Ultimately, it's going to require a jump in unemployment or a reduction in LVR's for there to be any serious issue in Australia in the short term. By serious, I mean a greater than 5 or 10% adjustment backwards.
Rates are lower than normal at the moment, and that has created "short term memory loss" for many investors, who forget all too quickly that when rates were hovering in the 8's and 9's in 2006 and 7 and 8, prices just about everywhere were going just about nowhere....
Big rate cuts in 08 and 9 created precisely what we are seeing now- a 6 - 12 months run on prices... but when rates started nudging back above 6% by 2011- the market became lake Eyre and was as flat as a tack.
Suddenly, rate cuts leading into Spring 2013 and 6 months of sunshine in Sydney prices and everyone's raving about property being 6 foot tall and bullet proof again. But as prices surge, sensitivity to rate rises increases...
While Australians cant walk away from mortgages, an increase to unemployment and or a 1-2% RBA increase may well see investors offload loss making stock to get their heads above water... and we could well see a 5-10% adjustment.
But it would take big unemployment and big credit restrictions to see US or European type price collapses here....