Gov. Thomas Bennett House, Federal mansion in Charleston, United States.

The Gov. Thomas Bennett House is a Federal-style mansion in Charleston with a double-house floor plan that separates four rooms on each level using central corridors. The building displays early 19th-century architecture featuring proportioned spaces and refined interior finishes throughout.

Thomas Bennett Jr. built the house around 1825 on land that had belonged to his father, Thomas Bennett Sr. (1754-1814), an architect and builder. Bennett Jr. had run his father's lumber and milling business and served as speaker of the South Carolina House of Representatives from 1814 to 1818 before becoming governor. He raised the house after his term, on ground overlooking the rice and saw mills he owned. It was listed on the National Register of Historic Places in 1978.

The house's name comes from Thomas Bennett Jr., who had the house built after his term as governor. Its Regency interior details, including the cantilevered stair, are the workmanship to look for; the same stair type appears at the Nathaniel Russell House on Meeting Street.

The property functions today as a venue for weddings and corporate events, managed by a local foundation. Visitors should check ahead about access since the space is often in use for private occasions.

The cantilevered stair has no visible support beneath its treads; the only other one in Charleston is at the Nathaniel Russell House at 51 Meeting Street. The house's plan is a basic double house, four rooms per floor around central corridors.