Glickman Design Build

15757 Crabbs Branch Way, Rockville, MD 20855 19.2 miles

Glickman Design Build offers full-service ADU design and construction, including detached ADUs, granny flats, in-law suites & basement conversions. They handle permits, sustainable building, multigenerational layouts, remodeling, and rental in... read more

JBL Construct LLC

3060 Williams Drive, Suite 300, #78, Fairfax, VA 22031 8.6 miles

Licensed

JBL Construct LLC builds Accessory Dwelling Units (ADUs) in Northern Virginia, handling zoning, permits, design, and construction. Services cover basement conversions, garage conversions, and detached cottages. Costs range from $275–$400+ per sq... read more

Doug Pruett Construction Company, Inc.

1932 Lincoln Drive, Annapolis, MD 21401 32.1 miles

Licensed Eco-Friendly

Doug Pruett Construction Company, Inc. is a full-service ADU contractor specializing in detached ADUs, garage conversions, backyard cottages, and in-law suites. They manage design, permitting, and construction in-house, ensuring code compliance an... read more

FineCraft Contractors, Inc.

104 Summit Hall Road, Gaithersburg, MD 20877 22.5 miles

38 years in business In-House Architect

FineCraft Contractors, Inc. is a general contracting firm with nearly 40 years of experience in home renovations, kitchen remodels, room additions, and more. Known for quality craftsmanship, transparent communication, and on-budget delivery.

Carbide Construction

7901 Kincannon Place, Lorton, VA 22079 7.2 miles

22 years in business Prefab Specialist Eco-Friendly

Carbide Construction offers modular additions, ADUs, in-law suites, and ADA-compliant builds in Northern Virginia. Since 2002, they manage design to installation, working with top manufacturers for custom, eco-friendly prefab home solutions.

Four Brothers Design + Build

4009 Georgia Avenue Northwest, Washington, DC 20011 10.5 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.

Halsey Homes

King George, VA 37.6 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 20.4 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 com... read more

Other cities in Virginia

What you need to know

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

Alexandria 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 Alexandria, Virginia, and get started today.

Detached ADU near Alexandria, VA