It's hard to see how rent can be disconnected from the property value because if the achievable rent for a property skyrockets that will pull the property's value up.

If rent goes up faster than wages, which cannot go on forever, it means an imbalance between supply and demand. The best way to address this is to rebalance supply with demand, not to be tempted to control prices or whatnot that do not resolve the root cause.

It must also be accepted that the most sought-after areas will be the most expensive and probably out of the reach of many.

Edit: So much for mature discussions, I see...