King County Permitting Division manages development only for unincorporated areas of the county. Incorporated cities, such as Seattle, Bellevue, and Kent, maintain their own independent building departments and permit portals. Development in unincorporated areas is subject to specific critical area overlays, including flood hazard zones, seismic hazard areas, and steep slope restrictions.
King County enforces a strict Critical Areas Ordinance that requires specialized reports and buffers for development near wetlands, streams, and wildlife habitat conservation areas.
Cómo encaja con el estado
La autoridad estatal aquí es Washington Department of Labor & Industries. El expediente del condado no la reemplaza — añade la oficina de permisos, las reglas locales y el camino real de presentación.
Fuente · King County Department of Local Services, Permitting DivisionÚltima verificación · 05 / 2026