Build Your ADU in King County. Done-For-You, Permit to Keys.

“We were nervous about the $520K budget but Loren walked us through every line item before we signed anything. Permit came back in 7 weeks — faster than neighbors who used a different contractor — and we're now renting our Ballard DADU for $2,800/month. ROI is real.”

“Our Capitol Hill lot is only 4,500 sq ft and we assumed a DADU was out of the question. The team found a rear-yard setback solution that fit a 680 sq ft unit without touching our existing garage. We had no idea SMC 23.44.041 gave us that flexibility.”

“We converted our detached garage in Phinney Ridge into a 550 sq ft ADU for my mother-in-law. The existing slab needed zero modification — they handled the structural engineering in-house. Total cost came in at $185K, which was $30K under the estimate we got from another builder.”

“Permitting in Seattle scared us away from starting for two years. Carlos and Loren handled every submission and every DCI comment — we never once had to call the city. Project went from signed contract to certificate of occupancy in 11 months.”

“We have a 6,200 sq ft lot in Rainier Beach and they designed a 780 sq ft DADU that's energy-code compliant and already pre-approved under Seattle's ADU fast-track program. Framing started three weeks after permit issuance. Extremely organized process.”

“I was quoted $90K just for architectural drawings by another firm before I found Seattle ADU Builders. Their in-house design-build model cut that overhead completely. Our Wallingford basement conversion came in on budget and the tenant moved in ahead of schedule.”