The AWM describes the Treloar Resource Centre as "the Memorial's conservation facility and store for large objects of military technology, including aircraft, vehicles, boats, missiles and guns".
[1] From the 1950s the AWM used a warehouse in Duntroon, Australian Capital Territory to store items in its collection which were not on display.
By 2017, the AWM had purchased five parcels of land at Mitchell to accommodate expansions of the Treloar Resource Centre.
[3] The AWM's website states that the Treloar Resource Centre contains "one of the world's leading military equipment collections".
[1] In 2017 the AWM received approval to construct an additional building at the Treloar Resource Centre.