District Standards—Density and Dimensions | Zoning Districts
RESIDENTIAL ZONES
STANDARDS
R-1 35’ 18’
R-4 35’ 18’
R-6 35’ 18’
R-8 35’ 18’
R-12
R-18
Structures
60’ 18’
60‘ 18’
Detached Accessory Dwelling (when conforming to Detached Accessory Dwelling setbacks)
Development Conditions:
(1) These standards may be modified under the provisions for zero lot line and townhouse developments.
(2) Mobile home parks shall be allowed a density of up to six dwelling units per acre.
(3) For townhouse and apartment development, the setback shall be a minimum of 20 feet along any property line abutting R-1 through R-8.
(4) See SDC 21.04.030I for information on minimum density calculations.
(5) When constructed in accordance with Acessory Dwelling Unit regulations in SDC 21.05.010C.(5)a.
(6) The maximum lot coverage may be increased once by five percentile points, if a covered outdoor living space or an accessory dwelling unit is built on site. For the purposes of this section, a covered outdoor living space includes any structure with a roof that is not fully enclosed by walls.
(7) The front yard setback along any arterial streets shall be 30 feet.
(8) Side yard setbacks may be a minimum of five (5) feet when the abutting property is zoned R-8, R-12, or R-18.
(9) Only applies to stand-alone detached accessory dwelling units. Does not apply to detached accessory dwelling units that are combined with other structures or improvements such as pool houses, outdoor kitchens, detached garages, covered patios, etc. Standard minimum structure setbacks apply to detached accessory dwelling units that are combined with other structures and improvements.
Effective | January 1, 2022 Errata Revisions | November 17, 2022
Title 21: Sammamish Development Code | 201
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