Done a few AU installs recently, figured I'd share since most guides online are US-focused and miss some stuff that matters here.
House type determines your whole approach:
Brick veneer: drill into mortar joints, not the brick face.
Double brick / weatherboard: no internal cavity. External...
When I came to this board, one of the first things I read here was, "security cameras are like rabbits, they reproduce rapidly". Which I quickly found to be accurate information. My initial plan was 2-3 cameras for a small warehouse. I'm now up to 5 cameras and looking to expand once again
But...