Is this picture from the 70s
Looks like. I was in Coober Pedy a few years ago and it was pretty much an ordinary town with ordinary buildings. There was a mining museum including an exhibit of how they used to furnish old mines and make houses out of them but I guess modern air conditioning has pretty much ended that.
Edit: ok the town was pretty fucking weird actually and very interesting. But it does appear to be 99% made out of ordinary buildings