"Built on a private street on the Edward Waller estate. The Winslow House was to be Wright's first important independent commission and his first attempt at reinventing the traditional house.
The William H. Winslow House has been described as the precursor to the later Prairie houses. With them, it shares a hipped roof with wide, sheltered eaves, low chimney, and bold water table, with no suggestion of a basement below (although there is one).
In contrast to the formality of the front, the rear facade includes a circular bay and an octagonal stair tower whose windows are decorated with Gothic tracery. Along with the stable, it more clearly points to Wright's Prairie future than does the front facade."
--Cannon, P. F. (2006). Hometown Architect: The complete buildings of Frank Lloyd Wright in Oak Park and River Forest, Illinois. San Francisco: Pomegranate. p.30-33