Carriage Houses Northwest

4401 80th Street Northeast, Marysville, WA 98270 28.7 miles

Carriage Houses NW is a Pacific Northwest ADU builder specializing in infill housing. They develop ADUs, duplexes, and townhomes, partner with homeowners, and offer fee-to-build services, leveraging WA State HB 1110 and HB 1337 legislation.

BelRed Construction - Bathroom Remodeling

13629 Northeast Bel Red Road, Bellevue, WA 98005 44.8 miles

Licensed 13 years in business Eco-Friendly

Our team specializes in ADU construction and home remodeling, creating functional, well-designed spaces with quality craftsmanship and attention to detail.

Alta Group Seattle

500 Southeast Everett Mall Way, Everett, WA 98208 29.8 miles

Model Remodel

1111 West Nickerson Street, Seattle, WA 98119 37.6 miles

Seattle's 2019 ADU law changes made it easier to build accessory dwelling units on single-family lots. DADUs can't exceed 50% of the main home's size. No parking required. New detached ADUs start around $350,000.

New Image Construction Management

8305 Dallas Avenue South, Seattle, WA 98108 46.4 miles

New Image Construction Management is a Washington State general contractor and building company based in Seattle, WA. With a primary focus of new home construction and renovation of residential and commercial properties.

Modern ADU Plans

3660 Lavender Ln NE, Bainbridge Island, WA 98110 33.1 miles

Explore pre-designed ADU floor plans from Modern ADU Plans — studio, 1-bed, 2-bed, garage conversions & more. Save time, reduce costs & maximize property value with ready-to-build accessory dwelling unit designs.

Northwest ADU Bellevue

278 106th Avenue Northeast, Bellevue, WA 98004 44.5 miles

Licensed

Northwest ADU builds custom detached ADUs, garage conversions & basement ADUs across Western Washington. Serving King, Pierce & Snohomish Counties with full-service ADU construction, build-ready plans & permit management.

Other cities in Washington

What you need to know

Searching for top Detached ADU ADU Contractors in Port Townsend, 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 Port Townsend 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.

Port Townsend 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 Port Townsend, Washington, and get started today.

Detached ADU near Port Townsend, WA