Alta Group Seattle

500 Southeast Everett Mall Way, Everett, WA 98208 11.7 miles

Verum Construction Inc

17461 147th Street Southeast, Monroe, WA 98272 0.5 miles

An ADU (accessory dwelling unit) is a secondary dwelling on a single-family lot. Types include basement apartments, garage conversions & detached cottages. Costs vary by size, design, permits & materials. Professional ADU contractors ensure smooth project execution.

J Hanby LLC

Edmonds, WA 98020 18.3 miles

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.

Red's Construction & Renovation

Federal Way, WA 98003 40.6 miles

Licensed

Red's Construction & Renovation serves Federal Way & South King County, WA, specializing in ADU construction including detached, attached, garage conversions & basement units. Costs range from $50K–$300K+. Licensed, insured, transparent pricing.

Chapman Projects

4225 335th Place Southeast, Fall City, WA 98024 20.6 miles

20 years in business Eco-Friendly

Chapman Projects offers ADU design and construction in Seattle, Bellevue, and King County. With 20+ years of experience, they provide custom accessory dwelling units, detached ADUs, and backyard cottages using sustainable building practices.

Renovate Builders

4555 39th Avenue Southwest, Seattle, WA 98116 27.6 miles

Interbay Construction

1020 108th Avenue Northeast, Bellevue, WA 98004 19.3 miles

Interbay Construction is a Washington State ADU contractor building guest houses, in-law suites, detached ADUs & backyard cottages. Quality materials, clear communication & reliable timelines for every accessory dwelling unit project.

Above & Beyond Construction

13346 Eastbrook Drive Southwest, Port Orchard, WA 98367 41.4 miles

ADUs offer self-contained living with kitchen, bath & bedroom for rental or family use. Room additions expand existing home space. Above & Beyond Construction serves Seattle & Puget Sound homeowners with both project types.

Lakeside ADU & Home Planning

1901 Vernon Road, Lake Stevens, WA 98258 11.3 miles

Lakeside ADU & Home Planning, based in Lake Stevens, WA, is a full-service ADU builder serving the Puget Sound Region. They specialize in backyard cottages, mother-in-law suites, garage conversions, and new builds, managing design, permitting, and construction.

Gravity Builders LLC

17422 108th Avenue Southeast, Renton, WA 98055 30.2 miles

Licensed

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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What you need to know

Searching for top Detached ADU ADU Contractors in Monroe, 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 Monroe 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.

Monroe 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 Monroe, Washington, and get started today.

Detached ADU near Monroe, WA