It was added to the National Register of Historic Places on September 28, 1995, for its significance in architecture, commerce, engineering, industry and exploration/settlement.

[3] The oldest buildings in the district are the two mills on opposite sides of the Clinton Dam on the South Branch Raritan River.

The Duckworth Building and the Odd Fellows Hall on Main Street were built using brick after this fire.

The house at 68 West Main Street shows Italianate style and features a spoke-filled circular window in the attic.

The John Taylor Leigh Mansion, now the town municipal building, was built in 1861 with bricks made on the property.