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Quick answer: A Texas Department of Licensing and Regulation (TDLR) filing says Neuralink planned to start work on a new $2.7 million, 7,900-square-foot "Vivarium Research Facility" at its Del Valle campus, southeast of Austin, on Nov. 2, 2026, which is today. According to ATX Things' read of the state's records, it is the fifth Neuralink filing at 2200 Caldwell Lane since April 2024, and the five add up to about $26.7 million in estimated construction cost.
The Austin American-Statesman and KVUE reported the vivarium filing on Oct. 30. This piece does something they did not: it lays the whole paper trail at that address side by side, so you can see how the campus went from an office fit-out to a 112,000-square-foot building with a "robot space" on the third floor. We have not been to the site, and Neuralink has not answered a question from us. Everything below comes from the state's own records.
What this is and is not. A TDLR "TABS" filing is a registration under Texas' accessibility law for buildings. The owner files it, with estimated cost, square footage, a scope of work and planned start and finish dates. It is not a building permit, and it does not prove a shovel has hit dirt. The start date is the date the owner wrote down.
What does the new Neuralink filing in Del Valle say?
The vivarium filing (project TABS2027004654) was registered Oct. 28, 2026. Its status on the state's page is "Project Registered," which is the first step, before any review.
| Field | What the filing says |
|---|---|
| Project | Neuralink - Vivarium Research Facility |
| Where | 2200 Caldwell Lane, Del Valle, TX 78617 (Travis County) |
| Planned start | Nov. 2, 2026 |
| Planned completion | May 3, 2027 |
| Estimated cost | $2,700,000 |
| Size | 7,900 square feet, one story, new construction |
| Funding | "Privately funded, on private land for private use" |
| Tenant | Not assigned |
The scope of work, in the filing's words: "New 1-story laboratory research building with associated support spaces, procedure room, storage, sanitation, enrichment spaces, controlled enclosures, and building service areas."
A vivarium is, in general usage, a facility for housing and caring for research animals. The filing does not say which animals, how many, or what work will happen in the procedure room, and we are not going to guess. If you want those answers, they belong to Neuralink and to the regulators who oversee animal research.
How did the Del Valle campus get here?
This is the part you will not find in a single news story. Our database tracks TDLR project registrations across Texas. Searching it for Neuralink as owner returns five filings at the Caldwell Lane address, all registered in the last two and a half years:
| Registered | Project | Estimated cost | Size | Status on the state page |
|---|---|---|---|---|
| Apr. 22, 2024 | Bldg 8 Phase 2 (office fit-out) | $1,000,000 | 3,410 sq ft | Inspection Complete |
| Jul. 10, 2024 | ATX1 New Construction | $14,700,000 | 112,000 sq ft | Review Complete |
| Feb. 6, 2026 | ATX1 Third Floor Tenant Improvement | $8,200,000 | 37,607 sq ft | Review Complete |
| Oct. 21, 2026 | ATX1 Robot Stair Addition | $109,000 | 105 sq ft | Project Registered |
| Oct. 28, 2026 | Vivarium Research Facility | $2,700,000 | 7,900 sq ft | Project Registered |
Add the five estimates and you get $26,709,000. Treat that as a filing-level number, not an invoice: these are costs the owner estimated at registration, and some projects change.
The big one is ATX1. Its filing describes a "new 3-story building with offices, machine shop and cleanroom device manufacturing," designed by Studio8 Architects, an Austin firm. The February 2026 filing then fills in the third floor as "office and manufacturing use." A March 2026 Neurofounders report on that $8.2 million filing said it lines up with Neuralink's stated 2026 production goals; the state record itself says nothing about intent.
What is the "robot stair"?
The smallest filing may be the most readable one. On Oct. 21, Neuralink registered a $109,000, 105-square-foot job to add "a new convenience stair connecting 2nd floor implant space to 3rd floor robot space." Planned start: Nov. 15. Planned finish: Jan. 16, 2027.
"ADDITION OF NEW CONVENIENCE STAIR CONNECTING 2ND FLOOR IMPLANT SPACE TO 3RD FLOOR ROBOT SPACE — scope of work, TDLR project TABS2027004080
That is all the filing says. It is a small piece of evidence that the building's floors are organized by function, and nothing more.
Illustration generated by AI to show a construction start; it is not a photo of the Neuralink site.
What does this mean for people who live near Del Valle?
Honestly, the filings are quiet on that. Nothing in the five records mentions road work, hours, truck traffic, noise or hiring. The site sits roughly 13 miles east of downtown Austin as the crow flies, by our calculation from the filing's coordinates. We did not have a drive-time source for this piece, so we are not quoting one.
What the records do establish is momentum. Five registrations since spring 2024, and two of them in the last two weeks. The stair and the vivarium are planned to overlap from Nov. 15 into early 2027.
Want to check the state's record yourself? Search TDLR's TABS project database at tdlr.texas.gov/TABS for the project number (TABS2027004654 for the vivarium) and the page shows scope, dates and status. Our own tracker for the same filings lives at zabalist.com/projects.
What we can't tell you yet
- Whether work has started. The filing gives a planned date. We have no photo, inspection record or statement confirming a first day on site.
- Whether the schedule holds. Registered dates move. The state page is the place to watch for a status change to review or inspection.
- What happens inside the vivarium. The filing lists room types, not research.
- Who is building it. No contractor is named on the state page; the design firm is listed as Neuralink itself.
Where does this fit in Austin-area construction?
It is one of dozens of commercial filings landing each month. For the bigger picture across the region, read our Austin Development Report for October 2026, and for another private campus first spotted in state paperwork, see the Cedar Creek data center filing. We also track the paperwork before announcements, as with Amazon's Project Toaster foundations.
FAQ
Where is Neuralink's Austin-area campus? At 2200 Caldwell Lane in Del Valle, in Travis County, southeast of Austin. State filings there are registered under the facility name ATX1 and, for the newest project, "Vivarium Research Facility."
When does construction start on the Neuralink vivarium? The state filing lists a planned start of Nov. 2, 2026 and a planned completion of May 3, 2027. The Statesman reported on Oct. 30 that the facility was expected to break ground in November. We have not independently confirmed that work began.
How much will it cost? The owner's registered estimate is $2.7 million for 7,900 square feet. It is an estimate filed with the state, not a contract price.
Is a TDLR filing the same as a building permit? No. It is an accessibility-law registration. City, county or utility permits are separate, and this article did not review them.
Where can I read the filings? On the Texas Department of Licensing and Regulation's TABS project search, by project number: TABS2027004654 (vivarium), TABS2027004080 (robot stair), TABS2026011928 (third floor), TABS2024022676 (ATX1) and TABS2024016698 (Bldg 8 Phase 2).
Sources: TDLR TABS project registrations listed above, read Nov. 2, 2026. We read the vivarium and ATX1 pages directly on the state site; the other three come from the Zabalist database, which mirrors the state's records. Austin American-Statesman, "Elon Musk's Neuralink plans $2.7M research lab in Del Valle near Austin," Oct. 30, 2026. KVUE, Oct. 30, 2026. Neurofounders, "Neuralink Scales in Austin Ahead of Production Push," Mar. 3, 2026.
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