Disagree.  The supply is there.  What is impacting affordability is that there is too much speculation.  Currently the money to be made in real estate has nothing to do with actually housing people.  It's a game for those with the money to place their bets on how much higher the market can be driven. Most new housing is held by buyers for one year or less and being flipped multiple times before actually being used as housing.  Unless the federal and provincial govts do something about domestic and foreign money laundering and tax avoidance, more land for building won't make any difference.