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Illinois data centre project: $18 billion campus gets first permit as neighbours say they learned about it too late

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TOI World Desk. (2026, September 19). Illinois data centre project: $18 billion campus gets first permit as neighbours say they learned about it too late. Times of India. https://timesofindia.indiatimes.com/world/us/illinois-issued-the-first-permit-for-an-18-billion-data-centre-campus-covering-up-to-472-acres-an-800000-sq-ft-first-building-moves-ahead-as-neighbours-say-they-learned-too-late-to-weigh-in/articleshow/134351461.cms

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Times of India · collected 2026-09-19 · by TOI World Desk

Quick Summary

The Village of Grayslake in Illinois has issued a building permit for an $18 billion data center project called Cornerstone by T5 Data Centres, which includes 6.7 million square feet of data centre space over seven to ten years. However, local residents have expressed concerns about insufficient public engagement before the approval and are worried about potential environmental impacts, water use, noise pollution, and wetlands disruption. Some neighbors claim they were unaware of the project's scale until it had already been approved, leading to legal challenges through a lawsuit filed by opponents.
Written by AI on 2026-09-19, from this article's own text only (the story summary below draws on all the coverage).

AI analysis

Story summary

The T5 Data Centres project, known as the Cornerstone development, has received its first building permit from Grayslake village in Illinois, marking a significant step towards construction. This massive data-centre campus is expected to involve up to $18 billion in private investment and cover approximately 6.7 million square feet over 7 to 10 years. However, local opposition has emerged with residents claiming they were not adequately informed before key approvals were granted. The project, located on land along Peterson Road, initially had plans for a larger development of up to 473 acres and 10.1 million square feet but was scaled back. The Lake County Data Centre Opposition Coalition represents some of these concerned residents who feel the process lacked transparency and community engagement.

Written for “Illinois Data Center Project Permit” on 2026-11-01, grounded in this article and the 0 other(s) covering the same event.

Story

📰 Illinois Data Center Project Permit
Technology · 1 article(s) covering the same event.

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Claims extracted
45
sentences that state something as happening or true
Uncertain
11%
5 of 45 hedged ("reportedly", "may", "according to")
Leaning
Leans left
of the writing, not the subject · beta estimate
Publisher signals
59/100
Times of India's corrections and hedging, across everything collected from it. Not a measure of accuracy.
Outlets on this story
1
Technology
Same framing elsewhere
1
articles that frame the event the way this one does
Analyzed 2026-09-19 · how these are computed

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Article leaning vs. publisher reliability
Source leaning vs. consistency

Publisher

Times of India · 3816 article(s) · 2 correction(s) detected
Running correction rate · 2 correction(s)

Who wrote this

TOI World Desk
1254 article(s) here · 1 carrying a prediction
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Topics

CBS CBS Chicago Grayslake Illinois the Lake County Data Centre Opposition Coalition

Subjects

Grayslake GPE · 2× Baum PERSON · 1× CBS ORG · 1× CBS Chicago ORG · 1× Hannah Harris PERSON · 1× Illinois GPE · 1× Rob Baum PERSON · 1× T5 Data Centres ORG · 1× the Daily Herald ORG · 1× the Lake County Data Centre Opposition Coalition ORG · 1×

Narrative

The larger development is expected to involve as much as $18 billion in private investment, but the project has also triggered opposition from residents who say they were not given a meaningful opportunity to weigh in before approvals were granted.
framing: assertive · carried by 1 article(s) · first seen 2026-09-19
🔮 The larger development is expected to involve as much as $18 billion in private investment, but the project has also triggered opposition from residents who say they were not given a meaningful opportunity to weigh in before approvals were granted.

Claims (45 extracted, 5 hedged)

A massive data-centre campus planned in Grayslake, Illinois, has moved a step closer to construction after the village issued its first building permit, paving the way for an 800,000-square-foot facility. asserted
village → plan → facility
The larger development is expected to involve as much as $18 billion in private investment, but the project has also triggered opposition from residents who say they were not given a meaningful opportunity to weigh in before approvals were granted. asserted
approvals → expect → opportunity
The T5 Data Centres project, known as the Cornerstone development, is planned on land along Peterson Road in Grayslake. asserted
project → know → Grayslake
The latest plans call for about 6.7 million square feet of data-centre space to be built over 7 to 10 years. asserted
feet → call → years
Earlier approvals allowed for a larger development of up to about 473 acres and as much as 10.1 million square feet, according to village documents. uncertain
approvals → allow → documents
The village said the initial permit marks the operational start of the multibillion-dollar campus, with site work moving forward. asserted
work → say → campus
Neighbours say they found out too late asserted
they → say → ?
While the village and developer have promoted the project as a major economic investment, some nearby residents say they were unaware of the scale of the development until after key approvals had already been granted. asserted
approvals → promote → development
CBS Chicago reported that residents living close to the future data centre said they did not realise what was planned until the project had already been approved. asserted
project → report → centre
Rob Baum, whose family has owned property near the site for three generations, said he had believed the land was simply farmland and was surprised by the scale of the planned construction. asserted
land → own → construction
"This was all farm field," he said. asserted
he → say → ?
"My uncle owns like five acres back there. asserted
uncle → own → acres
It seemed like they kinda snuck it under the table a little bit," Baum said. asserted
Baum → seem → table
Hannah Harris, another resident, told CBS that residents did not understand that the project was being approved because of what she described as "ambiguous language." asserted
she → tell → language
She said she began attending village meetings after learning more about the development, but by then the project had already received approval. asserted
project → say → approval
The concerns extend beyond the size of the buildings. asserted
concerns → extend → buildings
Residents have raised questions about potential environmental effects, water consumption, electricity demand, noise and wetlands around the site. asserted
Residents → raise → site
The opposition has also moved into the legal arena. asserted
opposition → move → arena
A lawsuit filed by opponents seeks to challenge the village's approvals, while residents have organised through the Lake County Data Centre Opposition Coalition. asserted
residents → file → Coalition
Earlier reporting by the Daily Herald said opponents argued that the public hearings surrounding the approvals were inadequate and that the village did not commission third-party studies to support some of its conclusions. asserted
village → say → conclusions
Those are allegations made by opponents and remain subject to the legal process. asserted
Those → make → process
What the village and T5 say T5 Data Centres has defended the development and said it intends to continue engaging with residents. asserted
it → say → residents
Pete Marin, CEO and chairman of T5, said the company was committed to incorporating community input. asserted
company → say → input
He pointed to the company's decision to voluntarily withdraw an application related to the remediation of local wetlands after hearing concerns from residents. asserted
He → point → residents
T5 has also said it is working with the village on standards involving noise, water and electricity use. asserted
it → say → use
The company has said the project is expected to generate about $1.4 billion in property tax and permit-fee revenue over 20 years. asserted
project → say → years
The Village of Grayslake has similarly emphasised the financial impact. asserted
Village → emphasise → impact
According to village officials, the project is moving forward without local tax incentives, exemptions or tax-increment financing subsidies. uncertain
project → accord → incentives
The village estimates the campus could generate approximately $1.4 billion in property tax revenue for local taxing bodies over its first 20 years. uncertain
campus → estimate → years
The village currently operates with a balanced budget and no municipal debt, officials said, meaning the additional revenue could potentially support infrastructure, parks, trails, schools and other community projects rather than being used to pay existing municipal debt. uncertain
revenue → operate → debt
Water use, power and environmental questions Data centres have attracted increasing attention in the US because of their electricity and water requirements, particularly as artificial intelligence drives demand for computing capacity. asserted
intelligence → attract → capacity
Grayslake officials say the planned campus will use closed-loop cooling systems and estimate that an average data-centre building would consume around 2,500 to 3,500 gallons of water a day. asserted
building → say → water
For the full 6.75-million-square-foot campus, the village estimates total water use at approximately 50,000 gallons per day. asserted
village → estimate → day
The developer is also expected to fund the electrical infrastructure the campus requires, including an electrical substation on the property, according to the village. uncertain
campus → expect → village
The village has stressed that the permit does not exempt the project from environmental or other regulatory requirements. asserted
permit → stress → requirements
The facilities will remain subject to local, state and federal rules covering issues including stormwater, sound, lighting, sewer discharges, air emissions and water use. asserted
facilities → remain → stormwater
Wetlands have nevertheless remained a point of contention. asserted
Wetlands → remain → contention
T5 previously sought permission to remediate isolated wetlands by replacing them elsewhere, but later withdrew that application after concerns were raised. asserted
concerns → seek → application
The company has said the decision followed community feedback. asserted
decision → say → feedback
A major development still facing scrutiny The first 800,000-square-foot permit does not mean the entire campus will appear at once. asserted
campus → face → scrutiny
…and 5 more, not listed.
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