Do you need a permit for a solar installation in Seattle, WA?
It depends on the details of your project.
Every solar system needs an electrical permit.
Systems under 7.7 kW can apply online without plan review.
Keep the plans and installation instructions on site for the inspection.
A person last checked these rules on October 19, 2026. This is guidance only, so confirm with Seattle before you build.
Check your exact lot
Your zoning district sets the setbacks, and a flood zone can change the permit answer. Enter your address to see both.
Permits a solar installation can need in Seattle
| Permit | When it applies |
|---|---|
| Electrical permit | Seattle requires an electrical permit for solar. Systems under 7.7 kW can apply online without plan review. |
Local details
- Call 811 at least a few days before you dig footings or post holes. Utility locating is free.
- HOA covenants and deed restrictions can be stricter than city rules. Check yours before you build.
How to apply
- Seattle Services Portal
- SDCI common projects
- SMC 23.44, Neighborhood Residential
- Phone: (206) 684-8600
Common questions
- When does a solar installation need an electrical permit in Seattle?
- Seattle requires an electrical permit for solar. Systems under 7.7 kW can apply online without plan review.
- Where do I apply for a solar installation permit in Seattle?
- Apply through Seattle Services Portal, or call (206) 684-8600.
Sources
- Seattle SDCI, Electrical Permit. Checked 2026-10-22
You need an electrical permit any time electrical wiring is installed, altered, extended, or connected to any electrical equipment... Small solar PV systems – If your solar PV system is rated under 7.7KW, you can apply online without plan review.