The buildings were built in the 1800s.The buildings have basement levels, ground floor levels, and 3 upper levels. Buildings 17 to 20 house the School of Mathematics. The main entrance is located on the buildings basement level, but the ground floor level in the Hamilton concourse corridor. This entrance has a swipe card access for students and staff, at the time of this audit, the swipe access card device was not working. There is also the staff library on the basement levels. There is a staff room located on the third floor level of building 18, male and female toilet facilities on the ground and first floor levels of building 18, and building 20 second floor level. Some part of building 20 houses the Centre for Gender and Women Studies. Building 21 is the Oscar Wilde Centre.