In 1915, the Dumbarton House was moved 100 feet to its present site, to allow for the extension of Q Street into Georgetown. From Streets of Washington: "It took three weeks and 200 jacks to raise the old house a half-inch off the ground and probably several months after that to drag it into its new resting place, a spot that had been dug out of the hillside some 60 feet to the north. Regretfully, no pictures have been located that show how this complicated engineering feat was accomplished."
Dumbarton House is a fine example of Federal period architecture and offers visitors to Washington, D.C., a unique opportunity to enhance their appreciation of early American history. Closely connected to the first years of the American Republic, the house has stood on the heights of Georgetown for over two centuries