Patio Permit in King County, Washington

Permit required?

Not confirmed, contact the office.

When a permit is usually needed

Before starting any patio project in unincorporated King County

Permit cost and what affects it

Fees are set by the locality and are not published here. See the official fee schedule or contact the office for current amounts.

Permit costs generally depend on the project valuation, the scope of work, and the inspections required. Ask the office how the fee is calculated for your specific project.

Where to apply

• Official permit page
• Permit portal

Frequently asked questions

Do you need a patio permit in King County?

Specific permit requirements for patios in unincorporated King County were not confirmed on the county do-you-need-a-permit page. Open concrete slabs at grade may not require a permit but this was not explicitly stated in the sources reviewed. Contact the King County Permitting Division at 206-296-6600 or PermitQuestions@kingcounty.gov before starting a patio project. Always confirm with the King County Department of Local Services Permitting Division before starting.

How much does a patio permit cost in King County?

Fees are set by King County and are not published here. Contact the office for current amounts.

How long does a patio permit take in King County?

Processing time for a patio permit in King County varies by workload and project scope. Contact the King County Department of Local Services Permitting Division for a current estimate.

Where do you apply for a patio permit in King County?

You can apply through the King County permit portal or contact the King County Department of Local Services Permitting Division directly. The links are listed on this page.

Official sources

• https://kingcounty.gov/en/dept/local-services/certificates-permits-licenses/permits/permits-inspections-codes-buildings-land-use/do-you-need-a-permit
• https://kingcounty.gov/en/dept/local-services/certificates-permits-licenses/permits