Worries over "negative equity", owing more than the properties such as apartments worth, and unsafe tower builds.
Are we facing similar market corrections?
Expert warns Australia could turn into slums in 20 years
60 Minutes Australia
"Housing and banking expert Martin North North has criticised developers and the housing industry for 'throwing up' high-rise buildings at such alarmingly fast rates.
He warned viewers that significant defects and safety concerns are imminent."