Further extensions and renovations occurred when it became the governor's residence in 1873, with an additional seven rooms being added creating the L-shaped building.

[5] Following the closure of the depot in 1872 seven more rooms with an exterior verandah were added to the building for renovations to convert it to the Governor's Residency.

From 1953 to 1970 the building had various other uses including a school hostel, a sea scout headquarters, naval depot and training facility.

[5] Elizabeth II visited the site in 1977 to officially open the Lockyer Memorial as part of the 150th anniversary of first British settlement in Western Australia celebrations.

[5] The site received temporary heritage listing in 1996,[2] and in 2010 further renovations were completed creating several new galleries used to display Mineng and settlers' stories.