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The Best Accessory Dwelling Unit Builders in Arlington, Virginia

7 Min Read

Arlington, Virginia, a city steeped in history and contemporary allure, effortlessly marries tradition with modernity. This vibrant locale, just across the river from the nation’s capital, boasts a unique blend of cultural richness and urban sophistication. As the heartbeat of the Greater Washington, D.C. metropolitan area, Arlington draws residents seeking historical charm and a dynamic living experience.

If you are considering the addition of an accessory dwelling unit (ADU) to your Arlington property, the list below highlights the premier ADU builders in the area. Our team has meticulously selected these firms based on their track records, expertise, client testimonials, and industry acclaim. These ADU builders are recognized for their meticulous craftsmanship, innovative designs, and unwavering commitment to realizing homeowners’ visions. Whether you envision a stylish backyard studio, a cozy guest cottage, or a fully functional in-law suite, rely on the expertise of the builders on this list to bring your ADU dreams to fruition.

FineCraft Contractors

104 Summit Hall Rd, Gaithersburg, MD 20877

Since 1985, FineCraft Contractors has been dedicated to delivering quality residential construction services. It pays meticulous attention to detail and ensures customer satisfaction, making every project a testament to award-winning quality and service that leaves clients happy and content. Affiliated with the National Association of the Remodeling Industry and the National Kitchen and Bath Association, it has garnered recognition as a five-time 2021 Capital Contractor of the Year winner. It has also been featured in Bethesda Magazine, further reflecting its prowess in residential construction.

Under the guidance of owner George Papaheraklis, a University of Maryland Architecture graduate, FineCraft Contractors thrives on a passion for hands-on construction. With a strong team working seamlessly, the company excels in home additions, new home constructions, renovations, remodels, floors, decks, patios, porches, kitchens, bathrooms, sunrooms, and more. For FineCraft Contractors, each project is not just work—it’s a collaborative journey to transform visions into reality.

Arlington Designer Homes, Inc.

4719 24th Rd. N., Arlington, VA 22207

Arlington Designer Homes, Inc. is a distinguished, small, family-owned custom home builder that has a rich 30-year legacy in constructing homes that mirror the spirit of Arlington. Firmly rooted in this community, it has crafted over 90 residences in Northern Virginia, including those cherished by its own families. Beyond new constructions, the company excels in remodels and home renovation endeavors. The firm is also dedicated to utilizing green and energy-saving initiatives, so it meticulously designs, tests, and monitors homes for optimal comfort and efficiency, all while fostering meaningful customer relationships. 

The firm is led by its president, Andrew Moore, a seasoned industry professional and Certified Green Professional. Moore’s leadership extends beyond construction, contributing to the community through service on the Board of the Columbia Pike Revitalization Organization in Arlington County and having graduated from James Madison University. Under his leadership the firm is affiliated with the National Association of Home Builders and the Northern Virginia Building Industry Association (NVBIA), reflecting its dedication to excellence. The company has also received several prestigious awards, including the 2018 to 2020 NVBIA Gala Award for Best Green Builder. It has also been highlighted in Arlington Magazine and CivilArcho.

Sun Design Remodeling

6862 Elm St, Ste 330, McLean, VA 22101

Sun Design Remodeling, a company rooted in appreciating the natural allure of sunlight, has devoted over three decades to transforming homes. Since its inception, the firm has seamlessly blended extensive experience into each home renovation, crafting distinctive solutions tailored to each client’s vision. Whether creating a cozy space for a leisurely Sunday read or a grand area for entertaining, Sun Design remains unwavering in its commitment to bringing dreams to life.

The company is affiliated with the National Association of the Remodeling Industry and the National Kitchen and Bath Association. Its commitment to excellence is underscored by the recent accolade of the 2023 Chrysalis Award, recognizing a decade of outstanding achievement. Also highlighted in Fairfax Times and Vienna Connection, the firm is led by Founder and Chairman Craig Durosko, who, since 1988, has cultivated a culture centered on exceptional experiences for clients and the entire team. President Bob Gallagher, with a tenure dating back to 1993, oversees all operational aspects of the firm, leading its evolution into a thriving architectural design-build firm with a team of over 50 dedicated professionals.

Case Architects & Remodelers

101 West Broad St., Suite 110, Falls Church, VA 22046

Since 1961, Case Architects & Remodelers has inspired homeowners in the Washington, DC metro area. The in-house team of project developers, designers, project managers, and skilled craftsmen collaborates to create a project that reflects the unique character of each client. This process begins with a CaseStudy®, which is the firm’s proprietary step to equip the client with all the information needed to make informed decisions about their home. As a design-build firm, Case handles design ideas, material selections, and project construction. 

The principal, Bruce Case, serves as president and CEO, bringing over 30 years of industry experience. He holds the title of a Certified Lead Carpenter, is a member of The Economic Club of Washington, D.C., has an MBA from George Mason University, and graduated from Vanderbilt University with a degree in economics and psychology. Under his leadership, the firm’s affiliations include the National Association of the Remodeling Industry and the National Kitchen and Bath Association. The firm has also received several prestigious industry awards, such as being included in the 2023 Qualified Remodeler’s list of Top 500 Remodelers. It was also featured in American Farmhouse Style Magazine and Mansion Global.

Four Brothers Design + Build

4009 Georgia Ave NW, Washington, DC 20011

Four Brothers Design + Build is a comprehensive home remodeling firm catering to clients in Washington, DC, Maryland and Virginia. Its services span full home renovation, additions, and intricate kitchen and bathroom designs. It utilizes a distinct design-build process, which amalgamates architecture, design, and construction services and consolidates them in-house under a single umbrella.

Key figures shaping the firm include: Alfred Johnson, who bridges the gap between design and production; Ben Johnson, who leads sales and estimating efforts; Kent Johnson, who leverages architectural expertise in production management; and Leroy Johnson, who spearheads large-scale projects like full home remodels, basement dig-outs, and additions. Among them and their team members, the firm has several American Institute of Architects affiliates and LEED-accredited professionals. Its presence in esteemed publications such as Architecture DC and Bethesda Magazine further attests to its recognition within the industry.

Commonwealth Home Design

208-A Dominion Rd, NE, Vienna, VA 22180

With a rich legacy spanning over 30 years, Commonwealth Home Design has brought together the skills of a registered architect and the precision of an engineer in order to establish an award-winning history of transforming homes in Northern Virginia. The residential design-build firm employs an in-house team that seamlessly integrates design and construction, ensuring a proven delivery process that minimizes schedule delays and budget overruns. This collaborative approach, driven by the client’s vision, unites architects, specialized designers, artisans, and support staff in order to efficiently craft extraordinary designs.

Recognizing that home transformation is both a challenging and rewarding investment, Commonwealth is committed to turning the ordinary into the exquisite. Affiliated with prestigious industry organizations and acclaimed for its achievements, the firm’s dedication is reflected in Principal Architect Susan Pierce and President Kelvin Pierce. Susan is a LEED-certified professional, reflecting her dedication to sustainable building, and Kelvin Pierce has an engineering background that enhances project supervision and success.


  • Brooke Adams

    Brooke is a Deputy Editor at DC Architects with around five years of professional experience as a writer and editor in the construction and home improvement space. Her expertise covers a wide range of topics including addition construction, home remodeling, and landscape design. Brooke has a Bachelor's degree in Civil Engineering, and she also brings extensive experience as a project manager for a top construction firm, overseeing multi-million dollar projects. Additionally, she is certified in LEED and OSHA safety standards.  Expertise: Addition Construction, Home Remodeling, Landscape Design  Key Highlights: Over 5 years of experience writing and editing in the construction space, Deputy Editor at DC Architects Education: Syracuse University, Bachelor of Science in Civil Engineering; Certificates in Public Relations and Social Media