3 county-level rules, plus city-specific rules for 1 city in King County, Washington.
Verified from official government sources
HVAC equipment in unincorporated King County must meet KCC 12.86 limits of 55 dBA day and 45 dBA night at adjacent property lines. Setback, sound blankets, or enclosures are often required for nighttime compliance.
Bars and nightclubs in unincorporated King County must meet KCC 12.86 commercial-to-residential limits of 57 dBA day and 47 dBA night. WSLCB liquor license conditions often impose outdoor music curfews.
Generators in unincorporated King County must meet KCC 12.86 limits of 55 dBA day and 45 dBA night at residential boundaries. Emergency operation during declared power outages is exempt under WAC 173-60-050.
1 cities in King County have their own noise from specific sources rules. Each link goes to that city's dedicated page with code citations.
See every category we cover for King County — parking, noise, fences, fires, animals, pools, and more.
King County Ordinance Hub →