Building Setbacks & Zoning in Grays Harbor County, WA (2026)
3 rules for unincorporated Grays Harbor County, Washington.
Verified from official government sources
Setback Rules
In the R-1 Restricted Residential District, unincorporated Grays Harbor County's baseline single-family zone, Grays Harbor County Code § 17.28.040 requires a 25-foot front yard, a 15-foot side yard and a 25-foot rear yard on a lot of at least 15,000 square feet. Denser residential districts like R-2 scale the side and rear yards to lot width, depth and building height instead of a flat number.
Grays Harbor County Residential Setback Minimums
Some RestrictionsGrays Harbor County Code § 17.28.040
A.Minimum Lot Size. Fifteen thousand square feet, or the larger lot-area required by health regulations for the intended method of sewage disposal and water system.B.Minimum Yard Requirements.1.Front Yard. Twenty-five feet.2.Side Yard. Fifteen feet.3.Rear Yard. Twenty-five feet.C.Maximum lot coverage by impervious surface: thirty-three percent of total lot area.D.Maximum Density. One dwelling u...
Structure Height Limits
In unincorporated Grays Harbor County, towers, chimneys, water tanks and similar roof features may rise above a zoning district's height limit under Grays Harbor County Code § 17.60.080, but only within tight caps and only for an accessory use. Public and semi-public buildings, including schools, churches and hospitals, get a separate allowance to reach 50 feet in districts capped at 35 feet or less, if their yards are widened to match.
Grays Harbor County Building Height Restrictions
Some RestrictionsGrays Harbor County Code § 17.60.080
A.Towers, gables, scenery lofts, cupolas, water tanks, similar structures and mechanical appurtenances may be erected on a building to a height greater than the limit established in any district.1.No such exception shall cover more than fifteen (15) percent of the area of the lot.2.No such exception shall be used for other than a use incidental or accessory to the main use. ... C.In any distric...
Lot Coverage Limits
Unincorporated Grays Harbor County caps how much of a residential lot can be covered by buildings, driveways and other impervious surface at thirty-three percent. County Code § 17.32.040(C) sets that limit for the R-2 General Residential District, and the identical thirty-three percent ceiling repeats in the G-1, G-5, R-1, RR and Lake Quinault districts.
Maximum Lot Coverage in Grays Harbor County
Some RestrictionsGrays Harbor County Code § 17.32.040(C)
C.Maximum lot coverage by impervious surface: Thirty-three percent of total lot area.
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