Building Setbacks & Zoning in Chelan County, WA (2026)
3 rules for unincorporated Chelan County, Washington.
Verified from official government sources
Setback Rules
In unincorporated Chelan County's RR20 district (Rural Residential/Resource, one dwelling unit per 20 acres), Chelan County Code § 11.08.020(5) sets minimum yard setbacks: twenty-five feet front (or fifty-five feet from the street centerline), twenty feet rear, and five feet side, rising to twenty-five feet on a corner lot's street side.
Chelan County RR20 Setbacks: Front, Rear, Side
Some RestrictionsChelan County Code § 11.08.020(5)
Minimum Setback Distances. Minimum setback requirements shall be as provided in this section except when abutting commercial agricultural lands (AC), and riparian and shoreline areas, or as increased by the provisions of this title: (A) Front yard: twenty-five feet from the front property line or fifty-five feet from the street centerline, whichever is greater. (B) Rear yard: twenty feet from t...
Structure Height Limits
In unincorporated Chelan County's Rural Residential/Resource district (RR20, one dwelling unit per 20 acres), Chelan County Code § 11.08.020(3) caps building height at thirty-five feet. The identical limit applies in the adjacent RR10 district under § 11.10.020(3). Community Development checks every proposal against the cap during permit review, and exceeding it without a variance is a civil code violation.
Chelan County RR20 Zone: 35-Foot Height Limit
Some RestrictionsChelan County Code § 11.08.020(3)
All development in this zone shall meet the applicable provisions of the Chelan County Code, including without limitation the following: ... Maximum building height: thirty-five feet.
Lot Coverage Limits
In unincorporated Chelan County's RR20 district (Rural Residential/Resource, one dwelling unit per 20 acres), Chelan County Code § 11.08.020(4) limits lot coverage: buildings and structures cannot occupy more than thirty-five percent of the lot. The identical thirty-five percent ceiling repeats in the adjacent RR10 district under § 11.10.020(4), and Community Development checks it at permit review.
Chelan County RR20 Zone: 35% Lot Coverage Cap
Some RestrictionsChelan County Code § 11.08.020(4)
All development in this zone shall meet the applicable provisions of the Chelan County Code, including without limitation the following: ... Maximum lot coverage: buildings and structures shall not occupy more than thirty-five percent of the lot area.
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