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Outbyte Driver Updater FREEFix the driver behind crashes, sound loss and screen glitchesFind Drivers →Outbyte PC Repair FREEClear out junk files and repair common Windows errorsFree Scan →A San Francisco lawsuit filed by 950 Lombard LLC on July 12, 2024, alleges that the luxury home publicly linked to OpenAI CEO Sam Altman was sold with major construction and water-management defects. The complaint describes an allegedly leaking infinity pool, lower-level flooding, widespread mold, sewer failures and other problems, and estimates comprehensive repairs at more than $4 million. Those are allegations in a civil complaint—not a court finding that Altman’s house was defective or that any defendant is liable.
The property behind the headline
The home is at 950 Lombard Street in San Francisco’s Russian Hill neighborhood. Marketing and contemporaneous reporting described an approximately 9,500-square-foot compound with an infinity pool, elevator, wellness cottage, private garden and a “Batcave”-style garage or tunnel.
Reports said the property sold for about $27 million in 2020. Earlier asking prices were reported at roughly $40.5 million to $45 million, so those figures should not be confused with the eventual purchase price. SFGATE’s account linked Altman to the property through public records and an investment company associated with Altman and his brother. The complaint itself names the property-owning LLC, not Altman personally.
What 950 Lombard LLC says went wrong
Infinity-pool leak and lower-level flooding
According to the July 12, 2024 complaint, defects in the infinity pool’s design and waterproofing allowed water to enter the entire subfloor of the lower level in or around August 2023. The filing says a gypsum drop ceiling fell as a result. This allegation concerns water from the pool system; it does not say that the pool itself collapsed.
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Mold and loss of use
The complaint says environmental testing confirmed widespread mold in the lower level. It alleges that the resulting hazardous condition prevented occupation and use of the entire lower level of the main residence. That is narrower than a finding that the whole mansion was uninhabitable.
Sewer, laundry and plumbing failures
The filing alleges that a bathroom sewer line was never properly connected and discharged raw sewage onto an inaccessible side area beside the residence. It separately says a sewer pipe serving the laundry system was crushed, causing backups and spillage. These allegations describe exterior discharge and plumbing backups, not sewage flooding every room of the house.
Drainage, irrigation and other building systems
950 Lombard LLC also alleges leaking or defective irrigation lines, planters, drainage and waterproofing components, skylights, plumbing and electrical systems. The complaint further alleges that subcontractors obstructed drainage and sewer pipes in retaliation after disputes arose. That “sabotage” theory is a claim by the plaintiff, not an established fact.
Who filed the case and who was sued?
The plaintiff is 950 Lombard LLC, the entity identified as owning the property. Public reporting connects Altman to that ownership structure, but the complaint does not style the case as one personally brought by Sam Altman.
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Scan for outdated or missing drivers - takes under a minuteDriver Scan →Clear out junk files and repair common Windows errorsFree Scan →Fix the driver behind crashes, sound loss and screen glitchesFind Drivers →| Defendant named in the complaint | How the filing describes the party |
|---|---|
| Troon Pacific Inc. | Developer identified in the complaint |
| Gregory R. Malin | Individual associated with Troon Pacific, according to the filing |
| Eight Forty One LLC | Named corporate defendant |
| Impact Builders LLC | Named builder defendant |
| A.C.C.P. Inc. d/b/a Aquascape | Named pool or water-feature contractor |
| Thompson Suskind LLC | Named professional-services defendant |
| Does 1–50 | Unknown parties to be identified later |
The complaint asserts that Troon Pacific and Malin were involved in developing and selling the home and makes corporate-control and alter-ego allegations. Those assertions remain disputed claims unless established in later proceedings.
What legal claims were asserted?
The pleading lists eight causes of action:
- Breach of contract
- Breach of the implied covenant of good faith and fair dealing
- Breach of implied warranty
- Breach of the implied covenant to perform work competently
- Negligence
- Fraudulent inducement
- Negligent misrepresentation
- Unfair competition
These labels identify the legal theories 950 Lombard LLC is pursuing. They do not mean a court has found fraud, concealment, negligence or defective construction.
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How much money is at stake?
The complaint seeks damages and attorneys’ fees and estimates that a comprehensive repair program—including pool replacement, mold remediation and resulting damage—would cost more than $4 million. That figure is a plaintiff-side estimate, not a paid invoice, independently verified bid or court-ordered award.
The approximately $27 million purchase price is likewise a reported transaction value, while the higher figures reported before the sale were asking prices. Keeping those numbers separate avoids turning a listing price into a claim about what the buyer actually paid.
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Did the developer respond?
Contemporaneous reports said Troon Pacific, Malin, Altman and/or representatives for the property owner did not immediately respond to requests for comment. A lack of an immediate response is not an admission of liability and does not resolve the factual disputes.
Why Troon Pacific’s other legal dispute appears in coverage
Coverage also referenced a separate investor dispute involving Troon Pacific. In that different proceeding, an arbitrator reportedly ordered the company to pay about $48.1 million to investors. Later reporting described allegations involving self-dealing, fees and incomplete or failed luxury-home projects.
That arbitration involved different plaintiffs, projects and legal proceedings. It may provide background about the developer, but it does not prove the allegations concerning 950 Lombard Street.
What is established—and what is not
- Established by the filing: 950 Lombard LLC filed a complaint in San Francisco Superior Court on July 12, 2024, naming the defendants listed above and asserting the specified legal claims.
- Alleged by the plaintiff: pool-system leaks, flooding, a fallen ceiling, mold, sewer discharges, crushed plumbing, drainage and waterproofing defects, concealment and retaliatory obstruction.
- Not established by the complaint alone: that every defect existed when the home was sold, that any defendant committed fraud or sabotage, the final repair cost, or who ultimately bears liability.
- Procedural status in the sources reviewed: no final merits ruling or settlement outcome in this mansion case was established.
The headline’s “sucks” is colloquial shorthand for a striking set of allegations. The legally precise version is that an LLC associated in public reporting with Sam Altman sued the developer and contractors, claiming a very expensive San Francisco home suffered serious construction and water-management failures.
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