Harewood house was built on a tract of land first acquired by George Washington's older half brother, Lawrence Washington (1718-1752), located in what was then Frederick County, later Berkeley County, and what is now Jefferson County, West Virginia. The house itself is located about two miles west of Charles Town. After Lawrence's death Samuel Washington acquired about 230 acres of the property. In September 1770 he moved from his 600 acre farm on Chotank Creek in Stafford County to his house in Harewood. After his death the property passed to his son, George Steptoe Washington, and his wife Lucy Payne Washington (Todd), a sister of Dolley Payne Todd Madison (1768-1849). James Madison married Dolley Payne Todd at Harewood on 16 Sept. 1794. The house, a two-story, stone, Georgian-style mansion, may have been designed and built by John Ariss (d. 1799).
John W. Wayland, The Washingtons and Their Homes (Staunton: McClure Printing Company, 1944), 129-133, 135, 144, 148.
"Samuel Washington House, 'Harewood,'" United States Department of the Interior, National Park Service, National Register of Historic Places Inventory—Nomination Form. July, 1969.
Dolley Payne Todd to Eliza Collins Lee, September 16, 1794, in The Papers of James Madison Digital Edition, ed. J.C.A. Stagg (Charlottesville: University of Virginia Press, Rotunda, 2010), https://rotunda.upress.virginia.edu/founders/JSMN-01-15-02-0269 [accessed 07 Dec 2021]
or
in Founders Online, (National Archives), https://founders.archives.gov/documents/Madison/01-15-02-0269.