Kent, WA · DADU
DETACHED ADU Builder in Kent, WA
A detached accessory dwelling unit (DADU) is a fully independent residence on your existing single-family lot. We design and build DADUs that meet rental code, hold long-term value, and look like they belong — not like a kit dropped in the yard. Every project starts with a feasibility study and ends with a turn-key handover.
Build timeline
6–8 months
Typical sqft
400–1,000 sqft
Kent cost
$286K – $462K
Permit window
8–12 wk
What detached adu looks like in Kent
DETACHED ADU projects in Kent are shaped by local zoning (SR-1 / SR-3 / SR-4.5 / SR-6 / SR-8), a lot minimum of 5,000 sqft, and the kinds of sites we see day-to-day: East Hill, West Hill, Kent Valley. Below is what every Kent DADU project from Golden State includes — fixed-price, one contract, one warranty.
- ✓Stamped architectural set
- ✓Structural + MEP engineering
- ✓Permit submittal & city liaison
- ✓Foundation, framing, weather envelope
- ✓Finish carpentry, cabinetry, fixtures
- ✓Final inspection + warranty package
Other services in Kent
More from Golden State ADU in Kent
AADU
ATTACHED ADU in Kent
Seamlessly integrated additions — basement, ground-floor, or wing conversions that maintain the architectural integrity of your existing home.
Garage
GARAGE CONV. in Kent
Convert an under-used garage into a high-end studio, office, or rental quarter without surrendering your driveway.
Additions
MODERN ADDITIONS in Kent
Structural expansions for growing families — second stories, primary suites, kitchen extensions. Steel, glass, and Pacific Northwest materials.
GC
GENERAL CONTRACTING in Kent
Full-service general contracting for remodels, renovations, and ground-up custom homes throughout the Puget Sound region.
Feasibility
FEASIBILITY STUDIES in Kent
Before you commit, we analyze zoning, lot coverage, setbacks, utilities, and ROI so you have a real number — not a guess.
DETACHED ADU across the Puget Sound
DETACHED ADU builders in nearby cities
Start your Kent DADU feasibility
$1,500 buys lot analysis, Kent zoning verification, and a fixed price you can build a budget on.
Request Kent feasibilityFrequently asked
What is included in DETACHED ADU in Kent?
Our DETACHED ADU in Kent scope includes design through completion: feasibility, schematic design, construction documents, permit submittal and review management, construction with one self-performed framing crew plus L&I-licensed MEP subcontractors, all required WA inspections, certificate of occupancy, and warranty. One contract, one license number, one warranty — not a coordination headache across five vendors.
How is DETACHED ADU in Kent different from a generic remodel?
DETACHED ADU in Kent carries code, permit, and construction details that a one-off remodeler hasn't repeated enough times to optimize. Examples: IECC R406 envelope path selection, fire separation when units are within 5 ft, side-sewer slope requirements, IRC Appendix AQ when permitted as a tiny house, separate utility metering rules. We do this scope every month — repetition is what makes our first-cycle approval rate and our schedule reliability stand out.
What is the typical price range for DETACHED ADU in Kent?
DETACHED ADU in Kent pricing in 2026 lands in the $295–$465/sqft all-in range depending on size, lot conditions, finish tier, and AHJ. The wide range is real — small lots with difficult access, soils requiring pier-and-beam, or service upgrades push the upper end; flat lots with good access and a catalog plan land at the lower end. Our feasibility report gives you a ±15% number tailored to your specific lot in two weeks.