Kasey Fowler-Finn, St. Louis University professor
Data center noise is concentrated in low frequencies, making it sound like a hum that stands out from mid- to high frequency city noise
St. Louis Midtown Data Center
A proposed Midtown data center in St. Louis prompted residents and organizations to file a lawsuit against the project. It is reported, as reported September 17, 2026.
How much water it would use and who would use it have not been disclosed.
How to read this page. Every fact links to the source it rests on; a number in brackets is its place in the source list. A figure no source gives reads Not disclosed, and nothing is estimated. Where sources give different figures, each is shown with who gave it, and another source's figure never stands in for the record's own. Entries are added and never overwritten; corrections are listed under What happened.
What is known
Each figure as its source gave it. The number in brackets is its place in the source list.
- Land
- 11 acres
- third party estimate [2]
- Power it would draw
- 300 MW
- third party estimate [3]
- Water
- Not disclosed
- Who leads it
- Not disclosed
- Who would use it
- Not disclosed
- Jobs once it runs
- Not disclosed
- Tax each year
- Not disclosed
- Where its power comes from
- 50% renewable energy within 5 years
- as stated by the source [2]
Every field, with who said it and when (Researcher view)
Impact figures
| Field | Value | Who says so | Source | Last verified |
|---|---|---|---|---|
| How much power it needs | 300 MW | third party estimate | [3] stltoday.com | September 25, 2026 |
| How much water it would use | Not disclosed | |||
| How loud it would be | Not disclosed | |||
| Jobs once it runs | Not disclosed | |||
| Tax it would pay each year | Not disclosed |
The record's fields
| Field | Value | Who says so | Source | Last verified |
|---|---|---|---|---|
| Who is building it | Not disclosed | |||
| Who is constructing it | Not disclosed | |||
| How much land | 11 acres | third party estimate | [2] independent.co.uk | September 25, 2026 |
| Where its power comes from | 50% renewable energy within 5 years | as stated by the source | [2] independent.co.uk | September 25, 2026 |
| Grid connection | Not disclosed | |||
| How it is cooled | Not disclosed |
The developer's figure is what the company said; what a permit allows is the ceiling a permit sets; measured means observed. Water is in gallons a day or a year, whichever the source stated; a tax claim given as a range shows both ends, each linked to the source that gave it.
Still not public, and where it would show up
The record adds each the day a source gives it. Why these documents.
- Water useA state water right filing or a water supply agreement.
- Who would use itA lease announcement or a tenant named in a filing.
- Who is behind itA land record, a zoning application or a company's own announcement.
- Jobs and taxAn incentive agreement, a county's economic development filing or a fiscal note.
What happened
-
(source date; the content gives no date of its own)
Armory data center in Midtown is approved before new St. Louis regulations and is regulated by conditional use permit with different sound policies [4]
-
(source date; the content gives no date of its own)
Permit upheld by Board of Adjustment in July [2]
-
· Status: rumored (source date; the content gives no date of its own)
Developer David Lambiaso filed suit against the city's Board of Adjustment challenging two conditions imposed on the data center construction [1]
-
(source date; the content gives no date of its own)
Renewable energy must power 50% of facility in first five years, 100% within 10 years [5]
-
(source date; the content gives no date of its own)
Construction expected to begin August 2027 and be completed by late 2029 [5]
-
· Status: approved (source date; the content gives no date of its own)
Land Clearance for Redevelopment Authority approved community benefit plan for TerraWatt data center at 3728 Market Street [5]
The full St. Louis Midtown Data Center timeline, in order
2 corrections to this record
Every correction, with its reason
-
· the draft of a reference figures row
The record could not read this figure's source: the page answered HTTP 403, so no text of it reached the classifier, which scored card 12140 from the headline alone, and the number came from the headline; published by the bulk approve of 2026-09-25. A reference figure needs a source the record read: returned to draft, off every page, until a readable source that states it is cited (docs/batch-unread-figures-0929.md). The old and new text.
-
· the kind of source of a history entry
The source was labeled with the Google News search that found it; it now carries its outlet's tier (the record's rules of 2026-09-23). The link did not change. The day's label corrections.
Every correction on the record is on the corrections page.
What was said
Data center noise increases cortisol, cardiovascular risk, decreases cognitive functioning especially in children, and can delay healing in hospital settings
Every statement about data centers in Missouri, by speaker
4 more statements on this page
Kasey Fowler-Finn, St. Louis University professor
Low frequency hum from a data center can travel 800 feet or further, compared to traffic sound at 300 feet
Kasey Fowler-Finn, St. Louis University professor
Greatest area of impact from large data centers is 3,000 feet, about half a mile
St. Louis University professor
Fowler Finn says 600 foot setbacks in St. Louis regulations are woefully insufficient because most severe impacts fall within 3,000 feet
The site
Where in St. Louis is not in the public record. The pin marks the center of St. Louis, not a building, and the outline is St. Louis city.
Tap a pin for the data center, the parcel for its record
- This record: Proposed, ringed
- data center
- Dashed edge: the exact site is not in the public record
- Smaller pins: 17 other published records in Missouri
Details
- this record's location, ringed
- parcel outline, from the county parcel record
- city limits, U.S. Census Bureau, on a town level record
- county boundary
The other pins are the published projects in the same state, each in its stage color. The imagery beneath is the USGS national orthoimagery, public domain, shown so the land around the site can be read.
- Where
- St. Louis, St. Louis city, Missouri
- How exactly it is located
- Town level, the center of the city
- The parcel
- No parcel outline in the public record
- Nearest homes
- Not computed for a record placed at a place center
- Nearest records
- Nearest records are not computed for a record placed at the center of its town.
Questions about this project
5 questions answered from the record
How big is St. Louis Midtown Data Center?
-
The record has 2 measures of its size: 300 MW (third party estimate, source) and 11 acres (third party estimate, source). Each figure names who gave it and links to the source.
Who is building St. Louis Midtown Data Center?
-
Not disclosed. No source on file names the developer. The sources read for this record are listed under Sources.
How much power and water does St. Louis Midtown Data Center say it needs?
-
Power: 300 MW (third party estimate, source). Water: not disclosed by any source on file.
Where does St. Louis Midtown Data Center stand today?
-
It is reported, as reported September 17, 2026. The newest entry, reported September 24, 2026: Armory data center in Midtown is approved before new St. Louis regulations and is regulated by conditional use permit with different sound policies [4].
What has St. Louis or St. Louis city decided about it?
-
No decision by St. Louis or St. Louis city about data centers is on the record. The St. Louis city page and the Missouri scorecard list every rated row the day a person publishes one.
Sources
Reporting
- Developer behind controversial data center near Armory sues St. Louis, St Louis Public Radio, September 17, 2026, local outlet
- Data center developer sues city after requiring company to supply renewable energy on site - The Independent, The Independent, September 17, 2026, local outlet
- 'Pay to play'? Donation adds new controversy to Ferguson data center vote, St Louis Post-Dispatch, September 22, 2026, local outlet
- How data center noise is different from regular noise pollution, according to a St. Louis scientist, St Louis Public Radio, September 24, 2026, local outlet
- St. Louis OKs plan for Midtown data center estimated to generate $445M in tax revenue over 10 years, St Louis Public Radio, September 15, 2026, local outlet
- Data centers across the region move forward, St Louis Post-Dispatch, September 16, 2026, local outlet
- Midtown data center wins key approval from St. Louis Board of Public Service, www.stlmag.com, April 21, 2026, local outlet
- Residents, organizations file lawsuit against proposed Midtown data center - KMOV, KMOV, August 29, 2026, local outlet
8 sources on file.
Cite this record
Data Center Record, "St. Louis Midtown Data Center", https://datacenterrecord.org/projects/st-louis-midtown-data-center-mo, last verified September 25, 2026.
Cite this page
Data Center Record, "St. Louis Midtown Data Center", https://datacenterrecord.org/projects/st-louis-midtown-data-center-mo. Data: Data Center Record, datacenterrecord.org, CC BY 4.0.
The structured rows are CC BY 4.0. Link to this page; that is what turns a reuse into a citation. Prose stays under copyright.
For researchers
- Slug
- st-louis-midtown-data-center-mo
- Status value
- rumored
- Stage
- Proposed
- Tier
- skeleton
- Tags
- skeleton
- Place id
- us/mo/st-louis-city/st-louis
- Coordinates
- 38.6357896, -90.2451124
- Location precision
- city
- Location source
- City centroid (St. Louis), U.S. Census Bureau TIGERweb, public domain, placed at city level
- Coordinate source
- tigerweb city centroid
- Location source number
- Not disclosed
- Location last verified
- September 17, 2026
- EPA registry id
- Not disclosed
- Use type values
- not_disclosed
- Tenancy value
- not_disclosed
- Cooling type value
- not_disclosed
- Capacity basis
- third_party_estimate
- Water basis
- not_disclosed, gallons_per_day
- Acreage basis
- third_party_estimate
- Interconnection value
- not_disclosed
- Capacity, if disclosed
- 300 MW, third party estimate
- Rating of the county's rows
- Not disclosed
- Published
- 2026-09-05
- Last verified
- 2026-09-25