"Oldest House in DC Located along M Street in the heart of Georgetown's hustle and bustle is the oldest extant home in DC. Built by a Pennsylvania cabinetmaker/carpenter in 1765 using locally sourced rock, timber, and earth, the Old Stone House still retains its rugged stone appearance even after being threatened with demolition in the 1950's. It was the urban legend that President Washington and city designer Pierre L'Enfant met here to plan the layout of DC that saved the building. Today, guests can tour the three-story structure to learn about its history and late 18th century colonial living in the DC area."