Detached ADU in Washington
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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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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Pelletier Construction Group
1150 North 84th Street, Seattle, WA 98103
Integrity Remodeling Inc
1303 North Division Street, Spokane, WA 99202
Integrity Remodeling Inc is a Spokane, WA contractor specializing in ADU construction, garage conversions, and accessory dwelling units. Services include backyard cottages, basement apartments, in-law suites, and rentable ADUs for added property value.
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Pacific Homes Direct
1650 Atlantic Avenue, Woodland, WA 98674
Pacific Homes Direct in Woodland, WA offers customizable ADUs starting at $49,999. Serving Western Washington and Oregon, they provide granny flats, in-law suites, and backyard cottages with full-service support and factory warranty included.
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J Hanby LLC
Edmonds, WA 98020
J Hanby LLC offers ADU and basement conversion services in the Eastside area. Specializing in detached ADUs, garage conversions, granny flats, and basement renovations, they help homeowners maximize property value and ROI.
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Cast Architecture
115 North 36th Street, Seattle, WA 98103
Cast Architecture specializes in ADU and backyard cottage design in Seattle since 2009. With 80+ projects, their Cedar Cottage is pre-approved by Seattle & Kirkland. Award-winning designs include Widner Cottage and Lichtenstein Studio. Visit castcottages.com.
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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.