Osborne House is a historic building built in 1858, located in North Geelong, Victoria, Australia.
The house was leased for a number of years, but was finally sold by Muirhead's executors to James Francis Maguire in 1878.
The Trust offered the house to the Royal Australian Navy in 1911, but the proposal was not accepted at that time.
The college was opened by the Governor General, Lord Thomas Denman on 1 March 1913, with Prime Minister Andrew Fisher present.
The amalgamation of the shire into the City of Greater Geelong in 1995 saw the house lie empty for a time.