The county building department in King County administers construction permits and enforces building codes for unincorporated areas and municipalities that contract county services rather than maintaining their own building divisions. There are 26 Building Departments locations in King County, Washington.
Property owners in unincorporated King County should verify with the county building department whether their parcel falls under county or municipal jurisdiction before submitting permit applications, as this affects which office handles the review and which codes apply.
List of King County, Washington Building Departments
Kent City Zoning
Kirkland Planning Department
Woodinville Building Department And Zoning
Bothell Zoning
Kirkland City Building Department
Seattle Planning Department
Bellevue Permits
Federal Way Permits And Zoning
Northwest Building Department
Redmond Planning Department
Tukwila Planning Department
Auburn Permits
Des Moines Building Department
Duvall Planning Department
Issaquah Building Department, Planning, Zoning And Permits
Maple Valley Building Department
Pacific Building Department
Seattle Zoning
Washington State Permits
Redmond Permits And Zoning
Renton Building Department, Planning, Zoning And Permits
Seattle Permits
Snoqualmie Building Department
Bothell Building Department
Burien City Permits
Enumclaw Planning Department
Contractors and property owners in King County should keep copies of all issued permits, approved plans, and inspection sign-off cards at the job site for the duration of construction. Final inspection requests must be scheduled in advance, and the certificate of occupancy is issued only after all required inspections pass.
You may also find Building Departments locations in neighboring counties including King, Snohomish.