WISA Solutions

8560 Cinder Bed Road, Lorton, VA 22079 10.5 miles

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.

Doug Pruett Construction Company, Inc.

1932 Lincoln Drive, Annapolis, MD 21401 42.6 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 and efficient project delivery.

Makara ADU

15800 Gaither Drive, Gaithersburg, MD 20877 18.3 miles

Makara Builders is Washington DC's leading ADU contractor, specializing in detached ADUs, garage conversions, and granny flats across DC, Maryland, and Virginia. Build in 120 days from permit approval and start earning rental income fast.

Oztan Studio

909 Rose Avenue, North Bethesda, MD 20852 16.9 miles

Oztan Studio offers ADU design services in Arlington, VA. ADUs boost property value, enable rental income & multigenerational living. Arlington requires specific zoning, size & parking rules. Costs range from $100K–$300K+.

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.

Finecraft Contractors

104 Summit Hall Road, Gaithersburg, MD 20877 20 miles

38 years in business In-House Architect Turnkey Solutions

Finecraft Contractors is a Washington D.C.-based general contracting company with 35+ years in residential renovation. Services include kitchen remodels, bathroom upgrades, room additions, and full home gut renovations, backed by transparent project management.

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.

Back Creek Builders

1767 Baltimore Annapolis Blvd, Bowie, MD 32 miles

Back Creek Builders constructs ADUs and in-law suites in Maryland, handling design, permitting, and build. Project types include garage conversions, detached cottages, and basement suites. Founded by Eric Young and Jason Gelblum, they manage zoning compliance and full construction.

JBL Construct LLC

3060 Williams Drive, Suite 300, #78, Fairfax, VA 22031 3.7 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 ft.

Glickman Design Build

15757 Crabbs Branch Way, Rockville, MD 20855 17.4 miles

Eco-Friendly

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 income optimization.

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.

Basement Remodeling

1724 20th Street Northwest, Washington, DC 20009 14.3 miles

DC basement ADU conversions require owner-occupancy, zoning approval, and code compliance. Costs range $100K–$250K+. Basement Remodeling handles permits, design, and construction in 2–4 months.

UP Craftsmen

9108 Kingsbury Drive, Silver Spring, MD 20910 17.6 miles

Licensed

UP Craftsmen is a licensed ADU builder in Montgomery County, MD, specializing in accessory dwelling units, home additions, and remodeling. They offer Home, Professional, and Studio Series ADUs, plus full construction services. MHIC License #0151386.

BBCDC Construction & General Contractors

3418 13th St NW, Washington, DC 20010 15.5 miles

BBCDC Construction & General Contractors specializes in ADU development in Washington, DC, managing zoning compliance, permits, and construction for detached, semi-detached, and attached accessory dwelling units across all residential zones.

Other cities in Virginia

What you need to know

ADU Contractors in Fairfax, Virginia: Navigating a High-Demand Housing Market

Fairfax, Virginia is one of the most affluent and densely populated jurisdictions in the greater Washington, D.C. metropolitan area. With a median household income well above the national average and a consistently competitive real estate market, homeowners in Fairfax are increasingly turning to Accessory Dwelling Units (ADUs) as a smart solution for generating rental income, housing aging family members, or simply maximizing property value. Finding experienced ADU contractors in Fairfax, VA who understand the local regulatory landscape is essential to a successful project.

Fairfax County Zoning and ADU Regulations

ADU construction in Fairfax is governed by Fairfax County's Zoning Ordinance, which was significantly updated in 2021. Under the revised ordinance, ADUs — referred to locally as Accessory Living Units (ALUs) — are permitted in most single-family residential zones. However, there are important rules that qualified ADU contractors must navigate carefully:

What to Look for in a Fairfax ADU Contractor

Hiring the right ADU contractor in Fairfax, Virginia means working with a professional who is licensed in Virginia, familiar with Fairfax County's permitting process, and experienced in both attached and detached ADU construction. The best contractors will handle everything from initial design and permit applications to final inspections. Given the complexity of Fairfax's zoning rules, local experience is a significant advantage.

The Value of Building an ADU in Fairfax, VA

Given Fairfax's proximity to major employment hubs like Tysons Corner, the Pentagon, and Amazon's HQ2 in nearby Arlington, rental demand remains exceptionally strong. A well-built ADU can generate significant monthly rental income while also increasing overall property value. Working with a skilled ADU contractor in Fairfax, Virginia ensures your investment is built to code, completed efficiently, and positioned to deliver long-term financial returns in one of Northern Virginia's most desirable communities.

ADU Contractors near Fairfax, VA