Oak Hill is an historic home of the Marshall family in Delaplane, Virginia. It lies north of I-66, just east of the US-17/Delaplane exit from westbound I-66. It consists of two separate houses connected by a passageway. The earlier and smaller house, a Colonial farmhouse measuring 32 ft × 30 ft (9.8 m × 9.1 m), was built in 1773 by Colonel Thomas Marshall, father of John Marshall, Chief Justice of the United States. John Marshall lived in the Oak Hill house until his marriage in 1783.