The college aims to provide all first-year students with a place in either a shared twin or single room in college, but in exeptional circumstances may not be able to do so. In addition students might be able to spend one further year in residence in college, but this cannot be guaranteed. Students are expected to live out for at least one year and it may well be two years (or three years for a four year degree). There are some rooms each year for third or fourth year students, and these are allocated via a room ballot. The Master, Senior Tutor, and Student Support Administrator are responsible for the allocation of all rooms in College.