
Wall to Wall Construction, INC
Wall to Wall Construction, INC. Construction company. 1101 30th St NW STE 500, Washington, DC 20007, United States
Looking for the best garage conversion contractors in Washington, District of Columbia? Our directory features 16 vetted garage conversion contractors serving the Washington area. Whether you're planning a new ADU construction, garage conversion, or backyard cottage, find the right builder for your project.

Wall to Wall Construction, INC. Construction company. 1101 30th St NW STE 500, Washington, DC 20007, United States

Capital Dwelling. Home builder. 4812 W St NW, Washington, DC 20007, United States

Specializing in ADU construction and related services in Washington, DC.

ADCconstruction. Construction company. 218 9th St SE, Washington, DC 20003, United States

Specializing in ADU construction and related services in Washington, DC.

Noaman & Son Construction LLC. General contractor. 1629 K St NW #300, Washington, DC 20006, United States

Industry Leading Architects & Building Designers in Washington, DC

Remodel Washington DC. Remodeler. 949 1st St SE, Washington, DC 20003, United States

Four Brothers Design + Build is a full-service design-build firm in Washington, DC, specializing in residential remodeling, including ADUs.

Specializing in ADU construction and related services in Washington, DC.

ATRIUN CONSTRUCTION LLC. General contractor. 5608 Eastern Ave NE, Washington, DC 20011

Specializing in ADU construction and related services in Washington, DC.

Specializing in ADU construction and related services in Washington, DC.

Specializing in ADU construction and related services in Washington, DC.

Specializing in ADU construction and related services in Washington, DC.

Specializing in ADU construction and related services in Washington, DC.
Washington is one of the top markets for accessory dwelling units in District of Columbia. With growing demand for affordable housing, ADU construction in Washington offers homeowners an excellent opportunity to add living space, generate rental income, or house family members. Our curated list of garage conversion contractors in Washington helps you find experienced professionals who understand local building codes, zoning regulations, and permit requirements.
ADU construction costs in Washington typically range from $150,000 to $350,000 depending on size, design, and finishes. Garage conversions are generally less expensive ($80,000–$150,000), while custom-built detached ADUs can cost more. Get free quotes from our listed garage conversion contractors to compare prices.
Yes, ADU construction in Washington requires building permits. District of Columbia has specific ADU regulations, and local zoning laws may have additional requirements. Our listed builders can help you navigate the permitting process.
ADU construction timelines in Washington typically range from 4–12 months, depending on the project type. Prefab ADUs can be installed in 2–4 months, while custom builds may take 8–12 months including design and permitting.