Why I Walked Away From My Own New Construction Home in San Antonio After Multiple Inspections
New construction in San Antonio does not mean problem-free construction. I was under contract on my own new build when an independent inspector found an eight-foot sewer line defect the builder could not fix. Two inspections, one failed repair, and $1,300 in sunk costs later, I walked away. Here is what happened and what every buyer should know before closing on a new build.
I Was the Buyer This Time
I sell real estate in San Antonio. I know what inspectors find. I still almost closed on a home with a major underground defect because I nearly skipped the one test that caught it.
When I went under contract on a new-construction home, friends asked why I was spending $450 on an independent inspection. The house was brand new. The city already signed off. But I had walked enough new builds with clients to know that a municipal code inspection and a buyer’s inspection cover two completely different scopes. City inspectors check code compliance at staged intervals: foundation pour, framing, electrical rough-in, final occupancy. They confirm the builder met minimum requirements at each milestone. They do not come back to evaluate the finished product.
An independent inspector does. One visit, top to bottom, testing every system the city was never on site to see after drywall went up. I booked the inspection and added a sewer camera scope for an extra $200. That camera changed everything.
The Eight-Foot Belly Nobody Would Have Found
My inspector fed a camera from the cleanout near the foundation toward the street connection. Halfway through, the live feed showed the pipe sagging into a long, visible low point. Standing water pooled in the depression. Eight feet of continuous sag, completely invisible from the surface.
A sewer belly is a sag in the underground waste line where the pipe settles below its proper slope. Waste and water collect in the low point instead of flowing to the street. Short bellies sometimes self-correct. An eight-foot belly does not. Waste accumulates, bacteria colonizes the standing water, and backups become recurring. The only permanent fix is excavation: dig up the yard, remove the sagging section, and re-lay the pipe at correct grade. On a new build, this is not cosmetic. It is a structural defect in the underground plumbing system.
No surface inspection would have caught this. No builder walkthrough checks sewer lines. No city code inspector scopes underground plumbing after the slab is poured. Without that $200 camera add-on, I would have closed on a home with a ticking clock under the foundation.
The Builder Said They Fixed It
I reported the belly. The builder agreed to repair it. Two weeks later, I paid $275 for a reinspection because I wanted camera verification, not just the builder’s word.
The reinspection was worse. The standing water at the low point had increased. New debris sat near the street connection that had not been there before. Whatever the crew did to that line, it was not a fix. I still had the original scope photos on my phone. Side by side, the difference was undeniable: wider pool, deeper sag, construction debris partially blocking flow near the municipal tap.
Either the crew did not understand what an eight-foot sewer belly actually requires, or someone decided a surface-level pass would satisfy me long enough to reach the closing table. Neither version inspired confidence in anything else on the punch list.
Walking Away
I terminated the contract three days after the reinspection. Between the inspection, the sewer scope, and the reinspection, I had close to $800 in fees I would never see again. My $500 option money was gone. Walking away cost me roughly $1,300 and six weeks of planning.
It was still the cheapest option on the table. A sewer line with that defect does not heal on its own. In San Antonio’s expansive clay soil, standing water beneath a slab causes the ground to swell and shift. Foundation repairs in this market start around $5,000 for minor pier work and climb past $15,000 when a structural engineer finds multiple failure points. The builder’s one-year workmanship warranty would not have covered a defect they already tried to fix once.
The hardest part was not the money. I had already pictured where my couch would sit, planned the backyard, told friends and family I found the one. You build an emotional connection to a house before you hold the keys, and walking away from that picture hurts in a way no spreadsheet captures. But I kept coming back to one question: would I rather lose $1,300 now or spend years fighting sewage backups and watching cracks crawl across a foundation? The math made the call. My feelings caught up weeks later.
What City Inspectors Check vs. What They Skip
This is the gap that catches buyers. City code inspections happen at four to six staged intervals during construction. Inspectors verify minimum code compliance at each checkpoint, sign off, and move to the next job. They never return to evaluate the finished home. An independent inspector evaluates the completed house in one visit, testing systems the city was never on site to see.
| Inspection Item | City Code Inspector | Independent Inspector |
|---|---|---|
| Sewer line camera scope | Not included in any phase | Full camera scope from cleanout to city main |
| Foundation levelness | Checks footing depth and rebar before pour | Measures post-construction slab elevation at multiple points |
| HVAC duct integrity | Verifies equipment placement | Pressure-tests entire duct system for leaks |
| Electrical panel torque | Confirms wire gauge and breaker sizing | Torque-tests all lug connections to manufacturer spec |
| Roof flashing detail | Inspects sheathing at framing stage | Evaluates every flashing transition on the finished roof |
| Drainage grading | Reviews builder’s grading plan at rough grade | Measures actual finished-grade slope from the foundation |
Every row in the independent column represents a test the city process was never designed to perform. The sewer camera that found my eight-foot belly is not part of any municipal inspection phase in Texas. If you are buying new construction, your own inspector is the only person on the job site working for you.
How to Protect Yourself on a New Construction Contract
The contract phase is where you hold leverage. Once you close, warranty claims replace negotiation power, and the builder controls the repair timeline. Every problem in this article was caught because independent inspection rights were written into the contract before signing.
- Hire your own inspector: Find a TREC-licensed inspector with specific new construction experience who reports only to you. Builders sometimes offer a “courtesy inspection” through their preferred vendor, but that inspector has a financial relationship with the builder. Pay the $400 to $500 yourself.
- Add a sewer camera scope: Standard inspections do not include sewer lines. A camera scope costs $150 to $250 and catches bellies, offsets, and improper connections invisible from above ground.
- Inspect before the final walkthrough: If you inspect after, the builder reclassifies every finding as a warranty item on their timeline. Inspecting before means unresolved issues stay as contract negotiation points where you can still walk away.
- If the builder claims a fix, reinspect: Do not take the builder’s word. Pay for independent verification before you accept the repair and release your remaining leverage.
The Numbers
This is what the decision looked like on paper.
- Cost to walk away: $450 inspection + $200 sewer scope + $275 reinspection + $500 option money = roughly $1,300 total
- Cost to stay: Sewer excavation and re-lay starts at $3,000 to $8,000. Foundation pier repairs in San Antonio’s clay soil start at $5,000 and climb past $15,000. Builder warranty would not cover a defect they already attempted to repair.
- Time lost: Six weeks from contract to termination
- Time saved: Years of recurring backups, warranty disputes, and potential foundation damage from standing water under the slab
The Bottom Line
A licensed real estate agent, someone who walks new builds with clients for a living, nearly closed on a home with an eight-foot sewer defect the builder could not fix. The city signed off on the house. The builder said it was ready. The only person who found the problem was an independent inspector with a $200 camera scope. That is the reality of new construction in San Antonio.
- Total cost to walk away: $1,300. That covered the $450 inspection, $200 sewer scope, $275 reinspection, and $500 option money. Every dollar was non-refundable. It was still the cheapest outcome available.
- Sewer excavation and re-lay runs $3,000 to $8,000. That is the repair cost for the defect the builder failed to fix. If the belly caused foundation issues from standing water in San Antonio’s clay soil, pier repairs start at $5,000 and climb past $15,000.
- Builder warranties typically exclude underground systems after year one. Most Texas builder warranties cover structural defects for ten years but limit sewer, drainage, and underground plumbing coverage to the first twelve months. A problem documented before closing gets repaired at the builder’s expense. The same problem found in month 14 is yours.
- The $450 inspection is the cheapest protection in real estate. On a $300,000+ new-construction purchase, that is 0.15% of the price. It catches drainage failures, missing flashing, HVAC duct leaks, and underground defects that no city inspector or builder walkthrough is designed to find.
- Always reinspect a builder repair before accepting it. The builder on this deal claimed the sewer line was fixed. The reinspection camera showed the problem was worse. Without independent verification, a failed repair looks identical to a completed one on paper.
Every buyer I work with hears this story. Not to scare them, but because it answers the question I get in every first consultation: “Why would I pay for an inspection on a brand-new house?” Because the $450 I spent on my own inspection is the best money I have ever spent on a real estate transaction. It saved me from closing on a home with a major defect the builder could not resolve, and it cost less than a single month’s mortgage payment. Book the inspection. Add the sewer scope. Schedule it before the final walkthrough. That is the lesson.
Frequently Asked Questions
Do new construction homes need an independent inspection?
Yes. City code inspections check minimum compliance at staged intervals during construction. They do not evaluate the finished home. Independent inspectors routinely find disconnected HVAC ducts, missing roof flashing, drainage grading failures, and sewer line defects on brand-new builds in San Antonio. The inspection costs $350 to $600 and should be scheduled before your final walkthrough so unresolved issues remain contract negotiation points.
What does a sewer scope cost on a new construction home?
A sewer camera scope in San Antonio runs $150 to $250 as an add-on to a standard home inspection. The camera feeds from the cleanout near the foundation to the street connection, checking for bellies, offsets, root intrusion, and improper connections. Standard home inspections do not include sewer lines, and no city code inspection phase covers underground plumbing after the slab is poured.
Can you walk away from a new construction contract in Texas?
Texas residential contracts include an option period that gives the buyer the right to terminate for any reason. The option period typically costs $100 to $500 in non-refundable option money. If your inspection reveals defects the builder cannot or will not resolve, you can terminate during the option period and lose only the option fee and any inspection costs. After the option period expires, your ability to terminate depends on the specific contract terms and any contingencies you negotiated.
