Walter Rudin House, Single-family residence in Madison, United States.

The Walter Rudin House is a single-family home in Madison, Wisconsin, designed by Frank Lloyd Wright and built at the end of the 1950s. The house has a flat cantilevered roof, horizontal board siding, and large windows that run along the walls, giving the building a low and grounded appearance.

Frank Lloyd Wright designed the house in 1957 as part of the Marshall Erdman prefabricated housing series, intended to bring good design to middle-class families at a lower cost. Construction was completed in June 1959, just weeks after Wright died in April of that year.

The house takes its name from Walter Rudin, a mathematician who lived there and taught at the University of Wisconsin in Madison. Seeing a house designed for an academic family gives a sense of how Wright's ideas about everyday living reached people outside the art world.

The house is in a residential area of Madison and can be seen from the street, though it remains a private home and is not open to visitors. Clear daylight gives the best view of the horizontal lines of the facade and the roof overhang.

Although the house was part of a prefabricated series, each example in the series was adapted to its specific lot, so no two buildings are exactly alike. The Walter Rudin House is one of only 2 completed examples of Wright's second prefab series.