M. Nolan Gray

What if scrapping one flawed policy could bring US cities closer to addressing debilitating housing shortages, stunted growth and innovation, persistent racial and economic segregation, and car-dependent development? It’s time for America to move beyond zoning, argues city planner M. Nolan Gray in Arbitrary Lines: How Zoning Broke the American City and How to Fix It. With lively explanations and stories, Gray shows why zoning abolition is a necessary—if not sufficient—condition for building more affordable, vibrant, equitable, and sustainable cities. The arbitrary lines of 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. 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 re-evaluating zoning. In cities as diverse as Minneapolis, Durham, 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. Some American cities—including Houston, America’s fourth-largest city—already make land-use planning work without zoning. In Arbitrary Lines, Gray lays the groundwork for this ambitious cause by clearing up common confusions and myths about how American cities regulate growth and examining the major contemporary critiques of zoning. Gray sets out some of the efforts currently underway to reform zoning and charts how land-use regulation might work in the post-zoning American city. Despite mounting interest, no single book has pulled these threads together for a popular audience. In Arbitrary Lines, Gray fills this gap by showing how zoning has failed to address even our most basic concerns about urban growth over the past century, and how we can think about a new way of planning a more affordable, prosperous, equitable, and sustainable American city.

The conversation about zoning has meandered its way through issues ranging from housing affordability to economic growth to segregation, expanding in the process from a public policy backwater to one of the most discussed policy issues of the day. In his pioneering 1972 study, Land Use Without Zoning, Bernard Siegan first set out what has today emerged as a common-sense perspective: Zoning not only fails to achieve its stated ends of ordering urban growth and separating incompatible uses, but also drives housing costs up and competition down. In no uncertain terms, Siegan concludes, “Zoning has been a failure and should be eliminated!” Drawing on the unique example of Houston—America’s fourth largest city, and its lone dissenter on zoning—Siegan demonstrates how land use will naturally regulate itself in a nonzoned environment. For the most part, Siegan says, markets in Houston manage growth and separate incompatible uses not from the top down, like most zoning regimes, but from the bottom up. This approach yields a result that sets Houston apart from zoned cities: its greater availability of multifamily housing. Indeed, it would seem that the main contribution of zoning is to limit housing production while adding an element of permit chaos to the process. Land Use Without Zoning reports in detail the effects of current exclusionary zoning practices and outlines the benefits that would accrue to cities that forgo municipally imposed zoning laws. Yet the book’s program isn’t merely destructive: beyond a critique of zoning, Siegan sets out a bold new vision for how land-use regulation might work in the United States.Released nearly a half century after the book’s initial publication, this new edition recontextualizes Siegan’s work for our current housing affordability challenes. It includes a new preface by law professor David Schleicher, which explains the book’s role as a foundational text in the law and economics of urban land use and describes how it has informed more recent scholarship. Additionally, it includes a new afterword by urban planner Nolan Gray, which includes new data on Houston’s evolution and land use relative to its peer cities.

The conversation about zoning has meandered its way through issues ranging from housing affordability to economic growth to segregation, expanding in the process from a public policy backwater to one of the most discussed policy issues of the day. In his pioneering 1972 study, Land Use Without Zoning, Bernard Siegan first set out what has today emerged as a common-sense perspective: Zoning not only fails to achieve its stated ends of ordering urban growth and separating incompatible uses, but also drives housing costs up and competition down. In no uncertain terms, Siegan concludes, “Zoning has been a failure and should be eliminated!” Drawing on the unique example of Houston—America’s fourth largest city, and its lone dissenter on zoning—Siegan demonstrates how land use will naturally regulate itself in a nonzoned environment. For the most part, Siegan says, markets in Houston manage growth and separate incompatible uses not from the top down, like most zoning regimes, but from the bottom up. This approach yields a result that sets Houston apart from zoned cities: its greater availability of multifamily housing. Indeed, it would seem that the main contribution of zoning is to limit housing production while adding an element of permit chaos to the process. Land Use Without Zoning reports in detail the effects of current exclusionary zoning practices and outlines the benefits that would accrue to cities that forgo municipally imposed zoning laws. Yet the book’s program isn’t merely destructive: beyond a critique of zoning, Siegan sets out a bold new vision for how land-use regulation might work in the United States.Released nearly a half century after the book’s initial publication, this new edition recontextualizes Siegan’s work for our current housing affordability challenes. It includes a new preface by law professor David Schleicher, which explains the book’s role as a foundational text in the law and economics of urban land use and describes how it has informed more recent scholarship. Additionally, it includes a new afterword by urban planner Nolan Gray, which includes new data on Houston’s evolution and land use relative to its peer cities.