Canberra actually - it’s an old dairy building that’s part of Duntroon (one of the original homesteads of the region but more well known for being where RMC/ADFA is). It pre dates Canberra by a good bit though since development of the city only really began to gain traction in the 1920s.
Kangaroos are the clear winner in my experience, but we’ve also got possums and various parrots (e.g. sulphur crested cockatoos). Wombats too but they’re less common to see.