For a hundred years, the single most important fact about a piece of land, what you are allowed to build on it, has been decided a few miles away, by a room full of neighbors.
Zoning was always local
Zoning is one of the most local powers in American life. A city council draws the districts, a planning commission hears the cases, and the people who show up to the meeting shape the outcome. That made what you could build on a parcel a function of local politics, and local politics is famously about who bothers to attend on a Tuesday night. For land, it meant the upside on a parcel was gated by sentiment at least as much as by anything written on paper.
The decision is moving up
Over the last several years that has started to change. Facing a housing shortage that restrictive local zoning helped create, a growing number of states have begun writing housing rules directly, and preempting local control to do it. Statewide legalization of accessory dwelling units, mandates to allow duplexes or small apartments on formerly single-family lots, and required upzoning near transit have all migrated from city halls to statehouses. The specifics differ by state, and the politics are genuinely contested, with real local backlash and plenty of litigation. But the direction is consistent: the decision is moving up.
Statute beats sentiment
Set aside whether this is good policy, and notice what it does to predictability. A statute applies uniformly. It has a text, and it says the same thing on every parcel it touches. Neighborhood sentiment does none of that. It is different on every block, it shifts with whoever is angry that season, and it is nearly impossible to read from the outside. When the rule that governs a parcel comes from a statute instead of a hearing, it turns into something you can actually read, and apply, and count on.
Why this matters for land
For anyone trying to see land value ahead of the market, this is a real shift. The classic heuristic, that this neighborhood will never allow more density, was always a bet on sentiment, and it gets less reliable as sentiment stops being the thing that decides. An objective overlay, simply asking what the law now permits here, gets more valuable in its place. The upside on a parcel can change by operation of statute, quietly, without a single contentious council vote, and it will be written down somewhere a model can find it.