Why did the escrow analysis on your new build come back higher than the number the builder's sales office quoted you in March? If you bought new construction anywhere in San Antonio's growth corridors this year, there's a real chance you're about to ask that question, or you already have. The honest answer is that two separate things are shifting under your feet at the same time, and almost nobody explains both of them before you sign.
The first is whether your specific address sits inside a special taxing district. The second is that the base layer everyone assumes is fixed, the City of San Antonio's own tax rate, is not fixed this year. Both facts change what shows up on your bill, and both are harder to pin down before closing than the disclosure paperwork implies.
The Assumption That Doesn't Hold Up
Most buyers treat the absence of a disclosure as proof of absence. If nobody hands you a notice about a special district, you assume there isn't one. That assumption works fine for a resale home that's been on the tax rolls for a decade. It works less well for new construction in a subdivision that broke ground eighteen months ago.
Two kinds of districts can attach to a San Antonio property outside the standard city, county, and school levies. A Municipal Utility District funds water, sewer, and drainage infrastructure and bills you through an ad valorem tax that rides on your assessed value. A Public Improvement District funds roads, landscaping, lighting, or other shared improvements and typically charges a fixed or formula-based assessment per lot rather than a percentage of value.
| MUD | PID | |
|---|---|---|
| Funds | Water, sewer, drainage | Roads, lighting, landscaping, common areas |
| Billed as | Percentage of assessed value | Fixed or formula-based lot assessment |
| Disclosure statute | Texas Water Code §49.452 | Texas Property Code §5.014 |
| Where it comes from | Bond debt for utility construction | Bond debt or pay-as-you-go for shared improvements |
Both are legal, both are common in fast-growing Texas metros, and both are supposed to be disclosed before you're locked into a contract. The gap is in the mechanics of how that disclosure actually gets assembled.
What the Statute Promises, and Where the Promise Runs Out
Texas Property Code §5.014 requires a seller to give a buyer written notice before a binding contract if the property sits in a PID, naming the district and the municipality or county that levies the assessment. If that notice never arrives, the buyer can terminate the contract, even after signing. If it does arrive, but not until closing, and the buyer closes anyway, the right to terminate is presumed waived. You can read the statute's language directly through the Texas Legislature's own site.
The mechanism that's supposed to catch this for agents and title companies runs through the MLS. The local system pulls its Taxing Jurisdiction data from county appraisal district records, and the Texas REALTORS association has walked members through exactly this workflow: check the MLS first, then the appraisal district, then the city or county website.
The problem is timing. A brand-new district can exist on paper, approved by a city council or commissioners court, months before it shows up in appraisal district records. For a resale home in an established subdivision, that lag doesn't matter because the district has been indexed for years. For a spec home that closed its first sale six months ago, the lag is the whole game. The seller's disclosure can be entirely accurate and still miss a district that's real but not yet reflected anywhere a title search would normally catch it.
How This Actually Plays Out: Cibolo Canyons
You don't have to take this on faith. Bexar County's own records show how one of San Antonio's larger master-planned communities got its special district. The developer behind the roughly 2,100-acre Cibolo Canyons community, on the city's north side near TPC Parkway, negotiated a non-annexation agreement with the City of San Antonio and worked with the Bexar County Commissioners Court to create a special improvement district to fund the development's public improvements. Bexar County still lists the Cibolo Canyons Special Improvement District as an active entity under Precinct 3.
That's not a warning about one specific community. It's a demonstration of the process. When a developer and a local government negotiate a district as part of getting a large project approved, the district exists from the moment that agreement is signed, not from the moment a home closes escrow inside it. The paperwork trail for the district and the paperwork trail for your individual purchase run on different clocks.
Four Checks Before You Write the Offer
- Ask the builder's sales office directly whether the lot sits inside a MUD or PID, and ask for the district's service and assessment plan, not just a verbal answer.
- Search the county's special district pages by community name rather than relying only on the MLS taxing jurisdiction field, since new districts can lag in appraisal district data.
- Request the actual §5.014 notice in writing before you sign anything, not as a form you're handed to initial at the closing table.
- If you're buying resale in a growth corridor built within the last five years, ask the current owner for their most recent full tax bill so you can see every line, not just the headline county estimate.
The Base Layer Just Started Moving Too
Here's the part that makes 2026 different from a normal year. Every estimate above assumes the city, county, and school portion of your bill is the stable part of the equation. It hasn't been stable in a long time, but that's about to change. San Antonio's city property tax rate has sat at $0.541590 per $100 of assessed value for three consecutive years, and the San Antonio Report has documented that the city hasn't raised that rate at all in 33 years, even as officials now say they're headed toward a change.
City Manager Erik Walsh put it plainly in a May budget briefing: "It's not lost upon me that the city hasn't increased the tax rate in 33 years." The pressure is coming from a specific place. Bexar County's overall taxable value rose about 2.5% in 2026, but the value of existing properties inside San Antonio's city limits actually fell roughly 3.54%, and residential building permits are projected down about 24% for the year. Fewer new homes plus falling values on existing ones means less new revenue for the city even as costs keep climbing.
What that translates to on your actual bill is still unsettled, which is worth sitting with for a second. In May, one council member cited a proposed change of roughly $17 a year for the average homestead. By an August 11 budget update, city staff were modeling a scenario where using an unused rate "increment" from prior years and maxing out the allowable property tax rate would cost the average homestead an additional $81 in city taxes, with the 46% of homesteads carrying a senior or disabled tax freeze unaffected either way. Council hasn't voted. A vote isn't expected until September. The people setting the rate don't agree yet on how big the change will be, which tells you something useful: nobody's estimate right now, including the city's, should be treated as final.
What This Means If You're Under Contract Right Now
Tax Year 2026 rates for every taxing entity in Bexar County, including the city, won't be adopted until September or October. If you're closing before then, the bill you're budgeting against is still built on last year's rates. If you're closing after, expect the number on your first real tax statement to differ from whatever your lender's initial escrow analysis assumed, because that analysis is a projection made before the actual rate exists.
Combine that with a lot in a district whose paperwork hasn't caught up to county records yet, and you have two independent sources of drift pointing the same direction: upward, and later than most buyers expect. Neither one shows up as a red flag during a normal walkthrough. Both show up on the first bill.
None of this is a reason to walk away from new construction in San Antonio. It's a reason to ask sharper questions earlier, get the district paperwork in writing before you're contractually locked in, and build a little room into your monthly number rather than treating the builder's worksheet as the final word.
Frequently Asked Questions
If nobody gave me a PID notice, does that mean my new home definitely isn't in one? Not necessarily. It means the seller either confirmed there's no district or the disclosure process missed one that exists but hasn't been indexed in county appraisal records yet. Ask the builder directly and request the service and assessment plan rather than relying on silence as an answer.
Can I back out of my contract if I learn about a PID after signing? Under Texas Property Code §5.014, if the required notice wasn't given before the contract was signed, you generally have the right to terminate. If the notice is given at or before closing and you close anyway, that right is typically treated as waived, so timing matters more than most buyers realize.
Will a possible city tax rate increase hit my 2026 bill? Tax Year 2026 rates for the city and other Bexar County entities aren't adopted until September or October 2026. If council approves a change, it would first appear on the bill due January 31, 2027, not on anything you've already received.
If you're weighing new construction against resale in San Antonio right now, or trying to figure out what a specific address actually costs once every line item is accounted for, Option One spends its days inside exactly this kind of paperwork. Contact us before you write the offer, not after the first bill arrives.
