According to Neptis, there is no shortage of serviced, permitted land. The provincial growth plan itself says 70% houses, yet developers are not building them.  If we were oversupplied with condos and undersupplied with houses, why have condo prices also bloated to the nosebleeds of affordability?  I have no doubt there's some effect there, but it doesn't strike me as the dominant one. 

This doesn't sound like a government problem to me. It sounds like the developers themselves have a heavy hand to play at it,  even if the industry association tries to divert blame away from itself.