Solar Permit in Seattle, Washington

Permit required?

Yes, a permit is required.

When a permit is usually needed

Before installing any residential solar photovoltaic system 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 solar permit in Seattle?

A permit is required for all residential solar photovoltaic installations in Seattle. SDCI issues both electrical and construction permits for solar systems. Systems below 12 kW AC output require supporting documents and a one-line diagram; larger systems require full plan sets. Roof structural requirements and fire setbacks also apply. Always confirm with the Seattle Department of Construction and Inspections before starting.

How much does a solar permit cost in Seattle?

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

How long does a solar permit take in Seattle?

Processing time for a solar 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 solar 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
• https://www.seattle.gov/DPD/publications/CAM/cam420.pdf