Permits, inspections, and codes - building and land use

Find out if you need a permit for your project. 

Find out how to apply for permits involving flammable liquid tanks, fireworks, fire systems, and special events.

Find report readouts on new applications, issued permits, and permit performance.

Permitting activities in unincorporated King County that may be of special interest to the public because of their nature, size, or location

Learn more about projects that require public notice, and how to research permitting records.

For information on the State Enviornmental Policy Act (SEPA) process within King County.