EdgeConneX Chicago Campus (CHI01 / CHI02), in order
What happened with this project, oldest first: the stages it reached, what the county and its cities decided, and every dated step on the record. Each entry links its source.
8 events, January 1, 2026 to September 23, 2026. Also on the record, under the month each belongs to: 19 lines that are not events of their own. The facts, newest first: the record; the place: Illinois.
A plain date is the day it happened, as the source states it, or as the line's own sentence states it ("voted on July 6"), which is where the line sits even when it was filed later. "Reported" and a date is the day a source published a line that carries no date of its own. Those lines, and lines that describe rather than report an act, sit under their month rather than on the timeline, with what was said and the figures other sources gave. Every timeline on the site reads its lines by this one rule. How dates are read.
Stages
2026 8 events
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(the year its own sentence names; filed under Aug 29, 2026)
Decision · Cook County (county)
More than a dozen data centers near O'Hare airport received local property tax breaks in 2026. abc7chicago.com (opens in a new tab)
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(the month its own sentence names; no day is given; filed under Aug 1, 2026)
Decision · Chicago (city)
Johnson's executive order last month added some regulations surrounding noise and air pollution for data centers. blockclubchicago.org (opens in a new tab)
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(the month its own sentence names; no day is given; filed under Aug 13, 2026)
Decision · Chicago (city)
A city working group on sustainable data centers spent over a year and a half developing recommendations, with report released in July 2026 news.wttw.com (opens in a new tab)
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Also in July 2026: 2 lines that are not events of their own
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(source date; the content gives no date of its own)
Decision · Hoffman Estates (city)
Developer withdrew rezoning request for data center in Hoffman Estates capitolnewsillinois.com (opens in a new tab)
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(source date; the content gives no date of its own)
Decision · Hoffman Estates (city)
Karis Critical withdrew rezoning request for data center in Hoffman Estates datacenterdynamics.com (opens in a new tab)
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(the month its own sentence names; no day is given; filed under Aug 1, 2026)
Decision · Chicago (city)
Johnson created a task force in August via an executive order to establish a regulatory framework for data centers in Chicago. blockclubchicago.org (opens in a new tab)
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(the month its own sentence names; no day is given; filed under Sep 21, 2026)
Decision · Chicago (city)
Mayor Brandon Johnson issued an executive order last month to regulate data centers and called on the city council to pass a moratorium on new data centers thecentersquare.com (opens in a new tab)
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Also in August 2026: 9 lines that are not events of their own
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(source date; the content gives no date of its own)
Decision · Chicago (city)
Mayor Brandon Johnson called for a temporary moratorium on data centers cbsnews.com (opens in a new tab)
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(source date; the content gives no date of its own)
Decision · Chicago (city)
Chicago Mayor Brandon Johnson signed an executive order for stricter data center regulations cbsnews.com (opens in a new tab)
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(source date; the content gives no date of its own)
Decision · Cook County (county)
Mayor Brandon Johnson pushed new rules and moratorium on new data centers axios.com (opens in a new tab)
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(source date; the content gives no date of its own)
Decision · Chicago (city)
The working group report recommended the city create a new program for issuing noise and air pollution permits and enhancing environmental review news.wttw.com (opens in a new tab)
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(source date; the content gives no date of its own)
Decision · Chicago (city)
Mayor Brandon Johnson issued an executive order calling on Chicago City Council to pause new data center construction news.wttw.com (opens in a new tab)
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(source date; the content gives no date of its own)
Decision · Chicago (city)
Chicago City Council voted near unanimously on an ordinance incentivizing data center development news.wttw.com (opens in a new tab)
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(source date; the content gives no date of its own)
Decision · Cook County (county)
Mayor Brandon Johnson was pressured by anti data center activists at a rally chicagotribune.com (opens in a new tab)
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(source date; the content gives no date of its own)
Decision · Cicero (city)
Cicero trustees passed a resolution opposing data center development at Hawthorne in neighboring Stickney chicago.suntimes.com (opens in a new tab)
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(source date; the content gives no date of its own)
Decision · Stickney (city)
Stickney board of trustees voted unanimously to block any data center proposals with a moratorium on zoning changes and approvals for data centers chicago.suntimes.com (opens in a new tab)
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(content date)
Decision · Chicago (city)
Alderman Bill Conway introduced an ordinance that would add additional regulations for data centers and ban them in some districts, though it stops short of a citywide moratorium. blockclubchicago.org (opens in a new tab)
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(content date)
Decision · Chicago (city)
Mayor Brandon Johnson introduced an ordinance to Chicago City Council to pause construction of any new data center for 12 months and block material expansion of existing ones. blockclubchicago.org (opens in a new tab)
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(content date)
Decision · Chicago (city)
Chicago Mayor Brandon Johnson proposed a one year moratorium on new data center construction to develop new regulations on zoning, water and power usage, and quality of life for residents. nbcchicago.com (opens in a new tab)
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Also in September 2026: 7 lines that are not events of their own
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(source date; the content gives no date of its own)
Decision · Chicago (city)
Mayor Johnson called for a temporary moratorium on new data centers springfieldnewssun.com (opens in a new tab)
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(source date; the content gives no date of its own)
Decision · Chicago (city)
Mayor Brandon Johnson signed an executive order creating stricter data center regulations and oversight springfieldnewssun.com (opens in a new tab)
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(source date; the content gives no date of its own)
Decision · Cicero (city)
Chicagoland suburbs suing data center companies; Cicero mobilizing legal challenge to Digital Realty Hawthorne development therealdeal.com (opens in a new tab)
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(source date; the content gives no date of its own)
Decision · Chicago (city)
Chicago executive order provided for enhanced evaluation of air pollution control permits, data center specific noise rules, and cross departmental review process for planned developments including data centers thecentersquare.com (opens in a new tab)
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(source date; the content gives no date of its own)
Decision · Chicago (city)
Chicago Mayor Brandon Johnson announces a city wide temporary moratorium on data center development and expansion for 12 months while the city develops a comprehensive regulatory framework talkingpointsmemo.com (opens in a new tab)
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(source date; the content gives no date of its own)
Decision · Chicago (city)
Mayor Johnson's executive order last month called for a moratorium while the city develops a regulatory framework for data centers yahoo.com (opens in a new tab)
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(source date; the content gives no date of its own)
Decision · Chicago (city)
Chicago Mayor Brandon Johnson and aldermen Maria Hadden, Leni Manaa Hoppenworth and Lamont Robinson introduced an ordinance to pause data center development and material expansion for one year yahoo.com (opens in a new tab)
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Also in October 2026: 1 line that is not an event of its own
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(the day the page was read; it gives no date of its own)
Entry
Verified facility status from primary Illinois EPA permit, municipal zoning docket, or operator campus specification. [1]
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On the timeline: a stage change; an entry that reports an act on the day the source or its own sentence gives; and a decision, a published scorecard event on a row at or under the record's county, that reports an act. Under the months: a statement that names this record, a figure another source gave about it, matched by place and developer, an entry dated only by the day its source was published, and an entry or a decision that describes rather than reports an act. Each is on the record in its own right and keeps its own link.
For researchers
- Stage
- running
- Events on the timeline
- 8
- Under the months
- 19
- Stage changes
- 0
- Decisions
- 26
- Statements
- 0
- Figures
- 0
- Entries and decisions under the months
- 19