The William Collins House is a Prairie style home built about 1911 above Lake Mendota, a half mile north of the capitol in Madison, Wisconsin.

In 1974 it was added to the National Register of Historic Places as a locally significant fine example of Claude and Starck's residential work in the Prairie style.

[1] In the early 1900s as the logging boom in Wisconsin was winding down, William Collins and his brother Cornelius ran a business manufacturing and wholesaling wood products - Collins Bros.[1] In 1908 Cornelius and his wife Anna had the local architectural firm of Louis Claude and Edward Starck design them a home overlooking Lake Mendota, which still stands at 646 E. Gorham, across Blount Street from the house that is the subject of this article.

Cornelius' house is 2.5-stories, with brick walls and a steeply pitched roof typical of Tudor Revival style.

Many of the homes designed by this firm still exist, and this building so well shows their full grasp of the compact-cubical form executed in the Chicago area by George W. Maher....