The Loophole War Over Senate Bill 840, Texas's By-Right Housing Law

In Grand Prairie, the price of admission for a by-right apartment building now includes an outdoor swimming pool sized like a competition venue.

The city adopted a new "Appendix S — Development Standards for Multi-Family and Mixed-Use Residential" in October 2025, and it applies only to projects that qualify under Texas Senate Bill 840. Along with the pool, Appendix S sets a unit-mix mandate weighted heavily toward three-bedroom units, a landscaping minimum, and a public-art requirement.

The bill's own author, State Sen. Bryan Hughes, went after it in the press: "When cities impose outlandish requirements like Olympic-sized pools or dog spas before housing can be built, they drive up costs and put homeownership even further out of reach for Texas families."

Arlington was less theatrical and more effective. Ahead of SB 840's September 1, 2025 effective date, the city set a six-story minimum height for multifamily and mixed-use buildings on its commercial corridors. It also required 15% of parking spaces to include EV charging.

Garden apartments top out around four stories before they need steel or concrete. A six-story floor quietly reprices most by-right projects out of feasibility before anyone submits a plan.

Council Member Bowie Hogg named the tension directly: "Austin complains about DC taking away their control and now our legislature did the exact same thing and took away local control from Arlington."

Dallas did the opposite. It wrote no new ordinance at all. It published an information sheet, built an advance zoning consultation process, and let the state law preempt where local rules conflicted.

The clearest proof that the posture matters came from a lawsuit that stopped mattering.

Far North Dallas neighbors had spent years fighting to block an 868-unit redevelopment they called illegal spot zoning. In August 2025, with SB 840 about to make that density legal by right no matter how the case came out, they dropped the suit.

Three cities, one statute, three outcomes. That's the whole story of SB 840 ten months in.

The law is a constant. The city's willingness to honor it is the variable, and it's the variable that decides whether a "by-right" parcel is actually buildable.

The developer's first diligence question is no longer whether a site is zoned for the project. It's which of these two kinds of city the site sits in.

What SB 840 actually grants

The grant is broad, and it was designed to be. SB 840 makes multifamily housing of three or more units permitted by right in zones set aside for office, commercial, retail, warehouse, and mixed-use. Mixed-use projects qualify too, if they're at least 65 percent residential by floor area.

By right means no rezoning, no variance, no public hearing. It sets a density floor at the greater of whatever the city already allows or 36 units per acre, and a height floor at the greater of what those commercial uses already allow or 45 feet.

It caps required parking at one space per unit and bars cities from requiring structured parking. It took effect September 1, 2025.

It doesn't apply everywhere. The statute reaches cities over 150,000 people in counties over 300,000, well over a dozen of them, concentrated in the Dallas-Fort Worth, Austin, and Houston metros.

Inside those cities, the base-district question that used to govern a deal is settled by the state. A strip-mall parcel zoned for retail can take apartments without asking permission.

That's the grant everyone reported in mid-2025. What almost no one laid out, ordinance language beside dates, is the counter-move: the specific local mechanics cities are using to blunt the grant without openly defying it.

A state preemption statute is only as strong as the weakest municipal willingness to honor it. That willingness is now a site-specific fact you have to look up.

The friction taxonomy

The cities pushing back share a constraint: they can't ban by-right multifamily. McKinney planning manager Hayley Angel named the bind plainly: SB 840 "preempts our ability to say in our nonresidential zoning districts that multifamily or mixed-use is not allowed."

So they've made it expensive in ways the statute doesn't reach. The tools fall into a handful of recognizable moves.

The first is the height minimum. Arlington's six stories is the cleanest example, but Irving went further.

Its August 2025 amendments require every multifamily or mixed-use building triggered by SB 840 to reach at least 85 feet and eight stories, rising to 120 feet in some overlay districts.

Irving also wrote a unit-size rulebook: efficiencies at 500 square feet, one-bedrooms at 650, two-bedrooms at 900, three-bedrooms at 1,100. On top of that sit bedroom-mix caps, a mandatory amenity checklist running to a pool, dog park, gym, remote-work space and clubhouse, half the parking covered, and green-building standards.

A height minimum works as friction because SB 840 set a height floor to guarantee developers could build up. Cities inverted it into a mandate to build up, which forces the exact structural systems that kill infill economics.

The second is the amenity and unit-mix load. Grand Prairie's Appendix S is the vivid case, but the pattern is everywhere in the resisting cities: swimming pools, shaded play areas, dog parks, three-bedroom quotas, landscaping minimums, public art.

None of it is illegal. All of it adds cost that a by-right conversion of a commercial parcel was never underwritten to carry.

The third is the ground-floor retail mandate, which forces a residential-only project to build and finance commercial space it doesn't want, on the theory that "mixed-use" ought to mean mixed.

The fourth is the cleverest, and it belongs to Frisco. The city created a new zoning use called "heavy industrial," defined with the same language SB 840 uses to exempt land within 1,000 feet of heavy industry. Then it made that use available by special-use permit across its commercial districts.

SB 840 carved out an exemption for parcels near real industrial activity. Frisco turned the mere zoning possibility of a future industrial permit next door into an argument that adjacent commercial parcels fall outside the law's reach.

The Texas Tribune reported that Frisco was among the cities that "rezoned commercial areas as heavy industrial in order to exploit an exception in the bill."

The lawyers watching this were blunt about the intent. Dallas land-use attorney Misty Ventura said the cities were "looking for ways to avoid compliance with state law... They're not being coy about it. They say, 'We're doing this in response to changes in state law, and we need to get it in place before Sept. 1.'"

The dates bear her out. Arlington, Frisco, and Irving all moved before the law took effect.

The other posture

Dallas had more reason than most to armor up. Its code carries roughly 2,000 planned-development districts, each a bespoke set of rules. It chose not to.

Instead the city published an SB 840 information sheet dated August 29, 2025 and stood up an advance zoning consultation process. A developer can get written confirmation of how the law applies to a specific parcel before submitting.

Andrea Gilles, deputy director of Dallas Planning and Development, framed the law as help rather than intrusion: it "allows us to be able to respond more quickly to areas where we said through our citywide visioning sessions that this is where we should put more housing."

Even the elected officials who resent the preemption read it as a self-inflicted wound. Council Member Chad West put the blame close to home: "The onerous zoning dockets in large cities like Dallas coupled with the lack of will by many elected officials to support density... led the state to this heavy-handed action."

That's a rare thing in a preemption fight, a city treating the state law as a correction rather than an insult.

Fort Worth landed in between. It passed a resolution affirming compliance and offers an informal pre-development conference.

But there's no written confirmation of the kind Dallas provides, and its formal code amendments were still in drafting well into 2026. The middle path is real, but it leaves more uncertainty than Dallas's.

Capital has started to sort itself along these lines. Developers describe writing off the friction cities and steering deals toward the ones that let the law work.

Even in cooperative cities, the seasoned players warn that "by right" doesn't mean "without friction." Wildcat Management founder Tanya Ragan noted that a project can be legal and still get slow-walked: "Just because something can be done legally doesn't mean that things can't be stalled in the background with all the bureaucracy."

Asked whether cities do exactly that, her answer was a thousand percent yes.

Austin's different flavor

Austin qualifies under SB 840, but it hasn't reached for the DFW playbook. There's no six-story minimum, no competition-scale pool mandate, no heavy-industrial gambit on the books.

Austin's problem with the law runs in a different direction: it erodes the bargaining power the city used to extract public benefits.

Austin's density-bonus programs work by trade. A developer who wants extra height or floor area negotiates for it, and the price is income-restricted units or a fee paid in lieu.

SB 840 lets qualifying projects take height and FAR by right, which means there's nothing left to negotiate for. Planning Director Lauren Middleton-Pratt warned that the law "will significantly impact the viability of many of the city's density bonus programs."

When density stops being a thing the city grants, the city stops being able to charge for it.

Council moved early, starting code amendments with Resolution 20250605-080 in June 2025. The debate has centered on downtown.

In October 2025 the Downtown Commission weighed a proposed 350-foot base height cap for the central business district and recommended against hard height limits, favoring a revenue-sharing model to fund housing.

The through-line is the same as everywhere else: SB 840 didn't just change what gets built, it changed what a city can ask for in exchange.

The fights that haven't happened yet

Despite loud predictions, no enforcement lawsuit under SB 840 has been confirmed filed against a friction city. For all the public heat around the friction ordinances, the fight has stayed out of court.

The one high-profile piece of litigation tied to SB 840 ran the other way: the Pepper Square case wasn't a suit under the law, it was a NIMBY suit the law made pointless.

The next real pressure point is vested rights, not the friction ordinances themselves. Texas Local Government Code § 245.002 lets a project lock in the rules in effect when its first permit application lands.

That raises an unsettled question about which regime governs a given SB 840 filing: the state grant, the local overlay adopted just before it, or some contested combination. That's where the coming permitting cycles will get argued.

Until then, the map is what it is: some cities let the law work, some cities don't, and the difference is written in city halls, not in the statute.

Which kind of city

SB 840 didn't settle whether you can build. It moved the question.

The old question lived on the zoning map: is this parcel zoned for what I want. That one the state answered.

The new question lives on the city council's posture toward the state's answer, and it's a harder question because it's unwritten in the base district and it changes.

A by-right parcel in Grand Prairie, carrying a competition-scale pool and a three-bedroom quota, can be less buildable than a negotiated parcel in Dallas. A six-story minimum in Arlington can do more to kill a deal than an outright prohibition would, because the prohibition is illegal and the minimum isn't.

The site plan, the pro forma, and the structural system all bend around the local overlay, not the state grant.

So put municipal posture toward SB 840 on the pre-acquisition checklist, right beside overlays, watershed, and recorded restrictions. Answer it before the letter of intent, not after.

Because in Texas today, a by-right parcel in the wrong city is worth less than a negotiated one in the right city. The statute tells you what you can build. Only the city hall tells you whether you'll actually get to.