Oatlands Historic House & Gardens

Oatlands Historic District
Main House of Oatlands Historic District (1973)
LocationLoudoun County, Virginia
Nearest cityLeesburg, Virginia
Coordinates39°2′27″N 77°37′02″W / 39.04083°N 77.61722°W / 39.04083; -77.61722
Area415 acres (168 ha) (landmarked area)
Builtca. 1804
ArchitectGeorge Carter (original)
Architectural styleFederal, Greek Revival
Websitewww.oatlands.org
NRHP reference No.69000255 (original)
74002327 (expansion to district)
VLR No.053-0093
Significant dates
Added to NRHPNovember 12, 1969 (original)
May 3, 1974 (expansion to district)
Designated NHLNovember 11, 1971
Designated VLRSeptember 9, 1969

Oatlands Historic House and Gardens (formerly Oatlands Plantation) is an estate located in Leesburg, Virginia, United States. Oatlands is operated by the National Trust for Historic Preservation and is listed on the National Register of Historic Places as a National Historic Landmark. The Oatlands property is composed of the main mansion and 415 acres (168.0 ha) of farmland and gardens. The house is judged one of the finest Federal period country estate houses in the nation.

On the property, in addition to the Mansion, are a number of outbuildings, including the Carriage House, Bachelor's Cottage, several barns and farm buildings, and a greenhouse, built in 1810, said to be the oldest standing greenhouse in the South.