The original school comprised first two and then three main buildings at opposite ends of the campus. The adjoining Ashdown and Southgate buildings provided facilities, with a further building – known as the Canterbury building – approximately 1/4-mile to the south-east. Uses of the buildings varied. In the 1960s and 1970s, the Canterbury building was used for 'lower school' pupils in the first two years of school, with 'upper school' pupils in fourth and fifth forms moving to the Southgate building, and sixth formers based in the Ashdown building. By the 1990s, pupils in the main part of the school were split equally between Canterbury and Southgate buildings, depending on their house.