The old School House at 807 New North Road, pictured below, was built in 1844 as a gentleman’s residence. MAGS' first Headmaster, F.W. Gamble, persuaded the School's Board to buy it from the Child Welfare Department, which had run it as a home for destitute children but had built new accommodations elsewhere. The School House opened in 1927 with 22 boys. The grand old building featured large grounds with tennis courts, a cricket pitch, and vegetable gardens. Headmaster Gamble disliked the word "hostel" and successfully petitioned to name it School House.
The Old School House - circa 1930's
It grew, and remained on that 2.5ha site until 1970, when the existing School House was built on what was a hockey field at MAGS. The old building was demolished and a fragment of open space remains as the Alice Wylie Reserve.

The Vegetable Garden at the Old School House
The new School House (aka the Hostel) has remained in operation since then and accommodates 107 boys in 5 dormitories.
Each dormitory ("House") accommodates 21 boys: Year 9 and 10 boys share a room in single beds, Year 11 and 12 boys share a room with study facilities, and most Year 13 boys each have their own room with study facilities. Each House has three Prefects.
The Houses are named after four early House leaders (Bridger, Fleming, Hunter and Spence) and the foundation Senior Housemaster (Towers – Herbie Towers taught at the School for over half a century). Around the turn of the 21st century, the facility was renamed Towers Hall to honor Herbie Towers. In 2009, the Board of Trustees changed the name back to its original historical moniker, School House.

The New School House - Circa Early 1970's