Headquarters House (Boston)

William H. Prescott House
Of the two units depicted here, the Prescott House is the one on the left.
Location55 Beacon Street,
Boston, Massachusetts
Coordinates42°21′23.6″N 71°4′5.7″W / 42.356556°N 71.068250°W / 42.356556; -71.068250
Arealess than one acre
Built1808
ArchitectBenjamin, Asher
Architectural styleFederal
WebsiteWilliam Hickling Prescott House
Part ofBeacon Hill Historic District (ID66000130)
NRHP reference No.66000765
Significant dates
Added to NRHPOctober 15, 1966
Designated NHLDecember 29, 1964
Designated NHLDCPOctober 15, 1966

William Hickling Prescott House, also known as the Headquarters House, is an historic house museum located at 55 Beacon Street on Beacon Hill in Boston, Massachusetts. It is the left-hand portion of a double townhouse at 54–55 Beacon Street, seen in the photograph. The townhouse, built in 1808 to a design by Asher Benjamin, was designated a National Historic Landmark in 1964 for its association with William Hickling Prescott (1796–1859), one of the nation's first historians. The house is now a museum operated by the Massachusetts chapter of the National Society of the Colonial Dames of America, which purchased it for its headquarters in 1944.