Square One Development Group builds and renovates architect-led homes for clients in Arlington and across Northern Virginia — modern, award-winning work executed with precision and discretion.
Modern homes on tighter urban lots.
Arlington rewards a different kind of custom home — modern residences on tighter, often infill lots, where every foot of the site is used with intent and the relationship to neighbors and street matters. It takes a builder fluent in compact-site logistics, careful staging, and the contemporary detailing these homes are known for. That precision on constrained sites is at the center of how we work.
In DC, our Ontario Residence — designed by David Jameson, FAIA — maximizes a four-story home on a fourteen-foot urban lot, a recipient of a Residential Design Architecture Award. Across Virginia, Wildcat Mountain and Liminal House are recipients of International Architecture Awards. The through-line is execution: ambitious design, realized cleanly, whatever the site demands.
Engaging early in preconstruction, we protect the design and the budget and plan the logistics a tight site requires. After move-in, Square One Care keeps the home performing. See the full approach on our custom homes page.