The New Century Clubhouse, also known as Square House, is an historic, American clubhouse for a local women's club that is located in West Chester, Chester County, Pennsylvania.

[1] Built in 1914, this historic structure is a two-story, T-shaped, stuccoed building with flanking one-story wings.

Designed in the Colonial Revival style, it sits on a raised basement and has a hipped roof.

The front entrance features a porch with Doric order columns.

The five-bay, rear wing houses an auditorium with stage and dressing rooms.