Eby's NDP government boosted housing starts by 11%. Rental prices still went up in Vancouver and the surrounding area because an 11% increase is a pittance compared to the insane demand from current immigration policy. Assuming that's even possible nationally and that the Federal NDP will have similar policies (both of which are dubious assumptions), that's not going to be adequate to keep up with the insane surge in immigration all of the big three parties seem to be behind. The Liberals at least appear to be somewhat open to minor course corrections but the NDP has historically and is currently the most pro immigration party in the country and it's not possible to get market conditions to improve if you want the population to grow by 2,000,000 people a year.

You can't bring in enough people for 800,000 homes if you have historically built around 250,000 and the best government in the country manages an 11% increase without inflating rents and making the housing crisis worse. We need to radically slow the insane surge in demand so that building more housing has a chance to keep up. Canada has historically had 2.3 people per home so if we increase builds to 300,000/year we can support bringing in roughly 660,000 people with stable prices. If we bring in 2M everyone can guess what will happen.