Two years ago, urban planning and housing experts told us Australia had a shortage of 430,000 social and public housing dwellings. Within 20 years that shortage will be somewhere between 730,000 and one-million dwellings. Increasing the simple supply of affordable housing is crucial, but it's more complicated than numbers. What does it take to design good public and social housing? And what exactly does that good design look like? Director of MGS Architects Rob McGauran joins Cr Bill Harvey from Hobart City Council, and Carly, who lives in social housing in Melbourne's inner-west, provided by Housing Choices Australia, to explore the key ingredients needed to deliver good social and public housing design.