ADU Contractors in Virginia
Dallan Construction Inc
4900 Fitzhugh Avenue, Richmond, VA 23230
Dallan Construction Inc offers ADU house plans ranging from 651–866 sq ft, including Cedar Creek, Cobalt Creek, Fairview Cottage, and Grady models. Options include 1–2 bedrooms, cathedral ceilings, covered patios, and in-unit laundry—ideal for rentals or multigenerational living.
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WISA Solutions
8560 Cinder Bed Road, Lorton, VA 22079
Full Scale Studio
1613 West Main Street, Richmond, VA 23220
Full Scale Studio is a Richmond, VA architecture firm founded in 2018 by Ben Clair. Specializing in custom homes, ADUs, renovations, additions, and small commercial projects, they also offer aging-in-place, high-performance, and real estate investor design services.
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Squarepoint Builders
4530 New Kent Avenue, Richmond, VA 23225
Commonwealth Contractors
222 Court Square, Charlottesville, VA 22902
Virginia ADU construction by Commonwealth Contractors. Expert guidance on zoning, permits & building codes. Options include detached ADUs, garage conversions & basement units. Costs range $150–$300/sq ft. Boost property value & rental income.
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T&H Home Improvements
1390 Southside Dr suite 301, Salem, VA 24153
T&H Home Improvements offers ADU remodeling in Southwest Virginia with 15+ years experience. Services include flooring, electrical, plumbing, drywall & more. Fully insured, local ADU contractor for granny flats & in-law suites.
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Halsey Homes
King George, VA
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.
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Charlottesville ADU Builder
1130 East High Street, Charlottesville, VA 22902
Charlottesville ADU Builder specializes in custom accessory dwelling units, including guest houses, granny flats, and backyard offices. They guide homeowners through design, permits, and construction while providing detailed cost estimates.
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Lynn Modular Homes
10412 Chamberlayne Road, Mechanicsville, VA 23116
An accessory dwelling unit (ADU) is a secondary living space on a single-family lot. Lynn Modular Homes is an experienced ADU builder offering detached ADUs, garage conversions, in-law suites, and JADUs.
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Premier Structures
3040 Peppers Ferry Road, Wytheville, VA 24382
Virginia ADUs—backyard cottages, garage conversions, basement apartments—add living space or rental income. Premier Structures builds compliant ADUs statewide, navigating local zoning, permits, and size rules (250–1,200 sq ft).
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AHG Construction & Remodeling
9600 Atlee Station Road, Mechanicsville, VA 23116
AHG Construction & Remodeling offers home additions and structural remodeling across Greater Richmond, VA. Services include permitting, blueprints, engineering, and full construction management, typically spanning 6–8 months total.
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Gold Rhino
7918 Jones Branch Drive, McLean, VA 22102
Gold Rhino Modular Homes & Buildings offers innovative solutions, customizable designs, ready-to-ship units, and pre-configured packages for containerized modular homes, multi-unit modular structures, modular container offices, and commercial/industrial modular applications.
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Home Improvement Team of Richmond
12564 Patterson Avenue, Richmond, VA 23238
Richmond's Class-A General Contractor offering kitchen & bathroom remodels, home additions, ADUs, basement finishing, decks, roofing, siding & windows. Serving Richmond, Chesterfield, Midlothian & Henrico.
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Longevity Home Solutions
4932 Dominion Boulevard, Glen Allen, VA 23060
Longevity Home Solutions specializes in custom home building, aging-in-place design, ADUs, in-law suites, and multigenerational living. Services include remodeling, accessibility upgrades, garage conversions, and financing assistance for adaptable, comfortable homes.
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RIC Design Build
21 South Sheppard Street, Richmond, VA 23221
RIC Design Build is a Richmond, VA design-build firm specializing in ADU construction. They create functional accessory dwelling units, including detached garage ADUs, tailored to complement existing homes while meeting Richmond's zoning requirements.
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Other cities in Virginia
What you need to know
ADU Contractors in Virginia: Navigating the Commonwealth's Unique Landscape
Virginia stands out as one of the most progressive states on the East Coast when it comes to accessory dwelling units (ADUs). In 2020, the Virginia General Assembly passed legislation encouraging localities to allow ADUs by-right in single-family residential zones, making it easier for homeowners to add secondary living spaces to their properties. This landmark move has significantly increased demand for qualified ADU contractors in Virginia, as more homeowners look to take advantage of the state's evolving housing policies. Whether you're in Northern Virginia, Richmond, or the Hampton Roads area, understanding the local regulatory environment is essential before breaking ground.
What ADU Contractors in Virginia Must Know About Local Regulations
While Virginia's state legislation provides a broad framework, individual localities still maintain significant control over ADU permitting and zoning. ADU contractors in Virginia must be well-versed in the specific rules of each jurisdiction they operate in. For example, Fairfax County, Arlington County, and the City of Alexandria each have their own distinct ADU ordinances, setback requirements, and size limitations. Key regulatory considerations typically include:
- Maximum ADU square footage, often capped at 35% to 50% of the primary dwelling's size
- Owner-occupancy requirements, which vary by locality
- Setback and height restrictions specific to each county or city
- Utility connection and infrastructure requirements
- Separate entrance and parking space mandates
Licensing and Credentials for Virginia ADU Contractors
Hiring a properly licensed contractor is critical for any ADU project in Virginia. The Virginia Department of Professional and Occupational Regulation (DPOR) oversees contractor licensing in the state. ADU contractors must hold a valid Class A, B, or C contractor license depending on the scope and value of the project. Class A licenses are required for projects exceeding $120,000, while Class B covers projects between $10,000 and $120,000. Always verify that your contractor carries the appropriate license, general liability insurance, and workers' compensation coverage before signing any contracts.
Types of ADUs Built by Virginia Contractors
Experienced ADU builders in Virginia are capable of constructing a wide variety of accessory dwelling unit types to suit different property layouts and homeowner needs. The most common types include:
- Detached ADUs — standalone structures built in the backyard
- Attached ADUs — additions connected to the primary home
- Garage conversions — transforming existing garages into livable spaces
- Basement conversions — finishing or converting existing basement areas
- Interior ADUs — carving out a self-contained unit within the existing home
Choosing the Right ADU Contractor in Virginia
Selecting the right ADU contractor in Virginia can make or break your project. Look for contractors with demonstrated experience navigating Virginia's local permitting processes, a strong portfolio of completed ADU projects, and transparent pricing. A reputable contractor will handle everything from architectural design and permit applications to construction and final inspections, ensuring your ADU is built to code and adds lasting value to your property.