Housing shortfall, costs and affordability

[panamaniac]

I saw this, but was left wondering who would donate the land and, more importantly, why would homebuilders set aside their profit making activities to engage in at-cost construction (I assume they are too busy to do both)?  I hope it's real, but colour me sceptical, for now.

Edit:  First question answered in today's Record - land to be donated or sold for nominal cost by the various levels of government. 

Several developers are reportedly on board with this, but I'll wait and see.