King County buildings must meet the Washington State Energy Code under RCW 19.27A, one of the strictest in the nation; the county's Strategic Climate Action Plan also drives green-building incentives toward carbon neutrality by 2050.
All new construction and major remodels in King County must comply with the Washington State Energy Code (WSEC), adopted statewide under RCW 19.27A and updated on a three-year cycle by the State Building Code Council. The 2021 WSEC restricts most natural-gas space and water heating in new commercial and large multifamily projects, pushing electrification. King County's Strategic Climate Action Plan (SCAP, 2020 update) targets carbon neutrality by 2050, and the King County Green Building Program offers incentives, technical assistance, and LEED/Built Green tracking for unincorporated projects. Local Services Permitting reviews energy-code compliance alongside structural plan review.
Failing energy-code compliance is a building-code violation under RCW 19.27A, with corrections required before final permit approval and certificate of occupancy issuance.
Kent, WA
Kent decibel limits follow WAC 173-60 and KCC 8.05 using EDNA zones. Residential receiving limit is 55 dBA day and 45 dBA night. Commercial sources are cappe...
Kent, WA
Kent industrial sources are capped at 70 dBA day and 65 dBA night at another industrial property, but only 60 dBA day and 50 dBA night when received at a res...
Kent, WA
Commercial trucks over 10,000 pounds GVWR generally cannot park on Kent residential streets except for active loading. Warehouse districts and truck routes h...
Kent, WA
Kent follows Washington State Building Code EV-ready requirements for new multifamily and commercial buildings. Public chargers exist at Kent Station and sev...
Kent, WA
Kent driveway aprons require Public Works approval under KCC Title 6. New or widened driveways need a right-of-way construction permit, and vehicles must not...
Kent, WA
Kent has no city requirement to split shared fence costs with a neighbor. Washington common law controls boundary fences. Survey the property line before bui...
Side-by-side rule comparisons with other cities in King County.
See how Kent's green building code rules stack up against other locations.
Help us keep this page accurate. If you notice an error or outdated information, let us know.