Pine Slash is primarily significant for the unique construction of its oldest original building, a mid-18th century dwelling. No other examples of colonial vertical plank construction have been identified in Virginia, and very few in the entire southeastern United States. The building's importance as an artifact, and as a primary document in the history of Virginia construction technology is immense. Pine Slash is also significant as Patrick Henry's home in the 1750s. The property includes the 18th-century residence; a second residence and a brick outbuilding, dating from the early 19th century; two structures dating from the mid-20th century, a family cemetery associated with the Jones family, who have dwelled at Pine Slash since the late 18th century. NRHP Registration, 19 November 1987