Chicago Quantum Park, 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.
4 events, January 1, 2026 to August 21, 2026. Also on the record, under the month each belongs to: 17 statements and 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 4 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
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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
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Also in July 2026: 1 statement and 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
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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
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(said in the source itself)
Statement · FOX Chicago
Illinois Quantum and Microelectronics Park focuses on quantum technology FOX 32 Chicago local outlet
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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
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(source date; the content gives no date of its own)
reported
Hawthorne Race Course, a 100+ acre site at 3501 S. Laramie Ave. in Stickney, closed after 135 years of horse racing, with last races on July 19, 2026 [1]
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Also in August 2026: 6 statements and 10 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
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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
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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
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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
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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
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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
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(said in the source itself)
Statement · Brad Tietz, state policy director of the Data Center Coalition
Brad Tietz, state policy director of the Data Center Coalition, said he is hopeful the mayor's directive will separate responsible water and energy stewards from those who are not live-news-wttw.pantheonsite.io local outlet
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(said in the source itself)
Statement · Brandon Johnson, Mayor of Chicago
Mayor Johnson said Chicago will not be passively shaped by the data center industry and will actively set the terms for how technological development occurs live-news-wttw.pantheonsite.io local outlet
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(said in the source itself)
Statement · Angela Tovar, commissioner of Chicago's Department of Environment
Angela Tovar, commissioner of Chicago's Department of Environment, said current policies do not reflect what modern data centers look like live-news-wttw.pantheonsite.io local outlet
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(said in the source itself)
Statement · Jared Patton, project manager at Chicago's Department of Environment
Jared Patton, project manager at Chicago's Department of Environment, said the city wants to develop recommendations thoughtful about local context rather than copying other areas live-news-wttw.pantheonsite.io local outlet
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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
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(source date; the content gives no date of its own)
Entry
Allimac 2023 LLC, identified as Digital Realty, agreed to acquire Hawthorne Race Course for $90 million, with sale expected to close September 1, 2026 [1]
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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
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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
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(said in the source itself)
Statement · Mitch Milenkovic, Mayor of Stickney
Mitch Milenkovic, Mayor of Stickney, stated opposition to a data center at Hawthorne Race Course, citing water and power demand, noise, and nuisances chicago.suntimes.com local outlet
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(said in the source itself)
Statement · Brandon Johnson, Mayor of Chicago
Brandon Johnson, Mayor of Chicago, asked the City Council to pass a moratorium on data center facilities chicago.suntimes.com local outlet
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Also in September 2026: 10 statements and 7 lines that are not events of their own
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(said in the source itself)
Statement · Austin Child, Chicago resident
Austin Child said build data centers only in communities where median home price is above $3 million, make them build their own power source not connected to public grid, give no tax breaks, and enact strict environmental protections. Chicago Sun-Times local outlet
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(said in the source itself)
Statement · Christine Bock, Chicago resident
Christine Bock said if data centers make money they should pay their own way with no corporate tax benefits, discounts, or dumping. Chicago Sun-Times local outlet
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(said in the source itself)
Statement · Adam Agosto, Chicago resident
Adam Agosto said if data centers can supply their own power to regulatory spec they could be built but must address infrastructural and environmental concerns and taxpayers and ComEd customers should not bear any costs. Chicago Sun-Times local outlet
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(said in the source itself)
Statement · David Mansfield, Chicago resident
David Mansfield said data centers need to be built but there needs to be better methodology for where and how. Chicago Sun-Times local outlet
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(said in the source itself)
Statement · Alyce Langreder-Garcia, Chicago resident
Alyce Langreder Garcia said data centers should not be built, especially in heavily populated areas, and statistics are coming in about adverse impacts on wildlife, people, businesses, communities and natural resources. Chicago Sun-Times local outlet
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(said in the source itself)
Statement · Drew Pekala, Chicago resident
Drew Pekala said we need to keep up with the rest of the world and that if we don't build data centers then we fall behind as a society and as a country. Chicago Sun-Times local outlet
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(said in the source itself)
Statement · Sergio Antonio Cueto Tellez, Chicago resident
Sergio Antonio Cueto Tellez asked how people can think data centers are OK when natural resources are becoming scarce. Chicago Sun-Times local outlet
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(said in the source itself)
Statement · Deborah Bullwinkel, Chicago resident
Deborah Bullwinkel said Great Lakes are at risk of depletion and pollution, electricity rates will skyrocket, and data centers cause noise, light, air and water pollution, ruin wetlands and kill wildlife, and negatively impact property values. Chicago Sun-Times local outlet
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(said in the source itself)
Statement · Tim Patterson, Chicago resident
Tim Patterson said data centers should not be done and that Chicago needs to build something that will make life better for Chicagoans such as fixing deferred infrastructure maintenance instead. Chicago Sun-Times local outlet
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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
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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
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(said in the source itself)
Statement · Chicago Tribune Editorial Board
Illinois experiencing higher electric bills directly translated from datacenter electricity consumption Chicago Tribune local outlet
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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
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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
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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
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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
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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
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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
- Slug
- chicago-quantum-park-il
- Status value
- rumored
- Events on the timeline
- 4
- Under the months
- 36
- Stage changes
- 1
- Decisions
- 21
- Statements
- 17
- Figures
- 0
- Entries and decisions under the months
- 19