3224 16th Street NW

Mount Pleasant

A limestone mansion that once embodied Mary Foote Henderson's audacious early-20th century vision to line 16th Street NW with diplomatic palaces is getting a second act — this time as 90 residential condos. Developer Dila Development, working with DC-based architecture firm 2Plys, has proposed a three-phase conversion of a property in Mount Pleasant, with the entire project targeted for completion by 2028. The plan would reshape a prominent corner at 16th and Park Road, transforming a collection of historic structures into one of the biggest condo developments pitched in DC in years. Phase one focuses on the historic mansion at 3224 16th Street NW, which will become 21 condos. The second phase will address 3220 16th Street, with a five-level addition built above the existing two-story school building. In the third phase — running concurrently with the second — the adjacent townhouse at 1604 Park Road NW will receive a multi-story addition above and behind its rear wing. When complete, the project will yield 6