Cedar Creek data center filings now outline $5.4 billion in estimated construction across eight projects along FM 535. Together, the records describe about 5.25 million square feet of new space in Bastrop County. Two recent filings account for $1.2 billion of that total, adding another chapter to a development story that began well before this month.
The newest pair, EDCAUS15 and EDCAUS16, lists 6402 FM 535 as its address. Each calls for a 591,400-square-foot, one-story data center with offices and site improvements. Their reported construction window runs from November 2, 2026, through May 15, 2028.
Texas Construction Media reviewed the eight state construction records alongside county agreements, property records, the Texas Comptroller’s data-center register and utility statements. Those sources connect the numbered project groups to EdgeConneX and reveal a much larger undertaking than a single building. They also leave important questions about the expansion’s final layout and utility arrangements.
Featured image: Representative rendering supplied by EdgeConneX, published in company-sponsored material. It has not been confirmed as the design for the Cedar Creek expansion.
Eight Cedar Creek Data Center Filings, Three Addresses
The Cedar Creek data center filings fall into three address groups. Four buildings use 6682 FM 535, two use 6402 FM 535, and two use 6543 FM 535. Each filing names Gensler as the design firm and describes new data-center construction with supporting offices and associated site improvements.
| Project | FM 535 address | Estimate | Square feet | Filed schedule |
|---|---|---|---|---|
| EDCAUS11 | 6682 | $700M | 730,000 | June 2026–Dec. 2028 |
| EDCAUS12 | 6682 | $700M | 730,000 | June 2026–Dec. 2028 |
| EDCAUS13 | 6682 | $700M | 730,000 | Sept. 2026–March 2029 |
| EDCAUS14 | 6682 | $700M | 730,000 | Sept. 2026–March 2029 |
| EDCAUS15 | 6402 | $600M | 591,400 | Nov. 2026–May 2028 |
| EDCAUS16 | 6402 | $600M | 591,400 | Nov. 2026–May 2028 |
| EDCAUS31 | 6543 | $700M | 577,000 | Oct. 2026–Dec. 2028 |
| EDCAUS32 | 6543 | $700M | 577,000 | Oct. 2026–Dec. 2028 |
Source: linked TDLR records. Areas follow the dedicated square-footage fields; slightly different figures appear in some scope descriptions. Dates are filed construction estimates, not confirmed opening dates.
The $5.4 billion figure adds the eight individual estimates. It is not a company-announced final campus budget or a measure of money already spent. The records do not reconcile whether any shared site improvements overlap between filings.
All eight records were marked Project Registered when reviewed. A listed start date alone does not establish how much construction has occurred, and none of these tenant fields identifies an end customer.
Who Is Behind the Cedar Creek Data Center Plans?
The Texas Comptroller’s data-center register identifies ECX AUS11–16 under EdgeConnex MCN Austin Property 5 LLC, with an affiliated Operations 5 company listed as occupant and operator. That entry carries an April 24, 2026, effective date.
A second entry, effective July 8, 2026, covers ECX AUS31–36 under EdgeConnex MCN Austin Property 7 LLC and its affiliated operating company. That group name extends beyond the AUS31 and AUS32 construction filings reviewed here. It does not, by itself, provide construction dates or budgets for AUS33–36.
The register separately names CoreWeave as occupant of EdgeConneX AU02. It does not identify CoreWeave as the customer for either of these newer groups. The expansion’s future users therefore remain an unanswered part of the story.
Where the FM 535 Plans Take Shape
Bastrop Central Appraisal District’s record for property 22339 identifies a 179.166-acre tract at 6682 FM 535 owned by EdgeConnex MCN Austin Property 5 LLC. That supplies both an address match for the four AUS11–14 filings and an entity match to the state register.
Records for the other filed addresses list Uppingham Adams Holdings LLC as the landowner. Meanwhile, the AUS11–16 construction filings name Burr Computer Environment Inc. in their owner fields. These records describe different roles; they do not establish every ownership, lease or development relationship.
That distinction matters when measuring the project’s footprint. A large host property can contain land outside a proposed building site. Adding nearby tract acreages would not produce a reliable campus boundary.
The Earlier Plan and County Tax Agreements
The Cedar Creek data center story already had several phases before the latest registrations. Bastrop County’s December 2024 agreement package approved four phased-building tax agreements with DFW33220N LLC.
Those agreements provide a conditional 75% abatement of county taxes on qualifying increased assessed value for up to ten tax years. They do not exempt the development from all taxes, and the documents reviewed do not establish that the agreements automatically cover the eight newer filings.
The attached historical application described four buildings totaling 2.8 million square feet, with full-occupancy estimates extending through 2031. Its $1.4 billion estimate concerned real-estate improvement value. That older planning figure should not be added to the newer construction estimates as one verified investment total.
Cedar Creek Data Center Water: What the Agreement Covers
Aqua WSC provided a particularly useful clarification in its June 2026 statement. It identified a service agreement with DFW33220N LLC for 6752 FM 535, an earlier project address distinct from the three addresses in the table.
The agreement covers 350 living-unit equivalents and a maximum flow of 210 gallons per minute. Aqua said water service was expected in 2027 after infrastructure upgrades paid for by EdgeConneX.
Aqua also clarified that its role is a utility-customer relationship, disputing descriptions of it as a regional partner. Its statement establishes terms for that location; it does not establish water demand or service arrangements for all eight newer buildings. Maximum flow is also different from measured daily water consumption.
Power Remains a Key Cedar Creek Data Center Question
The documents reviewed do not confirm a dedicated power-generation plant for this expansion. A substation, which handles incoming electricity, serves a different purpose from a natural-gas plant that generates it. Nearby power projects cannot be assigned to EdgeConneX without a documented connection.
The broader approval process is also changing. ERCOT’s September 9 notice describes verification requests for large-load applicants conditionally included in its Batch Zero process and other specified pathways. Completing verification is a condition for Batch Zero inclusion. The individual status of these buildings was not established in this review.
A separate ERCOT information request covers data centers of at least 25 megawatts pursuing interconnection. It seeks information on electricity, water, ownership, public financial assistance and community impacts. Responses are due October 12, 2026, with a report intended by December 10.
Those records offer a concrete next reporting milestone. They do not show that these particular buildings have been canceled, cleared for electricity service or assigned a final energization date.
What Comes Next Along FM 535
For Cedar Creek, the significance is the number of large projects moving through the record system together. The eight filings span construction schedules from 2026 into 2029, while the state’s project-group names suggest a wider planning context still to be explained.
A dated master plan would clarify how the Cedar Creek data center buildings fit together. Project-specific water agreements, power decisions and confirmed construction progress would show how that plan translates into a working campus. Until then, the filings provide a substantial, documented picture of the proposed scale without settling every detail of the final buildout.
For another look at Texas data-center development, read our coverage of Project Hyper in Childress.