The market is the problem, not the solution. Because we not only allow, but encourage, speculation in land prices, they keep going up. When the price of land goes up, no new wealth is created (as would happen by building something on the land). So the increase of price is just a way to siphon money from one group (workers) to another (speculators). All the regulations you mention contribute a negligible amount to the ultimate price. Again, the real culprit is the market itself - specifically the market in something none of can really claim to have created - the land.