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Source-backed project record · TX

Microsoft SAT89 / SAT90 Data Centers (US Highway 90 West)

This record consolidates 12 research observations while retaining source distinctions, location precision and unresolved fields.

under_constructionproject status
VERIFIED_PRIMARYbest evidence tier
12linked evidence rows
Project facts

Location and operating record

Operator / developerMicrosoft Corporation
JurisdictionCastroville, TX
Address2995 US Highway 90 West
Location precisionstreet address
CoordinatesNot published; no coordinate inferred
CapacityNot established
AliasesMicrosoft SAT89 / SAT90 Data Centers (US Highway 90 West) · NOT_FOUND · Microsoft SAT89 · Microsoft SAT90
Evidence coverage

What has been researched

Project profile0 rows
Intent / permits0 rows
Civic / infrastructure0 rows
SOURCE RECORD

Microsoft SAT89 / SAT90 Data Centers (US Highway 90 West): source record

under_construction

One of the largest single TDLR permit registrations located in the San Antonio region; two building designations are carried on one permit.

Key data: NOT_FOUND | ERCOT | NOT_FOUND | NOT_FOUND

Claim classification: Not yet assigned

Status date: 2026-09-05

Open source 1 →

OWNERSHIP AND PROFILE

Microsoft SAT89 / SAT90 Data Centers (US Highway 90 West): ownership and profile

under_construction

Developer: Microsoft Corporation | Owner: Microsoft Corporation | Permit applicant: Microsoft Corporation | County: Medina | Research region: San Antonio | Tenants/customers: Microsoft Azure

Claim classification: Not yet assigned

Status date: 2026-09-05

Open source 1 →

POWER AND GRID

Microsoft SAT89 / SAT90 Data Centers (US Highway 90 West): power and grid

under_construction

Key data: Grid area: ERCOT

Claim classification: Not yet assigned

Status date: 2026-09-05

Open source 1 →

WATER AND COOLING

Microsoft SAT89 / SAT90 Data Centers (US Highway 90 West): water and cooling

under_construction

Claim classification: Not yet assigned

Status date: 2026-09-05

Open source 1 →

PERMITS AND JURISDICTION

Microsoft SAT89 / SAT90 Data Centers (US Highway 90 West): permits and jurisdiction

under_construction

Key data: Permit IDs: TABS2025012765 | Jurisdictions: Medina County | State of Texas (TDLR) | ERCOT

Claim classification: Not yet assigned

Status date: 2026-09-05

Open source 1 →

TIMELINE

Microsoft SAT89 / SAT90 Data Centers (US Highway 90 West): timeline

under_construction

Microsoft SAT89/SAT90 permit registered ($765,000,000; 489,400 sq ft)

Claim classification: Not yet assigned

Status date: 2025-05

Open source 1 →

under_construction

Texas Comptroller registry lists Microsoft SAT89 and SAT90 as registered data centers

Claim classification: Not yet assigned

Open source 1 →

STREET ADDRESS

Microsoft SAT89 / SAT90 Data Centers (US Highway 90 West): street address

under_construction

TDLR permit records the US Highway 90 West address for SAT89/SAT90.

Key data: 2995 US Highway 90 West, Medina County, TX

Claim classification: direct_from_primary_permit_record · Verification: verified · Retrieved: 2026-09-05

Status date: 2025-05

Open source 1 →

PROJECT COST

Microsoft SAT89 / SAT90 Data Centers (US Highway 90 West): project cost

under_construction

Permit registration records the declared construction value.

Key data: $765,000,000

Claim classification: direct_from_primary_permit_record · Verification: verified · Retrieved: 2026-09-05

Status date: 2025-05

Limitation: Permit-declared construction value only.

Open source 1 →

BUILDING SQFT

Microsoft SAT89 / SAT90 Data Centers (US Highway 90 West): building sqft

under_construction

Permit registration records the combined building area.

Key data: 489,400 sq ft

Claim classification: direct_from_primary_permit_record · Verification: verified · Retrieved: 2026-09-05

Status date: 2025-05

Open source 1 →

OPERATOR

Microsoft SAT89 / SAT90 Data Centers (US Highway 90 West): operator

under_construction

State registry lists the SAT89 and SAT90 designations under Microsoft.

Key data: Microsoft SAT89, SAT90 in Comptroller data center list

Claim classification: direct_from_primary_state_registry · Verification: verified · Retrieved: 2026-09-05

Status date: 2025-05

Open source 1 →

COMMUNITY RESPONSE

Microsoft SAT89 / SAT90 Data Centers (US Highway 90 West): community response

under_construction

Local coverage frames large data center investment arriving along the U.S. 90 corridor at Castroville.

Key data: Castroville described as bracing for a large data center development on U.S. 90

Claim classification: local_news_report · Verification: partially_verified · Retrieved: 2026-09-05

Status date: 2025-05

Limitation: Trade/local press; specific project attribution to SAT89/90 not explicit.

Open source 1 →

Sources

Evidence and provenance

Open TX state research →

Microsoft SAT89 / SAT90 Data Centers (US Highway 90 West) Data Center Project | Castroville | Compute Equity Atlas