| Dr. William J. Mayo House | |
| Nrhp Type: | nrhp |
| Location: | 701 4th St., SW, Rochester, Minnesota |
| Coordinates: | 44.0189°N -92.4708°W |
| Built: | 1916 |
| Architect: | Ellerbe & Assoc. |
| Added: | March 26, 1975 |
| Area: | less than one acre |
| Refnum: | 75001001 |
The Dr. William J. Mayo House was built in 1916. The house showcases a unique combination of Renaissance Revival and English Tudor styles. The 24,000 square foot home contains 47 rooms on 6 floors. Also known as the Mayo Foundation House, it was listed on the U.S. National Register of Historic Places in 1975. It was a home of Dr. William James Mayo (1861–1939), one of seven founders of the Mayo Clinic. It was donated by Dr. Mayo in 1938 to serve as a meetingplace for the Mayo Foundation, and today is commonly called the Foundation House.[1]