The appearance of the school changed little over the next two decades, however that was changed in 1988. Canterbury had been campaigning for a multipurpose hall for many years, and so there was much disappointment when a major refurbishing program for the original building and the provision of another classroom block did not include a school hall. There was however a transformation of the original building to that of which is present today. The main changes were lowering of the ceilings, replacement of the assembly hall, the conversion of some rooms on the top floor to a multi-purpose library, transferring the administration office to the front entrance, providing study rooms and two new staff rooms, and reducing the size of the original staff room. A ground level and first floor walkway was also constructed along the eastern side of the building.