The Old Mill Building is the oldest campus building of the University of Vermont and is located along the central eastern side of the "University Green" in Burlington, Vermont.HistoryThe building was constructed in 1825 on the same site as its predecessor, which had burned down in 1824. The original Main College building was constructed in 1801–02 by the architect and master builder, John Johnson, who had also designed its replacement.On April 26, 1825, the cornerstone for North College was laid by Vermont Governor Cornelius P. Van Ness. Two months later on June 29, General Lafayette laid the cornerstone for South College during his visit to Burlington while on his national tour.In 1825, the Main College consisted of two three-story 75ft x 36ft buildings known as the "North and South Colleges". A third three-story building (with a length of 86ft), known as the "Middle College" was erected between the two in 1829. Each of the buildings was constructed about 7–8 feet apart to prevent fire from destroying the entire facility, as had occurred previously in 1824. In 1846, the buildings were connected, however they were not accessible to one another within. The building has undergone substantial renovations during; 1882–83 (in a modernization effort), 1918 (after a fire had struck South College), 1957–58 (with the addition of Lafayette Hall to South College), and in 1995–97 (with the addition of the Annex).Old Mill was added to National Register of Historic Places as part of "University Green Historic District" on April 14, 1975.
