One Hill South, at 28 K Street, SE, set a new standard for luxury rental apartment living in Washington, DC, when it opened in 2016. Located in the booming neighborhood of Capitol Riverfront, the building offers 380 studio, one-bedroom, two-bedroom and three-bedroom residences. Amenities include an Equinox fitness center, full-court indoor basketball court, rooftop pool and grilling areas, children’s playroom, and a residents-only co-working and conference space. The property is a joint venture of Ruben Companies and Related Companies.