 In 1930, the City Council decided to replace the open drain that traversed the eastern end of the site with a pipe drain, with the Department of Public Instruction contributing £250 towards the cost.A large embankment was formed to the east of the school buildings in 1931, along which the stone-pitched terraces were also reportedly constructed during the Great Depression.In 1933 the school grounds were extended by a further three acres (1.2ha) to the north, which included a concentration of large eucalypt trees, resulting in the current seven acre (2.8ha) site.