Thomas Coates (1957–1971) and David Prest (1972–1991) were long-serving headmasters during a period of substantial change, particularly during Prest's tenure. The school purchased land at Syndal in 1955, and for the next few years considered selling the St Kilda Road campus to fund building at its new location. However, by 1959 it had decided to retain its St Kilda Road location, move the Junior School and establish playing fields at Syndal. Following a period of fund-raising, the new campus (renamed Glen Waverley campus in 1978) opened in 1966.