The American Foursquare is another twentieth century house form that arose from the Arts and Crafts movement, and also took many of its design cues from the Progressive era. The form of a Foursquare is that of a two-story cube, usually with a hipped or pyramidal roof. The name derives from the arrangement of most examples of having four principal rooms on each floor.

Like the Bungalow, a front porch is almost always present. Foursquares were built in a variety of materials, including frame and brick and stone veneer, usually on a continuous foundation. Many Foursquare houses feature elements of the Craftsman style, such as exposed rafter tails, overhanging eaves, dormers on the attic story and Craftsman-style double-hung windows.