More On Home Additions
What We Build
Designed for More Than Storage
Many Washington DC homeowners with a detached garage stopped using it for a car a long time ago. It became storage. Then better-organized storage, while the rest of the house kept feeling smaller.
Blue Star transforms garages into livable, code-compliant spaces, whether a guest suite, home office, or an accessory dwelling unit that generates rental income. Our extensive knowledge of DC zoning, building codes, and experience working with older and historic structures ensures we can guide you through the process and make it far less of a burden on you.
Most older garages were not built for people to live in. No insulation. No moisture barrier. Slab or brick flooring that was never meant to support finished floors. A detached garage in DC is one of the more underused assets a homeowner can sit on. Converted well, it becomes something with real utility. Getting electric, plumbing, and drainage into a space that never had them adds real complexity to the design, and that has to be solved before construction starts, not during it. The result is a space that’s comfortable, dry, and built for everyday use, not just technically habitable.
How It Works
More Goes Into This Than It Looks
Garage conversions can be simple or complex, depending on the end use, but they almost always involve more trades and more moving parts than homeowners expect. Structural, mechanical, electrical, plumbing, and design all have to work together from the start. We listen to what you actually want the space to do, then coordinate every trade around that from day one. What you get in the end is a plan that’s genuinely buildable, and a clear understanding of it every step of the way.
Blue Star handles the architectural design and construction under one roof. The structural assessment informs the design before drawings are finalized. We know where these projects stall and how to keep that from happening on yours.
We think through all of it before design starts:
- Structural assessment of slab, framing, and roof condition
- Insulation, moisture barriers, and weatherproofing
- Plumbing and electrical for a functional living space
- Egress windows and door placement for code compliance
- Staircases that meet code but have a minimal footprint
- Utility connections and separation for ADU use
- Zoning verification and permit coordination
The goal is a finished space that does not announce itself as a converted garage. It should just feel like a well-designed space.
Why Blue Star
The Right Team Makes All the Difference
A garage conversion touches more systems than most homeowners expect. Structure, insulation, plumbing, electrical, zoning, and in many cases historic preservation review all have to be coordinated before a single wall goes up. It takes a team that understands the full scope from the start.
Blue Star is an Architect-Led Design Build firm, and on a garage conversion that distinction is everything. When the architect and builder are the same team, the structural assessment shapes the design before drawings are finalized and nothing gets missed between disciplines. Our process is built around three things: Lifestyle Driven Design, Craftsmanship with Architectural Details, and a Transparent Process.
Lifestyle Driven Design
Whether you are building a rental unit, a guest suite, or a private home office, the design starts with how you actually intend to use the space. We ask the right questions before anything gets drawn so the finished space works the way you need it to.
Craftsmanship & Quality Details
The goal is a finished space that does not announce itself as a converted garage. That takes deliberate decisions about insulation, materiality, ceiling height, and every detail that determines whether the space feels purpose-built or pieced together.
A Transparent Process
Garage conversions in DC involve zoning verification, building permits, and in historic districts exterior review. We manage all of it and keep you informed at every step. You will know what your project requires, what the timeline looks like, and what drives the budget before any work begins.
Let’s Figure Out What’s Possible
If your garage is storing things that could live anywhere else while the rest of your home runs short on room, it is worth a conversation about what that space could actually become.
We ask questions, look at what you have, and tell you honestly what the project would involve and cost. Some garages are strong candidates for a full ADU. Others make more sense as a simpler conversion. You will leave knowing which one yours is.
Recognized by the Industry, Trusted by Our Clients
Thank you to our wonderful clients, exceptional employees, trusted partners, and everyone who helps us produce work we’re proud of. We’re honored to be recognized again as a multiple PRO MidAtlantic award winner in 2026, our 8th year in a row.
- Dream
- Design
- Build
- Enjoy
Washington DC has a plethora of housing stock and types. From Federal to Victorian, Empire to Richardson Romanesque, the architecture that lines the main streets and thoroughfares tells one story. Turn a corner and head down an alley and you find another.
Welcome to the backside of the house, where garages, carriage houses, and outbuildings have quietly existed for over a century. A garage is typically a smaller, single-story structure that once housed a buggy or, in later years, a car. A carriage house tends to be a larger structure built to house a horse and carriage, sometimes shared among neighbors, and often with living quarters above. Think of it as DC’s original tiny house or work-live space.
Happy Clients
Blue Star’s best trait is their attitude. Everyone is unfailing polite, even when things got hard. And when things went wrong, which I fully anticipated would happen, you guys did the right thing every single time.
When you buy from Eric and his team, you can rest assured that they will address problems your inspectors couldn’t see.
The craftsmen used were excellent. We were impressed with their work and attitude and ability to creatively work around issues. The addition seamlessly integrates into the rest of the house and it’s hard to believe that the new spaces haven’t always existed as part of the original home.
Blue Star loved the architectural and design challenges I handed them, and each time I came up with a new idea, they were driven to figure out the best way to deliver.
I was very pleased with my experience with Blue Star. The reason for the top 5-star rating is three fold- the quality of the work, the prices they obtained for materials and the design elements. I did a large renovation (kitchen, 3 bathrooms, HVAC, plus knocked down some walls) which took about 4 months.
Blue Star came in on budget and ahead of a very, very tight and critical schedule. We highly recommend them to anyone considering a renovation.