Located on the eastern end of the house, the Orangery is a rectangular building defined by its high, arched, sash windows. Robert Beverly, a previous owner, built it between 1805 and 1812. In the 1860s, Edward M. Linthicum updated the building by adding a monitor roof and an enclosed walkway to the house. He also planted a Ficus pumila in one corner of the Orangery, which continues to grow to this day, draping over the interior of the entire space.
The Orangery at Dumbarton Oaks











