King County Zoning: does not apply
Development Conditions: does not apply
Water District: does not apply
Sewer District: does not apply
Water & Sewer District: does not apply
Fire District: does not apply
School District: does not apply
Does my project need a permit?
In general, you need a building permit to change the occupancy of, construct, enlarge, alter, repair, move, or demolish a building or structure. Some common property-improvement projects don’t require a building permit. Learn more.
How to use iMap
Look up your property by address or parcel number
Click on your parcel on the map, and open the Assessor’s Report from the popup screen
Click the Property Detail button near the top of the Assessor’s Report
Find the permit history near the bottom of the page
How do I apply for a permit?
Find step-by-step instructions on kingcounty.gov’s Local Services pages for the type of permit you need.
Commercial and Multi-family
For new construction, and additions/alternations to existing buildings, including commercial tenant improvements.
Single Family and Duplex
For new construction, and additions/alternations to existing buildings, including detached garages and mechanical systems.
For clearing and grading, rezoning, right-of-way use, land division, tree removal, and other land permits.
Fire permits for fireworks stands and displays, sprinkler systems, special event (fire safety), and installation and decommissioning of flammable liquid tanks, such as propane/LPG tanks.
For amusement/dance places, amusement devices, charitable solicitation, entertainers and managers, junk shops and wagons, massage businesses and bathhouses, outdoor musical entertainment, pawnshops, secondhand dealers, shooting ranges.
Not seeing the type of permit you’re looking for? Some permits are administered by different agencies, and aren’t part of our permitting system.
- To apply for a plumbing or gas piping permit, see the Department of Public Health
- To apply for an electrical permit, see the Washington State Department of Labor & Industries
- To apply for an on-site sewage system (septic) permit, see Environmental Health Services
- To apply for food handler or food business permits visit the Department of Public Health
Find more information about different kinds of permits in Unincorporated King County.
For permit history prior to 1980 you may need to submit a records request. To contact Permitting records services send your request by email to email@example.com.