The Greens-NDP can do a few things that would help right now. How about restricting the number of houses a non-citizen can buy to one? Stricter laws against flipping? A retroactive 5% surtax on properties owned by foreigners assessed at over $1 million? Expand the 15% foreigner tax province wide? Allow foreigners to buy property in Canada only if Canadians have reciprocal rights (China has restrictions)? Eliminate pre-sold housing overseas to minimize flipping? End the use of farmland to build monster homes? Register all house sales with RevCan and the buyers disclose their source of income? Eliminate fixed term contracts on rentals? 

As is the case with the Westbank condos in West Van and with most townhouses in my area, increased supply and density doesn't mean anything if the price is completely out of range for anyone except wealthy foreigners who can not only easily outbid you, but can afford to buy several condos and townhouses so they can sit empty for speculation purposes.