Completed in 1950 in Rochester, Minnesota, the Thomas Keys Residence was designed by Frank Lloyd Wright as a compact single-family house in his Usonian line for middle-class families seeking a more considered modern architecture. Adapted from an earlier unbuilt Wright design for a Detroit cooperative halted by World War II, it was built into earth berms and constructed of concrete block on a square four-foot module. The original house contained three bedrooms and one bathroom. In 1970, John H. “Jack” Howe, a former Wright apprentice, converted the carport into a guest bedroom and bath. It remains a notable example of Wright’s Usonian approach in Rochester.