This is about right, at the AFR:
Sydney and Melbourne’s already faltering house prices are set to slide by another 9 per cent under Labor’s planned property tax changes which would be the equivalent of borrowing costs rising by more than 20 per cent.
A detailed study of how the reforms would affect 84 local government areas by property consultants RiskWise Property Research and Wargent Advisory suggests the impacts would vary markedly around the country.