Other agency services
Our lobby services are closed. All permit applications can now be submitted online.
King County Permits has suspended lobby services in our Snoqualmie and Vashon Island offices. See available and alternative services
The King County, Department of Executive Services, Real Estate Services (RES) provides special use permits for work or events on King County owned property, such as a park or drainage facility. This permit is also required for temporary uses of King County right-of-way. RES also manages utility franchise agreements.
Seattle - King County Public Health provides plumbing permits for unincorporated King County, Cities of Seattle, Beaux Arts and Clyde Hill.
The Washington State Department of Labor and Industries (L&I) provides electrical permits for unincorporated King County.
Seattle - King County Public Health provides septic system, or "on-site sewage system" (OSS) permits for all of King County.
King County requires business licenses for regulated activities.
Hydraulics project approval permit for property within unincorporated King County.
Historic preservation and landmark information from the King County Department of Permitting and Environmental Review.
Road vacation permit information for property within unincorporated King County.