Washington’s Housing Bill Runs Into the Zoning Wall

The strange thing about America’s housing crisis is that everyone now says the same magic word: supply. Congress says it. Builders say it. Tenant advocates increasingly say it. The new bipartisan housing package that cleared the House on June 23 by a 358-32 vote, after an 85-5 Senate vote the day before, is built around that consensus: lower regulatory costs, expand financing, speed federal reviews, support manufactured housing, and reward places that build more homes, according to Associated Press reporting on the final passage¹.

I think that consensus is real progress. I also think the bill is being asked to do something it cannot do. Washington can make building cheaper at the margin. It can reward cities that move faster. It can preserve affordable units that would otherwise age out or fall apart. But in the expensive markets where the crisis bites hardest, the binding constraint is often not federal paperwork. It is local permission.

Start with the plain English. Zoning is the local rulebook that says what can be built on a piece of land: a single-family house, duplex, apartment building, corner store, or nothing at all. Permitting is the approval process that turns a legal building into an actual construction site. Housing supply is the number and kind of homes available for people to rent or buy. The vacancy rate is the share of homes sitting available for occupancy; when it rises, landlords have to compete harder for tenants. And the Low-Income Housing Tax Credit, or LIHTC, is the main federal tax incentive used to finance privately built affordable rental housing, with developers receiving credits in exchange for keeping units rent-restricted for eligible households.

The bill’s strongest provisions are supply-side, not gimmicks. A Bipartisan Policy Center explainer² describes a Build Now Act tying some Community Development Block Grant money to local housing production, a change allowing CDBG funds to be used for new affordable housing construction, a HUD planning and implementation grant program, a $200 million annual Innovation Fund for localities that show measurable supply gains, grants for pre-reviewed designs such as accessory dwelling units, duplexes and townhouses, and FHA multifamily loan-limit changes. The same summary says the bill reauthorizes and reforms HOME, a federal affordable-housing block grant, and makes administrative changes to help housing production and housing-related infrastructure.

That sounds like a bill written by people who have finally discovered the bottlenecks. Good. A city that wants to allow fourplexes, reduce parking mandates, pre-approve small apartment designs, and staff up its inspections office will find federal money and federal flexibility more useful after this bill than before it. Developers will get help with financing. Local governments will get carrots for building. Some voucher holders may face less delay because the bill allows units financed through LIHTC, HOME, or USDA Rural Housing Service programs to satisfy Housing Choice Voucher inspection requirements if they recently passed another qualifying inspection, according to the same BPC summary².

But the bill’s weakness is sitting in the same paragraph as its promise. The Congressional Research Service summary of the earlier House package says the legislation leans on land-use guidelines, best practices, grants, CDBG reporting, environmental-review changes, FHA multifamily finance provisions, and program reforms, according to CRS³. Those tools can influence local policy. They do not repeal apartment bans, minimum lot sizes, discretionary review, parking mandates, or neighborhood litigation. If a wealthy suburb does not want apartments near a train station, this bill does not make the suburb legalize them.

That matters because the evidence for supply is strongest precisely where local rules allowed supply. Austin is the cleanest recent example. Pew found that Austin added 120,000 homes from 2015 to 2024 after policy changes encouraged more housing, especially rentals, and that rents in large apartment buildings in Austin and its metro area fell 7% from 2023 to 2024, the largest decline among U.S. metropolitan areas in Pew’s analysis; older Class C buildings saw an 11.4% decline, according to Pew’s Austin analysis⁴. Minneapolis tells a similar story at smaller scale: after reforms that made apartments easier to build near transit and commercial corridors and reduced parking requirements, the city increased its housing stock 12% from 2017 to 2022 while rents rose just 1%, compared with 14% in Minnesota outside Minneapolis, according to Pew’s Minneapolis report⁵.

The conventional read is that these examples prove Congress should subsidize supply. I read them differently. They prove that local legal capacity comes first. Federal money can accelerate the Austin path. It cannot conjure Austin-style outcomes in places that keep Austin-style building illegal.

The national rent data point the same way. RealPage reported that more than 40% of the top 150 apartment markets cut effective asking rents in the year ending February 2026, but the declines were concentrated in supply-heavy markets, with the South down 2.0% while the Northeast rose 2.0% and the Midwest rose 0.8%, according to RealPage Market Analytics⁶. Austin, Cape Coral, Tampa, Phoenix, San Antonio, Denver and other high-construction or recently overbuilt markets show what vacancy can do. The lesson is not mysterious: when enough units open at once, landlords lose pricing power.

The affordability crisis, though, has not gone away just because some boomtown rents cooled. Harvard’s Joint Center for Housing Studies reported that 22.7 million renter households were cost-burdened in 2024, meaning they spent more than 30% of income on rent and utilities, and that 12.1 million were severely burdened, spending more than half, according to America’s Rental Housing 2026⁷. Harvard also found that units renting for under $1,000 in inflation-adjusted terms fell by 7 million over the last decade, according to its 2026 housing takeaways⁸. That is why I do not dismiss production subsidies. The private market does not reliably build deeply affordable units without subsidy.

LIHTC proves both sides of the story. HUD’s database shows 54,102 LIHTC projects and 3.7 million housing units placed in service from 1987 through 2023, according to HUD USER⁹. That is not fake supply. It is a massive affordable-housing production and preservation system. But it is also not a cure for scarcity. After nearly four decades of LIHTC, renter burdens are at or near record highs, and the low-rent stock has shrunk. Research by Michael Eriksen and Stuart Rosenthal found that LIHTC development can crowd out unsubsidized rental construction in some geographic estimates, meaning gross subsidized units may overstate net additions, according to their Journal of Public Economics study¹⁰.

The cost environment makes that caution sharper. The National Association of Home Builders said in May 2026 that construction materials were up 46.1% since February 2020 and that the construction sector had more than 200,000 unfilled jobs, according to NAHB¹¹. If legal building sites, workers, contractors and materials are scarce, federal subsidies do not simply create homes; they also bid up scarce inputs. In a permissive market, that can still produce more units. In a locked-down market, it can raise the price of the few parcels already entitled for apartments.

So who benefits? Renters in fast-building metros may get real relief, especially if the bill’s grants and financing land in jurisdictions that already have reform momentum. First-time buyers will get less immediate help, because small-dollar mortgage reforms and manufactured-housing support do not change the fact that high rates, high prices and low starter-home supply still dominate the ownership market. Developers gain from cheaper financing, clearer federal reviews and local grants. Landlords in high-vacancy markets face more pressure; landlords in locked-up markets may keep enjoying scarcity. Local governments that want to build get a federal partner. Local governments that do not want to build get a talking point and a framework.

The best counterargument is that federal policy does not need to force every exclusionary suburb to change. It only needs to shift the payoff for the jurisdictions on the margin: the city council that might legalize duplexes, the county that might pre-approve townhouses, the transit suburb that might allow apartments if infrastructure money comes with it. I buy that as far as it goes. The bill can create more affordable homes than would otherwise be built, and it will probably improve preservation and production in reform-minded places.

But the core question is whether it will meaningfully expand affordable supply in the markets where costs are most burdensome. My answer is: not by itself, and probably not enough. The bill subsidizes motion. It does not guarantee capacity. In housing, capacity means legal lots, fast permits, predictable approvals, available labor, and financing that survives the math. Washington has addressed some of that chain, but local zoning still holds the choke point.

The indicator to watch is not the national unit total politicians will tout in 2028. Watch the 25 highest-cost, low-vacancy metros: San Francisco, San Jose, Los Angeles, New York, Boston, Seattle, Washington, and their suburbs. If by 2029 bill-funded jurisdictions in those places show faster permitting, multifamily zoning reforms, rising affordable completions, and vacancy gains versus similar jurisdictions that did not get awards, I will revise my view. If the money mostly flows to Austin-like places already willing to build, the verdict will be clear: Congress did not build its way out of scarcity. It paid the builders who were already closest to the door.