No, that subway was definitely real as well, on what used to be the city circular line. The guy missed a few of the locations such as the Oracle apartment, which is actually an apartment building in Redfern.
The room/lobby with the Aboriginal man at the bottom of the lift, was that the same location ?
https://imgur.com/a/original-seraph-0igD2aP <-- this scene.
I can’t speak to what the apartment interior was who knows?
At the same time I also recall multiple older style kitchens that I’ve been in while growing up or renting in my early 20s that in Australia had these kind of green tiles in the kitchen. It’s quite a popular aesthetic there.