A trigger to cause the Austrailan housing crash?

Bireitbart reports on the AFP article:

Australia Saturday clamped down on foreigners buying property after complaints that a rapid influx of Asian money had helped make its housing among the most expensive in the world.

The government reimposed tough rules relaxed in 2008 that say temporary residents need permission to buy homes and must sell when they leave, while foreigners investing from abroad can only buy new properties.

The rules are backed by stiff new penalties including compulsory sell orders, as well as expanded monitoring and a crackdown on real estate agents who help foreigners flout the rules