Our Home Addition Offerings

Need more space but love where you live? We design additions that complement the existing home so the final result looks like it organically grew over time and remains contextual to the neighborhood. Whether you are going up an additional level or extending your footprint outward, Blue Star guides you through the complexities of DC zoning and permitting with the architectural vision and structural expertise your investment deserves.

Rooftop terrace above a garage conversion accessory dwelling unit in Eastern Market, Washington DC.

Additional Floor

When your footprint cannot grow outward, we build upward. We specialize in adding full levels to existing homes, meticulously matching historic facades and reinforcing structure to support expanded, architecturally cohesive living areas based on our Lifestyle Driven Design Process. Learn more ›

Rear & Side Additions

Extend your home’s footprint to create the chef’s kitchen, sun-filled family room, or primary suite you have envisioned. We design rear and side additions that feel like a natural part of the original architecture, not something added on. Learn more ›

Garage Conversions

Repurpose underutilized structures into refined, high-performance living spaces. We transform garages into home offices, fitness studios, or private suites, reconfiguring the existing space and providing the electrical, plumbing, and HVAC systems needed to turn non-habitable space into habitable space. Learn more ›

Your Home Has More Room Than You Think

You don’t have to choose between more space and the neighborhood you love. An addition, whether it’s a new floor, a rear extension, a dug-out basement, or a converted garage, lets you get the room you need without leaving what you already have. The right addition doesn’t look tacked on. It looks like it was always part of the house.

Blue Star combines award-winning design, structural expertise, and deep experience with DC’s zoning and permitting process, so you get a home that’s genuinely bigger, not just more crowded. If you’re ready to talk through what’s possible for your specific lot and home, we’d love to start that conversation.

Schedule Your Consultation ›

Happy Clients