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
A Seattle-area luxury construction firm combining 17+ years of craftsmanship with expert design to build custom homes, home additions, and ADUs/DADUs.
Award-winning Seattle remodeling contractor specializing in ADUs, backyard cottages, kitchen remodels, and home additions. Certified Sustainable Building advisor.
Premier Seattle ADU and DADU contractor offering custom builds, prefab plans pre-approved by the City of Seattle, and full-service design and engineering.
Tacoma's premier DADU contractor with 40 years of home building experience. Complete turnkey solution from design and permitting to finished construction.
Licensed ADU specialists offering end-to-end services including consultation, design, permitting, and construction. 3-month turnaround on DADU turnkey projects.
Licensed, insured, bonded. Free estimates. Premium materials. ADU design and construction from start to finish.
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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