The William S. Townsend House is located at 96 Delsea Drive (New Jersey Route 47) in the Dennisville section of Dennis Township in Cape May County, New Jersey, United States.

[3] It was added to the National Register of Historic Places on April 5, 1984, for its significance in architecture and politics/government.

[1][4] The house was later listed as a contributing property of the Dennisville Historic District on June 21, 2016.

[5] William S. Townsend was a wealthy farmer and merchant in the area.

The oldest section of the house was built around 1820 by a member of the Ludlam family.