The Protected Class
In 75% of residentially zoned land in America's major cities, it is illegal to build anything other than a single-family detached home. Not economically unfeasible. Illegal. A property owner who wants to build a duplex on their own land — subdivide their lot, add a mother-in-law suite, convert an attic into a rental unit — cannot do so in most American cities without a variance that requires public hearings, neighborhood approval, and months of bureaucratic process.
The result is artificial scarcity. And artificial scarcity produces exactly what economic theory predicts: elevated prices.
Who Benefits
Existing homeowners. Specifically, existing homeowners in desirable neighborhoods who purchased their homes before the current price escalation. Restrictive zoning protects their property values by limiting the supply of housing that might compete with their investment.
This isn't a progressive-vs-conservative issue. It's an insider-vs-outsider issue. The homeowners who show up to planning commission meetings to oppose new development aren't villains — they're rational actors protecting their largest financial asset. But the system that gives them veto power over what their neighbors build is a market distortion that costs the economy approximately $1.6 trillion annually in reduced productivity and mobility, according to a widely cited Hsieh-Moretti study.
The Conservative Case for Reform
Property rights mean the right to use your property as you see fit, subject to reasonable safety and nuisance standards. Telling a landowner they cannot build a duplex on their lot because their neighbors prefer the aesthetic of single-family homes is not a conservative position — it's a collectivist one.
Free markets require free entry. When zoning laws prevent builders from responding to housing demand with increased supply, they are functioning as government-imposed market restrictions. The same conservatives who oppose government interference in healthcare, energy, and labor markets should oppose government interference in housing markets.
The most effective housing policy is the simplest one: let people build. The market will sort the rest — if we let it.
What Reform Looks Like
Allow duplexes and triplexes by right in all residential zones. Eliminate minimum parking requirements — let the market determine how much parking a project needs. Reduce minimum lot sizes. Streamline permitting timelines. These aren't radical proposals — they're the default in most of the developed world outside the United States.
Housing affordability isn't a demand problem. We don't have too many people who want homes. We have too many laws preventing homes from being built. The distinction matters — and the solution follows from the diagnosis.
