Functions

Acquired by Defence in 1949, RAAF Glenbrook is located in the foothills of the NSW Blue Mountains, north-west of Sydney.

This site houses Headquarters Air Command, and provides office space and a site for Cadet training.

Address

Great Western Highway
Glenbrook NSW 2773

Size

22.2 hectares

Occupants

• Australian Defence Force personnel: 150–200
• Australian Public Service personnel: 10–50
• Australian Defence Force Reserves: 100–150
• Cadets: 100–150

People are and will remain Defence's most important capability. The Defence Estate Audit recommendations will enhance Defence work environments, ensuring our estate is a key point of attraction and is fit-for-purpose for both current and future members of the workforce. These improvements will strengthen the overall appeal of working for Defence.

Relocation

Consistent with the Government response to the Defence Estate Audit, consolidation of all domain headquarters to a single location will be informed by further analysis.

The further analysis will include an assessment of Defence Establishment Orchard Hills, 12km away. 

Cadets will remain in the region and relocate to Defence Establishment Orchard Hills, 12km away, or a new lease at a community venue or school. Defence will engage with potential venues to facilitate this.

History and heritage

The former Lapstone Hotel is recognised on the State Heritage List, though it is not listed on the Commonwealth Heritage List.

Community information session

Defence held information session in New South Wales, Glenbrook on Monday 4 May 2026 to engage with the community on the Defence Audit and divestment of sites. Community members shared valuable local insights and feedback with Defence. This feedback will help inform transition planning and next steps.

Register to receive future updates about divestments in New South Wales.

Factsheet

RAAF Glenbrook estate audit factsheet (PDF, 143.64 KB)