If new space is required, you can contact either your local administrator, HoD, or the Physics Infrastructure team. These parties will have current information about if there is space readily available, and can also help with the movement of any office furniture, etc.
To be advised later. New office furniture can be bought by the department, with HoD approval and Facilities approval. All office furniture purchase must be discussed prior to any order being placed with your school administrator, HoD and Facilities team.
Use Mandatory/Preferred suppliers where appropriate
Your current office should be listed on your profile in the Physics people database.
Contact a school administrator or email admin.physics@anu.edu.au