Patio Permit in Seattle, Washington

Permit required?

No permit is typically required.

When a permit is usually needed

Patio and concrete slabs installed on grade do not require a permit in Seattle

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 Seattle?

Patio slabs and concrete flatwork installed on grade do not require a building permit in Seattle per the SDCI do-you-need-a-permit guidance. Grading or retaining walls associated with a patio project may have separate permit requirements. Confirm with SDCI if your project includes structural elements or is near an environmentally critical area. Always confirm with the Seattle Department of Construction and Inspections before starting.

How much does a patio permit cost in Seattle?

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

How long does a patio permit take in Seattle?

Processing time for a patio permit in Seattle varies by workload and project scope. Contact the Seattle Department of Construction and Inspections for a current estimate.

Where do you apply for a patio permit in Seattle?

You can apply through the Seattle permit portal or contact the Seattle Department of Construction and Inspections directly. The links are listed on this page.

Official sources

• https://www.seattle.gov/sdci/permits/do-you-need-a-permit