What the homeowner wanted
A rental-ready ADU that could also host family — well-designed, not just functional.
Expansion • ADU Construction
Phinney Ridge Backyard ADU
A 400 sq ft detached ADU in Phinney Ridge — full kitchen, full bath, sleeping loft, and a covered deck, permitted and built by one team.
Overview
- Location
- Phinney Ridge, Seattle
- Timeline
- 6 months
- Scope
- Detached ADU
- Completed
- August 2025
Highlights
- 400 sq ft detached ADU
- Sleeping loft
- Full kitchen with quartz counters
- Full bathroom with tile shower
- Covered deck
- Mini-split HVAC
- Full permit management
- Rental-ready on completion
I'd heard ADU permitting in Seattle was a nightmare and honestly almost didn't move forward. Marco walked me through the land use, building, and inspection process at the start and managed every step himself — I never had to follow up on anything. The build came in on schedule, passed final inspection the first attempt, and it rented out the first week we listed it.
Jordan P.
The Story
Our plan
Design a 400 sq ft DADU with a loft for sleeping, full kitchen, bath, and outdoor deck. Manage the Seattle permitting process start to finish.
Build steps (high level)
- Site survey and permit package
- City of Seattle permit approval
- Foundation and framing
- Mechanical, electrical, plumbing rough-in
- Insulation and sheathing
- Siding, roofing, windows
- Interior finishes and fixtures
- Final inspection and punch list
Results
- Rental-ready ADU
- Passed final inspection first attempt
- Completed on schedule
Ready to saddle up?
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What we did
Services performed on this job
Scope highlights:
- Permit management
- Full Seattle ADU permitting from land use through final inspection.
- Foundation & framing
- Concrete slab foundation and stick-frame construction.
- Kitchen & bath
- Full kitchen with quartz counters and tile bath with walk-in shower.
- HVAC
- Mini-split for heating and cooling.
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