The last statement I read by the IMF (a couple of weeks ago in the AFR) was something like " Australian Residential property is only overvalued at most by 5%, and prices in Australia will not collapse as they have in the US or UK." The IMF also believes our economy is comparitively robust by world standards.
So I do not know which RECENT SOURCE OF DATA you are refferring to that quotes the IMF as saying "Australian residential property is overvalued by 30%???
But I guess such innacurate and ludicrous statements are typical of DOOM AND GLOOM MERCHANTS!!!