Design-build services · Arlington County, Virginia
Home additions in Arlington County, VA
Room additions, upper-level additions and expanded living spaces in Arlington County, with coordinated design, permits and construction.
Make room for the way you live
Mosaic plans room additions, kitchen expansions, primary suites and second-story space around the existing home. Start with the rooms you need, the connection to your current layout and how you want the house to function day to day.
Start with the Arlington County property
Evaluate lot coverage and setbacks together when comparing more interior space with an outdoor living area. Arlington lot-coverage rules apply to additions and new construction and include detached garages and pergolas among counted features. Coverage and setbacks are separate checks.
Coordinate structure, plans and construction
Arlington residential building applications use Permit Arlington. Prepare dimensioned plans and identify applicable prior approvals; a certified, scaled plat helps verify setbacks. We coordinate architectural and structural drawings, applicable system plans, permit submissions and construction for the agreed scope. For an over-garage addition, the existing foundation and framing need their own evaluation.
Prepare for your design consultation
Bring a property plat, photographs, any existing plans and your must-have rooms. Discuss access, utilities, finish preferences and how construction could affect daily routines. Pricing and schedules are developed for the property and scope, not promised from a generic square-foot figure.
Official local planning resources.
Requirements depend on the parcel and project scope and may change. Confirm current requirements with the reviewing authority. These references are not permit determinations.


