What We Are Reading

Ground Truth

The industry trends and needs driving ZoneLex. Zoning and land-use law is changing fast, state by state, bill by bill. This is where we track what’s happening and why it matters.

Overlapping historical zoning and parcel maps spread across a table

Ground Truth

What we’re reading.

The outside research and industry news shaping how we think about zoning friction, regulatory cost and machine-readable land-use law, with our take on what it means.

Regulatory & Legislative WatchZoneLex · August 2026

Industry News: 511 Bills and the Quiet Rewrite of Who Controls American Land Use

In 2025, 511 bills containing clauses that preempt county land use authority were introduced across 40 states, and roughly three out of four sought to override or substantially constrain that authority. With Trent’s take on what the churn means for anyone who has to practice under these codes.

Banner illustration reading 511 bills, 40 states, one question: who decides, with a map of the United States splitting apart between a state capitol and a county courthouse
511 preemption bills across 40 states in one year. The question underneath all of them is the same.
Read moreRead less

The news

There is a massive shift in zoning law occurring across the U.S. to address housing supply and affordability, and the numbers behind it are striking.

According to the National Association of Counties, 511 bills containing clauses that preempt county land use authority were introduced across 40 states in 2025. Roughly three out of four of those measures sought to significantly alter county authority over land use by overriding it or substantially constraining it.

Some context on why that matters: in 41 states, counties hold some measure of land use authority, determining what can be built and where, including regulations around zoning, subdivisions, development, permitting, and processing. Since the 2010s, however, states have increasingly passed laws preempting how counties set those rules, shifting decision-making power away from local governments and local residents.

The driver is the housing shortage, though nobody agrees on its size. Private analyses like Zillow place the cumulative deficit at 4.7 million units. Traditional industry groups cite 2 to 3.7 million. A White House economic report estimates a broader gap of 10 million homes.

Counties are pushing back on the premise that they are the problem, pointing to the $17.7 billion they invest annually in the construction, operation, and support of housing and redevelopment projects. Many counties share the goal of increasing supply. What they object to is the removal of local authority to decide how.

Trent’s take

Here is what I keep coming back to: 511 bills is not a trend. It is a rewrite.

We may be watching the largest transfer of land use authority in modern American history, and it is happening one statehouse at a time, one preemption clause at a time, with almost nobody outside this industry paying attention. Florida’s HB 399 and SB 180 are one flavor of it. The Build Now provisions tying CDBG dollars to housing production are another. Add 40 states’ worth of preemption bills on top and you get the picture.

And look, I understand both sides of this one. The states are not wrong that the current system has stalled. When roughly a quarter of every development dollar is absorbed by regulatory cost and friction, not land, not labor, not lumber, something in the machine is broken. But the counties are not wrong either. They are the ones sitting in the hearing rooms. They know which intersection floods and which street cannot take another 400 cars a day. Local knowledge is real, and $17.7 billion a year in county housing investment is not nothing.

Here is the part I can speak to with confidence, though, regardless of which side wins: the churn itself.

Every one of these bills, whether it passes, fails, or gets challenged, changes what the law is somewhere. Codes are being amended, overridden, voided, and phased in on different timelines in different states, sometimes retroactively. For the people who have to practice under these codes, the hard question is no longer just “what does the law say?” It is “what did the law say, on this date, for this parcel, and which version actually controls?”

That question was hard enough when zoning law changed slowly. It is about to be asked ten thousand times a day.

So I will leave you with the questions I genuinely wrestle with. Given the economic stagnation of housing development, who should be in charge? Is our democratization of zoning law paralyzing progress? Should states take control? Or should this remain with local city and county government?

I would love to hear where you land.

Sources:

State Policy: Land Use, National Association of Counties →

America’s Housing Deficit Held Steady at 4.7 Million Units, Zillow →

The U.S. Is Short 10 Million Houses: A New White House Report, PBS News →

Housing PolicyHarvard Joint Center for Housing Studies · June 2026

Harvard’s 2026 Housing Report Confirms It: The Next Housing Fight Is Happening in the Zoning Code

The Joint Center for Housing Studies’ annual report shows a market stuck at three-decade lows, and its most actionable takeaway isn’t about interest rates. It’s about regulation. Here’s why that matters for everyone who touches zoning law.

Aerial view of an established single-family suburban neighborhood
What local rules allow, and how quickly they allow it, shows up directly in supply.
Read moreRead less

Every June, Harvard’s Joint Center for Housing Studies releases the closest thing the housing world has to a physical exam. The 2026 State of the Nation’s Housing report is out, and the diagnosis is blunt: existing home sales are still sitting near 30-year lows, household growth has declined for a third straight year, and the monthly payment on a median-priced home has climbed to roughly $3,100, up from $1,700 in early 2020. A household now needs an income over $120,000 to afford the median home. In 2020, that number was $66,000.

There’s a lot in the report about demand, consumer confidence, and cost burdens. But if you work in land use, development, or municipal law, the section worth reading twice is the last one.

The report’s clearest signal: supply follows regulation

Takeaway six in the JCHS companion analysis is a natural experiment hiding in plain sight. In Austin, where construction has been aggressive, apartment vacancy is up five percentage points since 2021 and for-sale listings nearly tripled. In Chicago, where construction has been constrained, vacancy barely moved and listings actually fell 20 percent. Same country, same interest rates, same economy. The variable is what local rules allow you to build, and how fast you can get it approved.

Then comes takeaway ten: states are responding by rewriting the rules. In 2025 alone, Arkansas and Iowa legalized ADUs in single-family zones. Kentucky opened single-family zones to new manufactured homes. Florida, New Hampshire, and Texas allowed multifamily housing in commercial zones. Tennessee established objective approval criteria. Colorado, New Hampshire, and Montana permitted single-stair midrise buildings.

Our POV: reform doesn’t simplify zoning. It complicates it.

Here’s what the report doesn’t say out loud, and what we think about every day at ZoneLex. Each of those reforms is a win for supply, and each one adds a new layer of law on top of decades of existing code. A state statute legalizing ADUs doesn’t erase the local ordinance it overrides. It creates a conflict that someone has to interpret: a planner, a developer’s counsel, a city attorney, a homeowner. Multiply that across hundreds of jurisdictions moving at different speeds, and you get a regulatory landscape that changes faster than any human team can track it.

That’s the gap we’re building for. The housing shortage is increasingly a zoning interpretation problem. The bottleneck isn’t just what the law allows. It’s how long it takes to figure out what the law allows, parcel by parcel, jurisdiction by jurisdiction, amendment by amendment.

Why it matters for the industry

The JCHS report makes the case that supply-side reform is where the momentum is, at the state level, the local level, and increasingly the federal level with instruments like the expanded Low-Income Housing Tax Credit. That momentum means more code changes, more preemption questions, and more demand for fast, defensible answers about what can be built where. The organizations that can answer those questions in hours instead of weeks will move first on every reform wave that comes.

The market is subdued. The regulatory layer is not. That’s exactly where zoning intelligence earns its keep.

Sources:

The State of the Nation’s Housing 2026, Harvard JCHS →

Ten Takeaways from the 2026 State of the Nation’s Housing, Daniel McCue, JCHS →

Housing PolicyNAHB Special Study · June 2026

How Much Does Regulation Add to the Cost of a New Home? The 2026 NAHB Study, Explained

Every few years, the National Association of Home Builders puts a number on something the industry has felt for a long time: regulation isn’t a footnote in the cost of housing, it’s one of the largest line items on the balance sheet.

A newly built single-family home nearing completion on a cleared lot
Regulatory cost is baked into a new home long before the first buyer sees it.
Read moreRead less

At ZoneLex, the newly updated 2026 study doesn’t surprise us. It confirms exactly the problem we built our platform to solve. Here’s what the data says, and what it means for developers, builders, and land-use teams.

How much does government regulation add to the price of a new home in 2026?

$131,734 per new single-family home, or 26.4% of the current national average sales price of $499,500. That’s the headline finding of NAHB’s 2026 study, Government Regulation in the Price of a New Home. Roughly a quarter of what a buyer pays for a new home is regulatory cost, before a single design choice, upgrade, or market factor enters the picture.

How fast are regulatory costs rising?

Faster than at any point NAHB has measured. The $131,734 figure has doubled since 2011 and jumped 40% in just the last five years, the sharpest increase between any two survey periods NAHB has recorded. For context, regulatory costs are now rising more than twice as fast as disposable income, which grew just 18.3% over the same period.

Where do regulatory costs come from in home building?

The study breaks the $131,734 into two buckets:

Land development ($46,795): Costs baked in before a foundation is even poured, during land acquisition and lot development: zoning applications, impact studies, land dedication requirements, and design standards that go beyond ordinary code.

Construction ($84,939): Costs that accumulate during the build itself, driven heavily by building code changes, permitting fees, and architectural standards layered on top of baseline requirements.

How common are regulatory costs and delays for developers?

Universal. Every developer and every builder surveyed reported experiencing at least one form of regulatory cost. Zero exceptions. And 94.2% of developers said regulatory compliance directly delayed their projects, by an average of roughly seven months. Builders felt it too: 93.4% reported construction-phase delays averaging just over six weeks.

Why do regulatory delays cost more than the fees themselves?

Because delay isn’t a soft cost. Seven months of regulatory holdup during land development means seven months of carrying cost, interest expense, and lost market timing, all compounding on top of the fees themselves. The invoice a developer can see is only part of what regulation actually costs a project.

What does regulation have to do with the housing shortage?

NAHB estimates the country is short roughly 1.2 million homes relative to what’s needed to balance the market. Rising material costs and credit conditions get a lot of attention in that conversation, but this study is a reminder that regulatory friction (zoning approval timelines, overlapping local requirements, and compliance uncertainty) is one of the most persistent and least visible headwinds to closing that gap.

Where does zoning fit into the regulatory cost picture?

Right at the front. Zoning approval is the very first interaction a developer has with local government. It already averages $7,007 per home in application costs alone, and it’s a common source of the delays this study documents. When that process is opaque, manual, or inconsistent from one jurisdiction to the next, the cost isn’t just measured in fees; it’s measured in months. That’s the exact friction ZoneLex was built to remove.

Is the NAHB study an argument against regulation?

No, and NAHB says so explicitly. Safety standards, environmental review, and community design requirements exist for real reasons. We don’t read this study as an argument against regulation itself. But when compliance costs are this large, this universal, and this poorly visible in advance, there’s an enormous opportunity to bring clarity and speed to the process without asking anyone to cut corners.

What should developers and builders take away from this?

That’s the work in front of us. If a $131,734 regulatory footprint is now the baseline for every new home in America, the winners in this next cycle won’t be the builders who avoid regulation. They’ll be the ones who navigate it fastest.

Source: National Association of Home Builders, Government Regulation in the Price of a New Home: 2026 (June 2026).

Read the full NAHB study →

Industry posts

Third-party research and reporting we are tracking, each with the ZoneLex point of view on it.

Housing PolicyNAHB Special Study · June 2026

What does government regulation add to the price of a new home?

Regulation now accounts for 26.4% of the price of the average new single-family home built for sale, or $131,734 on the $499,500 January 2026 average, according to NAHB’s updated June 2026 special study.

Read moreRead less

Roughly $46,795 of that is baked in before a foundation is poured, during land acquisition and lot development: zoning applications, required studies, land dedications, and design standards that go beyond ordinary code. The remaining $84,939 accumulates during construction, and close to 95% of developers reported compliance delays.

At ZoneLex, this data does not surprise us. It confirms the problem we built the platform to solve. Zoning approval alone, the very first interaction a developer has with local government, runs about $7,007 per home and is a routine source of delay. When that process is opaque, manual, and inconsistent from one jurisdiction to the next, the cost is not just measured in fees. It is measured in months.

Read the NAHB special study →

Market TrendsNAHB Eye on Housing · June 2026

Why did home building regulatory cost burdens rise 40% in five years?

Because the cost stack grew faster between the 2021 and 2026 surveys than between any consecutive pair NAHB has measured, climbing from $93,871 to $131,734, and more than doubling the 2011 estimate of $65,224.

Read moreRead less

NAHB is careful about method here. The lot-development figure comes from its March 2026 Land Developer Survey, the construction figure from the March 2026 NAHB/Wells Fargo Housing Market Index, converted to dollars using Census new home price data. NAHB places regulation alongside four other supply constraints: material tariffs, the skilled labor shortage, a shortage of finished lots, and tighter lending.

Our take is simple. Of those five constraints, regulatory friction is the one a software layer can compress directly. You cannot code your way out of a labor shortage. You can make the rules legible before capital is committed.

Read the Eye on Housing analysis →

Regulatory & Legislative WatchBellagio Real Estate, John McManus · June 2026

How much of the 26.4% cost stack does the ROAD Act actually reach?

Stylized U.S. map with federal dollar flows pushing into municipalities and ripples labeled rezoning wave 2026 to 2029
Federal dollars are about to push a rezoning wave through hundreds of municipalities between 2026 and 2029. That churn is exactly why an always-current, parcel-anchored record matters.

Mostly the parts Washington already controls, which is a minority of the stack.

Read moreRead less

McManus makes the point builders feel every day. The single largest line item is not zoning approval or impact fees, it is a decade of building code change at $40,288 per home, and code is administered locally. Federal leverage is real where federal authority is real: NEPA categorical exclusions for infill and rehabilitation, manufactured housing standards, and FHA financing terms.

On zoning, the tools are incentives rather than mandates. CDBG dollars get redirected toward jurisdictions that hit housing production thresholds, phased in over three years. A $200 million annual competitive fund rewards density bonuses, streamlined permitting, and by-right multifamily. Grants fund pre-reviewed pattern books that let ADUs, duplexes, and townhouses skip design review. HUD is directed to set guidelines for single-stair point-access buildings and to publish a zoning best-practices framework.

Our read: every one of those mechanisms is a measurement problem before it is a policy problem. If federal money moves on housing performance, someone has to prove what a jurisdiction’s code actually permits, ordinance by ordinance, with a citation. The phase-in also guarantees a multi-year wave of local text amendments, and each amendment is a version of the code that someone will later need to reconstruct.

Read the ROAD Act cost-stack analysis →

AI & Legal ResearchBrookings, Haggerty and Bolaria Shifrin · March 2026

Why AI fails when it comes to zoning law

A zoning ordinance shown as tracked changes across 1974, 2009 and 2026, with insertions and strikethroughs
The life cycle of a single ordinance. Zoning law is a redline, not a snapshot, and a model trained on one snapshot cannot tell you which version governs today.

Because the records underneath were never built to be read by machines, and Brookings argues housing needs shared data infrastructure before AI can deliver on the promise.

Read moreRead less

Governments usually published laws as PDFs or Word documents. To a computer, a PDF is just a picture of text. The computer doesn’t know the difference between a title, a penalty, a date, or a judge’s final ruling. Furthermore, laws are rarely written once and left alone; they are constantly amended, updated, or repealed. Trying to track how a specific paragraph of a law has changed over 50 years across hundreds of different documents is incredibly difficult and manual.

In short, when laws are buried in disorganized, incompatible formats, it’s very hard for regular citizens, journalists, and most of all, lawyers to search for and understand the rules that govern them. AI is no different.

ZoneLex is solving this exact problem. We are doing the highly unglamorous job of data engineering across the landscape of U.S. Zoning law by tagging every single piece of legal text so that our system knows exactly what it is looking at and most of all, what our clients are looking for. For example, ZoneLex knows that “This sentence is an amendment,” or “This date is when the ordinance goes into effect.”

This allows our data-as-a-service architecture to easily track the “life cycle” of the law. Enabling our clients to see exactly how a law looked years ago versus today, much like the “Track Changes” feature in Microsoft Word but scaled up for the entirety of the United States’ zoning law infrastructure that we are building.

By standardizing the format of the entirety U.S. Zoning law, we are building a highly searchable and machine-readable data set, making what has seemed impossible, possible.

Read the Brookings commentary →