Four Brothers Design + Build

4009 Georgia Avenue Northwest, Washington, DC 20011 16.5 miles

Four Brothers Design + Build specializes in Accessory Dwelling Units (ADUs) across DC, Northern Virginia & Maryland. Services include basement apartments, garage conversions, in-law suites & detached ADUs.

WISA Solutions

8560 Cinder Bed Road, Lorton, VA 22079 10.5 miles

Spear Builders of Virginia

6901 Meeting Street, Spotsylvania Courthouse, VA 22553 46.8 miles

Luxury Builds

Spear Builders of Virginia completed a custom garage with in-law suite (ADU) in Charlottesville, VA. Features include multi-bay garage, dormer windows, cupola, stone veneer, and a private second-floor living space compliant with local zoning.

Capital Dwelling

4812 W Street Northwest, Washington, DC 20007 13.9 miles

Licensed 40 years in business

Capital Dwelling is a Washington DC-based ADU specialist helping homeowners in the DMV region plan, design, and build accessory dwelling units. Services include feasibility assessments, permitting, architectural design, and construction management.

Hammer Contractors

5335 Wisconsin Avenue Northwest, Washington, DC 20015 13.7 miles

Hammer Contractors builds ADUs in Washington DC, including detached units, garage conversions, and basement apartments. They handle zoning compliance, permits, and full construction, helping homeowners add rental income or family living space.

Halsey Homes

King George, VA 40.3 miles

25 years in business

Halsey Homes builds custom ADUs in Fredericksburg, VA—detached units, in-law suites, granny flats & garage conversions. With 25+ years of experience, voted Best Builder 2025. Expert ADU contractor handling design through completion.

Thomas Custom Builders

9058 Euclid Avenue, Manassas, VA 20110 10.8 miles

Thomas Custom Builders designs & builds ADUs in Virginia, including detached units & in-law suites. Ideal for multigenerational living, rental income, or added property value. Experienced ADU contractor handling full construction, code compliance & planning.

Other cities in Virginia

What you need to know

Searching for top Detached ADU ADU Contractors in Fairfax, Virginia? 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 Fairfax 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.

Fairfax 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 Fairfax, Virginia, and get started today.

Detached ADU near Fairfax, VA