510 N St Sw

Harbour Square is a mid-century cooperative complex completed in 1966 along Washington’s Southwest Waterfront. The development comprises multiple low- to mid-rise buildings arranged around six acres of professionally landscaped grounds, formal water gardens, and connected walking paths. Residences include studios, one- and two-bedroom layouts with a mix of open and traditional floor plans; many units feature expansive walls of glass, private terraces or balconies, built-in storage, and classic parquet or wood flooring. Interiors commonly show updates such as renovated kitchens with islands or gourmet galley arrangements, upgraded countertops, recessed lighting, soaking tubs or tub-shower combinations, and in-unit washers and dryers in many homes. Shared resources are extensive: secure gated entry with a 24-hour gatehouse and staffed front desk, indoor heated 25-meter pool, glass-enclosed fitness center, large party room, multiple rooftop terraces with panoramic views of the Potomac and national monuments, barbecue areas, guest parking, and secure storage. Parking is available in an underground garage with rentable assigned spaces and EV charging stations. The coop structure bundles taxes, many utilities, cable/internet, management, maintenance and reserves into monthly fees and maintains on-site maintenance and capital reserve planning. Situated steps from The Wharf, Waterfront Metro, and the Washington Channel, Harbour Square provides a quieter, garden-focused residential environment while keeping immediate access to dining, entertainment, water taxi service, and central DC destinations.