You need to remove incentives to invest in property altogether. It's one of the worst and most unproductive markets, and not even a market in practice because everyone needs a home. My personal pope-emperor utopia would forbid companies from owning residential buildings, and tax individuals 10% of house value yearly on any house (with the first two exempted). Redevelopment should be allowed only when the area is in clear state of abandon, with strict rules on the amount of commercial space that can replace residential space.
The property market needs to die -- and I say that as a homeowner.