That's a bad idea, too. For example, in Fremont right now, there's a development that was built without being placed in a school district. So the students who will live there have no real school.

Also, there are serious environmental impacts that need to be considered every time you build a new housing unit.

Outlawing zoning completely is a bad idea too: you'll end up with housing units built next to noisy factories or smelly plants, and then the people in the new houses will complain to get the factory shut down, even though the factory was there before they were, and it was making noise when they moved in.

Furthermore, when you build new housing, you need to consider how those people are going to get transportation, water and electricity (and heating in most places). You can't just throw up a housing unit anywhere and expect those things to be built magically.