The school's
junior school, Ormiston, was established in 1849 and is the oldest girls' school on Australian mainland and the oldest in Victoria. The history of Ormiston is one of private enterprise by pioneer women, mostly young women, who spent years of their lives in service of the infant state educating girls of the time. They enjoyed no financial assistance from church or public funds. At 166 years of age, Ormiston has only had a few sites. For 52 years it operated out of buildings in East Melbourne before moving to Mont Albert in 1901. In 1964, Ormiston accepted the offer to merge with Camberwell Girls Grammar School. The following year, the two schools officially become one with the junior students working from the St John’s Avenue Campus (Ormiston) and the senior students at the Torrington Street campus. In 2007, the two schools were formally united as one with the opening of the junior school on Mont Albert Road. ==House system==