L.120):
(a) [Buildings](https://snohomish.county.codes/SCC/30.91B.200) with two [single family attached dwellings](https://snohomish.county.codes/SCC/30.91D.515) count as one [building](https://snohomish.county.codes/SCC/30.91B.200);
(b) [Single family dwellings](https://snohomish.county.codes/SCC/30.91D.510) (detached) count as one [building](https://snohomish.county.codes/SCC/30.91B.200); and
(c) Attached and [detached accessory dwelling units](https://snohomish.county.codes/SCC/30.91A.050) do not count as proposed [buildings](https://snohomish.county.codes/SCC/30.91B.200) or [lots](https://snohomish.county.codes/SCC/30.91L.120) for purposes of this calculation.
(3) Each single [lot](https://snohomish.county.codes/SCC/30.91L.120) shall be at least 1,500 square feet in area.
(4) [Lots](https://snohomish.county.codes/SCC/30.91L.120) in [subdivisions](https://snohomish.county.codes/SCC/30.91S.710) and [short subdivisions](https://snohomish.county.codes/SCC/30.91S.280) created under the provisions of this section shall have a maximum [lot coverage](https://snohomish.county.codes/SCC/30.91L.150) of 55 percent.
(5) There is no minimum [lot width](https://snohomish.county.codes/SCC/30.91L.210).
(6) Attached [single family dwellings](https://snohomish.county.codes/SCC/30.91D.510) have no required [setback](https://snohomish.county.codes/SCC/30.91S.160) from the abutting [lot](https://snohomish.county.codes/SCC/30.91L.120) line.
(7) [Setbacks](https://snohomish.county.codes/SCC/30.91S.160) from other [lot](https://snohomish.county.codes/SCC/30.91L.120) lines shall be:
(a) Five feet from side and [rear lot lines](https://snohomish.county.codes/SCC/30.91L.180), except [buildings](https://snohomish.county.codes/SCC/30.91B.200) taller than 30 feet in the R-7,200 zone shall be set back consistent with SCC [30\.23.310](https://snohomish.county.codes/SCC/30.23.310 "30.23.310 Building separation for buildings taller than 30 feet in the R-7,200 zone").
(b) Fifteen feet from [right-of-way](https://snohomish.county.codes/SCC/30.91R.200) and [private roads](https://snohomish.county.codes/SCC/30.91R.230), except garages must be set back 18 feet from [right-of-way](https://snohomish.county.codes/SCC/30.91R.200) (with the exception of [alleys](https://snohomish.county.codes/SCC/30.91A.150)) or [private roads](https://snohomish.county.codes/SCC/30.91R.230) and [corner lots](https://snohomish.county.codes/SCC/30.91L.140) may reduce the [right-of-way](https://snohomish.county.codes/SCC/30.91R.200) [setback](https://snohomish.county.codes/SCC/30.91S.160) to no less than 10 feet. (Added by Ord. 24-061, Aug. 14, 2024, Eff date Aug. 26, 2024).
###### 30\.23.300 Building separation for single-family detached, single-family attached, and duplex structures constructed in the LDMR and MR zones.[Search Within This](https://snohomish.county.codes/SCC/30.23.300/search)
This section is included in your selections.
(1) Single-[family](https://snohomish.county.codes/SCC/30.91F.080) detached, single-[family](https://snohomish.county.codes/SCC/30.91F.080) attached, and [duplex](https://snohomish.county.codes/SCC/30.91D.480) [structures](https://snohomish.county.codes/SCC/30.91S.660) in the LDMR and MR zones shall have a minimum [building](https://snohomish.county.codes/SCC/30.91B.200) separation of 10 feet except as otherwise required by subsection [(2)](https://snohomish.county.codes/SCC/30.23.300\(2\) "30.23.300(2)") of this section.
(2) Single-[family](https://snohomish.county.codes/SCC/30.91F.080) detached, single-[family](https://snohomish.county.codes/SCC/30.91F.080) attached, and [duplex](https://snohomish.county.codes/SCC/30.91D.480) [structures](https://snohomish.county.codes/SCC/30.91S.660) in the LDMR and MR zones with a third-[story](https://snohomish.county.codes/SCC/30.91S.630) side yard ingress/egress window shall have a minimum of 15 feet [building](https://snohomish.county.codes/SCC/30.91B.200) separation, provided that [building](https://snohomish.county.codes/SCC/30.91B.200) separation may be reduced to 10 feet when:
(a) The [dwelling units](https://snohomish.county.codes/SCC/30.91D.530) are equipped with approved NFPA 13D automatic sprinkler systems; or
(b) The [dwelling unit](https://snohomish.county.codes/SCC/30.91D.530) boundaries are drawn with a "zero [lot](https://snohomish.county.codes/SCC/30.91L.120) line" on one side of the unit. (Added by Amended Ord. 12-049, Oct. 3, 2012, Eff date Jan. 1, 2013; Amended by Ord. 23-032, June 7, 2023, Eff date June 23, 2023).
###### 30\.23.310 Building separation for buildings taller than 30 feet in the R-7,200 zone.[Search Within This](https://snohomish.county.codes/SCC/30.23.310/search)
This section is included in your selections.
[Buildings](https://snohomish.county.codes/SCC/30.91B.200) exceeding 30 feet in height must provide a minimum 10-foot [setback](https://snohomish.county.codes/SCC/30.91S.160) from side and [rear lot lines](https://snohomish.county.codes/SCC/30.91L.180) except single [family](https://snohomish.county.codes/SCC/30.91F.080) attached, [duplex](https://snohomish.county.codes/SCC/30.91D.480), and [townhouse](https://snohomish.county.codes/SCC/30.91D.525) [buildings](https://snohomish.county.codes/SCC/30.91B.200) where one or more units exceeds 30 feet in height but the height of an end unit is less than or equal to 30 feet may provide a five-foot side [setback](https://snohomish.county.codes/SCC/30.91S.160) from that end unit. (Added by Amended Ord. 22-016, May 4, 2022, Eff date May 19, 2022).
###### 30\.23.400 Allowing a complete development application to use amended provisions adopted by Amended Ordinance No. 21-004.[Search Within This](https://snohomish.county.codes/SCC/30.23.400/search)
This section is included in your selections.
(Added by Amended Ord. 21-004, Mar. 15, 2021, Eff date Mar. 26, 2021; Repealed by Amended Ord. 21-004, Mar. 15, 2021, Eff date Mar. 26, 2022).
[Your Selections](https://snohomish.county.codes/selections)
What’s Nearby
Title
[29](https://snohomish.county.codes/SCC/29) [30](https://snohomish.county.codes/SCC/30) [31](https://snohomish.county.codes/SCC/31)
Subtitle
[30\.1](https://snohomish.county.codes/SCC/30.1) [30\.2](https://snohomish.county.codes/SCC/30.2) [30\.3](https://snohomish.county.codes/SCC/30.3)
Chapter
[30\.22](https://snohomish.county.codes/SCC/30.22) [30\.23](https://snohomish.county.codes/SCC/30.23) [30\.23A](https://snohomish.county.codes/SCC/30.23A)
On This Page
[30\.23.010 Bulk matrices - Purpose, applicability and general provisions](https://snohomish.county.codes/SCC/30.23.010 "SCC 30.23.010, Bulk matrices - Purpose, applicability and general provisions") [30\.23.020 Minimum net density for residential development in UGAs](https://snohomish.county.codes/SCC/30.23.020 "SCC 30.23.020, Minimum net density for residential development in UGAs") [30\.23.030 Rural, Resource, Urban (Non-Residential) and other zone categories - Bulk matrix](https://snohomish.county.codes/SCC/30.23.030 "SCC 30.23.030, Rural, Resource, Urban (Non-Residential) and other zone categories - Bulk matrix") [30\.23.032 Urban Residential Zone categories - bulk matrix](https://snohomish.county.codes/SCC/30.23.032 "SCC 30.23.032, Urban Residential Zone categories - bulk matrix") [30\.23.040 Reference notes for SCC Tables 30.23.030 and 30.23.032](https://snohomish.county.codes/SCC/30.23.040 "SCC 30.23.040, Reference notes for SCC Tables 30.23.030 and 30.23.032") [30\.23.041 Setbacks from road network elements in Urban Zones](https://snohomish.county.codes/SCC/30.23.041 "SCC 30.23.041, Setbacks from road network elements in Urban Zones") [30\.23.043 Setbacks from road network elements in Rural Zones](https://snohomish.county.codes/SCC/30.23.043 "SCC 30.23.043, Setbacks from road network elements in Rural Zones") [30\.23.045 Setbacks from road network elements in Resource Zones](https://snohomish.county.codes/SCC/30.23.045 "SCC 30.23.045, Setbacks from road network elements in Resource Zones") [30\.23.047 Setbacks from road network elements in other zones](https://snohomish.county.codes/SCC/30.23.047 "SCC 30.23.047, Setbacks from road network elements in other zones") [30\.23.049 Reference notes for SCC Tables 30.23.041 through 30.23.047](https://snohomish.county.codes/SCC/30.23.049 "SCC 30.23.049, Reference notes for SCC Tables 30.23.041 through 30.23.047") [30\.23.050 Height requirements, exceptions and measuring height](https://snohomish.county.codes/SCC/30.23.050 "SCC 30.23.050, Height requirements, exceptions and measuring height") [30\.23.055 Allowing a Complete Development Application to Opt-in to the Requirements of Ordinance No. 23-033](https://snohomish.county.codes/SCC/30.23.055 "SCC 30.23.055, Allowing a Complete Development Application to Opt-in to the Requirements of Ordinance No. 23-033") [30\.23.060 Binding site plans (BSP)](https://snohomish.county.codes/SCC/30.23.060 "SCC 30.23.060, Binding site plans (BSP)") [30\.23.100 Setbacks and corner lot sight clearance triangles](https://snohomish.county.codes/SCC/30.23.100 "SCC 30.23.100, Setbacks and corner lot sight clearance triangles") [30\.23.110 Special setbacks for certain uses](https://snohomish.county.codes/SCC/30.23.110 "SCC 30.23.110, Special setbacks for certain uses") [30\.23.115 Setback exceptions for minor architectural features](https://snohomish.county.codes/SCC/30.23.115 "SCC 30.23.115, Setback exceptions for minor architectural features") [30\.23.120 Front setback exceptions for new structures from existing road network elements](https://snohomish.county.codes/SCC/30.23.120 "SCC 30.23.120, Front setback exceptions for new structures from existing road network elements") [30\.23.125 Setback exceptions from alleys, auto and shared courts, and shared driveways](https://snohomish.county.codes/SCC/30.23.125 "SCC 30.23.125, Setback exceptions from alleys, auto and shared courts, and shared driveways") [30\.23.130 Setback for new private road network elements from existing structures](https://snohomish.county.codes/SCC/30.23.130 "SCC 30.23.130, Setback for new private road network elements from existing structures") [30\.23.150 Setback exception for lots combined as a single building site](https://snohomish.county.codes/SCC/30.23.150 "SCC 30.23.150, Setback exception for lots combined as a single building site") [30\.23.200 Reductions to lot area](https://snohomish.county.codes/SCC/30.23.200 "SCC 30.23.200, Reductions to lot area") [30\.23.210 Lot size averaging – Urban zones](https://snohomish.county.codes/SCC/30.23.210 "SCC 30.23.210, Lot size averaging – Urban zones") [30\.23.215 Lot size averaging – F\&R, R-5, and RD zoning](https://snohomish.county.codes/SCC/30.23.215 "SCC 30.23.215, Lot size averaging – F&R, R-5, and RD zoning") [30\.23.220 Minimum lot area for rural clusters in RUTAs](https://snohomish.county.codes/SCC/30.23.220 "SCC 30.23.220, Minimum lot area for rural clusters in RUTAs") [30\.23.230 Lot area when land is taken for public use](https://snohomish.county.codes/SCC/30.23.230 "SCC 30.23.230, Lot area when land is taken for public use") [30\.23.235 Development on substandard lots - General](https://snohomish.county.codes/SCC/30.23.235 "SCC 30.23.235, Development on substandard lots - General") [30\.23.240 Residential use of substandard lots](https://snohomish.county.codes/SCC/30.23.240 "SCC 30.23.240, Residential use of substandard lots") [30\.23.250 Aggregation of lots](https://snohomish.county.codes/SCC/30.23.250 "SCC 30.23.250, Aggregation of lots") [30\.23.260 Parcels split by UGA boundary line](https://snohomish.county.codes/SCC/30.23.260 "SCC 30.23.260, Parcels split by UGA boundary line") [30\.23.270 Attached single family dwellings](https://snohomish.county.codes/SCC/30.23.270 "SCC 30.23.270, Attached single family dwellings") [30\.23.300 Building separation for single-family detached, single-family attached, and duplex structures constructed in the LDMR and MR zones](https://snohomish.county.codes/SCC/30.23.300 "SCC 30.23.300, Building separation for single-family detached, single-family attached, and duplex structures constructed in the LDMR and MR zones") [30\.23.310 Building separation for buildings taller than 30 feet in the R-7,200 zone](https://snohomish.county.codes/SCC/30.23.310 "SCC 30.23.310, Building separation for buildings taller than 30 feet in the R-7,200 zone") [30\.23.400 Allowing a complete development application to use amended provisions adopted by Amended Ordinance No. 21-004](https://snohomish.county.codes/SCC/30.23.400 "SCC 30.23.400, Allowing a complete development application to use amended provisions adopted by Amended Ordinance No. 21-004")
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# Contents
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- [All Publications](https://snohomish.county.codes/SCC/30.23.210#contents-products)
- [County Charter](https://snohomish.county.codes/SCC/30.23.210#contents-product-Charter)
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- [Countywide Planning Policies](https://snohomish.county.codes/SCC/30.23.210#contents-product-CPP)
- [Your Selections](https://snohomish.county.codes/SCC/30.23.210#contents-selections)
[Snohomish County Charter](https://snohomish.county.codes/SCC/30.23.210#contents-product-Charter) [Snohomish County Code](https://snohomish.county.codes/SCC/30.23.210#contents-product-SCC) [Countywide Planning Policies for Snohomish County](https://snohomish.county.codes/SCC/30.23.210#contents-product-CPP)
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| Readable Markdown | This chapter is included in your selections.
Sections:
- [30\.23.010 Bulk matrices - Purpose, applicability and general provisions.](https://snohomish.county.codes/SCC/30.23.010)
- [30\.23.020 Minimum net density for residential development in UGAs.](https://snohomish.county.codes/SCC/30.23.020)
- [30\.23.030 Rural, Resource, Urban (Non-Residential) and other zone categories - Bulk matrix.](https://snohomish.county.codes/SCC/30.23.030)
- [30\.23.032 Urban Residential Zone categories - bulk matrix.](https://snohomish.county.codes/SCC/30.23.032)
- [30\.23.040 Reference notes for SCC Tables 30.23.030 and 30.23.032.](https://snohomish.county.codes/SCC/30.23.040)
- [30\.23.041 Setbacks from road network elements in Urban Zones.](https://snohomish.county.codes/SCC/30.23.041)
- [30\.23.043 Setbacks from road network elements in Rural Zones.](https://snohomish.county.codes/SCC/30.23.043)
- [30\.23.045 Setbacks from road network elements in Resource Zones.](https://snohomish.county.codes/SCC/30.23.045)
- [30\.23.047 Setbacks from road network elements in other zones.](https://snohomish.county.codes/SCC/30.23.047)
- [30\.23.049 Reference notes for SCC Tables 30.23.041 through 30.23.047.](https://snohomish.county.codes/SCC/30.23.049)
- [30\.23.050 Height requirements, exceptions and measuring height.](https://snohomish.county.codes/SCC/30.23.050)
- [30\.23.055 Repealed.](https://snohomish.county.codes/SCC/30.23.055)
- [30\.23.060 Binding site plans (BSP).](https://snohomish.county.codes/SCC/30.23.060)
- [30\.23.100 Setbacks and corner lot sight clearance triangles.](https://snohomish.county.codes/SCC/30.23.100)
- [30\.23.110 Special setbacks for certain uses.](https://snohomish.county.codes/SCC/30.23.110)
- [30\.23.115 Setback exceptions for minor architectural features.](https://snohomish.county.codes/SCC/30.23.115)
- [30\.23.120 Front setback exceptions for new structures from existing road network elements.](https://snohomish.county.codes/SCC/30.23.120)
- [30\.23.125 Repealed.](https://snohomish.county.codes/SCC/30.23.125)
- [30\.23.130 Setback for new private road network elements from existing structures.](https://snohomish.county.codes/SCC/30.23.130)
- [30\.23.150 Setback exception for lots combined as a single building site.](https://snohomish.county.codes/SCC/30.23.150)
- [30\.23.200 Reductions to lot area.](https://snohomish.county.codes/SCC/30.23.200)
- [30\.23.210 Lot size averaging – Urban zones.](https://snohomish.county.codes/SCC/30.23.210)
- [30\.23.215 Lot size averaging – F\&R, R-5, and RD zoning.](https://snohomish.county.codes/SCC/30.23.215)
- [30\.23.220 Minimum lot area for rural clusters in RUTAs.](https://snohomish.county.codes/SCC/30.23.220)
- [30\.23.230 Lot area when land is taken for public use.](https://snohomish.county.codes/SCC/30.23.230)
- [30\.23.235 Development on substandard lots - General.](https://snohomish.county.codes/SCC/30.23.235)
- [30\.23.240 Residential use of substandard lots.](https://snohomish.county.codes/SCC/30.23.240)
- [30\.23.250 Aggregation of lots.](https://snohomish.county.codes/SCC/30.23.250)
- [30\.23.260 Parcels split by UGA boundary line.](https://snohomish.county.codes/SCC/30.23.260)
- [30\.23.270 Attached single family dwellings.](https://snohomish.county.codes/SCC/30.23.270)
- [30\.23.300 Building separation for single-family detached, single-family attached, and duplex structures constructed in the LDMR and MR zones.](https://snohomish.county.codes/SCC/30.23.300)
- [30\.23.310 Building separation for buildings taller than 30 feet in the R-7,200 zone.](https://snohomish.county.codes/SCC/30.23.310)
- [30\.23.400 Repealed.](https://snohomish.county.codes/SCC/30.23.400)
This section is included in your selections.
SCC Tables [30\.23.030](https://snohomish.county.codes/SCC/30.23.030#Tab30.23.030 "Table 30.23.030 Rural, Resource, Urban (Non-Residential) and Other Zone Categories Bulk Matrix"), [30\.23.032](https://snohomish.county.codes/SCC/30.23.032#Tab30.23.032 "Table 30.23.032 Urban Residential Zones Bulk Matrix"), [30\.23.041](https://snohomish.county.codes/SCC/30.23.041#Tab30.23.041 "Table 30.23.041 Setbacks from Road Network Elements in Urban Zones"), [30\.23.043](https://snohomish.county.codes/SCC/30.23.043#Tab30.23.043 "Table 30.23.043 Setbacks from Road Network Elements in Rural Zones"), [30\.23.045](https://snohomish.county.codes/SCC/30.23.045#Tab30.23.045 "Table 30.23.045 Setbacks from Road Network Elements in Resource Zones"), and [30\.23.047](https://snohomish.county.codes/SCC/30.23.047#Tab30.23.047 "Table 30.23.047 Setbacks from Road Network Elements in Other Zones") constitute the bulk matrices. The bulk matrices contain the [setback](https://snohomish.county.codes/SCC/30.91S.160), [lot coverage](https://snohomish.county.codes/SCC/30.91L.150), [building height](https://snohomish.county.codes/SCC/30.91B.240), and [lot](https://snohomish.county.codes/SCC/30.91L.120) dimension regulations for all zones in unincorporated Snohomish County.
Additional [setback](https://snohomish.county.codes/SCC/30.91S.160), [lot width](https://snohomish.county.codes/SCC/30.91L.210) and [lot area](https://snohomish.county.codes/SCC/30.91L.130) requirements and exceptions are found at SCC [30\.23.100](https://snohomish.county.codes/SCC/30.23.100 "30.23.100 Setbacks and corner lot sight clearance triangles") through [30\.23.260](https://snohomish.county.codes/SCC/30.23.260 "30.23.260 Parcels split by UGA boundary line") and chapters [30\.34A](https://snohomish.county.codes/SCC/30.34A "ch. 30.34A Urban Center Development"), [30\.41C](https://snohomish.county.codes/SCC/30.41C "ch. 30.41C Rural Cluster Subdivisions and Short Subdivisions"), [30\.41G](https://snohomish.county.codes/SCC/30.41G "ch. 30.41G Cottage Housing"), [30\.42B](https://snohomish.county.codes/SCC/30.42B "ch. 30.42B Planned Residential Development") and [30\.67](https://snohomish.county.codes/SCC/30.67 "ch. 30.67 Shoreline Management Program") SCC.
All [lots](https://snohomish.county.codes/SCC/30.91L.120) and [structures](https://snohomish.county.codes/SCC/30.91S.660) shall conform to the requirements listed in the bulk matrices, SCC Tables [30\.23.030](https://snohomish.county.codes/SCC/30.23.030#Tab30.23.030 "Table 30.23.030 Rural, Resource, Urban (Non-Residential) and Other Zone Categories Bulk Matrix"), [30\.23.032](https://snohomish.county.codes/SCC/30.23.032#Tab30.23.032 "Table 30.23.032 Urban Residential Zones Bulk Matrix"), [30\.23.041](https://snohomish.county.codes/SCC/30.23.041#Tab30.23.041 "Table 30.23.041 Setbacks from Road Network Elements in Urban Zones"), [30\.23.043](https://snohomish.county.codes/SCC/30.23.043#Tab30.23.043 "Table 30.23.043 Setbacks from Road Network Elements in Rural Zones"), [30\.23.045](https://snohomish.county.codes/SCC/30.23.045#Tab30.23.045 "Table 30.23.045 Setbacks from Road Network Elements in Resource Zones"), and [30\.23.047](https://snohomish.county.codes/SCC/30.23.047#Tab30.23.047 "Table 30.23.047 Setbacks from Road Network Elements in Other Zones"), unless modified elsewhere in this title.
SCC [30\.23.040(41)](https://snohomish.county.codes/SCC/30.23.040\(41\) "30.23.040(41)") establishes minimum [lot area](https://snohomish.county.codes/SCC/30.91L.130) for the RU zone.
For design reasons, the [director](https://snohomish.county.codes/SCC/30.91D.280) may reduce the property line [setbacks](https://snohomish.county.codes/SCC/30.91S.160) established in SCC Tables [30\.23.030](https://snohomish.county.codes/SCC/30.23.030#Tab30.23.030 "Table 30.23.030 Rural, Resource, Urban (Non-Residential) and Other Zone Categories Bulk Matrix") and [30\.23.032](https://snohomish.county.codes/SCC/30.23.032#Tab30.23.032 "Table 30.23.032 Urban Residential Zones Bulk Matrix") by up to 25 percent for walls or [structures](https://snohomish.county.codes/SCC/30.91S.660) that are 20 feet in length or less; provided, that a minimum [setback](https://snohomish.county.codes/SCC/30.91S.160) of three feet is maintained.
Except as otherwise provided in this title, every required [setback](https://snohomish.county.codes/SCC/30.91S.160) shall be open and unobstructed from the ground to the sky except for trees and other natural vegetation, eaves, foundations and walls.
A [setback](https://snohomish.county.codes/SCC/30.91S.160) or the open space required around any [structure](https://snohomish.county.codes/SCC/30.91S.660) or use shall not be calculated in an adjacent development’s [setback](https://snohomish.county.codes/SCC/30.91S.160) or open space for a [structure](https://snohomish.county.codes/SCC/30.91S.660) or use.
SCC [30\.23.250](https://snohomish.county.codes/SCC/30.23.250 "30.23.250 Aggregation of lots") establishes the [setback](https://snohomish.county.codes/SCC/30.91S.160) requirements for aggregated [lots](https://snohomish.county.codes/SCC/30.91L.120). (Added by Amended Ord. 02-064, Dec. 9, 2002, Eff date Feb. 1, 2003; Amended by Amended Ord. 08-101, Jan. 21, 2009, Eff date Apr. 21, 2009; Amended by Amended Ord. 12-049, Oct. 3, 2012, Eff date Jan. 1, 2013).
This section is included in your selections.
Except as provided in subsection [(2)](https://snohomish.county.codes/SCC/30.23.020\(2\) "30.23.020(2)") of this section, a minimum [net density](https://snohomish.county.codes/SCC/30.91N.035) of six [dwelling units](https://snohomish.county.codes/SCC/30.91D.530) per acre shall be required in all [UGAs](https://snohomish.county.codes/SCC/30.91U.090) for:
New [subdivisions](https://snohomish.county.codes/SCC/30.91S.710), [short subdivisions](https://snohomish.county.codes/SCC/30.91S.280), PRDs, [townhouse](https://snohomish.county.codes/SCC/30.91D.525) and [mixed townhouse developments](https://snohomish.county.codes/SCC/30.91M.137), and [mobile home parks](https://snohomish.county.codes/SCC/30.91M.160); and
New residential development in the LDMR, MR, and [Townhouse](https://snohomish.county.codes/SCC/30.91D.525) zones.
A minimum [net density](https://snohomish.county.codes/SCC/30.91N.035) of 15 [dwelling units](https://snohomish.county.codes/SCC/30.91D.530) per acre shall be required for new residential development in the MR, NB, PCB, CB and GC zones in the Southwest [UGA](https://snohomish.county.codes/SCC/30.91U.090) where any portion of the [site](https://snohomish.county.codes/SCC/30.91S.340) is within 2,000 feet of the western edge of the [right-of-way](https://snohomish.county.codes/SCC/30.91R.200) of State Route 99 or within 800 feet of the eastern edge of the [right-of-way](https://snohomish.county.codes/SCC/30.91R.200) of State Route 99; and the [site](https://snohomish.county.codes/SCC/30.91S.340) is east of State Route 525. For [sites](https://snohomish.county.codes/SCC/30.91S.340) that are one acre or less in size, the [director](https://snohomish.county.codes/SCC/30.91D.280) may administratively approve a reduction in the minimum [net density](https://snohomish.county.codes/SCC/30.91N.035), provided that the [applicant](https://snohomish.county.codes/SCC/30.91A.220) demonstrates one or more of the following:
The [site](https://snohomish.county.codes/SCC/30.91S.340) is constrained due to its unusual shape, topography, [easements](https://snohomish.county.codes/SCC/30.91E.030), or [critical areas](https://snohomish.county.codes/SCC/30.91C.340) and the minimum [net density](https://snohomish.county.codes/SCC/30.91N.035) cannot be achieved;
The required [setbacks](https://snohomish.county.codes/SCC/30.91S.160) do not allow the minimum [net density](https://snohomish.county.codes/SCC/30.91N.035) to be achieved; or
The project contains both residential and non-residential uses.
Minimum [net density](https://snohomish.county.codes/SCC/30.91N.035) is the density of development excluding roads, [drainage](https://snohomish.county.codes/SCC/30.91D.350) [detention](https://snohomish.county.codes/SCC/30.91D.170)/[retention](https://snohomish.county.codes/SCC/30.91R.160) areas, biofiltration swales, areas required for public use, and [critical areas](https://snohomish.county.codes/SCC/30.91C.340) and their required buffers pursuant to chapters [30\.62A](https://snohomish.county.codes/SCC/30.62A "ch. 30.62A Wetlands and Fish & Wildlife Habitat Conservation Areas") and [30\.62B](https://snohomish.county.codes/SCC/30.62B "ch. 30.62B Geologically Hazardous Areas") SCC.
Minimum [net density](https://snohomish.county.codes/SCC/30.91N.035) is determined by rounding up to the next whole unit or [lot](https://snohomish.county.codes/SCC/30.91L.120) when a fraction of a unit or [lot](https://snohomish.county.codes/SCC/30.91L.120) is 0.5 or greater.
For new [subdivisions](https://snohomish.county.codes/SCC/30.91S.710) and [short subdivisions](https://snohomish.county.codes/SCC/30.91S.280), the minimum [lot](https://snohomish.county.codes/SCC/30.91L.120) size of the underlying zone may be reduced as necessary to allow a [lot](https://snohomish.county.codes/SCC/30.91L.120) yield that meets the minimum density requirement. Each [lot](https://snohomish.county.codes/SCC/30.91L.120) shall be at least 6,000 square feet, except as otherwise allowed by this title.
The minimum [net density](https://snohomish.county.codes/SCC/30.91N.035) requirement of this section shall not apply:
In the Darrington, Index, and Gold Bar [UGAs](https://snohomish.county.codes/SCC/30.91U.090); and
Where sewerage regulations, SCC [30\.29.100](https://snohomish.county.codes/SCC/30.29.100 "30.29.100 New structures and land divisions within UGA - public sewer connection required - exceptions"), require a lesser density. (Added by Amended Ord. 02-064, Dec. 9, 2002, Eff date Feb. 1, 2003; Amended by Amended Ord. 06-061, Aug. 1, 2007, Eff date Oct. 1, 2007; Amended by Ord. 17-062, Oct. 18, 2017, Eff date Dec. 17, 2017; Amended by Amended Ord. 18-026, May 23, 2018, Eff date June 11, 2018; Amended by Ord. 22-020, June 1, 2022, Eff date June 12, 2022; Amended by Ord. 25-045, Aug. 13, 2025, Eff date Sept. 6, 2025).
This section is included in your selections.
| | [Lot](https://snohomish.county.codes/SCC/30.91L.120) Dimension (ft)[54](https://snohomish.county.codes/SCC/30.23.040\(54\)#30.23.040\(54\) "30.23.040(54)") | [Setback](https://snohomish.county.codes/SCC/30.91S.160) Requirements From: (ft)[11](https://snohomish.county.codes/SCC/30.23.040\(11\)#30.23.040\(11\) "30.23.040(11)") | | | | | | | | | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Category | Zone | Max. Bldg. Height (ft)[27](https://snohomish.county.codes/SCC/30.23.040\(27\)#30.23.040\(27\) "30.23.040(27)"),[64](https://snohomish.county.codes/SCC/30.23.040\(27\)#30.23.040\(27\) "30.23.040(27)") | Min. [Lot Area](https://snohomish.county.codes/SCC/30.91L.130)[22](https://snohomish.county.codes/SCC/30.23.040\(22\)#30.23.040\(22\) "30.23.040(22)"),[29](https://snohomish.county.codes/SCC/30.23.040\(22\)#30.23.040\(22\) "30.23.040(22)") | Min. [Lot Width](https://snohomish.county.codes/SCC/30.91L.210) | Min. [Corner Lot](https://snohomish.county.codes/SCC/30.91L.140) Width | Commercial and Industrial Zones | Residential, Multifamily, and Rural Zones[33](https://snohomish.county.codes/SCC/30.23.040\(33\)#30.23.040\(33\) "30.23.040(33)") | Resource Lands[33](https://snohomish.county.codes/SCC/30.23.040\(33\)#30.23.040\(33\) "30.23.040(33)") | Water Bodies[12](https://snohomish.county.codes/SCC/30.23.040\(12\)#30.23.040\(12\) "30.23.040(12)") | Max. [Lot Coverage](https://snohomish.county.codes/SCC/30.91L.150)[8](https://snohomish.county.codes/SCC/30.23.040\(8\)#30.23.040\(8\) "30.23.040(8)") | |
| Ag[20](https://snohomish.county.codes/SCC/30.23.040\(20\)#30.23.040\(20\) "30.23.040(20)") | Forest[21](https://snohomish.county.codes/SCC/30.23.040\(21\)#30.23.040\(21\) "30.23.040(21)") | | | | | | | | | | |
| Resource | F[38](https://snohomish.county.codes/SCC/30.23.040\(38\)#30.23.040\(38\) "30.23.040(38)") | 45[6](https://snohomish.county.codes/SCC/30.23.040\(6\)#30.23.040\(6\) "30.23.040(6)") | 20 ac[3](https://snohomish.county.codes/SCC/30.23.040\(3\)#30.23.040\(3\) "30.23.040(3)") | 300 | 300 | 100[13](https://snohomish.county.codes/SCC/30.23.040\(13\)#30.23.040\(13\) "30.23.040(13)") | 100[13](https://snohomish.county.codes/SCC/30.23.040\(13\)#30.23.040\(13\) "30.23.040(13)") | 50 | 100[30](https://snohomish.county.codes/SCC/30.23.040\(30\)#30.23.040\(30\) "30.23.040(30)") | 25[13](https://snohomish.county.codes/SCC/30.23.040\(13\)#30.23.040\(13\) "30.23.040(13)") | 35% |
| F\&R[38](https://snohomish.county.codes/SCC/30.23.040\(38\)#30.23.040\(38\) "30.23.040(38)"),[39](https://snohomish.county.codes/SCC/30.23.040\(38\)#30.23.040\(38\) "30.23.040(38)") | 30[7](https://snohomish.county.codes/SCC/30.23.040\(7\)#30.23.040\(7\) "30.23.040(7)") | 200,000 sf[2](https://snohomish.county.codes/SCC/30.23.040\(2\)#30.23.040\(2\) "30.23.040(2)"),[23](https://snohomish.county.codes/SCC/30.23.040\(2\)#30.23.040\(2\) "30.23.040(2)") | 100 | 100 | 5 | 5 | 50 | 100[30](https://snohomish.county.codes/SCC/30.23.040\(30\)#30.23.040\(30\) "30.23.040(30)") | 25 | 35% | |
| A-10[37](https://snohomish.county.codes/SCC/30.23.040\(37\)#30.23.040\(37\) "30.23.040(37) Agriculture") , [40](https://snohomish.county.codes/SCC/30.23.040\(37\)#30.23.040\(37\) "30.23.040(37) Agriculture") | 45 | 10 ac | none | none | 5 | 5 | 50 | 100[30](https://snohomish.county.codes/SCC/30.23.040\(30\)#30.23.040\(30\) "30.23.040(30)") | 25 | none | |
| Rural | RRT-10 | 45 | 10 ac | 225 | 225 | 5 | 5 | 50 | 100[30](https://snohomish.county.codes/SCC/30.23.040\(30\)#30.23.040\(30\) "30.23.040(30)") | 25 | 35% |
| R-5[37](https://snohomish.county.codes/SCC/30.23.040\(37\)#30.23.040\(37\) "30.23.040(37) Agriculture"),[38](https://snohomish.county.codes/SCC/30.23.040\(37\)#30.23.040\(37\) "30.23.040(37) Agriculture"),[39](https://snohomish.county.codes/SCC/30.23.040\(37\)#30.23.040\(37\) "30.23.040(37) Agriculture"),[40](https://snohomish.county.codes/SCC/30.23.040\(37\)#30.23.040\(37\) "30.23.040(37) Agriculture"),[46](https://snohomish.county.codes/SCC/30.23.040\(37\)#30.23.040\(37\) "30.23.040(37) Agriculture") | 45 | 200,000 sf[2](https://snohomish.county.codes/SCC/30.23.040\(2\)#30.23.040\(2\) "30.23.040(2)"),[24](https://snohomish.county.codes/SCC/30.23.040\(2\)#30.23.040\(2\) "30.23.040(2)") | 165[24](https://snohomish.county.codes/SCC/30.23.040\(24\)#30.23.040\(24\) "30.23.040(24)") | 165[24](https://snohomish.county.codes/SCC/30.23.040\(24\)#30.23.040\(24\) "30.23.040(24)") | 5 | 5 | 50 | 100[30](https://snohomish.county.codes/SCC/30.23.040\(30\)#30.23.040\(30\) "30.23.040(30)") | 25 | 35% | |
| RD[38](https://snohomish.county.codes/SCC/30.23.040\(38\)#30.23.040\(38\) "30.23.040(38)") | 45 | 200,000 | 165 | 165 | 5 | 5 | 50 | 100[30](https://snohomish.county.codes/SCC/30.23.040\(30\)#30.23.040\(30\) "30.23.040(30)") | 25 | 35% | |
| RB | 35 | none | none | none | none | 50 | 50 | 100 | none | 35% | |
| CRC | 35[43](https://snohomish.county.codes/SCC/30.23.040\(43\)#30.23.040\(43\) "30.23.040(43)") | none | none | none | none | 25 | 50 | 100 | none | 50%[44](https://snohomish.county.codes/SCC/30.23.040\(44\)#30.23.040\(44\) "30.23.040(44)") 30%[45](https://snohomish.county.codes/SCC/30.23.040\(45\)#30.23.040\(45\) "30.23.040(45)") | |
| RFS | 35 | none | none | none | none | 50 | 50 | 100 | none | 35% | |
| RI | 50 | none | none | none | none | 100 | 100 | 100 | none | 35% | |
| Other | SA-1[37](https://snohomish.county.codes/SCC/30.23.040\(37\)#30.23.040\(37\) "30.23.040(37) Agriculture"),[39](https://snohomish.county.codes/SCC/30.23.040\(37\)#30.23.040\(37\) "30.23.040(37) Agriculture") | 35 | 1 ac/43,560 sf | 150 | 150 | 5 | 5 | 50 | 100 | 25 | 35% |
| RC[37](https://snohomish.county.codes/SCC/30.23.040\(37\)#30.23.040\(37\) "30.23.040(37) Agriculture"),[38](https://snohomish.county.codes/SCC/30.23.040\(37\)#30.23.040\(37\) "30.23.040(37) Agriculture"),[39](https://snohomish.county.codes/SCC/30.23.040\(37\)#30.23.040\(37\) "30.23.040(37) Agriculture"),[40](https://snohomish.county.codes/SCC/30.23.040\(37\)#30.23.040\(37\) "30.23.040(37) Agriculture") | 35 | 100,000 sf[24](https://snohomish.county.codes/SCC/30.23.040\(24\)#30.23.040\(24\) "30.23.040(24)") | 165[24](https://snohomish.county.codes/SCC/30.23.040\(24\)#30.23.040\(24\) "30.23.040(24)") | 165[24](https://snohomish.county.codes/SCC/30.23.040\(24\)#30.23.040\(24\) "30.23.040(24)") | 5 | 5 | 50 | 100[30](https://snohomish.county.codes/SCC/30.23.040\(30\)#30.23.040\(30\) "30.23.040(30)") | 25 | 35% | |
| RU[37](https://snohomish.county.codes/SCC/30.23.040\(37\)#30.23.040\(37\) "30.23.040(37) Agriculture"),[39](https://snohomish.county.codes/SCC/30.23.040\(37\)#30.23.040\(37\) "30.23.040(37) Agriculture") | 35 | [41](https://snohomish.county.codes/SCC/30.23.040\(41\)#30.23.040\(41\) "30.23.040(41)") | 60 | 65 | 5 | 5 | 50 | 100 | 25 | 35% | |
| R 20,000[37](https://snohomish.county.codes/SCC/30.23.040\(37\)#30.23.040\(37\) "30.23.040(37) Agriculture"),[39](https://snohomish.county.codes/SCC/30.23.040\(37\)#30.23.040\(37\) "30.23.040(37) Agriculture") | 25 | 20,000 sf | 85 | 90 | 5 | 5 | 50 | 100 | 25 | 35% | |
| R12,500[40](https://snohomish.county.codes/SCC/30.23.040\(40\)#30.23.040\(40\) "30.23.040(40)") | 30 | 12,500 sf | 75 | 80 | 5 | 5 | 50 | 100 | 25 | 35% | |
| WFB | 30 | 7,200 sf[23](https://snohomish.county.codes/SCC/30.23.040\(23\)#30.23.040\(23\) "30.23.040(23)") | 60 | 65 | 5 | 5 | 50 | 100 | 25 | 35% | |
| Urban (Non-Residential) | NB[1](https://snohomish.county.codes/SCC/30.23.040\(1\)#30.23.040\(1\) "30.23.040(1)") | 40[14](https://snohomish.county.codes/SCC/30.23.040\(14\)#30.23.040\(14\) "30.23.040(14)") | none | none | none | none | 10 | none | 100 | none | 65% |
| PCB[1](https://snohomish.county.codes/SCC/30.23.040\(1\)#30.23.040\(1\) "30.23.040(1)") | 40[14](https://snohomish.county.codes/SCC/30.23.040\(14\)#30.23.040\(14\) "30.23.040(14)") | none[19](https://snohomish.county.codes/SCC/30.23.040\(19\)#30.23.040\(19\) "30.23.040(19)") | none | none | none | 10 | none | 100 | none | none | |
| CB[1](https://snohomish.county.codes/SCC/30.23.040\(1\)#30.23.040\(1\) "30.23.040(1)") | 35[14](https://snohomish.county.codes/SCC/30.23.040\(14\)#30.23.040\(14\) "30.23.040(14)") | none | none | none | none | 10 | none | 100 | none | 50% | |
| GC[1](https://snohomish.county.codes/SCC/30.23.040\(1\)#30.23.040\(1\) "30.23.040(1)") | 45[14](https://snohomish.county.codes/SCC/30.23.040\(14\)#30.23.040\(14\) "30.23.040(14)") | none | none | none | none | 10 | none | 100 | none | 50% | |
| IP | 65 | none | none | none | none[17](https://snohomish.county.codes/SCC/30.23.040\(17\)#30.23.040\(17\) "30.23.040(17)") | 25[17](https://snohomish.county.codes/SCC/30.23.040\(17\)#30.23.040\(17\) "30.23.040(17)") | none | 100 | none | 50% | |
| BP[1](https://snohomish.county.codes/SCC/30.23.040\(1\)#30.23.040\(1\) "30.23.040(1)") | 50 | none[19](https://snohomish.county.codes/SCC/30.23.040\(19\)#30.23.040\(19\) "30.23.040(19)") | none | none | none | 25 | none | 100 | none | 35% | |
| LI | 50 | none | none | none | none | 50 | none | 100 | none | none | |
| HI | 65 | none | none | none | none | 50 | none | 100 | none | none | |
| UC[63](https://snohomish.county.codes/SCC/30.23.040\(63\)#30.23.040\(63\) "30.23.040(63)") | 90 | none | none | none | none | See SCC [30\.34A.040(2)](https://snohomish.county.codes/SCC/30.34A.040\(2\) "30.34A.040(2)") | none | 100 | none | none | |
| MUC | See SCC [30\.31G.020](https://snohomish.county.codes/SCC/30.31G.020 "30.31G.020 Bulk regulations") | none | none | none | none | 10 | none | 100 | none | none | |
(Amended by Amended Ord. 12-049, Oct. 3, 2012, Eff date Jan. 1, 2013; Amended by Amended Ord. 15-025, May 6, 2015, Eff date May 24, 2015; Amended by Amended Ord. 18-026, May 23, 2018, Eff date June 11, 2018; Amended by Ord. 20-020, June 24, 2020, Eff date July 11, 2020; Amended by Ord. 20-080, Dec. 16, 2020, Eff date Jan. 9, 2021; Amended by Amended Ord. 21-060, Oct. 6, 2021, Eff date Oct. 22, 2021; Amended by Amended Ord. 24-065, Dec. 4, 2024, Eff date Dec. 22, 2024).
This section is included in your selections.
(Added by Amended Ord. 12-049, Oct. 3, 2012, Eff date Jan. 1, 2013; Amended by Amended Ord. 15-025, May 6, 2015, Eff date May 24, 2015; Amended by Amended Ord. 16-029, May 11, 2016, Eff date May 23, 2016; Amended by Ord. 17-062, Oct. 18, 2017, Eff date Dec. 17, 2017; Amended by Amended Ord. 18-026, May 23, 2018, Eff date June 11, 2018; Amended by Amended Ord. 21-004, Mar. 15, 2021, Eff date Mar. 26, 2021; Amended by Amended Ord. 22-016, May 4, 2022, Eff date May 19, 2022; Amended by Amended Ord. 23-033, June 7, 2023, Eff date June 23, 2023; Amended by Ord. 24-060, Aug. 14, 2024, Eff date Aug. 26, 2024; Amended by Amended Ord. 25-033, Aug. 13, 2025, Eff date Sept. 6, 2025).
This section is included in your selections.
MR bulk requirements shall apply for all residential development permitted in the NB, PCB, CB, GC, and BP zones.
When subdivisionally described, the minimum [lot area](https://snohomish.county.codes/SCC/30.91L.130) shall be 1/128th of a section.
When subdivisionally described, the minimum [lot area](https://snohomish.county.codes/SCC/30.91L.130) shall be 1/32nd of a section.
In the LDMR zone, the maximum density shall be calculated based on 4,000 square feet of land per [dwelling unit](https://snohomish.county.codes/SCC/30.91D.530), except that [existing dwelling units](https://snohomish.county.codes/SCC/30.91D.535) may be retained as part of [new development](https://snohomish.county.codes/SCC/30.91N.044) in the LDMR zone without counting towards the maximum density.
In the MR zone the maximum density shall be calculated based on 2,000 square feet of land per [dwelling unit](https://snohomish.county.codes/SCC/30.91D.530), except that:
[Existing dwelling units](https://snohomish.county.codes/SCC/30.91D.535) may be retained as part of [new development](https://snohomish.county.codes/SCC/30.91N.044) in the MR zone without counting towards the maximum density.
For [sites](https://snohomish.county.codes/SCC/30.91S.340) zoned MR, NB, PCB, CB, or GC in the Southwest [UGA](https://snohomish.county.codes/SCC/30.91U.090) where any portion of the [site](https://snohomish.county.codes/SCC/30.91S.340) is within 2,000 feet of the edge of the [right-of-way](https://snohomish.county.codes/SCC/30.91R.200) of State Route 99 there is no maximum density, provided that either:
One or more [transfer of development rights](https://snohomish.county.codes/SCC/30.91T.063) ([TDR](https://snohomish.county.codes/SCC/30.91T.063)) credits must be used to realize the additional density under subsection [(5)(b)](https://snohomish.county.codes/SCC/30.23.040\(5\)\(b\) "30.23.040(5)(b)") of this section according to the requirements of chapter [30\.35A](https://snohomish.county.codes/SCC/30.35A "ch. 30.35A Transfer of Development Rights") SCC; or
Developments for which the [applicant](https://snohomish.county.codes/SCC/30.91A.220) provides documentation to the [director](https://snohomish.county.codes/SCC/30.91D.280) showing that the entire project has been granted a property tax exemption by the Washington State Department of Revenue under RCW [84\.36.041](https://snohomish.county.codes/WA/RCW/84.36.041), [84\.36.042](https://snohomish.county.codes/WA/RCW/84.36.042), [84\.36.043](https://snohomish.county.codes/WA/RCW/84.36.043), or [84\.36.560](https://snohomish.county.codes/WA/RCW/84.36.560) shall be exempt from the requirements of chapter [30\.35A](https://snohomish.county.codes/SCC/30.35A "ch. 30.35A Transfer of Development Rights") SCC.
Commercial [forestry](https://snohomish.county.codes/SCC/30.91F.480) [structures](https://snohomish.county.codes/SCC/30.91S.660) shall not exceed 65 feet in height.
Non-residential [structures](https://snohomish.county.codes/SCC/30.91S.660) shall not exceed 45 feet in height.
[Lot coverage](https://snohomish.county.codes/SCC/30.91L.150) includes all [buildings](https://snohomish.county.codes/SCC/30.91B.200) on the given [lot](https://snohomish.county.codes/SCC/30.91L.120).
[Sites](https://snohomish.county.codes/SCC/30.91S.340) zoned MR, NB, PCB, CB, or GC in the Southwest [UGA](https://snohomish.county.codes/SCC/30.91U.090) where any portion of the [site](https://snohomish.county.codes/SCC/30.91S.340) is within 2,000 feet of the edge of the [right-of-way](https://snohomish.county.codes/SCC/30.91R.200) of State Route 99 are exempt from minimum [lot area](https://snohomish.county.codes/SCC/30.91L.130), minimum [lot width](https://snohomish.county.codes/SCC/30.91L.210), and maximum [lot coverage](https://snohomish.county.codes/SCC/30.91L.150) requirements.
RESERVED for future use.
These [setbacks](https://snohomish.county.codes/SCC/30.91S.160) shall be measured from the property line.
Greater [setbacks](https://snohomish.county.codes/SCC/30.91S.160) than those listed may apply to areas subject to [Shoreline Management Program](https://snohomish.county.codes/SCC/30.91S.194) jurisdiction or [critical areas](https://snohomish.county.codes/SCC/30.91C.340) regulations in chapters [30\.62A](https://snohomish.county.codes/SCC/30.62A "ch. 30.62A Wetlands and Fish & Wildlife Habitat Conservation Areas"), [30\.62B](https://snohomish.county.codes/SCC/30.62B "ch. 30.62B Geologically Hazardous Areas"), [30\.62C](https://snohomish.county.codes/SCC/30.62C "ch. 30.62C Critical Aquifer Recharge Areas"), and [30\.67](https://snohomish.county.codes/SCC/30.67 "ch. 30.67 Shoreline Management Program") SCC. Some uses have special [setbacks](https://snohomish.county.codes/SCC/30.91S.160) identified in SCC [30\.23.110](https://snohomish.county.codes/SCC/30.23.110 "30.23.110 Special setbacks for certain uses").
The listed [setbacks](https://snohomish.county.codes/SCC/30.91S.160) apply where the adjacent property is zoned F. In all other cases, [setbacks](https://snohomish.county.codes/SCC/30.91S.160) are the same as in the R-8,400 zone. In the F zone, the [setbacks](https://snohomish.county.codes/SCC/30.91S.160) for residential [structures](https://snohomish.county.codes/SCC/30.91S.660) on 10 acres or less which were legally created prior to being zoned to F shall be the same as in the R-8,400 zone.
The maximum [building height](https://snohomish.county.codes/SCC/30.91B.240) is 75 feet for multifamily [structures](https://snohomish.county.codes/SCC/30.91S.660) on [sites](https://snohomish.county.codes/SCC/30.91S.340) zoned MR, NB, PCB, CB, and GC that are in the Southwest [UGA](https://snohomish.county.codes/SCC/30.91U.090) where any portion of the [site](https://snohomish.county.codes/SCC/30.91S.340) is within 2,000 feet of the edge of the [right-of-way](https://snohomish.county.codes/SCC/30.91R.200) of State Route 99. Subject to the requirements in SCC [30\.22.100](https://snohomish.county.codes/SCC/30.22.100 "30.22.100 Urban Zone Categories Use Matrix"), non-residential uses are allowed on the first floor of multifamily [structures](https://snohomish.county.codes/SCC/30.91S.660) on [sites](https://snohomish.county.codes/SCC/30.91S.340) zoned NB, PCB, CB, and GC that are in the Southwest [UGA](https://snohomish.county.codes/SCC/30.91U.090) where any portion of the [site](https://snohomish.county.codes/SCC/30.91S.340) is within 2,000 feet of the edge of the [right-of-way](https://snohomish.county.codes/SCC/30.91R.200) of State Route 99.
See SCC [30\.23.300](https://snohomish.county.codes/SCC/30.23.300 "30.23.300 Building separation for single-family detached, single-family attached, and duplex structures constructed in the LDMR and MR zones").
The maximum [building height](https://snohomish.county.codes/SCC/30.91B.240) is increased an additional five feet when the [building](https://snohomish.county.codes/SCC/30.91B.200) includes a [daylight basement](https://snohomish.county.codes/SCC/30.91B.036), except under conditions that would violate any other applicable requirements of Title [30](https://snohomish.county.codes/SCC/30 "Title 30 Unified Development Code") SCC, including the height limit requirements of the [Shoreline Management Program](https://snohomish.county.codes/SCC/30.91S.194) (SCC [30\.67.460](https://snohomish.county.codes/SCC/30.67.460 "30.67.460 Bulk standards")), [airport](https://snohomish.county.codes/SCC/30.91A.120) compatibility regulations (SCC [30\.32E.060](https://snohomish.county.codes/SCC/30.32E.060 "30.32E.060 Federal Aviation Administration review")), and urban residential design standards (chapter [30\.23A](https://snohomish.county.codes/SCC/30.23A "ch. 30.23A Urban Residential Design Standards") SCC).
In the IP zone there shall be an additional one foot [setback](https://snohomish.county.codes/SCC/30.91S.160) for every one foot of [building height](https://snohomish.county.codes/SCC/30.91B.240) over 45 feet.
RESERVED for future use.
See SCC [30\.31A.020(1)](https://snohomish.county.codes/SCC/30.31A.020\(1\) "30.31A.020(1)") and [(2)](https://snohomish.county.codes/SCC/30.31A.020\(2\) "30.31A.020(2)") which specify the minimum area of a tract of land necessary for PCB or BP zoning.
See additional [setback](https://snohomish.county.codes/SCC/30.91S.160) provisions for [dwellings](https://snohomish.county.codes/SCC/30.91D.490) located along the boundaries of designated [farmland](https://snohomish.county.codes/SCC/30.91F.140) contained in SCC [30\.32B.130](https://snohomish.county.codes/SCC/30.32B.130 "30.32B.130 Setbacks for new dwellings").
See additional [setback](https://snohomish.county.codes/SCC/30.91S.160) provisions for [structures](https://snohomish.county.codes/SCC/30.91S.660) located adjacent to [forest lands](https://snohomish.county.codes/SCC/30.91F.460), and/or on lands designated local forest or [commercial forest](https://snohomish.county.codes/SCC/30.91C.150) contained in SCC [30\.32A.110](https://snohomish.county.codes/SCC/30.32A.110 "30.32A.110 Siting of new structures: local forest land or adjacent to forest land").
The minimum [lot](https://snohomish.county.codes/SCC/30.91L.120) size for properties designated Rural Residential (RR)--10 (Resource Transition) on the [comprehensive plan](https://snohomish.county.codes/SCC/30.91C.230) shall be 10 acres.
Minimum [lot area](https://snohomish.county.codes/SCC/30.91L.130) requirements may be modified within [UGAs](https://snohomish.county.codes/SCC/30.91U.090) in accordance with SCC [30\.23.020](https://snohomish.county.codes/SCC/30.23.020 "30.23.020 Minimum net density for residential development in UGAs").
In [rural cluster subdivisions](https://snohomish.county.codes/SCC/30.91R.270) approved in accordance with the provisions of chapter [30\.41C](https://snohomish.county.codes/SCC/30.41C "ch. 30.41C Rural Cluster Subdivisions and Short Subdivisions") SCC, the minimum [lot area](https://snohomish.county.codes/SCC/30.91L.130) shall be as provided in SCC [30\.23.220](https://snohomish.county.codes/SCC/30.23.220 "30.23.220 Minimum lot area for rural clusters in RUTAs"). The maximum [lot area](https://snohomish.county.codes/SCC/30.91L.130) shall be 20,000 square feet or less when located in [rural/urban transition areas](https://snohomish.county.codes/SCC/30.91R.280).
RESERVED for future use.
RESERVED for future use.
See SCC [30\.23.050](https://snohomish.county.codes/SCC/30.23.050 "30.23.050 Height requirements, exceptions and measuring height") for height limit exceptions. See also SCC [30\.67.460](https://snohomish.county.codes/SCC/30.67.460 "30.67.460 Bulk standards") for height limit requirements within [shoreline jurisdiction](https://snohomish.county.codes/SCC/30.91S.193).
RESERVED for future use.
See SCC [30\.23.200](https://snohomish.county.codes/SCC/30.23.200 "30.23.200 Reductions to lot area") et seq. for additional [lot area](https://snohomish.county.codes/SCC/30.91L.130) requirements and exceptions.
SCC [30\.32A.120](https://snohomish.county.codes/SCC/30.32A.120 "30.32A.120 Siting of new structures: commercial forest land") (Siting of new [structures](https://snohomish.county.codes/SCC/30.91S.660): [Commercial forest](https://snohomish.county.codes/SCC/30.91C.150) land) requires an application for a new [structure](https://snohomish.county.codes/SCC/30.91S.660) on parcels designated [commercial forest](https://snohomish.county.codes/SCC/30.91C.150), but not within a designated [commercial forest](https://snohomish.county.codes/SCC/30.91C.150)\--[forest transition area](https://snohomish.county.codes/SCC/30.91F.490), to provide a minimum 500-foot [setback](https://snohomish.county.codes/SCC/30.91S.160), which shall be a resource protection area, from the property boundaries of adjacent [commercial forest](https://snohomish.county.codes/SCC/30.91C.150) lands except that if the size, shape, and/or physical [site](https://snohomish.county.codes/SCC/30.91S.340) constraints of an existing legal [lot](https://snohomish.county.codes/SCC/30.91L.120) do not allow a [setback](https://snohomish.county.codes/SCC/30.91S.160) of 500 feet, the new [structure](https://snohomish.county.codes/SCC/30.91S.660) shall maintain the maximum [setback](https://snohomish.county.codes/SCC/30.91S.160) possible, as determined by the [department](https://snohomish.county.codes/SCC/30.91D.110).
[Setback](https://snohomish.county.codes/SCC/30.91S.160) requirements for mineral [excavation](https://snohomish.county.codes/SCC/30.91E.230) and processing are in SCC [30\.23.110(27)](https://snohomish.county.codes/SCC/30.23.110\(27\) "30.23.110(27) Excavation and Processing of Minerals"). Performance standards and [permit](https://snohomish.county.codes/SCC/30.91P.140) requirements are in chapter [30\.32C](https://snohomish.county.codes/SCC/30.32C "ch. 30.32C Mineral Resource Lands") SCC.
For mineral [excavation](https://snohomish.county.codes/SCC/30.91E.230) and processing: The [site](https://snohomish.county.codes/SCC/30.91S.340) shall be a contiguous geographic area and have a size of not less than 10 acres, except in the case of subsurface shaft [excavations](https://snohomish.county.codes/SCC/30.91E.230), no minimum acreage is required, pursuant to SCC [30\.32C.020(1)](https://snohomish.county.codes/SCC/30.32C.020\(1\) "30.32C.020(1)").
See SCC Table [30\.28.050(4)(i)](https://snohomish.county.codes/SCC/30.28.050\(4\)\(i\)#Tab30.28.050\(4\)\(i\) "Table 30.28.050(4)(i) Home Occupation Minimum Setbacks & Maximum Allowed Area") for [setback](https://snohomish.county.codes/SCC/30.91S.160) requirements for [structures](https://snohomish.county.codes/SCC/30.91S.660) containing a [home occupation](https://snohomish.county.codes/SCC/30.91H.130).
RESERVED for future use.
See chapter [30\.31E](https://snohomish.county.codes/SCC/30.31E "ch. 30.31E Townhouse (T) Zone") SCC, for more complete information on the [Townhouse](https://snohomish.county.codes/SCC/30.91D.525) Zone height, [setback](https://snohomish.county.codes/SCC/30.91S.160), and [lot coverage](https://snohomish.county.codes/SCC/30.91L.150) requirements.
RESERVED for future use.
All [structures](https://snohomish.county.codes/SCC/30.91S.660) used for housing or feeding animals, not including household pets, shall be located at least 30 feet from all property lines.
There shall be no [subdivision](https://snohomish.county.codes/SCC/30.91S.710) of land designated [commercial forest](https://snohomish.county.codes/SCC/30.91C.150) in the [comprehensive plan](https://snohomish.county.codes/SCC/30.91C.230) except to allow installation of communication and [utility](https://snohomish.county.codes/SCC/30.91U.110) facilities if all the following requirements are met:
The facility cannot suitably be located on undesignated land;
The installation cannot be accomplished without [subdivision](https://snohomish.county.codes/SCC/30.91S.710);
The facility is to be located on the lowest feasible [grade](https://snohomish.county.codes/SCC/30.91G.070) of [forest land](https://snohomish.county.codes/SCC/30.91F.460); and
The facility removes as little land as possible from [timber](https://snohomish.county.codes/SCC/30.91T.054.2) production.
On parcels designated [commercial forest](https://snohomish.county.codes/SCC/30.91C.150), but not within a designated [commercial forest](https://snohomish.county.codes/SCC/30.91C.150)\--[forest transition area](https://snohomish.county.codes/SCC/30.91F.490), establish and maintain a minimum 500-foot [setback](https://snohomish.county.codes/SCC/30.91S.160), which shall be a resource protection area, from the property boundaries of adjacent [commercial forest](https://snohomish.county.codes/SCC/30.91C.150) lands except when the size, shape, and/or physical [site](https://snohomish.county.codes/SCC/30.91S.340) constraints of an existing legal [lot](https://snohomish.county.codes/SCC/30.91L.120) do not allow a [setback](https://snohomish.county.codes/SCC/30.91S.160) of 500 feet, the new [structure](https://snohomish.county.codes/SCC/30.91S.660) shall maintain the maximum [setback](https://snohomish.county.codes/SCC/30.91S.160) possible as provided in SCC [30\.32A.120](https://snohomish.county.codes/SCC/30.32A.120 "30.32A.120 Siting of new structures: commercial forest land").
Land designated local commercial [farmland](https://snohomish.county.codes/SCC/30.91F.140) shall not be divided into [lots](https://snohomish.county.codes/SCC/30.91L.120) of less than 10 acres unless a properly executed deed restriction which runs with the land and which provides that the land divided is to be used exclusively for agricultural purposes and specifically not for a [dwelling](https://snohomish.county.codes/SCC/30.91D.490)(s) is recorded with the Snohomish County auditor.
Minimum [lot area](https://snohomish.county.codes/SCC/30.91L.130) in the rural use zone shall be the minimum allowed by the zone identified as the implementing zone by the [comprehensive plan](https://snohomish.county.codes/SCC/30.91C.230) for the plan designation applied to the [subject property](https://snohomish.county.codes/SCC/30.91S.740). Where more than one implementing zone is identified for the same designation, the minimum [lot](https://snohomish.county.codes/SCC/30.91L.120) size shall be that of the zone allowing the smallest [lot](https://snohomish.county.codes/SCC/30.91L.120) size.
RESERVED for future use.
Additional bulk requirements may apply. Refer to SCC [30\.31F.100](https://snohomish.county.codes/SCC/30.31F.100 "30.31F.100 General performance standards") and [30\.31F.140](https://snohomish.county.codes/SCC/30.31F.140 "30.31F.140 Clearview rural commercial zone performance standards").
The 50 percent maximum [lot coverage](https://snohomish.county.codes/SCC/30.91L.150) limitation applies solely to the portion of the area within the CRC [comprehensive plan](https://snohomish.county.codes/SCC/30.91C.230) designation and zone that is centered at 180th [Street](https://snohomish.county.codes/SCC/30.91S.650) SE and SR 9, generally extending between the intersection of 172nd [Street](https://snohomish.county.codes/SCC/30.91S.650)/SR 9 to just south of 184th [Street](https://snohomish.county.codes/SCC/30.91S.650)/SR 9, as indicated on the county’s FLUM and [zoning map](https://snohomish.county.codes/SCC/30.91Z.040).
The 30 percent maximum [lot coverage](https://snohomish.county.codes/SCC/30.91L.150) limitation applies solely to the portion area located within the CRC [comprehensive plan](https://snohomish.county.codes/SCC/30.91C.230) designation and zone that is centered at State Route (SR) 9 and 164th [Street](https://snohomish.county.codes/SCC/30.91S.650) SE, as indicated on the county’s Future Land Use Map (FLUM) and [zoning map](https://snohomish.county.codes/SCC/30.91Z.040).
Additional [setbacks](https://snohomish.county.codes/SCC/30.91S.160) may apply to development within a [rural cluster subdivision](https://snohomish.county.codes/SCC/30.91R.270). Refer to chapter [30\.41C](https://snohomish.county.codes/SCC/30.41C "ch. 30.41C Rural Cluster Subdivisions and Short Subdivisions") SCC. Residential [subdivision](https://snohomish.county.codes/SCC/30.91S.710) is restricted pursuant to SCC [30\.32C.050](https://snohomish.county.codes/SCC/30.32C.050 "30.32C.050 Provisions for subdivision of designated mineral resource lands and lands adjacent to mineral resource lands"). Uses are restricted where the R-5 zone coincides with the Mineral Resource Overlay (MRO) to prevent development which would preclude future access to the mineral resources.
RESERVED for future use.
RESERVED for future use.
RESERVED for future use.
RESERVED for future use.
RESERVED for future use.
RESERVED for future use.
RESERVED for future use.
A [split parcel](https://snohomish.county.codes/SCC/30.91S.545) may be subdivided along the [UGA boundary](https://snohomish.county.codes/SCC/30.91U.091) line using one of three methods. First, a [split parcel](https://snohomish.county.codes/SCC/30.91S.545) may be subdivided along the [UGA boundary](https://snohomish.county.codes/SCC/30.91U.091) line into two [lots](https://snohomish.county.codes/SCC/30.91L.120), whereby one [lot](https://snohomish.county.codes/SCC/30.91L.120) remains within the [UGA](https://snohomish.county.codes/SCC/30.91U.090) and the other [lot](https://snohomish.county.codes/SCC/30.91L.120) remains outside the [UGA](https://snohomish.county.codes/SCC/30.91U.090), pursuant to SCC [30\.41B.010(5)](https://snohomish.county.codes/SCC/30.41B.010\(5\) "30.41B.010(5)"). Second, a [split parcel](https://snohomish.county.codes/SCC/30.91S.545) may be subdivided as part of a [short plat](https://snohomish.county.codes/SCC/30.91S.270) application, pursuant to SCC [30\.41B.010(8)](https://snohomish.county.codes/SCC/30.41B.010\(8\) "30.41B.010(8)"). Finally, a [split parcel](https://snohomish.county.codes/SCC/30.91S.545) may be subdivided as part of a plat application, pursuant to SCC [30\.41A.010(3)](https://snohomish.county.codes/SCC/30.41A.010\(3\) "30.41A.010(3)").
See SCC [30\.42E.100(9)(c)](https://snohomish.county.codes/SCC/30.42E.100\(9\)\(c\) "30.42E.100(9)(c)").
RESERVED for future use.
RESERVED for future use.
RESERVED for future use.
Relationship of [setback](https://snohomish.county.codes/SCC/30.91S.160) to [building height](https://snohomish.county.codes/SCC/30.91B.240):
The minimum [setback](https://snohomish.county.codes/SCC/30.91S.160) requirements are dependent on the heights of the [building](https://snohomish.county.codes/SCC/30.91B.200) as specified in this column. To meet the [setback](https://snohomish.county.codes/SCC/30.91S.160) requirements, [buildings](https://snohomish.county.codes/SCC/30.91B.200) over 20 feet in height must either:
Set the entire [building](https://snohomish.county.codes/SCC/30.91B.200) back the minimum [setback](https://snohomish.county.codes/SCC/30.91S.160) distance; or
[Setback](https://snohomish.county.codes/SCC/30.91S.160) those portions of the [building](https://snohomish.county.codes/SCC/30.91B.200) exceeding 20 feet in height to the minimum [setback](https://snohomish.county.codes/SCC/30.91S.160) distance, as illustrated in Figure [30\.23.040(59)](https://snohomish.county.codes/SCC/30.23.040\(59\)\(b\)#Fig30.23.040\(59\) "Fig. 30.23.040(59) Relationship of Building Height to Setback").
"A" represents the minimum [setback](https://snohomish.county.codes/SCC/30.91S.160) distance for the portion of a [building](https://snohomish.county.codes/SCC/30.91B.200) less than or equal to 20 feet in height.
"B" Represents the minimum [setback](https://snohomish.county.codes/SCC/30.91S.160) distance for the portion of a [building](https://snohomish.county.codes/SCC/30.91B.200) greater than 20 feet in height.
Note: An [applicant](https://snohomish.county.codes/SCC/30.91A.220) may choose one or more [setbacks](https://snohomish.county.codes/SCC/30.91S.160) for [buildings](https://snohomish.county.codes/SCC/30.91B.200) greater than 20 feet in height if multiple [setback](https://snohomish.county.codes/SCC/30.91S.160) requirements apply to the [building height](https://snohomish.county.codes/SCC/30.91B.240). For example, a [building](https://snohomish.county.codes/SCC/30.91B.200) that is 45 feet in height may have a 20-foot [setback](https://snohomish.county.codes/SCC/30.91S.160) for the portion of the [building](https://snohomish.county.codes/SCC/30.91B.200) between 20 and 30 feet in height, and 25-foot [setback](https://snohomish.county.codes/SCC/30.91S.160) for the portion of the [building](https://snohomish.county.codes/SCC/30.91B.200) greater than 30 feet in height.
[Setback](https://snohomish.county.codes/SCC/30.91S.160) those portions of the [building](https://snohomish.county.codes/SCC/30.91B.200) exceeding 45 feet in height from the minimum side and rear yard [setbacks](https://snohomish.county.codes/SCC/30.91S.160) by one additional foot for each additional two feet of [building height](https://snohomish.county.codes/SCC/30.91B.240).
Single-[family](https://snohomish.county.codes/SCC/30.91F.080) detached, single-[family](https://snohomish.county.codes/SCC/30.91F.080) attached, and [duplex](https://snohomish.county.codes/SCC/30.91D.480) [structures](https://snohomish.county.codes/SCC/30.91S.660) shall comply with the minimum [setbacks](https://snohomish.county.codes/SCC/30.91S.160) required in the R-8,400 zone.
Fencing between single-[family](https://snohomish.county.codes/SCC/30.91F.080) detached, single-[family](https://snohomish.county.codes/SCC/30.91F.080) attached, and [duplex](https://snohomish.county.codes/SCC/30.91D.480) [structures](https://snohomish.county.codes/SCC/30.91S.660) shall be:
Prohibited in the area that is within five feet of a third [story](https://snohomish.county.codes/SCC/30.91S.630) ingress/egress window so ladder access to the third floor window is not impeded; or
Limited to either vegetative, wood, block, concrete or metal that does not exceed 42 inches in height.
Additional [building height](https://snohomish.county.codes/SCC/30.91B.240) up to a maximum of 125 feet may be allowed under certain circumstances as provided for in SCC [30\.34A.040(1)](https://snohomish.county.codes/SCC/30.34A.040\(1\) "30.34A.040(1)").
If located within an [airport compatibility area](https://snohomish.county.codes/SCC/30.91A.126), [building height](https://snohomish.county.codes/SCC/30.91B.240) is subject to the requirements of SCC [30\.32E.060](https://snohomish.county.codes/SCC/30.32E.060 "30.32E.060 Federal Aviation Administration review").
[Townhouse](https://snohomish.county.codes/SCC/30.91D.525) and [mixed townhouse development](https://snohomish.county.codes/SCC/30.91M.137) may achieve the following density:
For the R-7,200 zone, the maximum density shall be calculated based on 7,200 square feet of land per [dwelling unit](https://snohomish.county.codes/SCC/30.91D.530), but the maximum density may be increased up to 50 percent. [Existing dwelling units](https://snohomish.county.codes/SCC/30.91D.535) may be retained as part of [new development](https://snohomish.county.codes/SCC/30.91N.044) without counting towards the maximum density.
For the LDMR and MR zones, the maximum density established under subsections [(4)](https://snohomish.county.codes/SCC/30.23.040\(4\) "30.23.040(4)") and [(5)](https://snohomish.county.codes/SCC/30.23.040\(5\) "30.23.040(5)") of this section may be increased up to 50 percent.
Maximum density shall be determined by rounding up to the next whole unit when a fraction of a unit is equal to five-tenths or greater.
The maximum [lot coverage](https://snohomish.county.codes/SCC/30.91L.150) in [townhouse](https://snohomish.county.codes/SCC/30.91D.525) and [mixed townhouse developments](https://snohomish.county.codes/SCC/30.91M.137) is 50 percent in the LDMR zone and 50 percent in the MR zone except [sites](https://snohomish.county.codes/SCC/30.91S.340) zoned MR where any portion of the [site](https://snohomish.county.codes/SCC/30.91S.340) is within 2,000 feet of the western edge of the [right-of-way](https://snohomish.county.codes/SCC/30.91R.200) of State Route 99 or within 800 feet of the eastern edge of the [right-of-way](https://snohomish.county.codes/SCC/30.91R.200) of State Route 99, and the [site](https://snohomish.county.codes/SCC/30.91S.340) is east of State Route 525 are exempt from maximum [lot coverage](https://snohomish.county.codes/SCC/30.91L.150) requirements consistent with SCC [30\.23.040(9)](https://snohomish.county.codes/SCC/30.23.040\(9\) "30.23.040(9)").
See SCC [30\.23.310](https://snohomish.county.codes/SCC/30.23.310 "30.23.310 Building separation for buildings taller than 30 feet in the R-7,200 zone").
[Co-living dwelling](https://snohomish.county.codes/SCC/30.91D.492) density is calculated at the rate of one-quarter of a [dwelling unit](https://snohomish.county.codes/SCC/30.91D.530) per sleeping unit. (Added by Amended Ord. 02-064, Dec. 9, 2002, Eff date Feb. 1, 2003; Amended by Ord. 05-094, Sept. 14, 2005, Eff date Sept. 29, 2005; Amended by Amended Ord. 05-083, Dec. 21, 2005, Eff date Feb. 1, 2006; Amended by Amended Ord. 05-087, Dec. 21, 2005, Eff date Feb. 1, 2006; Amended by Amended Ord. 06-004, Mar. 15, 2006, Eff date Apr. 4, 2006; Amended by Ord. 06-062, Oct. 4, 2006, Eff date Oct. 15, 2006; Amended by Ord. 06-075, Oct. 4, 2006, Eff date Oct. 15, 2006; Amended by Amended Ord. 07-022, Apr. 23, 2007, Eff date June 4, 2007; Amended by Amended Ord. 07-029, Apr. 25, 2007, Eff date May 10, 2007; Amended by Amended Ord. 06-061, Aug. 1, 2007, Eff date Oct. 1, 2007; Amended by Amended Ord. 07-084, Sept. 5, 2007, Eff date Sept. 21, 2007; Amended by Amended Ord. 08-101, Jan. 21, 2009, Eff date Apr. 21, 2009; Amended by Amended Ord. 08-087, Feb. 4, 2009, Eff date Apr. 5, 2009; Amended by Amended Ord. 09-079, May 12, 2010, Eff date May 29, 2010; Amended by Amended Ord. 10-072, Sept. 8, 2010, Eff date Oct. 3, 2010; Amended by Amended Ord. 12-018, May 2, 2012, Eff date May 21, 2012; Amended by Amended Ord. 12-025, June 6, 2012, Eff date July 27, 2012; Amended by Amended Ord. 12-049, Oct. 3, 2012, Eff date Jan. 1, 2013; Amended by Amended Ord. 15-025, May 6, 2015, Eff date May 24, 2015; Amended by Ord. 15-103, Jan. 11, 2016, Eff date Jan. 22, 2016; Amended by Amended Ord. 16-029, May 11, 2016, Eff date May 23, 2016; Amended by Amended Ord. 17-004, May 10, 2017, Eff date June 1, 2017; Amended by Ord. 17-062, Oct. 18, 2017, Eff date Dec. 17, 2017; Amended by Amended Ord. 18-026, May 23, 2018, Eff date June 11, 2018; Amended by Ord. 20-020, June 24, 2020, Eff date July 11, 2020; Amended by Ord. 20-080, Dec. 16, 2020, Eff date Jan. 9, 2021; Amended by Amended Ord. 21-004, Mar. 15, 2021, Eff date Mar. 26, 2021; Amended by Amended Ord. 21-060, Oct. 6, 2021, Eff date Oct. 22, 2021; Amended by Amended Ord. 22-016, May 4, 2022, Eff date May 19, 2022; Amended by Amended Ord. 23-033, June 7, 2023, Eff date June 23, 2023; Amended by Amended Ord. 24-028, Dec. 4, 2024, Eff date Dec. 22, 2024; Amended by Amended Ord. 25-033, Aug. 13, 2025, Eff date Sept. 6, 2025; Amended by Ord. 25-057, Dec. 3, 2025, Eff date Dec. 13, 2025).
This section is included in your selections.
**Note:** All minimum [setbacks](https://snohomish.county.codes/SCC/30.91S.160) are measured in feet.
(Added by Amended Ord. 12-049, Oct. 3, 2012, Eff date Jan. 1, 2013; Amended by Ord. 17-062, Oct. 18, 2017, Eff date Dec. 17, 2017; Amended by Amended Ord. 17-061, Mar. 28, 2018, Eff date May 27, 2018; Amended by Amended Ord. 18-026, May 23, 2018, Eff date June 11, 2018; Amended by Ord. 20-080, Dec. 16, 2020, Eff date Jan. 9, 2021; Amended by Amended Ord. 24-065, Dec. 4, 2024, Eff date Dec. 22, 2024).
This section is included in your selections.
(Added by Amended Ord. 12-049, Oct. 3, 2012, Eff date Jan. 1, 2013).
This section is included in your selections.
(All minimum setbacks are measured in feet)
(Added by Amended Ord. 12-049, Oct. 3, 2012, Eff date Jan. 1, 2013; Amended by Amended Ord. 21-060, Oct. 6, 2021, Eff date Oct. 22, 2021).
This section is included in your selections.
(All minimum setbacks are measured in feet)
(Added by Amended Ord. 12-049, Oct. 3, 2012, Eff date Jan. 1, 2013).
This section is included in your selections.
The [setback](https://snohomish.county.codes/SCC/30.91S.160) shall be measured from the edge of the tract or [easement](https://snohomish.county.codes/SCC/30.91E.030). Where no tract or [easement](https://snohomish.county.codes/SCC/30.91E.030) is established, the measurement shall be made from the edge of the [road network element](https://snohomish.county.codes/SCC/30.91R.215).
The [setback](https://snohomish.county.codes/SCC/30.91S.160) may be reduced to the [setback](https://snohomish.county.codes/SCC/30.91S.160) required for a [structure](https://snohomish.county.codes/SCC/30.91S.660) if a vehicle entering the [covered parking structure](https://snohomish.county.codes/SCC/30.91C.335) can turn around inside the [covered parking structure](https://snohomish.county.codes/SCC/30.91C.335) and exit without having to back out.
These [setbacks](https://snohomish.county.codes/SCC/30.91S.160) shall be measured from the edge of the [right-of-way](https://snohomish.county.codes/SCC/30.91R.200).
Applies to public [rights-of-way](https://snohomish.county.codes/SCC/30.91R.200) under 60 feet that are not included in development subject to the recorded [subdivision](https://snohomish.county.codes/SCC/30.91S.710), [short subdivision](https://snohomish.county.codes/SCC/30.91S.280), or [binding site plan](https://snohomish.county.codes/SCC/30.91B.120). These [setbacks](https://snohomish.county.codes/SCC/30.91S.160) shall be measured from the centerline of the [right-of-way](https://snohomish.county.codes/SCC/30.91R.200).
The [county engineer](https://snohomish.county.codes/SCC/30.91C.320) may require the [front lot line](https://snohomish.county.codes/SCC/30.91L.170) [setback](https://snohomish.county.codes/SCC/30.91S.160) from a public [right-of-way](https://snohomish.county.codes/SCC/30.91R.200) be measured from a [right-of-way](https://snohomish.county.codes/SCC/30.91R.200) reservation line established in accordance with SCC [30\.24.140(1)](https://snohomish.county.codes/SCC/30.24.140\(1\) "30.24.140(1)"), when:
The [right-of-way](https://snohomish.county.codes/SCC/30.91R.200) width is less than 60 feet in width and determined inadequate by the [county engineer](https://snohomish.county.codes/SCC/30.91C.320) based on:
The [comprehensive plan](https://snohomish.county.codes/SCC/30.91C.230) [arterial](https://snohomish.county.codes/SCC/30.91A.270) circulation map; or
An adopted design report, roadway design or [right-of-way](https://snohomish.county.codes/SCC/30.91R.200) plan; and
The [right-of-way](https://snohomish.county.codes/SCC/30.91R.200) is not located in a recorded [subdivision](https://snohomish.county.codes/SCC/30.91S.710), [short subdivision](https://snohomish.county.codes/SCC/30.91S.280) or [binding site plan](https://snohomish.county.codes/SCC/30.91B.120).
Single-[family](https://snohomish.county.codes/SCC/30.91F.080) detached, single-[family](https://snohomish.county.codes/SCC/30.91F.080) attached, and [duplex](https://snohomish.county.codes/SCC/30.91D.480) [structures](https://snohomish.county.codes/SCC/30.91S.660) constructed in the LDMR and MR zones shall use the minimum [setbacks](https://snohomish.county.codes/SCC/30.91S.160) required in the R-8,400 zone.
[Structures](https://snohomish.county.codes/SCC/30.91S.660) over two [stories](https://snohomish.county.codes/SCC/30.91S.630), other than single-[family](https://snohomish.county.codes/SCC/30.91F.080) detached [structures](https://snohomish.county.codes/SCC/30.91S.660), shall increase the [setbacks](https://snohomish.county.codes/SCC/30.91S.160) by three feet; provided, that the additional [setback](https://snohomish.county.codes/SCC/30.91S.160) shall only be required as an upper floor [setback](https://snohomish.county.codes/SCC/30.91S.160) for portions of residential [structures](https://snohomish.county.codes/SCC/30.91S.660) above 20 feet in height in the same manner as SCC [30\.23.040(59)](https://snohomish.county.codes/SCC/30.23.040\(59\) "30.23.040(59)").
In the IP zone there shall be an additional one foot [setback](https://snohomish.county.codes/SCC/30.91S.160) for every one foot of [building height](https://snohomish.county.codes/SCC/30.91B.240) over 45 feet.
In the F zone, the [setbacks](https://snohomish.county.codes/SCC/30.91S.160) for residential [structures](https://snohomish.county.codes/SCC/30.91S.660) on [lots](https://snohomish.county.codes/SCC/30.91L.120) 10 acres or less, where the [lot](https://snohomish.county.codes/SCC/30.91L.120) was legally created prior to being zoned to F, shall be the same as in the R-5 zone.
See SCC [30\.23.120](https://snohomish.county.codes/SCC/30.23.120 "30.23.120 Front setback exceptions for new structures from existing road network elements") for front [setback](https://snohomish.county.codes/SCC/30.91S.160) exceptions from [road network elements](https://snohomish.county.codes/SCC/30.91R.215).
See SCC [30\.41C.130](https://snohomish.county.codes/SCC/30.41C.130 "30.41C.130 Rural cluster-bulk regulations") and [30\.41C.140](https://snohomish.county.codes/SCC/30.41C.140 "30.41C.140 Bulk regulations and interim open space for rural clusters in the RUTA") for additional front [setback](https://snohomish.county.codes/SCC/30.91S.160) requirements for [lots](https://snohomish.county.codes/SCC/30.91L.120) created through the [rural cluster subdivision](https://snohomish.county.codes/SCC/30.91R.270) provisions of chapter [30\.41C](https://snohomish.county.codes/SCC/30.41C "ch. 30.41C Rural Cluster Subdivisions and Short Subdivisions") SCC.
See SCC [30\.23.040(59)](https://snohomish.county.codes/SCC/30.23.040\(59\) "30.23.040(59)").
In a [townhouse](https://snohomish.county.codes/SCC/30.91D.525) or [mixed townhouse development](https://snohomish.county.codes/SCC/30.91M.137), [setbacks](https://snohomish.county.codes/SCC/30.91S.160) for residential [structures](https://snohomish.county.codes/SCC/30.91S.660) may be reduced to a minimum of five feet from a public or [private road](https://snohomish.county.codes/SCC/30.91R.230).
In a [townhouse](https://snohomish.county.codes/SCC/30.91D.525) or [mixed townhouse development](https://snohomish.county.codes/SCC/30.91M.137), [setbacks](https://snohomish.county.codes/SCC/30.91S.160) for entrances to [covered parking structures](https://snohomish.county.codes/SCC/30.91C.335) may be reduced under subsections [(14)(a)](https://snohomish.county.codes/SCC/30.23.049\(14\)\(a\) "30.23.049(14)(a)") and [(b)](https://snohomish.county.codes/SCC/30.23.049\(14\)\(b\) "30.23.049(14)(b)") of this section, except that such entrances to [covered parking structures](https://snohomish.county.codes/SCC/30.91C.335) shall be restricted under subsection [(14)(c)](https://snohomish.county.codes/SCC/30.23.049\(14\)\(c\) "30.23.049(14)(c)") of this section:
A minimum of five feet from a public or [private road](https://snohomish.county.codes/SCC/30.91R.230).
A minimum of zero feet from a [drive aisle](https://snohomish.county.codes/SCC/30.91D.455), [shared court](https://snohomish.county.codes/SCC/30.91S.175), [shared driveway](https://snohomish.county.codes/SCC/30.91D.465), or [alley](https://snohomish.county.codes/SCC/30.91A.150).
The vehicular entrance to a [covered parking structure](https://snohomish.county.codes/SCC/30.91C.335) shall not be located between nine and 19 feet from an abutting [road network element](https://snohomish.county.codes/SCC/30.91R.215). An entrance to a [covered parking structure](https://snohomish.county.codes/SCC/30.91C.335) that is located at least 19 feet from the abutting [road network element](https://snohomish.county.codes/SCC/30.91R.215) may have upper-[story](https://snohomish.county.codes/SCC/30.91S.630) floors project up to four feet horizontally into the area where an entrance to a [covered parking structure](https://snohomish.county.codes/SCC/30.91C.335) is prohibited, and except as otherwise allowed under SCC [30\.23.115](https://snohomish.county.codes/SCC/30.23.115 "30.23.115 Setback exceptions for minor architectural features") for minor architectural features.
The [setback](https://snohomish.county.codes/SCC/30.91S.160) from a [drive aisle](https://snohomish.county.codes/SCC/30.91D.455) that provides access to the rear of a [lot](https://snohomish.county.codes/SCC/30.91L.120), [structure](https://snohomish.county.codes/SCC/30.91S.660), or use, and is less than 20 feet in width, shall be a minimum of four feet. (Added by Amended Ord. 12-049, Oct. 3, 2012, Eff date Jan. 1, 2013; Amended by Ord. 17-062, Oct. 18, 2017, Eff date Dec. 17, 2017; Amended by Amended Ord. 17-061, Mar. 28, 2018, Eff date May 27, 2018; Amended by Ord. 25-057, Dec. 3, 2025, Eff date Dec. 13, 2025).
This section is included in your selections.
The maximum height of [buildings](https://snohomish.county.codes/SCC/30.91B.200) and [structures](https://snohomish.county.codes/SCC/30.91S.660) shall be pursuant to the height standards in SCC Tables [30\.23.030](https://snohomish.county.codes/SCC/30.23.030#Tab30.23.030 "Table 30.23.030 Rural, Resource, Urban (Non-Residential) and Other Zone Categories Bulk Matrix") and [30\.23.032](https://snohomish.county.codes/SCC/30.23.032#Tab30.23.032 "Table 30.23.032 Urban Residential Zones Bulk Matrix"), except as provided in subsection [(2)](https://snohomish.county.codes/SCC/30.23.050\(2\) "30.23.050(2)") of this section.
The following shall be exempt from the maximum height standards, except [structures](https://snohomish.county.codes/SCC/30.91S.660) and uses located in an [airport compatibility area](https://snohomish.county.codes/SCC/30.91A.126) are subject to the height review requirements of SCC [30\.32E.060](https://snohomish.county.codes/SCC/30.32E.060 "30.32E.060 Federal Aviation Administration review"):
Tanks and bunkers, turrets, [church](https://snohomish.county.codes/SCC/30.91C.085) spires, belfries, domes, monuments, chimneys, water [towers](https://snohomish.county.codes/SCC/30.91T.058), fire and hose [towers](https://snohomish.county.codes/SCC/30.91T.058), observation [towers](https://snohomish.county.codes/SCC/30.91T.058), stadiums, smokestacks, flag poles, [towers](https://snohomish.county.codes/SCC/30.91T.058) and masts used to support commercial radio and television antennas, bulkheads, water tanks, scenery lofts, cooling [towers](https://snohomish.county.codes/SCC/30.91T.058), grain elevators, gravel and cement tanks and bunkers, and drive-in theater projection [screens](https://snohomish.county.codes/SCC/30.91S.070), provided they are set back at least 50 feet from any adjoining [lot](https://snohomish.county.codes/SCC/30.91L.120) line;
[Towers](https://snohomish.county.codes/SCC/30.91T.058) and masts used to support [private antennas](https://snohomish.county.codes/SCC/30.91A.200), provided they meet the minimum [setback](https://snohomish.county.codes/SCC/30.91S.160) of the zoning district in which they are located, and the horizontal array of the antennas does not intersect the vertical plane of the property line;
[Towers](https://snohomish.county.codes/SCC/30.91T.058), masts or poles supporting electric [utility](https://snohomish.county.codes/SCC/30.91U.110), telephone or other communication lines;
Schools and educational institutions; provided, that:
The use was approved as part of a [conditional use](https://snohomish.county.codes/SCC/30.91C.240) [permit](https://snohomish.county.codes/SCC/30.91P.140);
A maximum [building height](https://snohomish.county.codes/SCC/30.91B.240) of 55 feet is not exceeded; and
Any portion of any [building](https://snohomish.county.codes/SCC/30.91B.200) exceeding the underlying zoning maximum height standard is set back at least 50 feet from all of the [site](https://snohomish.county.codes/SCC/30.91S.340)’s perimeter [lot](https://snohomish.county.codes/SCC/30.91L.120) lines;
Aircraft hangars located within any industrial zone; provided, that the hangar is set back at least 100 feet from any non-industrial zone;
Elevator hoistways, provided they do not exceed the maximum [building height](https://snohomish.county.codes/SCC/30.91B.240) of the underlying zone by more than 30 percent or 15 feet, whichever is less; and
Rooftop mechanical equipment screening, including extended parapet walls, mansards, or other roof forms that are integrated with the architecture of the [building](https://snohomish.county.codes/SCC/30.91B.200), provided it does not exceed the maximum [building height](https://snohomish.county.codes/SCC/30.91B.240) of the underlying zone by more than 30 percent or 15 feet, whichever is less.
[Building height](https://snohomish.county.codes/SCC/30.91B.240) shall be measured as the vertical distance from the average final [grade](https://snohomish.county.codes/SCC/30.91G.070) to the highest point of the roof surface, based on the following roof types:
For a flat or minimally pitched (less than 1:12) roof use the distance to the tallest point of the roof;
For a mansard roof, use the distance to the deck line; or
For a gable, hip or pitched, gambrel, vaulted, shed, or A-frame roof, use the distance to the midpoint of the pitch of the roof, measured from the peak of the roof to that point vertically above the highest exterior wall, including dormer walls.
Different roof types and their midpoints are shown in Figure [30\.23.050(4)](https://snohomish.county.codes/SCC/30.23.050\(5\)#Fig30.23.050\(4\) "Fig. 30.23.050(4) Finding the Midpoint of Different Roof Types") and [(5)](https://snohomish.county.codes/SCC/30.23.050\(5\)#Fig30.23.050\(5\) "Fig. 30.23.050(5) Calculating Building Height for Flat and Mansard Roofs"). If a [building](https://snohomish.county.codes/SCC/30.91B.200) has more than one roof type, the highest roof shall be used to determine the height of the [building](https://snohomish.county.codes/SCC/30.91B.200).
Calculation of the average final [grade](https://snohomish.county.codes/SCC/30.91G.070) shall be made by drawing the smallest rectangle possible that encompasses the entire [building area](https://snohomish.county.codes/SCC/30.91B.210) as shown in SCC Figure [30\.23.050(1)](https://snohomish.county.codes/SCC/30.23.050\(5\)#Fig30.23.050\(1\) "Fig. 30.23.050(1) Calculating Average Final Grade and Determining Height") and averaging the elevations at the midpoint of each side of the rectangle. When a [structure](https://snohomish.county.codes/SCC/30.91S.660) that is to be fully partitioned with internal dividing walls separating individual [dwelling units](https://snohomish.county.codes/SCC/30.91D.530) from each other from ground to sky, the [applicant](https://snohomish.county.codes/SCC/30.91A.220) may request a modification of the measurement by evaluating maximum height based upon individual sections to respond to topography of the [site](https://snohomish.county.codes/SCC/30.91S.340) as follows:
Drawing the smallest rectangle possible that encompasses the entire [building area](https://snohomish.county.codes/SCC/30.91B.210);
Dividing one side of the rectangle, as chosen by the [applicant](https://snohomish.county.codes/SCC/30.91A.220), into sections equal to the internal dividing walls that fully separate individual [dwelling units](https://snohomish.county.codes/SCC/30.91D.530) from each other using lines that are perpendicular to the chosen side of the rectangle;
The sections delineated in subsection [(4)(b)](https://snohomish.county.codes/SCC/30.23.050\(4\)\(b\) "30.23.050(4)(b)") of this section must extend vertically from ground to sky; and
The maximum height for each section of the [structure](https://snohomish.county.codes/SCC/30.91S.660) is measured from the average final [grade](https://snohomish.county.codes/SCC/30.91G.070) for that section of the [structure](https://snohomish.county.codes/SCC/30.91S.660), which is calculated as the average elevation at the midpoints of each side of the rectangle for each section of the [structure](https://snohomish.county.codes/SCC/30.91S.660), as illustrated in SCC Figure [30\.23.050(2)](https://snohomish.county.codes/SCC/30.23.050\(5\)#Fig30.23.050\(2\) "Fig. 30.23.050(2) Calculating Average Final Grade and Determining Height for Portions of a Fully Partitioned Attached Single-Family Structure").
[Fill](https://snohomish.county.codes/SCC/30.91F.210) shall not be used to raise the average final [grade](https://snohomish.county.codes/SCC/30.91G.070) more than five feet above the [existing grade](https://snohomish.county.codes/SCC/30.91G.070\(1\)) of any [dwelling](https://snohomish.county.codes/SCC/30.91D.490) located within 50 feet on adjoining properties, as illustrated in SCC Figure [30\.23.050(3)](https://snohomish.county.codes/SCC/30.23.050\(5\)#Fig30.23.050\(3\) "Fig. 30.23.050(3) Restrictions on Using Fill to Alter Average Final Grade"); provided, that the provisions of this subsection (5) shall not apply to residential development subject to chapters [30\.23A](https://snohomish.county.codes/SCC/30.23A "ch. 30.23A Urban Residential Design Standards") and [30\.41G](https://snohomish.county.codes/SCC/30.41G "ch. 30.41G Cottage Housing") SCC.
The measurement of height under this section does not apply to [buildings](https://snohomish.county.codes/SCC/30.91B.200) regulated by the Snohomish County [Shoreline Management Program](https://snohomish.county.codes/SCC/30.91S.194), nor does it replace the definitions of height in the [construction codes](https://snohomish.county.codes/SCC/30.91C.265), which are specific to the provisions in those chapters.
Rooftop heating, ventilation and air conditioning (HVAC) and similar systems, when located on commercial, industrial or multifamily [structures](https://snohomish.county.codes/SCC/30.91S.660). The system shall not exceed the maximum [building height](https://snohomish.county.codes/SCC/30.91B.240) of the underlying zone by more than 30 percent or 15 feet, whichever is less. Sight-obscuring screening shall be required unless otherwise approved by the [director](https://snohomish.county.codes/SCC/30.91D.280) of the [department](https://snohomish.county.codes/SCC/30.91D.110). (Added by Amended Ord. 02-064, Dec. 9, 2002, Eff date Feb. 1, 2003; Reenacted by Amended Ord. 08-101, Jan. 21, 2009, Eff date Apr. 21, 2009; Amended by Ord. 10-024, June 9, 2010, Eff date Sept. 30, 2010; Amended by Amended Ord. 10-072, Sept. 8, 2010, Eff date Oct. 3, 2010; Amended by Amended Ord. 12-025, June 6, 2012, Eff date July 27, 2012; Amended by Amended Ord. 12-049, Oct. 3, 2012, Eff date Jan. 1, 2013; Amended by Amended Ord. 15-025, May 6, 2015, Eff date May 24, 2015; Amended by Ord. 15-103, Jan. 11, 2016, Eff date Jan. 22, 2016; Amended by Ord. 17-062, Oct. 18, 2017, Eff date Dec. 17, 2017; Amended by Ord. 21-011, Apr. 7, 2021, Eff date Apr. 22, 2021; Amended by Amended Ord. 23-033, June 7, 2023, Eff date June 23, 2023).
This section is included in your selections.
(Added by Amended Ord. 23-033, June 7, 2023, Eff date June 23, 2023; Repealed by Amended Ord. 23-033, June 7, 2023, Eff date Dec. 7, 2023).
This section is included in your selections.
Land divided pursuant to a recorded [binding site plan](https://snohomish.county.codes/SCC/30.91B.120) shall be governed by the bulk regulations of the underlying zone. The entire land area subject to the BSP shall be treated as a single [lot](https://snohomish.county.codes/SCC/30.91L.120) when applying minimum [lot area](https://snohomish.county.codes/SCC/30.91L.130), minimum [lot width](https://snohomish.county.codes/SCC/30.91L.210), [setbacks](https://snohomish.county.codes/SCC/30.91S.160), maximum [lot coverage](https://snohomish.county.codes/SCC/30.91L.150), [off-street parking](https://snohomish.county.codes/SCC/30.91P.060), [sign](https://snohomish.county.codes/SCC/30.91S.310), and landscaping requirements. (Added by Amended Ord. 02-064, Dec. 9, 2002, Eff date Feb. 1, 2003).
This section is included in your selections.
For safety purposes, all owners of [corner lots](https://snohomish.county.codes/SCC/30.91L.140) shall maintain a sight clearance triangle in accordance with SCC Figure [30\.23.100(1)](https://snohomish.county.codes/SCC/30.23.100#Fig30.23.100\(1\) "Fig. 30.23.100(1) Corner Lot Sight Clearance Triangle"). The sight clearance triangle is formed by measuring 15 feet along the two [front lot lines](https://snohomish.county.codes/SCC/30.91L.170) from their point of intersection (point A) and connecting the two endpoints (line B - C). Within the area comprising the triangle, no tree, [fence](https://snohomish.county.codes/SCC/30.91F.200), shrub, [sign](https://snohomish.county.codes/SCC/30.91S.310), or other physical obstruction higher than 42 inches above the established [road network element](https://snohomish.county.codes/SCC/30.91R.215) [grade](https://snohomish.county.codes/SCC/30.91G.070) shall be permitted.
(Added by Amended Ord. 02-064, Dec. 9, 2002, Eff date Feb. 1, 2003; Amended by Amended Ord. 08-101, Jan. 21, 2009, Eff date Apr. 21, 2009; Amended by Amended Ord. 12-049, Oct. 3, 2012, Eff date Jan. 1, 2013).
This section is included in your selections.
This section supplements the normal [setbacks](https://snohomish.county.codes/SCC/30.91S.160) required by the underlying zone for the specified use.
All [structures](https://snohomish.county.codes/SCC/30.91S.660) used for housing or feeding animals, not including household pets, shall be located at least 30 feet from all property lines.
Theaters must be at least 300 feet from the property line of any [preschool](https://snohomish.county.codes/SCC/30.91P.270) or K-12 [school. Other](https://snohomish.county.codes/SCC/30.91S.060) [amusement facilities](https://snohomish.county.codes/SCC/30.91A.160) must be at least 500 feet from the property line of any park, playground, [preschool](https://snohomish.county.codes/SCC/30.91P.270), or K-12 school. Distances shall be measured horizontally by following a straight line from the nearest point in the [building](https://snohomish.county.codes/SCC/30.91B.200) in which the [amusement facility](https://snohomish.county.codes/SCC/30.91A.160) will be located, to the nearest property line of a parcel which contains a park, playground, [preschool](https://snohomish.county.codes/SCC/30.91P.270), or K-12 school.
All [buildings](https://snohomish.county.codes/SCC/30.91B.200) must be at least 20 feet from any other [lot](https://snohomish.county.codes/SCC/30.91L.120) in a residential zone.
All [buildings](https://snohomish.county.codes/SCC/30.91B.200) must be at least 50 feet from external boundaries of the property.
All [buildings](https://snohomish.county.codes/SCC/30.91B.200) must be at least 25 feet from any other [lot](https://snohomish.county.codes/SCC/30.91L.120) in a residential zone.
Covered [structures](https://snohomish.county.codes/SCC/30.91S.660) must be at least three feet from any [side lot line](https://snohomish.county.codes/SCC/30.91L.190) or extension thereof. No [setback](https://snohomish.county.codes/SCC/30.91S.160) from adjacent properties is required for any uncovered [structure](https://snohomish.county.codes/SCC/30.91S.660), and no [setback](https://snohomish.county.codes/SCC/30.91S.160) from the water is required for any [structure](https://snohomish.county.codes/SCC/30.91S.660) permitted hereunder, except that [setbacks](https://snohomish.county.codes/SCC/30.91S.160) for [docks](https://snohomish.county.codes/SCC/30.91D.310) and [boathouses](https://snohomish.county.codes/SCC/30.91B.160) located in [shoreline jurisdiction](https://snohomish.county.codes/SCC/30.91S.193) are regulated under SCC [30\.67.517](https://snohomish.county.codes/SCC/30.67.517 "30.67.517 Boat mooring facilities – docks, piers, floats, boathouses and mooring buoys").
All [buildings](https://snohomish.county.codes/SCC/30.91B.200) shall be set back at least 35 feet from all external property lines; and
All [buildings](https://snohomish.county.codes/SCC/30.91B.200) shall be set back from all [road network elements](https://snohomish.county.codes/SCC/30.91R.215), except a [driveway](https://snohomish.county.codes/SCC/30.91D.460). The [setback](https://snohomish.county.codes/SCC/30.91S.160) shall be the greater of either 75 feet from the centerline of a [road network element](https://snohomish.county.codes/SCC/30.91R.215), or 45 feet from the edge of a [road network element](https://snohomish.county.codes/SCC/30.91R.215).
Open or covered arenas must be at least 50 feet from any external property line. New [structures](https://snohomish.county.codes/SCC/30.91S.660) located on or adjacent to lands subject to chapter [30\.32A](https://snohomish.county.codes/SCC/30.32A "ch. 30.32A Forest Lands") SCC shall comply with all applicable [setbacks](https://snohomish.county.codes/SCC/30.91S.160).
All [structures](https://snohomish.county.codes/SCC/30.91S.660) must be at least 20 feet from any other [lot](https://snohomish.county.codes/SCC/30.91L.120) in a residential zone.
All [buildings](https://snohomish.county.codes/SCC/30.91B.200) must be at least 30 feet from all external property boundaries.
All [animal runs](https://snohomish.county.codes/SCC/30.91A.180), and all [buildings](https://snohomish.county.codes/SCC/30.91B.200) and [structures](https://snohomish.county.codes/SCC/30.91S.660) devoted primarily to housing animals, must be at least 30 feet from all external property lines.
All [buildings](https://snohomish.county.codes/SCC/30.91B.200) must be at least 20 feet from any other [lot](https://snohomish.county.codes/SCC/30.91L.120) in a residential zone.
All [buildings](https://snohomish.county.codes/SCC/30.91B.200) must be at least 20 feet from any other [lot](https://snohomish.county.codes/SCC/30.91L.120) in a residential zone.
All [buildings](https://snohomish.county.codes/SCC/30.91B.200) must be at least 20 feet from any other [lot](https://snohomish.county.codes/SCC/30.91L.120) in a residential zone.
The track must be at least 50 feet from all external property lines.
All [buildings](https://snohomish.county.codes/SCC/30.91B.200) and [structures](https://snohomish.county.codes/SCC/30.91S.660), storage areas, or other activities (except sales stands) occurring outside of a residential [structure](https://snohomish.county.codes/SCC/30.91S.660) must be at least 20 feet from any property line.
All [buildings](https://snohomish.county.codes/SCC/30.91B.200) shall be set back at least 35 feet from all external property lines; and
All [buildings](https://snohomish.county.codes/SCC/30.91B.200) shall be set back from all [road network elements](https://snohomish.county.codes/SCC/30.91R.215), except a [driveway](https://snohomish.county.codes/SCC/30.91D.460). The [setback](https://snohomish.county.codes/SCC/30.91S.160) shall be the greater of either 75 feet from the centerline of a [road network element](https://snohomish.county.codes/SCC/30.91R.215), or 45 feet from the edge of the [road network element](https://snohomish.county.codes/SCC/30.91R.215).
The following [setbacks](https://snohomish.county.codes/SCC/30.91S.160) shall be applied from all [road network elements](https://snohomish.county.codes/SCC/30.91R.215), except for a [driveway](https://snohomish.county.codes/SCC/30.91D.460):
The [setback](https://snohomish.county.codes/SCC/30.91S.160) for a pump island, where the width of the [road network element](https://snohomish.county.codes/SCC/30.91R.215) is less than 60 feet, shall be 45 feet from the centerline of the [road network element](https://snohomish.county.codes/SCC/30.91R.215).
The [setback](https://snohomish.county.codes/SCC/30.91S.160) for a pump island, where the [road network element](https://snohomish.county.codes/SCC/30.91R.215) is 60 feet or wider, shall be one-half the width of the [road network element](https://snohomish.county.codes/SCC/30.91R.215) plus 15 feet.
The [setback](https://snohomish.county.codes/SCC/30.91S.160) for a canopy, where the [road network element](https://snohomish.county.codes/SCC/30.91R.215) is less than 60 feet, shall be 35 feet from the centerline of the [road network element](https://snohomish.county.codes/SCC/30.91R.215).
The [setback](https://snohomish.county.codes/SCC/30.91S.160) for a canopy, where the [road network element](https://snohomish.county.codes/SCC/30.91R.215) is 60 feet or wider, shall be one-half the width of the [road network element](https://snohomish.county.codes/SCC/30.91R.215) plus five feet.
All [structures](https://snohomish.county.codes/SCC/30.91S.660) used for housing or feeding animals must be at least 30 feet from all property lines.
Detached accessory or [non-accessory storage structures](https://snohomish.county.codes/SCC/30.91S.595) and private garages with [building](https://snohomish.county.codes/SCC/30.91B.200) footprints over 2,400 square feet must be at least 15 feet from any external property line; provided, that parcels abutting open space tracts shall have a five-foot [setback](https://snohomish.county.codes/SCC/30.91S.160) from the open space. Storage [structures](https://snohomish.county.codes/SCC/30.91S.660) and private garages over 4,000 square feet in size must be set back at least 20 feet from any external property line; provided, that parcels abutting open space tracts shall have a five-foot [setback](https://snohomish.county.codes/SCC/30.91S.160) from the open space.
RESERVED for future use.
All [buildings](https://snohomish.county.codes/SCC/30.91B.200) must be at least 20 feet from any other [lot](https://snohomish.county.codes/SCC/30.91L.120) in a residential, multiple-[family](https://snohomish.county.codes/SCC/30.91F.080), or rural zone. The [hearing examiner](https://snohomish.county.codes/SCC/30.91H.100) may require an additional [setback](https://snohomish.county.codes/SCC/30.91S.160) distance when necessary to maintain compatibility of the proposed [building](https://snohomish.county.codes/SCC/30.91B.200) with residential uses on adjoining properties.
The pool must be at least five feet from any property line.
The use must be at least 500 feet from the external property lines of all public school grounds and [public parks](https://snohomish.county.codes/SCC/30.91P.100) or playgrounds.
All [structures](https://snohomish.county.codes/SCC/30.91S.660) must be at least 20 feet from any other [lot](https://snohomish.county.codes/SCC/30.91L.120) in a residential zone.
The [setbacks](https://snohomish.county.codes/SCC/30.91S.160) of a [tower](https://snohomish.county.codes/SCC/30.91T.058) used for a [personal wireless service facility](https://snohomish.county.codes/SCC/30.91P.186) shall be measured from the base of the [structure](https://snohomish.county.codes/SCC/30.91S.660) to the property line of the parcel on which it is located. Where guy wire supports are used, [setbacks](https://snohomish.county.codes/SCC/30.91S.160) shall be measured from the base of the guy wire anchored to the ground, rather than the base of the [structure](https://snohomish.county.codes/SCC/30.91S.660), except as provided for in SCC [30\.23.110(26)(b)](https://snohomish.county.codes/SCC/30.23.110\(26\)\(b\) "30.23.110(26)(b)").
In zones categorized as Rural or Resource under SCC [30\.21.020](https://snohomish.county.codes/SCC/30.21.020 "30.21.020 Establishment of zones"), any [public road](https://snohomish.county.codes/SCC/30.91R.220) [right-of-way](https://snohomish.county.codes/SCC/30.91R.200) may be included in the [setback](https://snohomish.county.codes/SCC/30.91S.160) calculation. In all other zones categorized under SCC [30\.21.020](https://snohomish.county.codes/SCC/30.21.020 "30.21.020 Establishment of zones"), [public road](https://snohomish.county.codes/SCC/30.91R.220) [right-of-way](https://snohomish.county.codes/SCC/30.91R.200) shall not be included in the [setback](https://snohomish.county.codes/SCC/30.91S.160) calculation.
A [tower](https://snohomish.county.codes/SCC/30.91T.058) shall be set back from a property line with a minimum of 50 feet, except as provided for in subsections [(26)(d)](https://snohomish.county.codes/SCC/30.23.110\(26\)\(d\) "30.23.110(26)(d)") through [(26)(f)](https://snohomish.county.codes/SCC/30.23.110\(26\)\(f\) "30.23.110(26)(f)") of this section. For the purposes of this subsection, a [personal wireless service facility](https://snohomish.county.codes/SCC/30.91P.186)’s lease area boundaries shall not be considered property lines.
[Setbacks](https://snohomish.county.codes/SCC/30.91S.160) may be modified by the [approving authority](https://snohomish.county.codes/SCC/30.91A.242) to no less than 20 feet from a property line only if there is significant existing vegetation, topography, or some other land feature that will provide a higher level of screening of the facility. In accordance with SCC [30\.25.025(2)](https://snohomish.county.codes/SCC/30.25.025\(2\) "30.25.025(2)"), a [Native Vegetation Retention Area](https://snohomish.county.codes/SCC/30.91N.013) ([NVRA](https://snohomish.county.codes/SCC/30.91N.013)) shall be established and maintained when this provision is used.
[Personal wireless service facilities](https://snohomish.county.codes/SCC/30.91P.186) located on [utility](https://snohomish.county.codes/SCC/30.91U.110) [structures](https://snohomish.county.codes/SCC/30.91S.660), streetlight poles, traffic signal poles, or existing [structures](https://snohomish.county.codes/SCC/30.91S.660) shall not be subject to the [personal wireless service facility](https://snohomish.county.codes/SCC/30.91P.186) special [setback](https://snohomish.county.codes/SCC/30.91S.160) requirements of subsections [(26)(a)](https://snohomish.county.codes/SCC/30.23.110\(26\)\(a\) "30.23.110(26)(a)") through [(26)(c)](https://snohomish.county.codes/SCC/30.23.110\(26\)\(c\) "30.23.110(26)(c)") of this section.
[Towers](https://snohomish.county.codes/SCC/30.91T.058) and [auxiliary support equipment](https://snohomish.county.codes/SCC/30.91A.346) located on parcels adjacent to [forest lands](https://snohomish.county.codes/SCC/30.91F.460) or lands designated local forest shall be set back in accordance with SCC [30\.32A.110](https://snohomish.county.codes/SCC/30.32A.110 "30.32A.110 Siting of new structures: local forest land or adjacent to forest land").
To minimize the potential for birds to collide into antennas and [towers](https://snohomish.county.codes/SCC/30.91T.058), [personal wireless service facilities](https://snohomish.county.codes/SCC/30.91P.186) shall not be located within the recommended construction buffer zone for birds listed as priority species by the Washington [Department](https://snohomish.county.codes/SCC/30.91D.110) of Fish and Wildlife as described in its Management Recommendations for Washington’s Priority Species Volume IV: Birds (revised March 2012), or listed as endangered or [threatened species](https://snohomish.county.codes/SCC/30.91T.054) under the federal [Endangered Species](https://snohomish.county.codes/SCC/30.91T.054) Act ([50](https://snohomish.county.codes/US/CFR/50) CFR Part [17](https://snohomish.county.codes/US/CFR/50/17)), and as amended, unless the [applicant](https://snohomish.county.codes/SCC/30.91A.220) demonstrates that the proposed location will not have a significant impact on such birds.
In no case shall a [tower](https://snohomish.county.codes/SCC/30.91T.058) be constructed so that its base is closer to an existing [dwelling](https://snohomish.county.codes/SCC/30.91D.490) than a distance equal to the height of the [tower](https://snohomish.county.codes/SCC/30.91T.058), unless the owner of such [dwelling](https://snohomish.county.codes/SCC/30.91D.490) consents in writing that a closer distance is permitted.
Minimum [setbacks](https://snohomish.county.codes/SCC/30.91S.160), as measured from the nearest edge of active mining or processing, shall be established as follows:
Distance from property line: 50 feet;
Distance from any [public road](https://snohomish.county.codes/SCC/30.91R.220) or [right-of-way](https://snohomish.county.codes/SCC/30.91R.200): 50 feet;
Distance from residences: 100 feet; provided, that the residence is located on a [site](https://snohomish.county.codes/SCC/30.91S.340)(s) designated and zoned for residential use;
Distance from parks, schools, [hospitals](https://snohomish.county.codes/SCC/30.91H.160) and/or [libraries](https://snohomish.county.codes/SCC/30.91L.075) in existence at the time of [permit](https://snohomish.county.codes/SCC/30.91P.140) application: one-fourth mile (1,320 feet);
Distance from [UGA boundary](https://snohomish.county.codes/SCC/30.91U.091): one-fourth mile (1,320 feet).
No mining, processing or permanent [buildings](https://snohomish.county.codes/SCC/30.91B.200) shall be located within the [setback](https://snohomish.county.codes/SCC/30.91S.160).
[Structures](https://snohomish.county.codes/SCC/30.91S.660) or [buildings](https://snohomish.county.codes/SCC/30.91B.200) associated with [mineral operations](https://snohomish.county.codes/SCC/30.91M.095) shall be located at least 100 feet from a developed residential property line.
The minimum [setback](https://snohomish.county.codes/SCC/30.91S.160) for outdoor [marijuana production](https://snohomish.county.codes/SCC/30.91M.040) or [marijuana processing](https://snohomish.county.codes/SCC/30.91M.038) facilities shall be at least 50 feet from any property line. The minimum [setback](https://snohomish.county.codes/SCC/30.91S.160) for indoor [marijuana production](https://snohomish.county.codes/SCC/30.91M.040) or [marijuana processing](https://snohomish.county.codes/SCC/30.91M.038) facilities shall be at least 30 feet from any property line. (Added by Amended Ord. 02-064, Dec. 9, 2002, Eff date Feb. 1, 2003; Amended by Amended Ord. 04-010, Mar. 3, 2004, Eff date Mar. 15, 2004; Amended by Amended Ord. 05-038, Nov. 30, 2005, Eff date Dec. 16, 2005; Amended by Amended Ord. 05-083, Dec. 21, 2005, Eff date Feb. 1, 2006; Amended by Amended Ord. 05-089, Dec. 21, 2005, Eff date Feb. 1, 2006; Amended by Amended Emerg. Ord. 06-011, Feb. 15, 2006, Eff date Feb. 15, 2006; Amended by Amended Ord. 06-057, Aug. 2, 2006, Eff date Aug. 14, 2006; Amended by Amended Ord. 10-026, June 9, 2010, Eff date Sept. 30, 2010; Amended by Amended Ord. 12-025, June 6, 2012, Eff date July 27, 2012; Amended by Amended Ord. 12-049, Oct. 3, 2012, Eff date Jan. 1, 2013; Amended by Amended Ord. 13-086, Nov. 13, 2013, Eff date Nov. 28, 2013; Amended by Ord. 14-053, Aug. 27, 2014, Eff date Sept. 13, 2014; Amended by Ord. 15-005, Mar. 18, 2015, Eff date Apr. 2, 2015; Amended by Ord. 15-103, Jan. 11, 2016, Eff date Jan. 22, 2016; Amended by Amended Ord. 16-029, May 11, 2016, Eff date May 23, 2016; Amended by Ord. 18-011, Mar. 21, 2018, Eff date May 20, 2018; Amended by Amended Ord. 19-020, July 3, 2019, Eff date Oct. 14, 2019).
This section is included in your selections.
Minor architectural features, including cornices, eaves, sills, fireplaces, chimneys and flues, open beams, bay windows, [greenhouse](https://snohomish.county.codes/SCC/30.91G.080) windows, trellises, ornamental elements, and other similar features of a minor nature may extend or project into a required [setback](https://snohomish.county.codes/SCC/30.91S.160) a distance of not more than 30 percent of the required [setback](https://snohomish.county.codes/SCC/30.91S.160) if the following conditions are met:
Except for eaves, cornices, and sills, the combined length of all such features along any one [building](https://snohomish.county.codes/SCC/30.91B.200) wall shall not exceed 20 percent of the length of that [building](https://snohomish.county.codes/SCC/30.91B.200) wall; and
Minor architectural features may not be used to extend [building](https://snohomish.county.codes/SCC/30.91B.200) floor area into the required [setback](https://snohomish.county.codes/SCC/30.91S.160). Only fireplace chimneys and flues may extend to finished [grade](https://snohomish.county.codes/SCC/30.91G.070).
Uncovered [porches](https://snohomish.county.codes/SCC/30.91P.255), steps, and decks may project into a required [setback](https://snohomish.county.codes/SCC/30.91S.160), if they are no more than four feet above the finished ground level, at least 30 inches from any [lot](https://snohomish.county.codes/SCC/30.91L.120) line, and project no more than six feet into a [setback](https://snohomish.county.codes/SCC/30.91S.160) required from a [street](https://snohomish.county.codes/SCC/30.91S.650). (Added by Amended Ord. 02-064, Dec. 9, 2002, Eff date Feb. 1, 2003).
This section is included in your selections.
Front [setback](https://snohomish.county.codes/SCC/30.91S.160) exceptions for new [structures](https://snohomish.county.codes/SCC/30.91S.660) from existing [road network elements](https://snohomish.county.codes/SCC/30.91R.215) listed in SCC Tables [30\.23.041](https://snohomish.county.codes/SCC/30.23.041#Tab30.23.041 "Table 30.23.041 Setbacks from Road Network Elements in Urban Zones") through [30\.23.047](https://snohomish.county.codes/SCC/30.23.047#Tab30.23.047 "Table 30.23.047 Setbacks from Road Network Elements in Other Zones") shall be as follows:
The minimum front [setback](https://snohomish.county.codes/SCC/30.91S.160) from a [road network element](https://snohomish.county.codes/SCC/30.91R.215) may be averaged when at least 50 percent of the [lots](https://snohomish.county.codes/SCC/30.91L.120) on the same side of the [road network element](https://snohomish.county.codes/SCC/30.91R.215), and within 165 feet of either side of the subject [lot](https://snohomish.county.codes/SCC/30.91L.120), are improved with permitted [buildings](https://snohomish.county.codes/SCC/30.91B.200). The front [setback](https://snohomish.county.codes/SCC/30.91S.160) shall be determined by averaging the front [setback](https://snohomish.county.codes/SCC/30.91S.160) of those [structures](https://snohomish.county.codes/SCC/30.91S.660) on those [lots](https://snohomish.county.codes/SCC/30.91L.120) whose [setback](https://snohomish.county.codes/SCC/30.91S.160) is equal to or less than the [setback](https://snohomish.county.codes/SCC/30.91S.160) required in the underlying zone; provided, that the [setback](https://snohomish.county.codes/SCC/30.91S.160) for a vacant [lot](https://snohomish.county.codes/SCC/30.91L.120) is that required in the bulk matrices for the underlying zone.
The minimum front [setback](https://snohomish.county.codes/SCC/30.91S.160) may be reduced one foot for each percent of natural [slope](https://snohomish.county.codes/SCC/30.91S.380) in excess of 35 percent, as measured from the midpoint of the [front lot line](https://snohomish.county.codes/SCC/30.91L.170) from which the reduction is sought, for a distance of 60 feet into the [lot](https://snohomish.county.codes/SCC/30.91L.120).
The [setback](https://snohomish.county.codes/SCC/30.91S.160) from a temporary [turnaround](https://snohomish.county.codes/SCC/30.91T.130) [easement](https://snohomish.county.codes/SCC/30.91E.030) shall be the greater of either:
Five feet from the [easement](https://snohomish.county.codes/SCC/30.91E.030) line; or
The [setback](https://snohomish.county.codes/SCC/30.91S.160) from the [right-of-way](https://snohomish.county.codes/SCC/30.91R.200) line for the zoning classification.
New [structures](https://snohomish.county.codes/SCC/30.91S.660) shall have a minimum five-foot [setback](https://snohomish.county.codes/SCC/30.91S.160) from:
The edge of a [private road](https://snohomish.county.codes/SCC/30.91R.230) network element when the [lot](https://snohomish.county.codes/SCC/30.91L.120) does not have an [easement](https://snohomish.county.codes/SCC/30.91E.030) to utilize the [private road](https://snohomish.county.codes/SCC/30.91R.230) network element; or
The edge of a [restricted access right-of-way](https://snohomish.county.codes/SCC/30.91R.125).
The [setback](https://snohomish.county.codes/SCC/30.91S.160) from a tract or [easement](https://snohomish.county.codes/SCC/30.91E.030) for a [shared driveway](https://snohomish.county.codes/SCC/30.91D.465) or a [private road](https://snohomish.county.codes/SCC/30.91R.230) capable of serving only one or two [lots](https://snohomish.county.codes/SCC/30.91L.120) shall be considered a side or rear [setback](https://snohomish.county.codes/SCC/30.91S.160) if the [lot](https://snohomish.county.codes/SCC/30.91L.120) also fronts on a public [right-of-way](https://snohomish.county.codes/SCC/30.91R.200).
Where one of the roads creating a corner or [through lot](https://snohomish.county.codes/SCC/30.91L.200) is a [restricted access right-of-way](https://snohomish.county.codes/SCC/30.91R.125), side or rear yard [setbacks](https://snohomish.county.codes/SCC/30.91S.160) shall apply along the [restricted access right-of-way](https://snohomish.county.codes/SCC/30.91R.125). (Added by Amended Ord. 02-064, Dec. 9, 2002, Eff date Feb. 1, 2003; Amended by Amended Ord. 12-049, Oct. 3, 2012, Eff date Jan. 1, 2013).
This section is included in your selections.
(Added by Amended Ord. 02-064, Dec. 9, 2002, Eff date Feb. 1, 2003; Amended by Amended Ord. 04-003, Mar. 31, 2004, Eff date May 17, 2004; Amended by Amended Ord. 07-022, Apr. 23, 2007, Eff date June 4, 2007; Repealed by Amended Ord. 12-049, Oct. 3, 2012, Eff date Jan. 1, 2013).
This section is included in your selections.
A proposed [private road](https://snohomish.county.codes/SCC/30.91R.230) network element that provides legal access to a [lot](https://snohomish.county.codes/SCC/30.91L.120) shall not be located closer than 15 feet from any existing [structure](https://snohomish.county.codes/SCC/30.91S.660) on the [lot](https://snohomish.county.codes/SCC/30.91L.120).
A proposed [private road](https://snohomish.county.codes/SCC/30.91R.230) network element that does not provide legal access to a [lot](https://snohomish.county.codes/SCC/30.91L.120) shall not be located closer than five feet from any existing [structure](https://snohomish.county.codes/SCC/30.91S.660) on the [lot](https://snohomish.county.codes/SCC/30.91L.120). (Added by Amended Ord. 12-049, Oct. 3, 2012, Eff date Jan. 1, 2013).
This section is included in your selections.
If two or more [lots](https://snohomish.county.codes/SCC/30.91L.120) are built upon as one unit, and are held under common ownership, the boundary line separating the two or more [lots](https://snohomish.county.codes/SCC/30.91L.120) may be covered by a [building](https://snohomish.county.codes/SCC/30.91B.200) or permitted group of [buildings](https://snohomish.county.codes/SCC/30.91B.200). Such [lots](https://snohomish.county.codes/SCC/30.91L.120) shall constitute a single [building](https://snohomish.county.codes/SCC/30.91B.200) [site](https://snohomish.county.codes/SCC/30.91S.340), and the [setbacks](https://snohomish.county.codes/SCC/30.91S.160) required by this chapter shall apply to the aggregate of the [lots](https://snohomish.county.codes/SCC/30.91L.120). (Added by Ord. 03-068, July 9, 2003, Eff date July 28, 2003).
This section is included in your selections.
No minimum [lot area](https://snohomish.county.codes/SCC/30.91L.130) shall be so reduced or diminished that the [setbacks](https://snohomish.county.codes/SCC/30.91S.160) or other open spaces shall be smaller than prescribed by this title, nor shall the density of population be increased in any manner except in conformity with the regulations established by this title.
No minimum [lot](https://snohomish.county.codes/SCC/30.91L.120) dimension shall be required for the development of governmental [structures](https://snohomish.county.codes/SCC/30.91S.660) and facilities, [utility](https://snohomish.county.codes/SCC/30.91U.110) [structures](https://snohomish.county.codes/SCC/30.91S.660) and facilities, or [personal wireless service facilities](https://snohomish.county.codes/SCC/30.91P.186). (Added by Amended Ord. 02-064, Dec. 9, 2002, Eff date Feb. 1, 2003; Amended by Amended Ord. 11-058, Jan. 25, 2012, Eff date Feb. 16, 2012; Amended by Ord. 18-011, Mar. 21, 2018, Eff date May 20, 2018).
This section is included in your selections.
In R-9,600, R-8,400, R-7,200, and LDMR zones, a [subdivision](https://snohomish.county.codes/SCC/30.91S.710) or [short subdivision](https://snohomish.county.codes/SCC/30.91S.280) may meet the minimum [lot area](https://snohomish.county.codes/SCC/30.91L.130) requirement by calculating average [lot](https://snohomish.county.codes/SCC/30.91L.120) size under this section.
Divide the [site](https://snohomish.county.codes/SCC/30.91S.340) area in square feet by the total number of [lots](https://snohomish.county.codes/SCC/30.91L.120) containing new [dwelling units](https://snohomish.county.codes/SCC/30.91D.530) ([lots](https://snohomish.county.codes/SCC/30.91L.120) for [existing dwelling units](https://snohomish.county.codes/SCC/30.91D.535) as defined in SCC [30\.91D.535](https://snohomish.county.codes/SCC/30.91D.535 "30.91D.535 Dwelling unit, existing") are exempt).
If the average [lot](https://snohomish.county.codes/SCC/30.91L.120) size as computed under subsection [(1)](https://snohomish.county.codes/SCC/30.23.210\(1\) "30.23.210(1)") of this section equals or exceeds the minimum [lot area](https://snohomish.county.codes/SCC/30.91L.130) requirement of the zone in which the property is located, then the minimum [lot area](https://snohomish.county.codes/SCC/30.91L.130) requirement will be satisfied for the purposes of [lot](https://snohomish.county.codes/SCC/30.91L.120) size averaging.
In no case shall the provisions under SCC [30\.23.230(3)](https://snohomish.county.codes/SCC/30.23.230\(3\) "30.23.230(3)") apply to this section.
The following additional criteria apply:
Each single [lot](https://snohomish.county.codes/SCC/30.91L.120) shall be at least 3,000 square feet in area;
[Lots](https://snohomish.county.codes/SCC/30.91L.120) in [subdivisions](https://snohomish.county.codes/SCC/30.91S.710) and [short subdivisions](https://snohomish.county.codes/SCC/30.91S.280) created under the provisions of this section shall have a maximum [lot coverage](https://snohomish.county.codes/SCC/30.91L.150) of 55 percent;
[Lots](https://snohomish.county.codes/SCC/30.91L.120) with less than the prescribed minimum [lot area](https://snohomish.county.codes/SCC/30.91L.130) requirement for the zone in which they are located shall have:
A minimum [lot width](https://snohomish.county.codes/SCC/30.91L.210) of at least 34 feet; and
[Setbacks](https://snohomish.county.codes/SCC/30.91S.160) of 15 feet from [right-of-way](https://snohomish.county.codes/SCC/30.91R.200) and [private roads](https://snohomish.county.codes/SCC/30.91R.230), except that garages must be set back 18 feet from [right-of-way](https://snohomish.county.codes/SCC/30.91R.200) (with the exception of [alleys](https://snohomish.county.codes/SCC/30.91A.150)) or [private roads](https://snohomish.county.codes/SCC/30.91R.230) and [corner lots](https://snohomish.county.codes/SCC/30.91L.140) may reduce one [right-of-way](https://snohomish.county.codes/SCC/30.91R.200) [setback](https://snohomish.county.codes/SCC/30.91S.160) to no less than 10 feet; and
[Preliminary subdivisions](https://snohomish.county.codes/SCC/30.91S.730) approved using [lot](https://snohomish.county.codes/SCC/30.91L.120) size averaging shall not be recorded by divisions unless such divisions individually or together as cumulative, contiguous parcels satisfy the requirements of this section. (Added by Amended Ord. 02-064, Dec. 9, 2002, Eff date Feb. 1, 2003; Amended by Amended Ord. 03-075, Sept. 24, 2003, Eff date Oct. 6, 2003; Amended by Amended Ord. 04-081, Sept. 1, 2004, Eff date Sept. 24, 2004; Amended by Amended Ord. 06-061, Aug. 1, 2007, Eff date Oct. 1, 2007; Amended by Amended Ord. 08-101, Jan. 21, 2009, Eff date Apr. 21, 2009; Amended by Amended Ord. 13-042, July 10, 2013, Eff date July 22, 2013; Amended by Amended Ord. 14-073, Oct. 8, 2014, Eff date Oct. 27, 2014; Amended by Ord. 15-065, Oct. 14, 2015, Eff date Oct. 30, 2015; Amended by Amended Ord. 20-005, Mar. 11, 2020, Eff date Mar. 28, 2020; Amended by Amended Ord. 22-016, May 4, 2022, Eff date May 19, 2022; Amended by Amended Ord. 22-062, Oct. 26, 2022, Eff date Jan. 1, 2023; Amended by Ord. 24-058, Aug. 14, 2024, Eff date Aug. 26, 2024).
This section is included in your selections.
In F\&R, R-5, and RD zones, a [short subdivision](https://snohomish.county.codes/SCC/30.91S.280) may meet the minimum [lot area](https://snohomish.county.codes/SCC/30.91L.130) requirement by calculating average [lot](https://snohomish.county.codes/SCC/30.91L.120) size under this section.
Divide the [site](https://snohomish.county.codes/SCC/30.91S.340) area in square feet by the total number of [lots](https://snohomish.county.codes/SCC/30.91L.120).
If the average [lot](https://snohomish.county.codes/SCC/30.91L.120) size as computed under subsection [(1)](https://snohomish.county.codes/SCC/30.23.215\(1\) "30.23.215(1)") of this section equals or exceeds the minimum [lot area](https://snohomish.county.codes/SCC/30.91L.130) requirement of the zone in which the property is located, then the minimum [lot area](https://snohomish.county.codes/SCC/30.91L.130) requirement will be satisfied for the purposes of [lot](https://snohomish.county.codes/SCC/30.91L.120) size averaging.
In no case shall the provisions under SCC [30\.23.230(3)](https://snohomish.county.codes/SCC/30.23.230\(3\) "30.23.230(3)") apply to this section.
The following additional criteria apply:
Each single [lot](https://snohomish.county.codes/SCC/30.91L.120) shall be at least 12,500 square feet in area or the minimum area necessary to comply with the county health [department](https://snohomish.county.codes/SCC/30.91D.110) rules and regulations for on-[site](https://snohomish.county.codes/SCC/30.91S.340) sewage disposal and potable water supply, whichever is greater;
[Lots](https://snohomish.county.codes/SCC/30.91L.120) with less than the prescribed minimum [lot area](https://snohomish.county.codes/SCC/30.91L.130) requirement for the zone in which they are located shall have:
A minimum [lot width](https://snohomish.county.codes/SCC/30.91L.210) of at least 75 feet; and
[Setbacks](https://snohomish.county.codes/SCC/30.91S.160) of 50 feet from [right-of-way](https://snohomish.county.codes/SCC/30.91R.200) and [private roads](https://snohomish.county.codes/SCC/30.91R.230), except that [corner lots](https://snohomish.county.codes/SCC/30.91L.140) may reduce one [right-of-way](https://snohomish.county.codes/SCC/30.91R.200) or [private road](https://snohomish.county.codes/SCC/30.91R.230) [setback](https://snohomish.county.codes/SCC/30.91S.160) to no less than 20 feet. (Added by Ord. 24-058, Aug. 14, 2024, Eff date Aug. 26, 2024).
This section is included in your selections.
A [rural cluster subdivision](https://snohomish.county.codes/SCC/30.91R.270) or [short subdivision](https://snohomish.county.codes/SCC/30.91S.280) in a RUTA will meet the minimum [lot area](https://snohomish.county.codes/SCC/30.91L.130) of the zone in which it is located if the average [lot](https://snohomish.county.codes/SCC/30.91L.120) size of all [lots](https://snohomish.county.codes/SCC/30.91L.120) is at least 7,200 square feet and each [lot](https://snohomish.county.codes/SCC/30.91L.120) contains sufficient area to comply with the county health department rules and regulations for on-[site](https://snohomish.county.codes/SCC/30.91S.340) sewage disposal.
[Lots](https://snohomish.county.codes/SCC/30.91L.120) with less than the prescribed minimum [lot area](https://snohomish.county.codes/SCC/30.91L.130) for the zone in which they are located shall conform to the minimum [lot width](https://snohomish.county.codes/SCC/30.91L.210), [setbacks](https://snohomish.county.codes/SCC/30.91S.160), and other bulk regulations of this chapter for [lots](https://snohomish.county.codes/SCC/30.91L.120) located in the R-7,200 zone. (Added by Amended Ord. 02-064, Dec. 9, 2002, Eff date Feb. 1, 2003; Amended by Amended Ord. 08-087, Feb. 4, 2009, Eff date Apr. 5, 2009; Amended by Amended Ord. 22-062, Oct. 26, 2022, Eff date Jan. 1, 2023).
This section is included in your selections.
If a portion of a legally existing [lot](https://snohomish.county.codes/SCC/30.91L.120) or parcel of land in any zone is acquired for public use in any manner, including condemnation or purchase, the remainder of the [lot](https://snohomish.county.codes/SCC/30.91L.120) or parcel shall be considered having the required minimum [lot area](https://snohomish.county.codes/SCC/30.91L.130). However:
The portion of the [lot](https://snohomish.county.codes/SCC/30.91L.120) or parcel remaining after the acquisition for public use has an area of at least one-half of that required for the minimum [lot area](https://snohomish.county.codes/SCC/30.91L.130) in the zone in which the [lot](https://snohomish.county.codes/SCC/30.91L.120) or parcel is located except that, in a zone requiring a minimum [lot area](https://snohomish.county.codes/SCC/30.91L.130) of one-half acre or more, a minimum [lot area](https://snohomish.county.codes/SCC/30.91L.130) of at least 6,000 square feet shall be required; and
After all applicable [setback](https://snohomish.county.codes/SCC/30.91S.160) requirements are met, the remainder of the [lot](https://snohomish.county.codes/SCC/30.91L.120) or parcel contains a rectangular space at least 30 feet by 40 feet in size which is usable for a main [building](https://snohomish.county.codes/SCC/30.91B.200).
The [setback](https://snohomish.county.codes/SCC/30.91S.160) requirements of this title shall not apply to existing legal [structures](https://snohomish.county.codes/SCC/30.91S.660) located on legally-created [lots](https://snohomish.county.codes/SCC/30.91L.120) or parcels where the [setbacks](https://snohomish.county.codes/SCC/30.91S.160) for such [structures](https://snohomish.county.codes/SCC/30.91S.660) have been reduced by governmental acquisition of a portion of the [lots](https://snohomish.county.codes/SCC/30.91L.120) or parcels and such acquisition complies with the standards promulgated for decent, safe, and sanitary housing in Section 12, [Right-of-Way](https://snohomish.county.codes/SCC/30.91R.200) Manual, Washington State Department of Transportation. Any structural expansion of these existing [structures](https://snohomish.county.codes/SCC/30.91S.660) which would increase the degree of [setback](https://snohomish.county.codes/SCC/30.91S.160) nonconformity is prohibited.
[Lots](https://snohomish.county.codes/SCC/30.91L.120) with less than sufficient square footage to meet minimum zoning requirements may be created in approving a [short subdivision](https://snohomish.county.codes/SCC/30.91S.280), when all of the following apply:
As a condition of [short subdivision](https://snohomish.county.codes/SCC/30.91S.280) approval, land must be dedicated for county road purposes pursuant to SCC [30\.41B.200(4)](https://snohomish.county.codes/SCC/30.41B.200\(4\) "30.41B.200(4)") and such [dedication](https://snohomish.county.codes/SCC/30.91D.070) would cause the [short subdivision](https://snohomish.county.codes/SCC/30.91S.280) to lose one or more [lots](https://snohomish.county.codes/SCC/30.91L.120) due to insufficient square footage to meet minimum zoning requirements;
No [lot area](https://snohomish.county.codes/SCC/30.91L.130) may be reduced more than 10 percent below minimum zoning requirements; and
All [lots](https://snohomish.county.codes/SCC/30.91L.120) shall meet minimum county health department requirements. (Added by Amended Ord. 02-064, Dec. 9, 2002, Eff date Feb. 1, 2003; Amended by Amended Ord. 22-062, Oct. 26, 2022, Eff date Jan. 1, 2023).
This section is included in your selections.
Development on [substandard lots](https://snohomish.county.codes/SCC/30.91L.195), including single-[family](https://snohomish.county.codes/SCC/30.91F.080) development under SCC [30\.23.240](https://snohomish.county.codes/SCC/30.23.240 "30.23.240 Residential use of substandard lots"), is permitted, provided that it shall comply with the following requirements:
Development permitted on [substandard lots](https://snohomish.county.codes/SCC/30.91L.195) regulated by this chapter shall be subject to compliance with all other applicable provisions of this title.
Where the combination of [substandard lots](https://snohomish.county.codes/SCC/30.91L.195) is required or proposed for the development of a [single-family dwelling](https://snohomish.county.codes/SCC/30.91D.510), or other [building](https://snohomish.county.codes/SCC/30.91B.200) or [structure](https://snohomish.county.codes/SCC/30.91S.660), the lands involved shall be combined and considered to be a single undivided parcel. No portion of said parcel shall be used, altered or sold in any manner which diminishes compliance with [lot area](https://snohomish.county.codes/SCC/30.91L.130) and width requirements, nor shall any division be made which creates a [lot](https://snohomish.county.codes/SCC/30.91L.120) with a width or area below the requirements permitted by this title. A [site](https://snohomish.county.codes/SCC/30.91S.340) plan depicting the [lot](https://snohomish.county.codes/SCC/30.91L.120) combination shall be recorded with the auditor prior to [permit](https://snohomish.county.codes/SCC/30.91P.140) issuance.
The development of new [duplexes](https://snohomish.county.codes/SCC/30.91D.480) is prohibited.
Except as provided in subsection [(3)](https://snohomish.county.codes/SCC/30.23.235\(3\) "30.23.235(3)") of this section and SCC [30\.23.240](https://snohomish.county.codes/SCC/30.23.240 "30.23.240 Residential use of substandard lots"), [substandard lots](https://snohomish.county.codes/SCC/30.91L.195) may be used for development permitted under this title and associated [incidental uses](https://snohomish.county.codes/SCC/30.91I.030), provided that the development:
Complies with the [setback](https://snohomish.county.codes/SCC/30.91S.160) requirements of SCC [30\.23.030](https://snohomish.county.codes/SCC/30.23.030 "30.23.030 Rural, Resource, Urban (Non-Residential) and other zone categories - Bulk matrix");
Complies with the county health department standards; and
Does not exceed the [lot coverage](https://snohomish.county.codes/SCC/30.91L.150) requirement in SCC [30\.23.030](https://snohomish.county.codes/SCC/30.23.030 "30.23.030 Rural, Resource, Urban (Non-Residential) and other zone categories - Bulk matrix"). (Added by Amended Ord. 11-058, Jan. 25, 2012, Eff date Feb. 16, 2012; Amended by Amended Ord. 21-018, June 9, 2021, Eff date June 19, 2021; Amended by Amended Ord. 22-062, Oct. 26, 2022, Eff date Jan. 1, 2023).
This section is included in your selections.
Use of [lots](https://snohomish.county.codes/SCC/30.91L.120) for residential development when such [lots](https://snohomish.county.codes/SCC/30.91L.120) have substandard area for their present zone is permitted for [single-family dwellings](https://snohomish.county.codes/SCC/30.91D.510) and uses incidental to [single-family dwellings](https://snohomish.county.codes/SCC/30.91D.510) if the [lot](https://snohomish.county.codes/SCC/30.91L.120) was legally created and satisfied the [lot area](https://snohomish.county.codes/SCC/30.91L.130) and [lot width](https://snohomish.county.codes/SCC/30.91L.210) requirements applicable at the time of [lot](https://snohomish.county.codes/SCC/30.91L.120) creation; but such [lots](https://snohomish.county.codes/SCC/30.91L.120) may be used only in the manner and upon the conditions set forth below:
A [person](https://snohomish.county.codes/SCC/30.91P.160) who owns a single [substandard lot](https://snohomish.county.codes/SCC/30.91L.195) or two or more [substandard lots](https://snohomish.county.codes/SCC/30.91L.195) which were not contiguous and under single ownership on December 31, 1989, may use such [lot](https://snohomish.county.codes/SCC/30.91L.120) or [lots](https://snohomish.county.codes/SCC/30.91L.120), either individually or in combination, for [building](https://snohomish.county.codes/SCC/30.91B.200) [sites](https://snohomish.county.codes/SCC/30.91S.340), one [single-family dwelling](https://snohomish.county.codes/SCC/30.91D.510) plus [incidental uses](https://snohomish.county.codes/SCC/30.91I.030) thereto per [building](https://snohomish.county.codes/SCC/30.91B.200) [site](https://snohomish.county.codes/SCC/30.91S.340) if the [building](https://snohomish.county.codes/SCC/30.91B.200) [sites](https://snohomish.county.codes/SCC/30.91S.340) meet the [setbacks](https://snohomish.county.codes/SCC/30.91S.160) and [lot coverage](https://snohomish.county.codes/SCC/30.91L.150) requirements and the county health department standards for the zone in which they are located;
A [person](https://snohomish.county.codes/SCC/30.91P.160) who owns two or more [substandard lots](https://snohomish.county.codes/SCC/30.91L.195) which were contiguous and under single ownership on December 31, 1989, may use such [lots](https://snohomish.county.codes/SCC/30.91L.120), either individually or in combination, for up to two [building](https://snohomish.county.codes/SCC/30.91B.200) [sites](https://snohomish.county.codes/SCC/30.91S.340), one [single-family dwelling](https://snohomish.county.codes/SCC/30.91D.510) plus [incidental uses](https://snohomish.county.codes/SCC/30.91I.030) thereto per [building](https://snohomish.county.codes/SCC/30.91B.200) [site](https://snohomish.county.codes/SCC/30.91S.340) if the [building](https://snohomish.county.codes/SCC/30.91B.200) [sites](https://snohomish.county.codes/SCC/30.91S.340) meet the [setbacks](https://snohomish.county.codes/SCC/30.91S.160) and [lot coverage](https://snohomish.county.codes/SCC/30.91L.150) requirements and the county health department standards for the zone in which they are located. Additional contiguous [substandard lots](https://snohomish.county.codes/SCC/30.91L.195) owned by the same [person](https://snohomish.county.codes/SCC/30.91P.160) may be used for additional [building](https://snohomish.county.codes/SCC/30.91B.200) [sites](https://snohomish.county.codes/SCC/30.91S.340), one [dwelling](https://snohomish.county.codes/SCC/30.91D.490) per [building](https://snohomish.county.codes/SCC/30.91B.200) [site](https://snohomish.county.codes/SCC/30.91S.340) if the additional [building](https://snohomish.county.codes/SCC/30.91B.200) [sites](https://snohomish.county.codes/SCC/30.91S.340) contain at least one acre (43,560 square feet) or 50 percent of the [lot area](https://snohomish.county.codes/SCC/30.91L.130) required for the zone in which such [building](https://snohomish.county.codes/SCC/30.91B.200) [sites](https://snohomish.county.codes/SCC/30.91S.340) are located, whichever is less and if the [building](https://snohomish.county.codes/SCC/30.91B.200) [sites](https://snohomish.county.codes/SCC/30.91S.340) meet the [setbacks](https://snohomish.county.codes/SCC/30.91S.160) and [lot coverage](https://snohomish.county.codes/SCC/30.91L.150) requirements and the county health department standards for the zone in which they are located; and
Notwithstanding the provisions of subsection [(1)(b)](https://snohomish.county.codes/SCC/30.23.240\(1\)\(b\) "30.23.240(1)(b)") of this section, a [person](https://snohomish.county.codes/SCC/30.91P.160) who owns two or more [substandard lots](https://snohomish.county.codes/SCC/30.91L.195) which were established on or after April 15, 1957, and which were contiguous and under single ownership on December 31, 1989, may use such [lots](https://snohomish.county.codes/SCC/30.91L.120), either individually or in combination, for [building](https://snohomish.county.codes/SCC/30.91B.200) [sites](https://snohomish.county.codes/SCC/30.91S.340), one [single-family dwelling](https://snohomish.county.codes/SCC/30.91D.510) plus [incidental uses](https://snohomish.county.codes/SCC/30.91I.030) thereto per [building](https://snohomish.county.codes/SCC/30.91B.200) [site](https://snohomish.county.codes/SCC/30.91S.340) if the [building](https://snohomish.county.codes/SCC/30.91B.200) [sites](https://snohomish.county.codes/SCC/30.91S.340) meet the [setbacks](https://snohomish.county.codes/SCC/30.91S.160) and [lot coverage](https://snohomish.county.codes/SCC/30.91L.150) requirements and the county health department standards for the zone in which they are located.
[Single-family dwellings](https://snohomish.county.codes/SCC/30.91D.510) and [incidental uses](https://snohomish.county.codes/SCC/30.91I.030) established pursuant to subsection [(1)](https://snohomish.county.codes/SCC/30.23.240\(1\) "30.23.240(1)") of this section are permitted uses and are not [nonconforming uses](https://snohomish.county.codes/SCC/30.91N.070).
Existing [single-family dwellings](https://snohomish.county.codes/SCC/30.91D.510) on [substandard lots](https://snohomish.county.codes/SCC/30.91L.195) that are nonconforming only because they do not meet the criteria of subsection [(1)](https://snohomish.county.codes/SCC/30.23.240\(1\) "30.23.240(1)") of this section may improve or add to the [single-family dwelling](https://snohomish.county.codes/SCC/30.91D.510) and may improve, add to or add [incidental uses](https://snohomish.county.codes/SCC/30.91I.030) to the [single-family dwelling](https://snohomish.county.codes/SCC/30.91D.510); provided, that any improvements or additions meet the [setbacks](https://snohomish.county.codes/SCC/30.91S.160) and [lot coverage](https://snohomish.county.codes/SCC/30.91L.150) requirements and the county health department standards for the zone in which they are located.
Existing [single-family dwellings](https://snohomish.county.codes/SCC/30.91D.510) on [substandard lots](https://snohomish.county.codes/SCC/30.91L.195) that are nonconforming because they do not meet the [setbacks](https://snohomish.county.codes/SCC/30.91S.160), [lot coverage](https://snohomish.county.codes/SCC/30.91L.150) requirements, or county health department standards for the zone in which they are located may improve or add to the [single-family dwelling](https://snohomish.county.codes/SCC/30.91D.510) and may improve, add to or add [incidental uses](https://snohomish.county.codes/SCC/30.91I.030) to the [single-family dwelling](https://snohomish.county.codes/SCC/30.91D.510) provided that any improvements or additions do not increase the existing nonconformity or create a new nonconformity with [setbacks](https://snohomish.county.codes/SCC/30.91S.160), [lot coverage](https://snohomish.county.codes/SCC/30.91L.150) requirements, or county health department standards. (Added by Amended Ord. 02-064, Dec. 9, 2002, Eff date Feb. 1, 2003; Amended by Emerg. Ord. 08-090, June 16, 2008, Eff date June 16, 2008; Amended by Emerg. Ord. 08-157, Dec. 10, 2008, Eff date Dec. 16, 2008; Amended by Emerg. Ord. 09-035, Apr. 13, 2009, Eff date Apr. 13, 2009; Reenacted by Ord. 09-101, Sept. 30, 2009, Eff date Oct. 16, 2009; Amended by Amended Ord. 22-062, Oct. 26, 2022, Eff date Jan. 1, 2023).
This section is included in your selections.
If two or more [lots](https://snohomish.county.codes/SCC/30.91L.120) are built upon as a unit, are under one ownership, and when the common boundary line separating the [lots](https://snohomish.county.codes/SCC/30.91L.120) is covered by a [building](https://snohomish.county.codes/SCC/30.91B.200) or permitted group of [buildings](https://snohomish.county.codes/SCC/30.91B.200), the [lots](https://snohomish.county.codes/SCC/30.91L.120) shall be considered a single [lot](https://snohomish.county.codes/SCC/30.91L.120), except as otherwise specifically allowed by this code.
The aggregated [lot](https://snohomish.county.codes/SCC/30.91L.120) shall constitute a single [building](https://snohomish.county.codes/SCC/30.91B.200) [site](https://snohomish.county.codes/SCC/30.91S.340) and the [setbacks](https://snohomish.county.codes/SCC/30.91S.160) required by this title shall then apply to the aggregated [lot](https://snohomish.county.codes/SCC/30.91L.120). (Added by Amended Ord. 02-064, Dec. 9, 2002, Eff date Feb. 1, 2003).
This section is included in your selections.
[Subdivision](https://snohomish.county.codes/SCC/30.91S.710) of a [split parcel](https://snohomish.county.codes/SCC/30.91S.545) shall be permitted along the [UGA boundary](https://snohomish.county.codes/SCC/30.91U.091) line by using the [short subdivision](https://snohomish.county.codes/SCC/30.91S.280) provisions pursuant to chapter [30\.41B](https://snohomish.county.codes/SCC/30.41B "ch. 30.41B Short Subdivisions") SCC or by submittal of a plat pursuant to chapter [30\.41A](https://snohomish.county.codes/SCC/30.41A "ch. 30.41A Subdivisions") SCC. A [split parcel](https://snohomish.county.codes/SCC/30.91S.545) may be subdivided along the [UGA boundary](https://snohomish.county.codes/SCC/30.91U.091) line using one of three methods. First, a [split parcel](https://snohomish.county.codes/SCC/30.91S.545) may be subdivided along the [UGA boundary](https://snohomish.county.codes/SCC/30.91U.091) line into two [lots](https://snohomish.county.codes/SCC/30.91L.120), whereby one [lot](https://snohomish.county.codes/SCC/30.91L.120) remains within the [UGA](https://snohomish.county.codes/SCC/30.91U.090) and the other [lot](https://snohomish.county.codes/SCC/30.91L.120) remains outside the [UGA](https://snohomish.county.codes/SCC/30.91U.090), pursuant to SCC [30\.41B.010(5)](https://snohomish.county.codes/SCC/30.41B.010\(5\) "30.41B.010(5)"). Second, a [split parcel](https://snohomish.county.codes/SCC/30.91S.545) may be subdivided as part of a [short plat](https://snohomish.county.codes/SCC/30.91S.270) application, pursuant to SCC [30\.41B.010(6)](https://snohomish.county.codes/SCC/30.41B.010\(6\) "30.41B.010(6)"). Finally, a [split parcel](https://snohomish.county.codes/SCC/30.91S.545) may be subdivided as part of a plat application, pursuant to SCC [30\.41A.010(3)](https://snohomish.county.codes/SCC/30.41A.010\(3\) "30.41A.010(3)"). (Added by Ord. 06-062, Oct. 4, 2006, Eff date Oct. 15, 2006).
This section is included in your selections.
In urban zones, a [subdivision](https://snohomish.county.codes/SCC/30.91S.710) or [short subdivision](https://snohomish.county.codes/SCC/30.91S.280) that includes attached [single family dwellings](https://snohomish.county.codes/SCC/30.91D.510) may meet the [lot](https://snohomish.county.codes/SCC/30.91L.120) yield and bulk regulations for the zone in which it is located pursuant to this section. Such [subdivisions](https://snohomish.county.codes/SCC/30.91S.710) or [short subdivisions](https://snohomish.county.codes/SCC/30.91S.280) may also include detached [single family dwellings](https://snohomish.county.codes/SCC/30.91D.510) and [accessory dwelling units](https://snohomish.county.codes/SCC/30.91A.035) located on [lots](https://snohomish.county.codes/SCC/30.91L.120) containing a [principal unit](https://snohomish.county.codes/SCC/30.91P.307).
[Building](https://snohomish.county.codes/SCC/30.91B.200) [site](https://snohomish.county.codes/SCC/30.91S.340) yield shall be an interim calculation before determining [lot](https://snohomish.county.codes/SCC/30.91L.120) yield and shall be computed as follows:
Determine area of the [site](https://snohomish.county.codes/SCC/30.91S.340) in square feet;
Divide the area of the [site](https://snohomish.county.codes/SCC/30.91S.340) by the minimum [lot area](https://snohomish.county.codes/SCC/30.91L.130) for the zone under SCC Table [30\.23.032](https://snohomish.county.codes/SCC/30.23.032#Tab30.23.032 "Table 30.23.032 Urban Residential Zones Bulk Matrix");
The resulting quotient is the number of potential [building](https://snohomish.county.codes/SCC/30.91B.200) [sites](https://snohomish.county.codes/SCC/30.91S.340); and
The maximum number of [building](https://snohomish.county.codes/SCC/30.91B.200) [sites](https://snohomish.county.codes/SCC/30.91S.340) shall be determined by rounding up to the next whole unit when a fraction of a unit is equal to five-tenths or greater.
When converting [building](https://snohomish.county.codes/SCC/30.91B.200) [sites](https://snohomish.county.codes/SCC/30.91S.340) into proposed [lots](https://snohomish.county.codes/SCC/30.91L.120):
[Buildings](https://snohomish.county.codes/SCC/30.91B.200) with two [single family attached dwellings](https://snohomish.county.codes/SCC/30.91D.515) count as one [building](https://snohomish.county.codes/SCC/30.91B.200);
[Single family dwellings](https://snohomish.county.codes/SCC/30.91D.510) (detached) count as one [building](https://snohomish.county.codes/SCC/30.91B.200); and
Attached and [detached accessory dwelling units](https://snohomish.county.codes/SCC/30.91A.050) do not count as proposed [buildings](https://snohomish.county.codes/SCC/30.91B.200) or [lots](https://snohomish.county.codes/SCC/30.91L.120) for purposes of this calculation.
Each single [lot](https://snohomish.county.codes/SCC/30.91L.120) shall be at least 1,500 square feet in area.
[Lots](https://snohomish.county.codes/SCC/30.91L.120) in [subdivisions](https://snohomish.county.codes/SCC/30.91S.710) and [short subdivisions](https://snohomish.county.codes/SCC/30.91S.280) created under the provisions of this section shall have a maximum [lot coverage](https://snohomish.county.codes/SCC/30.91L.150) of 55 percent.
There is no minimum [lot width](https://snohomish.county.codes/SCC/30.91L.210).
Attached [single family dwellings](https://snohomish.county.codes/SCC/30.91D.510) have no required [setback](https://snohomish.county.codes/SCC/30.91S.160) from the abutting [lot](https://snohomish.county.codes/SCC/30.91L.120) line.
[Setbacks](https://snohomish.county.codes/SCC/30.91S.160) from other [lot](https://snohomish.county.codes/SCC/30.91L.120) lines shall be:
Five feet from side and [rear lot lines](https://snohomish.county.codes/SCC/30.91L.180), except [buildings](https://snohomish.county.codes/SCC/30.91B.200) taller than 30 feet in the R-7,200 zone shall be set back consistent with SCC [30\.23.310](https://snohomish.county.codes/SCC/30.23.310 "30.23.310 Building separation for buildings taller than 30 feet in the R-7,200 zone").
Fifteen feet from [right-of-way](https://snohomish.county.codes/SCC/30.91R.200) and [private roads](https://snohomish.county.codes/SCC/30.91R.230), except garages must be set back 18 feet from [right-of-way](https://snohomish.county.codes/SCC/30.91R.200) (with the exception of [alleys](https://snohomish.county.codes/SCC/30.91A.150)) or [private roads](https://snohomish.county.codes/SCC/30.91R.230) and [corner lots](https://snohomish.county.codes/SCC/30.91L.140) may reduce the [right-of-way](https://snohomish.county.codes/SCC/30.91R.200) [setback](https://snohomish.county.codes/SCC/30.91S.160) to no less than 10 feet. (Added by Ord. 24-061, Aug. 14, 2024, Eff date Aug. 26, 2024).
This section is included in your selections.
Single-[family](https://snohomish.county.codes/SCC/30.91F.080) detached, single-[family](https://snohomish.county.codes/SCC/30.91F.080) attached, and [duplex](https://snohomish.county.codes/SCC/30.91D.480) [structures](https://snohomish.county.codes/SCC/30.91S.660) in the LDMR and MR zones shall have a minimum [building](https://snohomish.county.codes/SCC/30.91B.200) separation of 10 feet except as otherwise required by subsection [(2)](https://snohomish.county.codes/SCC/30.23.300\(2\) "30.23.300(2)") of this section.
Single-[family](https://snohomish.county.codes/SCC/30.91F.080) detached, single-[family](https://snohomish.county.codes/SCC/30.91F.080) attached, and [duplex](https://snohomish.county.codes/SCC/30.91D.480) [structures](https://snohomish.county.codes/SCC/30.91S.660) in the LDMR and MR zones with a third-[story](https://snohomish.county.codes/SCC/30.91S.630) side yard ingress/egress window shall have a minimum of 15 feet [building](https://snohomish.county.codes/SCC/30.91B.200) separation, provided that [building](https://snohomish.county.codes/SCC/30.91B.200) separation may be reduced to 10 feet when:
The [dwelling units](https://snohomish.county.codes/SCC/30.91D.530) are equipped with approved NFPA 13D automatic sprinkler systems; or
The [dwelling unit](https://snohomish.county.codes/SCC/30.91D.530) boundaries are drawn with a "zero [lot](https://snohomish.county.codes/SCC/30.91L.120) line" on one side of the unit. (Added by Amended Ord. 12-049, Oct. 3, 2012, Eff date Jan. 1, 2013; Amended by Ord. 23-032, June 7, 2023, Eff date June 23, 2023).
This section is included in your selections.
[Buildings](https://snohomish.county.codes/SCC/30.91B.200) exceeding 30 feet in height must provide a minimum 10-foot [setback](https://snohomish.county.codes/SCC/30.91S.160) from side and [rear lot lines](https://snohomish.county.codes/SCC/30.91L.180) except single [family](https://snohomish.county.codes/SCC/30.91F.080) attached, [duplex](https://snohomish.county.codes/SCC/30.91D.480), and [townhouse](https://snohomish.county.codes/SCC/30.91D.525) [buildings](https://snohomish.county.codes/SCC/30.91B.200) where one or more units exceeds 30 feet in height but the height of an end unit is less than or equal to 30 feet may provide a five-foot side [setback](https://snohomish.county.codes/SCC/30.91S.160) from that end unit. (Added by Amended Ord. 22-016, May 4, 2022, Eff date May 19, 2022).
This section is included in your selections.
(Added by Amended Ord. 21-004, Mar. 15, 2021, Eff date Mar. 26, 2021; Repealed by Amended Ord. 21-004, Mar. 15, 2021, Eff date Mar. 26, 2022). |
| Shard | 103 (laksa) |
| Root Hash | 10745774127603843503 |
| Unparsed URL | codes,county!snohomish,/SCC/30.23.210 s443 |