Zoning in the United States

Based on Wikipedia: Zoning in the United States

The Hidden Rules That Shaped America's Cities

Imagine waking up one morning and finding out that the house you've been looking at cannot be built on a certain street because of what already exists nearby. This is zoning, and it shapes nearly every American city in ways most people never think about.

What Exactly Is Zoning?

Zoning is essentially a system of laws that divides a city's land into distinct districts, specifying what can be built where. These rules determine whether a property can become a single-family home, an apartment complex, a factory, or remain empty. Think of it as a detailed instruction manual for how land can be used across an entire metropolitan region.

The concept sounds mundane, but its consequences are anything but. Zoning dictates how dense your neighborhood can become, what businesses can open near your home, and ultimately whether you can afford to live in a particular area at all.

The Birth of American Zoning

The story of zoning in America begins in the early twentieth century, when cities like New York were growing rapidly. Urban centers faced new challenges: overcrowding, industrial pollution, disease outbreaks, and chaotic development that seemed to ignore any notion of orderly planning.

Edward M. Bassett, who wrote the first comprehensive zoning ordinance in the United States, described the problems vividly around 1922. Skyscrapers were being built unnecessarily tall, their cornices projecting into streets and shutting out light and air. Business centers became congested rather than rationally spread out. Transit and street facilities were overwhelmed.

The need for formal zoning arose at this turning point in American cities' histories. But here's where the story takes an uncomfortable turn.

The Racist Origins of Zoning Laws

Many of the earliest zoning laws in America were influenced not just by practical planning concerns, but by deliberate efforts to enforce racial and class-based segregation.

In Los Angeles, the first municipal zoning ordinance in the United States was passed on July 25, 1904. Known as Ordinance 9774, it established three residential districts where laundries and wash houses were prohibited. The prohibition had a clear racial component because many of these businesses were owned by Chinese residents.

Similar patterns emerged across the country. In Modesto, California, an ordinance in 1885 banned wash houses from certain areas—often cited as America's first true zoning ordinance. These restrictions were not abstract; they directly targeted specific communities based on ethnicity and race.

Between 1910 and 1917, many American cities passed residential segregation laws explicitly based on race. Baltimore passed such a law in December 1910, implemented on a block-by-block basis. Richmond, Virginia followed just months later. Over the next several years, southern cities including four in Virginia, one in North Carolina, another in South Carolina, and Atlanta established similar race-based zoning ordinances.

The Supreme Court eventually struck down these ordinances, with the landmark case Buchanan v. Warley ruling that race-based zoning violated the Fourteenth Amendment.

How Zoning Transformed American Suburbs

After these racial ordinances were declared unconstitutional, many localities discovered another tool: general citywide zoning restrictions. And in suburban areas across America, a particular type of zoning became dominant—single-family housing mandates.

According to The New York Times, "single-family zoning is practically gospel in America," as vast numbers of cities zone land extensively for detached single-family homes. Low-density residential zoning is far more predominant in American cities than in other countries.

But these restrictions didn't just affect what could be built—they were applied in ways that prevented African Americans from moving into predominantly white neighborhoods under the belief that their presence would lower property values. This wasn't coincidental; it was often the explicit purpose.

The Constitutional Foundation

The constitutionality of general zoning ordinances was upheld by the United States Supreme Court in the landmark 1926 case Village of Euclid, Ohio v. Ambler Realty Co. This ruling established that local governments had the power to regulate land use through their police powers, giving legal foundation to the widespread adoption of zoning laws across America.

The Cost of Exclusionary Zoning

Today, the effects of these historical decisions are everywhere visible. A housing shortage in many metropolitan areas has created growing public attention and political debate about zoning laws.

Studies indicate that strict zoning regulations constrain the supply of housing, inflate housing prices, increase homelessness, and contribute to inequality, a weaker economy, and racial housing segregation.

The economic impact is staggering. Some estimates suggest that restrictive zoning in the United States may result in hundreds of billions to over a trillion dollars per year in lost economic output.

Zoning laws that prioritize single-family housing have also raised concerns about housing availability, affordability, and environmental harms.

The Politics of Density

Interestingly, support for local zoning against multifamily housing is concentrated among white, affluent homeowners. There are no substantial differences between liberal and conservative homeowners in their opposition to the construction of dense housing in their neighborhoods.

However, among the mass public and elected officials, Democratic constituencies are more likely to support dense, multi-family housing—reflecting a divide between what elected representatives often advocate and what existing residents prefer.

Legacy of Exclusion

The story of American zoning reveals how seemingly neutral laws shaped the geography of opportunity in profound ways. From the Chinese laundries banned in Los Angeles a century ago, to the single-family suburbs that defined metropolitan growth throughout the twentieth century, zoning has often served as a tool for exclusion rather than inclusive planning.

Today's debates about housing affordability, racial equity, and economic growth all trace back to these foundational decisions made decades ago—decisions that continue to shape where people can live, work, and thrive.