A buyer tours a model home in one of San Antonio's growth corridors, likes the floor plan, and gets a payment estimate from the builder's sales office. The number looks close to what a similarly priced resale down the road would cost. Weeks later, somewhere in the pile of paperwork that shows up during the option period, a notice appears with a title in bold capital letters: NOTICE TO PURCHASER OF SPECIAL TAXING OR ASSESSMENT DISTRICT. The buyer signs it along with everything else, because by that point signing is what you do. Nobody stops to run the math on what that district actually adds to the tax bill for as long as they own the house.
That's the pattern worth understanding before you're the one holding the pen. The disclosure law works exactly as written. The problem is timing, and it's specific to how new construction gets built and sold in San Antonio's Municipal Utility Districts and Public Improvement Districts.
Two Notices, One Purpose, Different Clocks
Texas requires two separate disclosures for homes inside these special districts, and they run on different legal tracks.
If the property sits in a Public Improvement District, Texas Property Code Section 5.014 requires the seller to give the buyer written notice before the contract is finally signed. TREC's promulgated form for this, TXR-1955, has to name the district and spell out the assessment. That requirement has applied to every San Antonio contract signed since September 1, 2021.
If the property sits in a Municipal Utility District, the notice comes from a different statute, the Texas Water Code, and it was rewritten by the legislature in 2023. Under House Bill 2815 and House Bill 2816, MUDs are now required to break out tax rate, bonded debt, and fees by category, separately listing what's owed for water, sewer, and drainage bonds. The revised notice has to carry the exact statutory heading:
NOTICE TO PURCHASER OF SPECIAL TAXING OR ASSESSMENT DISTRICT
That heading has to appear in at least 24-point bold type. The law wants it impossible to miss.
Here's where the timing gap opens up. The PID notice is supposed to arrive before you sign the purchase contract. In practice, the front-end work of confirming whether a lot sits in a PID falls to the agents and the seller, and on new construction that confirmation often doesn't happen until the title company starts working the file, well after the buyer has already committed emotionally and financially to the lot. If the notice shows up late but before closing, and the sale closes anyway, the buyer is presumed under the statute to have waived the right to terminate or recover damages. The paperwork is compliant. The buyer just never had a real decision point.
Where This Shows Up On The Ground
These aren't hypothetical districts. Bexar County's official tax rate directory lists them by name, and they cluster in exactly the corridors where San Antonio's new-construction volume is heaviest.
| Special District | Type | General Area |
|---|---|---|
| Cibolo Canyons | Special ID | North Central San Antonio |
| Westpointe | Special ID | Alamo Ranch / 1604 West corridor |
| San Antonio MUD #1 | MUD | Bexar County |
| Briggs Ranch | Special ID | Bexar County |
| Gates | Special Improvement District | Bexar County |
| Stolte Ranch | Public Improvement District | Bexar County |
| Clearwater Creek | Public Improvement District | Bexar County |
| Elmendorf | Public Improvement District | Bexar County |
Westpointe sits inside the same Alamo Ranch and 1604 West ring that builders treat as the volume engine of the entire metro, the corridor with the highest absorption of new spec homes on any given month. Cibolo Canyons is the master-planned community built around the JW Marriott San Antonio Hill Country Resort and its two PGA TOUR TPC golf courses, a name that shows up constantly in builder marketing for that part of North Central San Antonio. These are not obscure edge cases. They're the same subdivisions doing the heaviest new-construction business in the city right now.
The Math Nobody Runs At The Model Home
According to Bexar County's 2025 tax rate table, the most recent full year of published special district rates, Cibolo Canyons carries a special district rate of 0.558270 per $100 of assessed value. Westpointe carries the identical rate. San Antonio MUD #1 sits at 0.530000 per $100.
Run that against a real price point. Perry Homes has priced new construction in Cibolo Canyons starting around $350,000, and at that price the special district add-on comes to roughly $1,954 a year, about $163 a month, stacked on top of the base county, school district, and city rates that every San Antonio home pays regardless of subdivision. Apply the same math to a $300,000 home in San Antonio MUD #1 and the add-on comes to about $1,590 a year, roughly $132 a month, on the same basis.
That add-on is separate from the county rate, separate from the school district rate, and it's not offset by a homestead exemption the way school taxes are. It's also not something the builder's sales office payment estimate always isolates clearly, since builders tend to quote a blended monthly number that folds principal, interest, insurance, and an estimated tax escrow into one figure. A buyer comparing that blended number against a resale listing a few miles away, in a neighborhood built out before these districts existed, is comparing two numbers that aren't actually built the same way.
This lines up with the pattern local underwriters describe more generally: MUD and PID overlays typically add somewhere between 0.3 and 0.8 percentage points to the effective tax rate in a new district's early years. The Cibolo Canyons and Westpointe numbers sit right in the middle of that range. That's not a coincidence. It's how these districts are structured to work.
The Rate Doesn't Stay Where It Starts, But It Doesn't Disappear Either
Special district rates are set to repay bonds that financed the roads, drainage, parks, and entry features before a single house closed. As more homes get built and more owners start paying into the district, and as the original bonds get retired, the rate typically declines. That process usually plays out over twenty to thirty years. A newer section of a district will often carry a noticeably higher effective rate than an older, more built-out section of the same community, simply because fewer rooftops are splitting the same debt load.
That's useful context, but it cuts both ways. A buyer who assumes the rate will drop meaningfully within a five or seven year hold is often wrong. A meaningful portion of most district assessments goes toward ongoing maintenance and operations, not just debt service, and that piece doesn't retire on any schedule. The honest version of this is that the extra line item shrinks over decades, not years, and buyers should plan around the rate that's actually on the books today rather than the one they hope shows up later.
Three Questions Worth Asking Before You Sign Anything
- Is this specific lot inside a MUD, a PID, or both, and what is the district's current rate per $100 of assessed value? The subdivision name alone doesn't tell you. Districts can carve up a master-planned community into sections with different rates.
- What does the builder's quoted payment actually include for taxes? Ask whether the estimate reflects the base rate alone or the full combined rate including any special district.
- Has the seller or builder provided the statutory notice yet, and if not, when will it arrive relative to your contract deadline? If it hasn't shown up by the time you're signing, ask for it in writing before you do.
None of these questions require a lawyer. They require asking before the option period runs out, not after.
What This Means If You're Comparing New Construction To Resale
San Antonio's new-construction and resale inventory is competing directly against each other right now, especially in the $250,000 to $350,000 band, where spec homes built through 2025 along the I-35 corridor south of Loop 1604, in Converse, Schertz, and the far west side near Helotes, are still working through unsold inventory. A buyer weighing a new build in a district like Westpointe against a comparable resale in an older, non-district neighborhood isn't just comparing square footage and finishes. They're comparing two different long-term tax structures, one of which carries a fixed extra layer for years to come.
That doesn't make the new build a bad decision. It makes the sticker price an incomplete one. The honest comparison runs the full effective rate for both properties, not just the base rate either listing happens to display.
Frequently Asked Questions
Does a PID or MUD assessment qualify for the homestead exemption? No. The homestead exemption reduces school district taxes and can reduce some city or county taxes, but MUD and PID assessments are levied by independent taxing entities and generally fall outside that exemption.
Can a buyer walk away after signing if the PID notice arrives late? It depends on timing. If the notice is delivered after the contract is signed but before closing, and the buyer proceeds to closing anyway, the buyer is presumed under the statute to have waived the right to terminate or recover damages. The safer move is asking for the notice before signing rather than relying on the right to cancel afterward.
Is the district rate the same across an entire subdivision? Not always. A large master-planned community can be split into multiple sections or phases with different assessment rates, so the name of the community isn't enough. Confirm the rate for the specific section and lot.
If you're weighing a new build in one of these corridors against a resale a few miles away, running the real effective rate on both is the kind of homework that changes the comparison. Marti Realty Group works new-construction and model inventory across San Antonio's growth corridors every week and can pull the actual district rate for a specific lot before you sign anything. Get a free quote and see how much you can save.