Remotely derived from Spanish Colonial precedents of the southwest and drawing inspiration from the Craftsman and Prairie styles, this building type originated in the 1930s with California architects. It gained popularity in the 1940s during the post war building boom. By the early 1950s, it was replacing Minimal Traditional houses and dominated American domestic construction well into the 1960s.
The low horizontal silhouette and rambling floor plan of the ranch reflected the fascination with the informal lifestyle of the West Coast. Often a garage or carport was attached to one end further