Belvoir (plantation)

Belvoir Mansion Ruins and the Fairfax Grave
Location of Fort Belvoir
LocationSE of intersection of 23rd St. and Belvoir Rd., parking lot on eastern side of Forney Loop Fort Belvoir, Virginia, U.S.
Coordinates38°40′45.12″N 77°7′45.48″W / 38.6792000°N 77.1293000°W / 38.6792000; -77.1293000
Built1736
NRHP reference No.73002337
VLR No.029-0041
Significant dates
Added to NRHPJune 04, 1973
Designated VLRDecember 2, 1969, July 17, 1973

Belvoir was the plantation and estate of colonial Virginia's prominent William Fairfax family. Operated with the forced labor of enslaved people, it was located on the west bank of the Potomac River on the present site of Fort Belvoir in Fairfax County, Virginia.

The main house, called Belvoir Manor or Belvoir Mansion, burned in 1783 and was destroyed during the War of 1812. The site has been listed on the National Register of Historic Places since 1973 as "Belvoir Mansion Ruins and the Fairfax Grave."