), is a statutory authority that delivers heritage services, including conservation and interpretation, on behalf of the Western Australian government and community.
[2] It was created in 1959, following the model of the National Trust in England.
[5][6] As an organisation it was registering properties and localities before state heritage legislation was enabled in Western Australia, setting a framework and grounding for governmental preservation and conservation of heritage.
[7][8] The National Trust is custodian and owner of a range of historically significant properties: A significant number of historic properties throughout Western Australia were registered by the Trust in the 1970s prior to later registrations by local government and state agencies - an example is Toodyay Court House, which was classified by the Trust on 7 June 1977 and included on the Shire of Toodyay's Municipal Heritage Inventory on 27 August 1998.
On 14 February 2003 it was placed on the permanent state heritage register.