AUSTRALIA’S chronic housing shortage will continue for at least another two years because of record low affordability, according to a new survey. The Housing Industry Association’s National Outlook shows a shortfall between the number of new dwellings being built this financial year and the "underlying requirement" of almost 20,000 dwellings. From 2004-2005 to 2009-2010, demand will have exceeded supply by 77,600 dwellings.