Browse verified contractors across Seattle, Tacoma, and the Puget Sound who specialize in building accessory dwelling units.
Top-rated ADU contractors trusted by homeowners across the Puget Sound
From idea to completed ADU in three simple steps
Search our directory of 23+ vetted ADU builders. Filter by city, ADU type, rating, and price range.
Reach out directly to builders you like, or submit one quote request and we'll match you with the best fit.
Your builder handles design, permitting, and construction. Move in or start generating rental income.
Real experiences from families who built ADUs
"We were overwhelmed by the ADU permitting process until we found our builder through this directory. They handled everything from design to final inspection. Our backyard cottage is now generating $2,800/month in rental income."
"Having a directory that focuses specifically on ADU builders in our area was invaluable. We could compare experience levels, read real reviews, and find someone who understood local zoning. Highly recommend this resource."
Get matched with experienced, local builders who know Puget Sound permitting inside and out.
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