Foundation Movement in San Antonio: What Sellers Must Disclose and How to Price It

Foundation movement is the single most misunderstood defect in San Antonio residential sales. Sellers hide it, exaggerate it, or panic-price around it. All three cost money. The honest reality: a large share of homes built on Bexar County's expansive clay have some degree of movement, most of it cosmetic, and buyers and their agents already assume that going in. What kills deals is not a cracked sheetrock seam — it is a seller who checked "No" on the Seller's Disclosure Notice when the answer was "Yes."

Here is how to price it, disclose it, and get to the closing table without a repair-request bloodbath during the option period.

Why San Antonio homes move in the first place

Most of Bexar County sits on Houston Black and Branyon clays — high-plasticity soils that swell when wet and shrink when dry. Drought years (2011, 2022–2023) pull moisture out from under slab edges. Wet years push it back. The slab rides that cycle. Areas with the most complaints tend to share the same soil profile:

• South and southwest sectors — Harlandale ISD, South San ISD, and parts of Southwest ISD sit on some of the most active clay in the county.
• The near-northeast — parts of 78209 (Alamo Heights, Terrell Hills, Olmos Park) with older pier-and-beam and 1950s slabs.
• Far north Stone Oak (78258) and Timberwood Park — newer slabs, but heavy tree cover and irrigation swings pull moisture unevenly.
• Converse, Cibolo, and Schertz new-builds — post-tension slabs on fill dirt that was not always allowed to settle long enough.

Movement does not mean the house is failing. It means the slab has done what slabs on this soil do. Your job as a seller is to characterize it accurately.

What Section 5.008 and the OP-H actually require

Texas Property Code § 5.008 requires the seller of a residential property with not more than one dwelling unit to deliver a written disclosure of the property's condition. TREC's OP-H (Seller's Disclosure Notice) is the standard form. Read the structural section carefully. It asks whether you are aware of:

• Previous foundation repairs
• Active settling, movement, or cracking
• Any defects in the foundation, slab, floors, walls, or ceilings

"Aware" is the operative word. You are not certifying an engineer's opinion. You are disclosing what you know. If you had a company come out five years ago and install six piers under the northeast corner, you disclose that — including the contractor, date, and whether the warranty is transferable. If you have a diagonal crack over the front door that you have patched twice, you disclose that.

Sellers get sued under § 5.008 not for having foundation issues, but for concealing them. The remedy in a fraudulent-disclosure case can include actual damages, and depending on how it is pled, DTPA exposure. This is a bad category of lawsuit to lose.

Get an engineer's letter before you list, not after

If there is any visible evidence — sticking doors, stair-step cracks in brick, separation at the fireplace, sloping floors — spend $500 to $900 on a structural engineer's evaluation before you go live on the MLS. Use a licensed Texas P.E., not the free "inspection" offered by a foundation repair company. The repair company gets paid to find work. The engineer gets paid to tell the truth.

You want the letter to say one of three things:

1. Movement is within normal tolerance for the soil type; no repair recommended.
2. Cosmetic repairs advised; no structural intervention required.
3. Specific structural repair recommended (and what).

With that letter in hand before listing, you control the narrative. Without it, the buyer's inspector writes the narrative for you at day four of the option period, and every offer gets renegotiated.

Price it by category, not by fear

Think about three tiers.

Cosmetic-only

Hairline cracks in sheetrock, minor brick separation, a door that sticks in August. Engineer says no repair needed. Price at market. Note it on the OP-H. Do not discount.

Previously repaired with transferable warranty

Piers were installed, permit was pulled if required, the contractor issues a lifetime transferable warranty (most of the reputable San Antonio foundation companies do). Provide the invoice, the pier map, and the warranty transfer paperwork upfront. This is not a discount item. It is a resolved item. Some buyers will still discount for stigma — expect roughly 1–3% of price pressure depending on price band, less at the top of the market where buyers understand it.

Active, unrepaired structural movement

Engineer recommends piers. You have two choices: repair before listing (get 2–3 bids, expect $4,000–$12,000+ for typical residential jobs depending on pier count and access), or list as-is and price the discount in. If you list as-is, expect buyers to ask for more than the actual repair cost — often 1.5x — because they are absorbing the uncertainty and the future disclosure obligation when they resell.

In most price bands under $500,000, repairing before listing nets more than pricing the discount in. Above that, buyers often prefer a credit so they can choose their own contractor.

FHA, VA, and conventional appraisal exposure

If your buyer is financing with FHA or VA, an appraiser who sees visible structural distress can call for an engineer's report as a condition of the appraisal. If the report recommends repair, the lender will require it before funding. Conventional appraisers are less consistent but can do the same.

This is why the pre-listing engineer's letter matters. If you can hand the appraiser a stamped letter saying "no structural repair required," you short-circuit the entire lender escalation. If you cannot, you are looking at a delayed closing at best and a re-negotiation at worst — the same territory covered in a low-appraisal scenario.

What most sellers get wrong

• Checking "No" on the OP-H because "the crack is small." If you are aware of it, disclose it. Small is a description, not an exemption.
• Not disclosing prior repairs because "it's fixed." Prior repair is specifically asked about on the form. Concealing it is the fastest path to a post-closing lawsuit.
• Using the foundation repair company's free inspection as your evidence. Buyers' agents discount those reports to zero. Get a P.E. letter.
• Losing the warranty paperwork. A transferable warranty from a reputable contractor is worth thousands in buyer confidence. If you cannot find it, call the contractor — most keep records for decades and will reissue.
• Over-repairing to "be safe." Installing 12 piers when the engineer said you needed six does not double the resale value. It doubles your out-of-pocket. Do what the engineer specifies.
• Waiting until the buyer's inspection to deal with it. Every issue costs more inside the option period than it does before listing, because now the buyer has leverage and a deadline.

How to present it in the listing

Do not hide it in the disclosure and hope no one reads. Put it in the agent remarks and the public remarks in plain language: "Structural engineer's letter on file — cosmetic movement only, no repair recommended." Or: "Foundation repaired 2019 by [company category], transferable lifetime warranty conveys." You want the buyers who read that and keep going. You do not want the buyers who would have panicked on day five of the option period.

A well-documented foundation history is a marketing asset in San Antonio. It tells sophisticated buyers you are not hiding anything, which makes them trust the rest of the disclosure. That trust is what closes deals here.

When you are ready to list — with the engineer's letter, warranty paperwork, and a defensible price — you can list your home on HomeFinder at /list-your-home, or connect with a San Antonio listing agent who has handled foundation-flagged sales before at /agents. More seller playbooks are at /resources.