Armory Innovation District Data Center

approved

Investment conflict: $1.5 billion for the data center itself (missouridatacenters.org) vs $3 billion / $3.1 billion for the wider Armory innovation district (STLPR, RealClear, servercountry.org) - both preserved; project_cost recorded as the $1.5B data center figure. Square footage reported as 487,000 and as roughly 500,000. Jobs: 200 full-time, of which 150 in the Armory. Green Street properties are involved in the district. 120 MW is described as the facility load; Ameren Missouri's existing Midtown infrastructure was reported as not designed to support a 120 MW addition, with grid analysis potentially adding 18-36 months. St. Louis City adopted a data center zoning framework in parallel (Mayor Cara Spencer Executive Order No. 92, September 2025; Board Bill 49). servercountry.org lists the project team as including David Daneshforooz and Steadfast City Economic and Community Partners.

Key data: Ameren Missouri | MISO (Ameren Missouri / AMMO) | St. Louis Water Division

Claim classification: Not yet assigned

Status date: 2026-09-13

Open source 1 →

approved

Developer: Joint venture of Contour, TeraWatt Infrastructure and THO Investments (THO / Third Home Office) | County: St. Louis City | Research region: St. Louis City Midtown

Claim classification: Not yet assigned

Status date: 2026-09-13

Open source 1 →

approved

Key data: Utility: Ameren Missouri | Grid area: MISO (Ameren Missouri / AMMO) | Gross MW: 120

Claim classification: Not yet assigned

Status date: 2026-09-13

Open source 1 →

SOURCE_BACKED

The Armory project is described as a 120 MW, 487,000 sq ft facility developed by Contour, TeraWatt Infrastructure and THO in the former Famous-Barr warehouse, with Ameren Missouri's existing Midtown infrastructure not designed for a 120 MW addition and utility engineering potentially adding 18 to 36 months.

Key data: 120 MW; 487,000 sq ft

Claim classification: official_estimate_or_forecast · Verification: source_backed_unverified · Retrieved: 2026-09-13

Limitation: Third-party case study; the 18-36 month utility engineering estimate is analytic, not an Ameren statement.

Open source 1 →

approved

Key data: Water utility: St. Louis Water Division | Wastewater: Metropolitan St. Louis Sewer District (MSD)

Claim classification: Not yet assigned

Status date: 2026-09-13

Open source 1 →

approved

Key data: Jurisdictions: City of St. Louis | Missouri | Tax incentives: Projected $432.3 million in tax revenue over 10 years | Projected $33.4 million first-year tax revenue to St. Louis Public Schools

Claim classification: Not yet assigned

Status date: 2026-09-13

Open source 1 →

approved

The St. Louis Board of Public Service unanimously approved the conditional use permit for the Midtown data center on 2026-04-21, conditioned on full operation by the fourth quarter of 2028, 200 full-time jobs, a community benefits contribution of $30 per sq ft (about $15 million), a 100% union project, permits withheld until Green Street properties are current on taxes, and use of 500 Prospect for parking.

Key data: CUP unanimously approved 2026-04-21; operational deadline Q4 2028

Claim classification: documented_fact · Verification: verified_by_primary_source · Retrieved: 2026-09-13

Status date: 2026-04-21

Limitation: Conditions are permit obligations, not realized outcomes.

Open source 1 →

approved

Community benefits agreement contribution of $30 per sq ft, approximately $15 million

Claim classification: Not yet assigned

Status date: 2026-09-13

Open source 1 →

approved

100% union project

Claim classification: Not yet assigned

Status date: 2026-09-13

Open source 1 →

approved

Permits withheld until Green Street properties are current on taxes

Claim classification: Not yet assigned

Status date: 2026-09-13

Open source 1 →

approved

500 Prospect property designated for parking

Claim classification: Not yet assigned

Status date: 2026-09-13

Open source 1 →

approved

Lawsuit filed 2026-08-28 by Daniel Pate, Kerry McCullen, the Missouri Workers' Center and the Missouri Coalition for the Environment against the City of St. Louis

Claim classification: Not yet assigned

Status date: 2026-09-13

Open source 1 →

approved

A five-hour Board of Aldermen conditional use permit hearing in March 2026 ended without a decision and a citywide data center moratorium failed on a 7-8 vote; a lawsuit was filed on 2026-08-28 by Daniel Pate, Kerry McCullen, the Missouri Workers' Center and the Missouri Coalition for the Environment against the City of St. Louis.

Key data: Moratorium failed 7-8; lawsuit filed 2026-08-28

Claim classification: documented_fact · Verification: source_backed_unverified · Retrieved: 2026-09-13

Status date: 2026-08-28

Limitation: Advocacy-run litigation tracker; court filings not obtained directly.

Open source 1 →

approved

Joint venture announced a 487,000 sq ft, 120 MW campus

Claim classification: Not yet assigned

Status date: 2025

Open source 1 →

approved

New plan announced for the Armory tech hub and data center

Claim classification: Not yet assigned

Status date: 2026-01-16

Open source 1 →

approved

Five-hour conditional use permit hearing before the Board of Aldermen ended without a decision; a citywide data center moratorium failed 7-8

Claim classification: Not yet assigned

Status date: 2026-03

Open source 1 →

approved

St. Louis Board of Public Service unanimously approved the conditional use permit

Claim classification: Not yet assigned

Status date: 2026-04-21

Open source 1 →

approved

St. Louis board allowed the data center to move forward with new rules

Claim classification: Not yet assigned

Status date: 2026-07-30

Open source 1 →

approved

Lawsuit filed challenging the approval

Claim classification: Not yet assigned

Status date: 2026-08-28

Open source 1 →

approved

Must be fully operational by the fourth quarter of 2028 under the permit

Claim classification: Not yet assigned

Status date: 2028-Q4

Open source 1 →

CONFLICTING

The project is credited with projected first-year tax revenue of $33.4 million to St. Louis Public Schools and $432.3 million over ten years, with the data center investment described as $1.5 billion while the wider Armory district is described as a $3 billion to $3.1 billion tech hub.

Key data: $33.4M first-year SLPS revenue; $432.3M over 10 years

Claim classification: official_estimate_or_forecast · Verification: conflicting_sources_preserved · Retrieved: 2026-09-13

Limitation: Investment figures conflict between the $1.5B data center and the $3B-$3.1B district totals.

Open source 1 →

approved

A St. Louis board allowed the data center near the Armory to move forward with new rules on 2026-07-30.

Key data: Allowed to proceed with new rules 2026-07-30

Claim classification: verified_outcome · Verification: source_backed_unverified · Retrieved: 2026-09-13

Status date: 2026-07-30

Limitation: Details of the new rules were not extracted in full.

Open source 1 →