Thomas Gaff House

The Thomas T. Gaff House is the diplomatic residence of the Colombian ambassador to the United States, a post currently held by Juan Carlos Pinzon. The house, a contributing property to the Dupont Circle Historic District, is located at 1520 20th Street NW, Washington, D.C., across from the north entrance to the metro station in Dupont Circle and one block from Massachusetts Avenue’s Embassy Row.nIts architecture was inspired by the Château Balleroy in Normandy, France, and features a hidden ballroom and a mix of 18th- and 19th-century interior designs.