Sweden updates bunkers!

Were any public-use bunkers built in Australia post-WW2? I'm sure there were special secret ones for the government, but what about for the general public?
All new multi-storey buildings in China are required to have bunkers, so its pretty common to be walking through the underground carpark in an office block or shopping centre, take a wrong turn, and end up outside a massive heavy door like you see on vaults in the bank heist movies. There doesn't seem to be any rules about usage capacity though - pretty much every bunker I've seen would be less than 20sqm, and has no equipment, visible water supply etc.