Texas data centers Every registered facility.
C1 Dallas - Allen (LOT 1) LLC
The first building on the CyrusOne Allen campus, with Oracle named as the certified occupant. City and construction records connect the single purpose owner to the campus and show later work inside the original building.
9Sourced facts4Source records4Open gaps
What the record establishes
- Campus parcel
- 63.505 acres[2]
- Later Building One addition area
- 80,620 sq ft[3]
- Later Building One addition cost
- $41.5 million[3]
- Taxable assessed value for Allen schools
- $177.3 million[4]as of January 1st, 2025
- Owner of record
- C1 Dallas - Allen (LOT 1) LLC[1]registry read August 27th, 2026
- Occupant of record
- Oracle America Cloud Services LLC[1]registry read August 27th, 2026
- Operators of record
- C1 Dallas - Allen (LOT 1) LLC and Oracle America, Inc.[1]as of August 27th, 2026
- City subdivision name
- Cyrus One Allen[2]
- Certification effective
- November 1st, 2024[1]
What changes the reading
- The owner's certificate places the legal entity on the Cyrus One Allen parcel. That is the direct public link between the tax registry name and the better known campus name.[1][2]
- The construction filing describes an addition inside Building One and does not identify a tenant. Oracle's role comes from the later tax certification rather than from the construction record.[1][3]
- The city approved a site plan amendment for a second data center building on the parcel. The building in that plan is separate from the addition inside the existing hall and no figures from one are assigned to the other.[2][3]
Still not public
- Total campus power capacity and actual demand are not public.
- The share of the building used by the certified occupant is not public.
- The operating date of the certified use is not stated.
- Cooling design and measured water use are not public.
Source trail
- Data Center ListsTexas Comptroller of Public Accounts
- Replat of Cyrus One AllenCity of Allen
- CyrusOne Allen Campus Building One ExpansionTexas Department of Licensing and Regulation
- Allen ISD Top Taxpayers Report for 2025Collin Central Appraisal District
The registry entry for this facility comes from the Texas Comptroller's certified list of data centers holding a sales tax exemption. Owner, occupant and operator are roles in that filing rather than descriptions of who runs the building.