Decatur House

Decatur House
North side of Decatur House as restored 2006–2008.
Location748 Jackson Pl., NW.
Washington, D.C.
Coordinates38°54′0.2″N 77°2′17.4″W / 38.900056°N 77.038167°W / 38.900056; -77.038167
Area< 1-acre (0.40 ha)
Built1818
ArchitectBenjamin Henry Latrobe
Architectural styleFederal
Part ofLafayette Square Historic District (ID70000833)
NRHP reference No.66000858
Significant dates
Added to NRHPOctober 15, 1966
Designated NHLDecember 19, 1960
Designated NHLDCPAugust 29, 1970

Decatur House is a historic house museum at 748 Jackson Place in Washington, D.C., the capital of the United States. It is named after its first owner and occupant, the naval officer Stephen Decatur Jr. Built in 1818, the house is located at the northwest corner of Lafayette Square, about a block from the White House.

In 1836, new owners built an outbuilding on the property at the back which was in part used for slave quarters. Until the Emancipation Proclamation went into effect on January 1, 1863, weekly auctions of enslaved black persons were held in the house's backyard, now a wedding venue. The building currently houses a museum, as well as the National Center for White House History, operated by the White House Historical Association.