The context you need, when you need it

When news breaks, you need to understand what actually matters — and what to do about it. At Vox, our mission to help you make sense of the world has never been more vital. But we can’t do it on our own.

We rely on readers like you to fund our journalism. Will you support our work and become a Vox Member today?

American cities are paying too much for sprawling housing

Compact neighborhoods cost cities half as much to maintain. So why don’t we build more of them?

The housing abundance movement has won more of the intellectual argument than anyone might have predicted a decade ago. Across much of American politics, even in Zohran Mamdani’s New York (listen, I love the guy), it is now at least possible to say out loud that we have too many pointless rules making it impossible to build enough housing. But that doesn’t settle the politically harder questions of…where exactly should the housing go, and what should it look like?

There has often been disagreement among housing reformers on that point — or at least a difference in emphasis. Should advocates try to add homes in already vibrant urban and suburban areas, which would add density but run into a buzzsaw of zoning codes and angry neighbors? Or should the focus be building at the urban fringe, in the form of sprawl, where land is cheap and plentiful and obstacles to building are fewer?

This story was first featured in the Future Perfect newsletter.

Sign up here to explore the big, complicated problems the world faces and the most efficient ways to solve them.

These approaches, known respectively as infill and greenfield development, aren’t necessarily opposed; with America millions of homes short, most housing experts would say that we need both. But there are many reasons to prefer building in over building out. Building on top of or in between existing development reduces the toll on the environment and wildlife, minimizes commute times, and better supports compact, walkable, livable communities. And a recent report from the Pew Charitable Trusts’ housing policy initiative, the World Resources Institute, and the research firm ECOnorthwest advances another, less appreciated reason to favor infill: It could help keep your city solvent and maybe even keep your property taxes down.

How? The researchers simulated different future housing construction scenarios across 10 diverse states, including fast-growing ones like Arizona and Texas and slower-growing states like Pennsylvania. They then compared the public costs of essential services like roads and sewer lines for homes built within existing communities versus those built at the edge of cities.

Each home developed near jobs, shops, and transit, according to the report, would require upfront infrastructure expenses about $21,000 less on average than those added at the urban fringe, amounting to a one-third........

© Vox