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Arbitrary Lines: How Zoning Broke the American City and How to Fix It



Arbitrary Lines: How Zoning Broke the American City and How to Fix It PDF

Author: M. Nolan Gray

Publisher: Island Press

Genres:

Publish Date: June 21, 2022

ISBN-10: 1642832545

Pages: 256

File Type: Epub

Language: English

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Book Preface

As Americans, we take comfort in the idea that we have the right to plan our own lives. We are unique in our confidence that it is within our power to move to a better life, as so many of our ancestors did. Where other countries talk about managing stagnation and even decline, we stand undaunted in our assurance that the limits of our wealth and the frontier of innovation lay well into the future. Liberated from Old World hierarchies, we Americans fancy our home a place where any person, regardless of their color, creed, or class background, can improve their lot. And if there are broader forces that threaten our way of life, so much the worse for them; progress, and the change it brings, is intrinsic to who we are.

The idea that a stodgy rule book could set the terms of our lives from on high is fundamentally at odds with our national ethos. And yet, such is the state of America under zoning. From unremarkable origins, the arbitrary lines on zoning maps across the country have come to dictate where Americans may live and work, forcing cities into a pattern of growth that is segregated and sprawling. Once the exclusive domain of local planners, concurrent crises surrounding housing costs, underwhelming economic growth, racial and economic inequality, and climate change have thrust zoning into the public consciousness. Now more than ever, there is an appetite for reform. Yet we can do better: it’s time for America to move beyond zoning.

At surface level, zoning is an impossibly boring topic, even by the terms of public policy debate. The mere thought of a weeknight zoning hearing or a seven-hundred-page zoning ordinance is enough to make even the most enthusiastic policy wonk’s eyes glaze over. Until recently, zoning might have been blithely dismissed as a mere technical matter, simply a way of rationalizing our cities, a planning policy so obvious as to be beyond reproach.

But zoning is at once so much less and so much more. While occasionally used as a stand-in for city planning or building regulations more broadly, its scope is far more limited: at a basic level, all zoning does is segregate land uses and regulate densities. Your local zoning ordinance sets out various districts, each with detailed land-use and density rules, while an associated local zoning map establishes where these rules apply. The bread and butter of what most people think of as city planning—such as streets planning or building regulations—has almost nothing to do with zoning.

Yet from these seemingly innocuous zoning rules have emerged a set of endlessly detailed parameters controlling virtually every facet of American life. Arbitrary lines on zoning maps determine where you can live, by way of allowing housing to be built here but not there. Through a dizzying array of confusing and pseudoscientific rules, from “floor area ratio” restrictions to setback mandates, zoning serves to heavily restrict the amount of housing that may be built in any given neighborhood and the form it may take. In most major cities, zoning restricts roughly three-quarters of the city to low-slung single-family housing, banning apartments altogether.

The combined effect is that, in already built-out cities, zoning makes it prohibitively difficult to build more housing. As a result of the further tightening of zoning restrictions beginning in the 1970s, median housing prices have dramatically outpaced median incomes in many parts of the country over the past half century, such that millions of Americans now struggle to make rent or pay their mortgage each month. That is, if they have the luxury of having a stable home at all: in places where demand for new housing is especially high—as in cities like New York and Los Angeles—zoning restrictions have facilitated acute housing shortages, with attendant surges in displacement and homelessness. The COVID-19 pandemic has only expedited these trends, with home prices in 2020 rising at the fastest rate since 1979.1

The arbitrary restrictions that zoning places on cities also show up in our capacity to grow and innovate as a nation. By severely limiting new housing production in a handful of our most productive cities—including San Jose and Boston—we have made moving to our most prosperous regions a dubious proposition. Your income might double if you were to move from Orlando to San Francisco, but your housing costs would quadruple. Should we be surprised that many people are turning down that deal? For the first time in history, Americans are systematically moving from high-productivity cities to low-productivity cities, in no small part because these are the only places where zoning allows housing to be built. According to the 2020 Census, the population of California—one of our most productive and innovative states—is now basically stagnant, such that the Golden State will be losing a congressional seat for the first time in its 170-year history.

The downstream economic implications of this unprecedented reversal of historic trends are hard to overstate. After all, big cities make us more productive, in that they allow us to find a job perfectly suited to our talents and exchange ideas with colleagues working on the same issues. They provide a platform for individuals to experiment and innovate, nursing the young firms that go on to remake the American economy every few decades. To the extent that zoning has made it exponentially more difficult for Americans to move to these hubs of activity—for a software engineer to relocate to San Jose, or for a medical researcher to relocate to Boston—we are all poorer as a result.

Even beyond so-called “superstar cities,” zoning shapes American life in many subtle but nefarious ways. As the Black Lives Matter movement has thrown into stark relief, America still has a long way to go in providing equal opportunity for all. And yet, few American cities recognize the fact that their zoning codes were drafted with the express intention of instituting strict racial and economic segregation. To this day, “the wrong side of the tracks” is not merely a saying but a place that is written into law as a zoning district drawn on a zoning map. To the extent that zoning can prohibit apartments in this neighborhood, or require homes to sit on a half-acre lot in that suburb, zoning is perhaps the most successful segregation mechanism ever devised.

This state of affairs is as true in the conservative suburbs of southern cities like Nashville and Atlanta as it is in progressive midwestern college towns like Ann Arbor and Madison. Tucked away behind a veil of “protecting community character,” zoning has been used to determine who gets to live where since its inception. In practice, this has been used toward the end of rigid economic segregation, which in the American context often means racial segregation. In virtually every suburb in America, zoning maintains a kind of technocratic apartheid, preserving those areas most suitable to housing for the wealthy while locking less privileged Americans into neglected areas far from good jobs and quality public services.

Similarly, zoning makes more environmentally friendly forms of urban growth effectively illegal. By banning developers from building up, zoning forces them to build out. In the 2020s as in the 1950s, the lion’s share of American housing growth continues to occur out on the edge of town, gobbling up farmland and natural areas that might otherwise have remained unbuilt. Despite burgeoning demand among a cross-section of Americans for apartments and townhouses closer to job centers, zoning locks cities into an urban design pattern—single-family homes sitting on vast lawns—that increasingly doesn’t make environmental sense. Smaller homes with a shared wall can dramatically reduce residential energy consumption, and thus emissions, yet this is the precisely the type of housing that zoning makes most difficult to build.

At the same time, zoning assumes universal car-ownership, and all the emissions and traffic violence this entails. It does so by strictly segregating uses—no more corner groceries in neighborhoods—and forcing developers to build giant parking garages even in contexts where most residents or employees might prefer to bicycle or take the train. If you have ever wondered why more Americans don’t walk or ride buses to work, as in most other developed countries, the simple answer is that it’s illegal. In most American cities, zoning prohibits the densities needed to support regular bus service, let alone light-rail. The type of walkable, mixed-use, reasonably dense development patterns that might help to ameliorate climate change—patterns that prevailed before the twentieth century—are outright prohibited under most American zoning codes.

The good news is that it doesn’t have to be this way. Reform is in the air, with cities and states across the country critically reevaluating zoning. In cities as diverse as Minneapolis, Fayetteville, and Hartford, the key pillars of zoning are under fire, with apartment bans being scrapped, minimum lot sizes dropping, and off-street parking requirements disappearing altogether.2 Misbehaving suburbs find themselves under increasingly strict state scrutiny, with tighter rules requiring that each municipality allow its fair share of housing. More broadly, American urbanists are looking abroad for alternative ways to regulate land, including Japan’s liberal approach to zoning.

But we can do better than small reforms. After all, zoning isn’t merely a good policy misapplied toward selfish ends. Zoning is a fundamentally flawed policy that deserves to be abolished. Set aside for a moment the debilitating local housing shortages, the stunted growth and innovation, the persistent racial and economic segregation, and the ever-expanding sprawl: the very concept of zoning—the idea that state planners can rationally separate land uses and efficiently allocate density—has repeatedly failed to materialize. Far from the fantastical device imagined by early twentieth-century planners, zoning today has little to do with managing traditional externalities and works largely untethered from any guiding comprehensive plan.

It’s high time we accept the need for zoning abolition and start thinking about what comes next. Happily, zoning is hardly the final word on managing urban growth. Cities found ways to separate noxious uses and manage growth for thousands of years before the arrival of zoning, and they can do the same after zoning. Indeed, some American cities—including Houston, America’s fourth-largest city—already make land-use planning work without zoning. To the extent that zoning has failed to address even our most basic concerns about urban growth over the past century, it’s incumbent on our generation to rekindle this lost wisdom and undertake the project of building out a new way of planning the American city.

This book lays the groundwork for this ambitious cause in three parts: Part I provides a clear explanation of what zoning is and where it comes from, clearing up common confusions and myths about how American cities regulate growth.3 Part II examines four contemporary critiques of zoning: its role in increasing housing costs, restricting growth in our most productive cities, institutionalizing racial and economic segregation, and mandating sprawl. To tie it all together, part III sets out some of the efforts currently under way to reform zoning, makes the case for zoning abolition, and charts out how land-use regulation might work in the post-zoning American city.

This book is hardly the final statement on any of these matters. A complete explanation of zoning and its role in city planning could (and does) fill many textbooks. This book focuses on four popular critiques of zoning, but it would have been easy to add chapters on its role in holding back urban design and architectural innovation, undermining property rights, or fostering corruption. And this book’s discussion of current reforms is hardly comprehensive, to say nothing of the closing meditation on what city planning might look like in a post-zoning world.

In the interest of keeping this book accessible to a general audience—the minute details of subdivision regulation don’t exactly make for beach reading—additional material can be found in the back of the book. The appendix dives more broadly into the nitty-gritty of how planning works in the US. Interested readers should read it at the end of part I. For more information on the various themes and issues covered in this book, see the recommended readings.

One of the most compelling features of the American experiment is the dogged belief that things can always be better, that we need not be beholden to inherited institutions or assumptions. As I argue here, this is especially true of the way we plan our cities. In this regard, negative though it may at first seem, the project of this book is fundamentally constructive: beyond merely arguing against the arbitrary lines that hold us back, this book is a reminder that a more affordable, prosperous, equitable, and sustainable America is possible. Will you be a part of that journey?

Contents

Introduction

Part I

Chapter 1. Where Zoning Comes From

Land Use before Zoning

What Changed?

1916

The Federal Push

Chapter 2. How Zoning Works

How Zoning Is Born

Decoding the City

Everything in Its Right Place

Don’t Be Dense

How Zoning Changes

Patching Up Zoning?

Part II

Chapter 3. Planning an Affordability Crisis

Zoned Out

Mandating Mansions

Housing Delayed Is Housing Denied

Why Did This Happen?

Chapter 4. The Wealth We Lost

How Cities Make Us Rich

Zoning for Stagnation

How Much Poorer Are We?

Chapter 5. Apartheid by Another Name

Zoning for Segregation

All Are Welcome, If You Can Afford It

The Bitter Fruits of Segregation

Chapter 6. Sprawl by Design

Zoning for Sprawl

Assume a Car

Fleeing Sustainability

Part III

Chapter 7. Toward a Less Bad Zoning

The Low-Hanging Fruit of Local Reform

Taming Local Control

Is There a Role for the Federal Government?

Turning Japanese

Chapter 8. The Case for Abolishing Zoning

Why Reform Isn’t Enough

Steelmanning Zoning

Meanwhile, Back in the Real World

Chapter 9. The Great Unzoned City

The Compromise That Saved Houston

How Cities Organize Themselves

Land-Use Regulation after Zoning

How to Abolish Zoning in Two Easy Steps

Chapter 10. Planning after Zoning

It’s the Externalities, Stupid!

Desegregating the Post-Zoning City

Reviving the Plan

Conclusion

Appendix: What Zoning Isn’t

Zoning Isn’t the Market

Zoning Isn’t the Only Kind of Land-Use Regulation

Zoning Isn’t Environmental Regulation

Zoning Isn’t City Planning

Acknowledgments

Notes

Recommended Reading

Index

About the Author


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