Housing Supply & Zoning Reform

The challenge

What's the Challenge?

Housing affordability is usually debated as a demand problem — wages, interest rates, investor buyers. But a large and growing body of research points at supply: the United States has under-built housing relative to household formation for most of the last two decades, and the shortfall is concentrated in the metros with the most jobs. Local zoning is the primary constraint. Roughly three-quarters of residential land in most American cities is reserved for detached single-family homes, a designation that makes duplexes, townhouses, and small apartment buildings illegal to build. Parking minimums, lot-size rules, height caps, and discretionary review add cost and delay. The politics are unusual: the coalition for reform includes free-market conservatives who object to land-use regulation and progressives who want more affordable units, while the opposition includes homeowners of every party who worry about neighborhood change and property values. It is one of the few major issues where the fault line is not partisan.

Where we agree

Where Most Americans Agree

Housing costs too much, and it costs more than it did a decade ago in real terms
Young people and working families are being priced out of the places with the most opportunity
Homelessness is worse in the metros where housing is most expensive, and that is not a coincidence
Local government should not take years to approve a building that meets the rules
People should be able to live near where they work
Neighborhoods should have a voice in how they change — but a voice is not a veto

Source · Harvard Joint Center for Housing Studies, Pew Research Center, and state-level polling on land-use reform (2024–2026)

Both sides, fairly

How each side argues it.

Understanding the full debate means reading what each side actually says, not the caricature of it.

Progressive

Progressive Perspective

Exclusionary zoning has racist origins and continues to segregate American cities by income and race
Market-rate construction alone won't reach the lowest-income households; subsidized and public housing are also required
Tenant protections and anti-displacement measures have to accompany upzoning, or reform just accelerates gentrification
Corporate and institutional buyers distort local markets and should face limits
Housing is a human need, and treating it purely as an investment asset is the underlying error

Conservative

Conservative Perspective

Zoning is government regulation of private property, and it is among the most restrictive regulation most Americans encounter
Permitting delay and discretionary review are a hidden tax that gets passed to buyers and renters
Rent control reduces long-run supply and is not a substitute for building
Reform should happen at the state and local level, not through federal mandates
Property owners have legitimate interests in neighborhood character and should not be steamrolled

The evidence

Evidence-Based Facts

№ 01
Estimates of the U.S. housing shortfall range from roughly 1.5 million to 5.5 million units depending on methodology, with most credible estimates clustering in the 3–4 million range
Source · Harvard Joint Center for Housing Studies; Freddie Mac; Up for Growth
№ 02
In most large American cities, roughly 70–75% of residential land is zoned exclusively for detached single-family housing, making multi-unit construction illegal on the majority of buildable land
Source · New York Times / UrbanFootprint zoning analysis; Mercatus Center
№ 03
Oregon, California, Montana, Maine, Washington, and several other states have passed laws since 2019 preempting local single-family-only zoning — with bipartisan majorities in several cases, including Montana's 2023 reforms signed by a Republican governor
Source · National Conference of State Legislatures; Sightline Institute
№ 04
Regulatory costs — permitting, impact fees, code compliance, and delay — account for an estimated 24% of the final price of a new single-family home and roughly 40% of the cost of a multifamily development
Source · National Association of Home Builders regulatory cost studies
№ 05
Metro areas that permitted more housing per capita over the 2010s saw meaningfully slower rent growth than comparable metros that permitted less, controlling for job growth
Source · Federal Reserve Bank research; Journal of Urban Economics literature

Read deeper

Learn More from Reputable Sources

Honest questions

Questions for Thoughtful Debate

№ 01
Should states be able to override local zoning decisions, and if so, where is the limit?
№ 02
How much of the affordability problem can market-rate construction solve, and where does subsidy become necessary?
№ 03
What do existing homeowners legitimately deserve a say over, and what should they not be able to block?
№ 04
Is the right unit of decision-making the neighborhood, the city, the metro, or the state?
№ 05
If your own neighborhood were upzoned tomorrow, what would you actually want protected?