Designers and architects license in Washington

Who licenses it
Washington Board of Architecture and Washington Board of Professional Engineers ↗ · engineer boards ↗
Checked November 8, 2026. Rules and thresholds change; confirm with the board before you start work.
Homeowners: checking a pro
Ask for the license number, then look it up on the board's site above. On ExpertMarketplace every listing in this trade in Washington shows the number and whether we've checked it.
Pros: listing on ExpertMarketplace
Add your license number, state and expiry date when you create your page. A listing in this trade in Washington can't go live without it. Add your insurance too: listings show "Insured" or "No insurance on file" to every visitor.
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Designers and architects in Washington's biggest cities

Other Washington license guides