While you've described the ideal case, I don't think it's true that the ship has sailed on affordable housing. At least in Australia, most of the increase in v

While you've described the ideal case, I don't think it's true that the ship has sailed on affordable housing. At least in Australia, most of the increase in value comes from speculators and investors taking advantage of very generous tax concessions (negative gearing, capital gains tax reductions, reserve bank handing out low-interest loans to property investors). Rental vacancy rates in Sydney and Melbourne have remained pretty much static over the past decade (excluding COVID), yet prices have soared by 60-70%.