ADU Contractors near Kent, WA

Bicknell Builds

19616 Southeast 310th Place, Kent, WA 98042 7.5 miles

Bicknell Builds offers ADU construction in the greater Seattle area, including detached ADUs, backyard cottages, granny flats, and in-law suites. Ideal for rental income, family housing, or added property value.

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Seattle ADU

509 Olive Way, Seattle, WA 98101 16.5 miles

Seattle ADU is a Seattle-based contractor specializing in accessory dwelling units, including detached ADUs, garage conversions, attached ADUs, and JADUs. They manage design, permitting, and construction for homeowners seeking additional living sp... read more

Harjo Construction

4900 15th Avenue Northwest, Seattle, WA 98107 20.5 miles

15 years in business

Harjo Construction builds AADUs & DADUs in Seattle with 300+ projects since 2010. Costs range $275K–$650K, max 1,000 sq ft, 4–6 month build time. Seattle removed owner-occupancy rules, boosting ADU rental potential.

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Alta Group Seattle

500 Southeast Everett Mall Way, Everett, WA 98208 36 miles

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Cascadia ADU

901 1st Street, Snohomish, WA 98290 37 miles

10 years in business Eco-Friendly

Cascadia ADU builds attached, detached, garage & basement ADUs across King, Snohomish, Skagit & Chelan Counties, WA. Full-service design, permitting & construction completed in 8–10 weeks with 10+ years experience.

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ADU Builders Seattle

4712 South Morgan Street, Seattle, WA 98118 11.1 miles

17 years in business Licensed Eco-Friendly

ADU Builders Seattle (Maksymov Brownstone LLC) specializes in detached ADU construction across Seattle & King County. Licensed & bonded, they handle zoning, permits, and SDCI approvals. Services include backyard cottages, two-story units, ... read more

Other cities in Washington

• Bainbridge Island
• Battle Ground
• Bellevue
• Bellingham
• Black Diamond
• Bothell
• Bremerton
• Burbank
• Camas
• Edmonds
• Everett
• Fall City
• Federal Way
• Kennewick
• Kirkland

What you need to know

ADU Contractors in Kent, WA: Building in the Heart of the Green River Valley

Kent, Washington, situated in the Green River Valley between Seattle and Tacoma, is one of the fastest-growing cities in King County. With a booming population and a strong demand for affordable housing, ADU contractors in Kent, WA are busier than ever helping homeowners maximize their property value. Whether you're looking to build a detached backyard cottage, a garage conversion, or an attached accessory dwelling unit, working with experienced ADU contractors in Kent is essential to navigating the city's specific zoning and building requirements.

Kent ADU Regulations and Zoning Requirements

Before breaking ground, homeowners and contractors must understand Kent's local ADU ordinances, which fall under the broader framework of King County and Washington State ADU laws. Kent follows Washington State's HB 1337, passed in 2023, which significantly expanded ADU rights statewide. Key regulations that your ADU contractor in Kent must be familiar with include:

• Lot size requirements: Most single-family residential zones in Kent allow ADUs, but minimum lot sizes and setback requirements must be carefully reviewed.
• Height limits: Detached ADUs in Kent are generally subject to height restrictions that align with the surrounding residential zone standards.
• Owner-occupancy rules: Thanks to HB 1337, Washington State eliminated owner-occupancy requirements, giving Kent homeowners more flexibility.
• Utility connections: ADUs in Kent typically require separate utility connections or shared connections with the primary dwelling, depending on the unit type.
• Permits: All ADU projects require building permits through the City of Kent's Permit Center, and your contractor must ensure full compliance with the International Residential Code (IRC) as adopted by Washington State.

Why Hire a Local ADU Contractor in Kent, Washington?

Hiring a local ADU contractor in Kent offers significant advantages. Local professionals are familiar with Kent's specific soil conditions near the Green River floodplain, which can affect foundation design and construction costs. They also have established relationships with the City of Kent's permitting department, helping to streamline approvals and avoid costly delays. A knowledgeable Kent ADU contractor will also be aware of any stormwater management requirements enforced by the City, which are particularly relevant given the area's proximity to the Green River and its associated drainage systems.

Types of ADUs Commonly Built in Kent, WA

Experienced ADU builders in Kent typically work on a variety of unit types to suit different property layouts and homeowner goals:

1. Detached Accessory Dwelling Units (DADUs) – standalone backyard cottages
2. Attached ADUs – additions connected to the primary home
3. Garage Conversion ADUs – transforming existing garages into livable space
4. Basement ADUs – converting lower levels into independent units

Start Your Kent ADU Project Today

With housing demand continuing to rise across King County, building an ADU in Kent is a smart investment. Partnering with a qualified, licensed ADU contractor in Kent, Washington ensures your project meets all local codes, stays on budget, and adds lasting value to your property. Contact a trusted local ADU specialist today to discuss your vision and get started on permits.