Most housing debates fixate on the moral failure of exclusion or the technical glitches of zoning codes. This piece from Works in Progress upends that narrative, arguing that the West's housing crisis isn't an accident of ideology, but a calculated result of property owners protecting their wealth. It reframes the last century of urban planning not as a battle of ideas, but as a history of material incentives that successfully froze development in place.
The Great Downzoning
The article introduces a startling historical claim: for most of the 19th century, the West was actually quite permissive regarding building heights. "In 1890, most continental European cities allowed between five and ten storeys to be built anywhere," the piece notes, contrasting this with the strict limits that would soon dominate. The authors identify a specific turning point they call "the Great Downzoning," a half-century period where these liberties vanished almost everywhere. This is not a subtle shift; the text asserts that "the Great Downzoning is the main cause of the housing shortages that afflict the great cities of the West today."
The argument is compelling because it connects a dry regulatory history to massive economic consequences. The editors cite a study suggesting that loosening restrictions in just five major American cities "would increase the country's GDP by 25 percent." This staggering figure forces the reader to confront the cost of inaction. However, the piece goes further than economics, linking these policies to "baleful consequences for health, family formation, the environment, and economic growth." The sheer scale of the claim demands scrutiny, yet the historical evidence presented suggests this is no exaggeration.
The Downzoning is one of the most profound and important events in modern economic history.
Critics might argue that focusing solely on GDP ignores the legitimate safety concerns that drove early zoning, such as fire hazards or sanitation. While the piece acknowledges that fire safety rules existed for centuries, it insists that "development control systems were otherwise highly permissive" until the Great Downzoning took hold. The distinction is crucial: safety was managed, but density was not restricted until later.
Interests Over Ideology
The most provocative section of the commentary challenges the standard explanation that planners simply believed density was unhealthy. While the piece admits "there is undoubtedly some truth in this explanation," it argues that "the evidence for it is surprisingly ambiguous." Instead, the authors propose a materialist explanation: "The general pattern is that the Great Downzoning was driven by interests more than by ideology."
This reframing is vital for understanding current political gridlock. The text explains that downzoning occurred "where it served the perceived interests of property owners, and failed to happen where it did not." In suburbs, these rules raised property values by banning undesirable development. Conversely, in rural areas where downzoning would lower land values, "ferocious battles were fought" and rural landowners successfully thwarted the reforms. This suggests that the current housing crisis persists not because we are ideologically committed to low density, but because the rules still benefit specific stakeholders.
The historical context provided here is rich and specific. The piece draws a fascinating parallel to the legal mechanisms of the past, noting that developers used covenants to enforce these restrictions before the state stepped in. This echoes the legal complexities found in the companion deep dive on the Court of Chancery, where common-law jurisdictions struggled to enforce private agreements that "run with the land." The text highlights how these private covenants were often more effective than early public laws, creating a "First Downzoning" that set the stage for government intervention.
The Downzoning happened where it served the perceived interests of property owners, and failed to happen where it did not.
A counterargument worth considering is that the shift to public zoning was a necessary evolution to prevent the worst excesses of private exclusion, such as racial covenants. The piece acknowledges that covenants "often excluded sale or letting to non-white people," but it maintains that the primary driver of the Great Downzoning was the desire to protect property values, not just social engineering.
The Path to Reform
The article concludes with a pragmatic, if somewhat cynical, roadmap for the future. It warns that "winning the principled argument for density will not be enough to undo the Great Downzoning, because it never rested chiefly on principled arguments in the first place." This is a sobering reality check for activists who believe that changing public opinion is the silver bullet. The editors argue that reform will only succeed where the economic incentives flip.
In the great cities of the West, the housing shortage has become so severe that "anti-density rules now reduce property values in these places rather than increasing them." This shift in material reality, the piece suggests, may be the key to unlocking reform. "There is growing evidence that property owners opt out of such rules when they have the opportunity to do so," indicating that the coalition for change is already forming, driven by self-interest rather than altruism.
The historical depth of the piece is further enriched by references to the Roman law concept of servitudes, which continental countries used to manage land restrictions. Just as Roman law provided a framework for servitudes that bound future owners, modern covenants and zoning laws have created a rigid system that is difficult to unwind. The text notes that in some places, like Paris, massive fortifications and customs barriers once physically and economically isolated suburbs, a dynamic that echoes in today's economic segregation.
Winning the principled argument for density will not be enough to undo the Great Downzoning.
Bottom Line
The strongest part of this argument is its ruthless focus on material incentives over moral posturing, offering a clear explanation for why housing reform is so politically difficult. Its biggest vulnerability lies in assuming that economic self-interest will inevitably align with public good, potentially underestimating the power of entrenched NIMBYism even when property values are at stake. Readers should watch for how local governments respond as the economic calculus of density begins to shift in major urban centers. The piece leaves us with a clear verdict: the solution to the housing crisis lies not in better ideas, but in better incentives.