This settled a long list of border disputes between the U.S. and the British provinces that are now Canada, and ended the Aroostook War.

Ashburton House stands on the north side of H Street, facing Lafayette Square to the south, just east of St. John's Episcopal Church, to which it is now connected by a narrow hyphen.

The roof has a broad eave supported by decorative brackets, and is pierced by dormers with deeply pedimented gables.

While he lived there, the two men negotiated the Webster-Ashburton Treaty in its parlor, which resolved most of the boundary disputes between the U.S. and the British Canadian provinces as far west as the Great Lakes.

[5] Early in the morning of June 1, 2020, during local protests following the murder of George Floyd by Minneapolis police, a fire was set in the basement of Ashburton House.