Detached ADU in Washington
Greenpod Design
1531 West Sims Way, Port Townsend, WA 98368
Greenpod Design builds custom DADUs in Washington using SIP construction and sustainable materials. They handle permits, ADA-compliant design, and energy-efficient builds. WA law allows up to two ADUs per lot, up to 1,000 sq ft.
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Blue Lake Construction
12721 Northeast Bel Red Road, Bellevue, WA 98005
Blue Lake is a family-owned Washington State ADU contractor specializing in custom ADUs, DADUs, granny flats, and full-service construction. They offer fixed pricing, transparent communication, and skilled teams for residential and investment projects.
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Evola Builds LLC
Poulsbo, WA 98370
Evola Builds LLC, led by Michael and Amber Evola, offers residential renovation and construction services including bathroom remodels, ADU work, garage conversions, and structural modifications, collaborating closely with architects and homeowners.
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North West Builders & Renovations
1135 Lake Washington Boulevard North, Renton, WA 98057
Avead
3600 136th Place Southeast, Bellevue, WA 98006
Avead is an ADU contractor offering full-service accessory dwelling unit construction, including attached, detached, junior ADUs, garage conversions, and custom builds. With 20+ years of experience, transparent pricing, and a 5-year warranty.
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Signature ADU
La Center, WA 98629
Signature ADU is an experienced ADU builder offering full-service design and construction. Their team includes experts in architecture, general contracting, and project management, handling detached ADUs, garage conversions, granny flats, and in-law suites from start to finish.
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Gravity Builders LLC
17422 108th Avenue Southeast, Renton, WA 98055
Gravity Builders LLC is a licensed ADU contractor and custom home builder in Renton, WA. Specializing in ADU/DADU construction, custom homes, outdoor living spaces, and concrete work, they deliver quality craftsmanship with transparency and integrity.
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Deane Home Services
17837 1st Avenue South, Normandy Park, WA 98148
Deane Home Services builds ADUs in South King County, WA, including garage conversions, basement remodels, and detached backyard cottages. Licensed, bonded & insured. Serving Kent, Renton, Federal Way & more.
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Abel Construction LLC
Black Diamond, WA 98010
Abel Construction LLC builds barndominium ADU shells in Black Diamond & Rochester. Ideal for rentals, guest suites & extra living space. Durable, cost-effective & customizable structures for property owners.
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Microhouse
114 North 42nd Street, Seattle, WA 98103
Microhouse is a Seattle-based ADU builder specializing in custom detached ADUs (DADUs). They guide homeowners through zoning, design, and construction. Seattle permitted 551 DADUs in 2022, with a 40% increase in 2023. Microhouse offers site assessments and tailored DADU solutions.
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Precision Tile & Home Remodeling
5508 Koufax Ln, Pasco, WA 99301
Precision Tile & Home Remodeling LLC in Kennewick, WA offers ADU, guest house, and in-law suite construction, plus tile work and home remodeling. Quality materials, clear communication, and on-budget delivery are their focus.
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Neil Kelly Washington
804 North Alberta Street, Seattle, WA 97217
Neil Kelly Washington offers ADU design and build services in the Northwest, including detached ADUs, garage conversions, and attached units. Their team navigates local permits, balances design with functionality, and helps homeowners add value through custom accessory dwelling units.
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Alta Group Seattle
500 Southeast Everett Mall Way, Everett, WA 98208
Alta Casa
5123 Northeast 94th Avenue, Vancouver, WA 98662
Alta Casa Remodeling is a Vancouver, WA ADU builder specializing in accessory dwelling units, garage conversions, in-law suites, and home additions. They also offer kitchen, bathroom, and full home remodels, backed by a one-year workmanship warranty.
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Avio Homes
10908 62nd Street East, Puyallup, WA 98372
Avio Homes is a Seattle-based ADU contractor specializing in detached ADUs, backyard cottages, and in-law suites. Serving Seattle, Tacoma, and Olympia, they handle design, permitting, and construction with local zoning expertise.
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Other cities in Washington
What you need to know
Searching for top Detached ADU ADU Contractors in Washington? Our directory highlights trusted local professionals who specialize in designing and building accessory dwelling units (ADUs).
Working with a qualified Detached ADU ADU Contractor in Washington ensures your ADU project meets local building codes, zoning laws, and permit requirements. Whether you're planning a detached ADU, garage conversion, or backyard cottage, experienced Detached ADU professionals can guide you through every step.
Washington homeowners are increasingly investing in ADUs to create additional living space, generate rental income, or support multigenerational living. The Detached ADU experts featured here bring local expertise and proven experience to help make your project a success.
Browse our listings to find the best Detached ADU ADU Contractors in Washington, and get started today.