Texas Senate Bill 840 passed quietly in 2025. No ribbon-cutting. But it's now reshaping what gets built in DFW neighborhoods, and which zips are changing fastest.
If you're researching a move to the Metroplex, this is the policy you need to understand before you pick a zip code.
What SB 840 actually does
Effective September 1, 2025, SB 840 requires larger Texas municipalities to allow multifamily and mixed-use development inside commercial zones as a matter of right. No special-use permit, no rezoning fight. A developer who wants to convert an underused office corridor into apartments can, in theory, just build.
In practice, it's messier. Several DFW cities moved fast to limit the bill's reach before it took effect. Arlington, Plano, Irving, and Frisco passed local ordinances reimposing height limits, mandating expensive amenity packages, or reclassifying commercial corridors as heavy industrial. According to The Real Deal (July 2026), even where SB 840 technically permits projects, city officials can slow things through bureaucratic friction. Developers who want long-term city relationships often don't invoke the law at all.
Which DFW zips are actually changing
The infill activity concentrates where commercial vacancy is highest and city resistance is lowest:
- Dallas proper (75206, 75207, 75219): Dallas has taken a cooperative posture. The Design District (75207) and Oak Lawn (75219) have underused office and warehouse stock actively converting to apartments. Alpine Start, a Dallas multifamily firm, described the process as requiring "more explaining" but with no meaningful schedule impact.
- Fort Worth (76102, 76104, 76107): The Near Southside and Cultural District corridors are SB 840-eligible and attracting developer interest. Fort Worth hasn't passed aggressive defensive ordinances, so projects here are moving.
- Garland and Mesquite (75040, 75149): Lower land basis, lower city resistance. Not glamour markets, but infill projects may actually get built here faster than in higher-profile suburbs.
- Suburban hold-outs: Frisco (75033–75035), Plano (75024, 75093), and Allen (75013) all moved to limit SB 840's reach. These zips will see less infill multifamily and more predictable market conditions near-term.
The Fort Worth stabilization signal
Fort Worth has been a softer market in DFW, but the most recent data shows price declines narrowing. That's a stabilization signal in Texas, per the Texas Real Estate Research Center's June 2026 Housing Insight.
Fort Worth's median price is $338K (Redfin, March 2026), down 0.74% year-over-year. Sellers are still adjusting prices, but the window where declines are still deepening looks like it's closing. New multifamily activity along the Near Southside is generating foot traffic and retail attention that tends to precede single-family recovery in adjacent blocks.
What this means for your search
SB 840-driven densification isn't good or bad by itself. It depends on your Life List.
If you want walkable errands, new dining, and neighborhood energy, infill is usually a net positive. Zips like 75207, 76104, and 75219 are adding density alongside the amenities density attracts.
If you want quieter areas, the suburban hold-outs (Frisco, Prosper, McKinney) may offer slower evolution. Less SB 840 activity, slower change.
Check the LBYM Score for Dallas and Fort Worth now to establish a baseline across Everyday Errands, Commute, Affordability, and more. As infill delivers over the next 2-3 years, those scores will shift.
Frequently asked questions
What is SB 840 and why does it matter for buyers?
Texas SB 840 (effective September 1, 2025) lets developers build multifamily housing in commercial zones without a special permit. For buyers, this means neighborhoods with office or retail corridors may see new apartments over the next few years, which can affect neighborhood character, amenity access, and long-term pricing.
Which DFW cities are most open to SB 840 development?
Dallas has been relatively cooperative. Fort Worth, Garland, and Mesquite are also seeing activity. Frisco, Plano, and Allen passed defensive ordinances limiting SB 840's reach, so those suburbs will see less infill near-term.
Is Fort Worth a good market to buy in right now?
Price declines are narrowing, a stabilization signal in Texas per the Texas Real Estate Research Center (June 2026). Buyers still have negotiating leverage, but the deepest discount window appears to be closing. Use the Fort Worth page on LBYM to evaluate specific neighborhoods by the factors that matter to your daily routine.
The bottom line
SB 840's impact is zip-code-specific. Dallas and Fort Worth are seeing the most infill activity. Suburban hold-outs like Frisco and Plano are changing the least. Fort Worth's price stabilization makes it an interesting buyer setup in DFW right now for anyone who's done the homework.
Know what's being built near your target zip, and whether it fits how you want to live.
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