ADU Contractors near Gaithersburg, MD
Carbide Construction
7901 Kincannon Place, Lorton, VA 22079
27.3 miles
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.
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Oztan Studio
909 Rose Avenue, North Bethesda, MD 20852
7.7 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+.
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Silva Construction for Home Remodeling
2723 North Wyoming Street, Arlington, VA 22213
17 miles
Hammer Contractors
5335 Wisconsin Avenue Northwest, Washington, DC 20015
13.8 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.
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Gold Rhino
7918 Jones Branch Drive, McLean, VA 22102
14 miles
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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FineCraft Contractors, Inc.
104 Summit Hall Road, Gaithersburg, MD 20877
0.7 miles
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.
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Four Brothers Design + Build
4009 Georgia Avenue Northwest, Washington, DC 20011
15.5 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.
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Doug Pruett Construction Company, Inc.
1932 Lincoln Drive, Annapolis, MD 21401
38.6 miles
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.
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Ben Norkin Architecture
7204 Trescott Avenue, Takoma Park, MD 20912
16.3 miles
Ben Norkin Architecture outlines ADU permit drawing requirements in Montgomery County, MD, covering site plans, zoning, drainage, floor plans, structural drawings, and energy compliance for detached ADUs, garage conversions, and backyard cottages.
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JBL Construct LLC
3060 Williams Drive, Suite 300, #78, Fairfax, VA 22031
18.6 miles
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.
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WISA Solutions
8560 Cinder Bed Road, Lorton, VA 22079
28.2 miles
BBCDC Construction & General Contractors
3418 13th St NW, Washington, DC 20010
17.1 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.
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Capital Dwelling
4812 W Street Northwest, Washington, DC 20007
18.5 miles
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.
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Thomas Custom Builders
9058 Euclid Avenue, Manassas, VA 20110
29.2 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.
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Excell Homes
16021 Industrial Drive, Gaithersburg, MD 20877
1.5 miles
Excell Homes is a Northern Virginia ADU builder with 20+ years experience. They offer turnkey accessory dwelling units in Fairfax, Arlington & Alexandria, covering design, permitting & construction under one fixed-price contract.
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Other cities in Maryland
What you need to know
ADU Contractors in Gaithersburg, MD: Navigating a Smart Growth City
Gaithersburg, Maryland is one of the state's most progressive municipalities when it comes to planned development and smart growth initiatives. As part of Montgomery County, Gaithersburg operates under a dual regulatory framework — meaning ADU contractors in Gaithersburg must comply with both the City of Gaithersburg's own zoning ordinances and Montgomery County's broader building codes. This unique structure makes hiring an experienced, locally knowledgeable ADU contractor absolutely essential for homeowners looking to add an accessory dwelling unit to their property.
Understanding ADU Regulations in Gaithersburg, Maryland
Gaithersburg is an incorporated city, which means it maintains its own zoning authority separate from Montgomery County. Homeowners and ADU builders in Gaithersburg must work with the City's Department of Planning and Code Administration to obtain the necessary permits. Key regulatory considerations include:
- Zoning compliance: ADUs are generally permitted in single-family residential zones, but lot size, setback requirements, and maximum unit size must all be verified before construction begins.
- Owner-occupancy rules: Certain ADU types may require the property owner to occupy either the primary residence or the accessory unit.
- Height and size restrictions: Detached ADUs are typically subject to strict height limits and square footage caps relative to the primary dwelling.
- Utility connections: Separate utility metering may require coordination with Washington Gas and Pepco, the primary utility providers in the area.
Types of ADUs Built by Gaithersburg Contractors
Skilled ADU contractors serving Gaithersburg, MD are experienced in building a variety of accessory dwelling unit types to suit different property layouts and homeowner goals. Common ADU types in the area include:
- Detached ADUs: Standalone backyard cottages or garage conversions, popular in neighborhoods like Lakelands and Crown Farm.
- Attached ADUs: Units added to the side or rear of the existing home structure.
- Interior/Basement ADUs: Converted lower levels or interior spaces, ideal for older Gaithersburg homes with large basements.
- Above-garage ADUs: Units constructed above existing detached garages, maximizing use of available space.
Why Hire a Local ADU Contractor in Gaithersburg?
Working with a local ADU contractor in Gaithersburg means partnering with a professional who understands the city's specific permit timelines, inspection processes, and zoning nuances. Gaithersburg's growing population and proximity to major employment hubs like the I-270 Technology Corridor make ADUs an increasingly attractive investment for homeowners seeking rental income or multigenerational living solutions.
A qualified Gaithersburg ADU contractor will handle everything from initial design and permit applications to final inspections, ensuring your project meets all local and state requirements. With housing demand continuing to rise in Montgomery County, now is an ideal time to explore adding an ADU to your Gaithersburg property.