I haven't been there in a while, but last I recall, they sort of ran out of land. It's very hilly, the airport basically ends at a cliff. A lot of the land is government controlled and fenced off to provide buffer for secure areas.

A lot of land around that is national park/BLM land, and not accessible. So you've got like, white rock, espanola or Santa Fe to commute in from. I did know a guy who had a light plane and would commute from the east side of Albuquerque to Los alamos by plane.

So, sort of like local zoning, but more like DC. an act of congress to free up some of that land, not as straightforward as visiting some city council meetings.