During 1991 the school gymnasium was completed at a cost of AU$1.8 million[8] and officially opened on 26 July 1991 by Bill Wood.

[9] In more recent times special purpose rooms for dance and drama, computing, multi-media and problem solving in mathematics have been added.

During 2007[10] and 2009 the school undertook upgrades[11] which included new toilets, new carpeting and an update to the gym.

On 9 June 2017, Yvette Berry, the ACT Education minister opened a refurbished kitchen.

[15] The ACT German Language School also holds classes at Alfred Deakin High on Saturday mornings from 9:00am until 11:30am.