The Walter Rudin House in Madison, Wisconsin, was designed by Frank Lloyd Wright in 1957, prefabricated by Marshall Erdman, completed in June 1959, and sold to Walter and Mary Ellen Rudin, mathematicians at the University of Wisconsin–Madison. It was the first of two examples of the second Marshall Erdman prefab type, Prefab #2, and shared its floor plan with the James McBean Residence with only minor differences. Part of Wright’s late push toward standardized, factory-assisted housing, the house features a large two-story living room, a full basement unusual in his work, and an exterior of concrete block, board-and-batten siding, clerestory windows, a broad cantilevered roof, and a corner carport.