Connaught Hall is one of the University's original halls of residence, purpose built in 1931 for what was then the Hartley Institution. That original building, now known as the "Old Quad", was added to in 1964 (the same year the dining hall, kitchens and 17-storey tower were added to South Stoneham House) forming the "New Quad" and bringing the number of rooms to 315. Today the accommodation is primarily used by first year undergraduate students who live in the hall for one year only, but originally it was open to a wider range of University members; for example a professor of mathematics, Harold Ruse, lived in Connaught for nine years, from 1937 to 1946.