John Thomson Mason House, 3425 Prospect Street, Northwest, Washington, District of Columbia, DC

Significance: The grey and stately ruin which crowns the highest ridge of Theodore Roosevelt Memorial Island was once the hoe of General John Mason. Built in the last decade of the eighteenth century, this building, along with Thomas Jefferson's Virginia State Capitol, is important in that it is one of the first houses erected for other than ecclesiastical purposes to reflect the temple-structure influence. This architectural style is generally known as the Classical Revival,and it is interesting to note that this building lends further credence to the statement that our country led in the acceptance and development of the classical influence.
Unprocessed Field note material exists for this structure: N659
Survey number: HABS DC-167
Building/structure dates: ca. 1797- ca. 1798 Initial Construction
Building/structure dates: 1942-1944 Subsequent Work
National Register of Historic Places NRIS Number: 67000025