A boom period in the 1970s saw C.G.G.S expand in order to cater for a surge in enrolments, thus the junior school is now on a separate campus within the suburb.
A boom period in the 1970's saw C.G.G.S expand with the Junior School moving to a new Campus in Grey Street, Deakin, in order to cater for a surge in enrolments. Today the junior school remains on a separate campus within the suburb.