William Green House is a historic residence located in the unincorporated community of Rochester, Iowa, United States.

There is a "bricked-over doorway in the basement and a cell-like hole under the south portion of the house.

"[2] John Brown stayed in nearby Springdale where his raid on Harper's Ferry was planned, and there were a number of other houses in the area that were also believed to be stops.

The four up-stairs bedrooms, although one has been converted to a bathroom, open onto a balcony in the center of the L. Two staircases led to the second floor.

This article about a property in Cedar County, Iowa on the National Register of Historic Places is a stub.