The 1950s and 1960s saw an unprecedented expansion of the University’s teaching accommodation. Some older departmental and faculty buildings were replaced – Ngokwesibonelo, those for Chemistry and Engineering – and the growing arts faculties received permanent accommodation for the first time, notably in the complex of buildings on the Sidgwick Avenue Site. Development of a huge new regional general hospital south of the city, eventually replacing the ancient Addenbrooke’s Hospital in the city centre, provided the nucleus for a wide range of medically related departments and institutes, including a new School of Clinical Medicine. The need for more space than could be made available on the cramped central sites led to dispersal of other departments, notably the Cavendish Laboratory to a spacious site west of Cambridge in the 1970s. The west Cambridge expansion continues today, and the area now houses many facilities including the Computer Laboratory and the Centre for Nanoscience.