There's no shortage...In places there's a glut in fact. The city (CBD) is full of apartment buildings constructed by Chinese consortium's with no concept of how Aussies want to live. Many remain vacant, whole buildings if 300+ apartments may have only 20% occupancy, all Chinese.

There's plenty of houses to go around, a lot of urban infill and developments in outlying areas, say, 20-25km from the CBD...There's no cheap houses though. In some of the worst suburbs $200,000 is about the basement for a 3br house. I mean suburbs where you don't want to go and you lock your car doors as you drive though...So yeah, pretty costly.

It's pretty interesting. That link I sent you will go a long way towards demonstrating it. You can trust type in Adelaide and then work your way outwards watching the price changes. There's also links to suburb flyovers (research suburbs) which will show demographics. As a former RE business owner you may find it interesting.