America’s housing was built for a world we no longer live in

The United States is turning 250. Everything we want for the next 50 years starts with fixing housing.

America’s housing supply was built for a world we no longer live in. But what will replace it?

As the nation turns 250, that is one of the most important questions we face in the coming decades. Building enough homes, of the right kind, and in the right places is a prerequisite for economic opportunity and growth. Our crippling housing shortage is upstream of many of the problems that ail the US, from our cost of living and increasingly zero-sum politics to our seemingly intractable national bad mood.

The root of the problem is that the United States governs housing under a nearly century-old paradigm that’s been cracking under growing strain. Since the end of the Great Depression and World War II, when the baby boom massively increased the country’s population and millions of Americans sought relief from derelict urban housing, suburbia has been the country’s default blueprint for development. Big single-family homes, two-car garages, and giant strip malls were not merely consumer preferences. They were also written into law by rigid zoning codes — the rules that dictate what kinds of things can be built where — incentivized by midcentury lending standards, and absorbed into the professional common sense of planners and builders.

America’s housing crisis is the result of an old development model that pushed the country toward single-family suburbia, making housing scarcer, more expensive, and more sprawling.

In the next 50 years, that model will become even less suited to American life.

The suburbs will be central to any housing transformation.

YIMBY reforms are necessary, but probably not sufficient. We also need good urban planning.

The future could be hyper-sprawling, or more vibrant and livable, or, more likely, a combination of both.

The system shaped not just the suburbs, but also many cities, and has kept homes scarce, expensive, and sprawling, resulting in a housing affordability crisis that has come to dominate politics. And in the decades ahead, this pattern will become even more misaligned with the reality of American life. Households are getting smaller, and Americans are getting older. If today’s low immigration rates continue, the US Census Bureau projects the country in 2076 will have fewer families with children and working-age adults, and far more seniors — the inverse of the demographic transition that drove the great suburbanization. Climate change and new technology, such as driverless cars, will also force cities and suburbs and populations to adapt.

US history offers reasons for optimism, showing repeatedly that we can reorganize ourselves with extraordinary dynamism when the occasion calls for it. Our cities have already lived many lives, growing from tiny outposts into world-leading metropolises, before receding again in the wake of suburbanization and de-industrialization, and then more recently gaining new life with influxes of younger generations.

The transformations ahead may not be as physically dramatic as those of the American past, but they call for equally monumental cultural and political shifts in our approach to housing. We’re already making progress: The ascendant “yes in my backyard” (YIMBY) movement has persuaded states and localities to roll back restrictive policies that make it essentially impossible to build enough homes. The effects of those reforms are slowly making themselves felt in more affordable neighborhoods.

But there is still far more to do. Housing reformers will need to turn their attention not just to removing bad regulations like single-family zoning and minimum lot sizes, but also toward reviving a role for government in shaping our communities through real, big-picture planning. Doing so would supply a missing piece in America’s housing agenda — making US cities and suburbs not just more affordable, but more vibrant and livable and helping us better use our existing infrastructure. That will matter even more as a shrinking working-age population makes endless outward sprawl harder to sustain.

A more abundant, more varied, and even more fun housing future is not inevitable, but it is decisively within reach. Here is what the future could look like by America’s 300th birthday, if we commit to making ourselves anew.

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Arthur Nelson, a professor emeritus of urban planning and real estate development at the University of Arizona, has a few words of warning for anyone trying to report on what cities might look like in a half-century: “You’re not going to be right.”

Urban planners tend not to project many decades into the future because what that future will look like invariably hinges on factors we couldn’t possibly imagine today. The most important unknown for our future population and housing needs will be whether the US opens its doors to many more immigrants, as it has done at times in the past. Assuming immigration rates remain low, however, US population is projected to peak somewhere around the mid-21st century and fall thereafter; by 2076, it will have dropped back to today’s size, on the way to declining further.

Despite that uncertainty, many of the housing abundance advocates, policy experts, and urban planners I spoke to for this piece expressed striking optimism that the future of housing will be better than the present, and enthused about how much can be transformed in 50 years. Start with the suburb, where the majority of Americans live today, and where the future of American housing will be decided.

Imagine that, in 2076, you’re walking through a residential neighborhood in La Mirada, California, a midcentury, southeastern suburb of Los Angeles, one of the regions at the epicenter of today’s housing crisis. The bones look much like the suburbs we know today — gently curving streets, sun-baked yards, low-slung buildings set back from the sidewalk — but the old single-family monoculture in many neighborhoods has loosened: Houses built during the region’s mid-20th-century building boom now have small cottages, also known as accessory dwelling units (ADUs), tucked beside them. Some bigger houses have been........

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