[hackeraccount]

Is there no easy exit strategy? I think that if you remove the barriers to making more houses people will do just that; that if there are more houses people will buy them.

Would that fix all the housing problems? Probably not but I think it'd fix a number of them.

[averageRoyalty]

Aggressive increase in supply reduces demand, which reduces price of existing stock. Many, many people have a vested interest in keeping that stock at a high price (both single family home owners and investors). Wiping 10 years of payments a family has made off the value of a property overnight isn't popular.

On top of that, housing is a key element of our economy ("safe as houses") and the impact on a big enough drop to make a difference would likely be very bad.