An early scene in the show has Dunross driving around in his big clunky Merc, passing lots of local places of interest etc. Here is one grab which features a house called "Katoomba" at #22 Magazine Gap Road. It was up in scaffolding when the filming was done but just for a renovation rather than redevelopment.
Incidentally, the road that Dunross drives down (top picture, bottom left) is actually the driveway leading to #26, and not a public road as the sequence seems to indicate.

