Chicago Mayor Brandon Johnson proposes one-year Chicago data center moratorium

The proposed freeze in a top-tier connectivity hub highlights growing tension between digital infrastructure needs and municipal resource management. For streaming providers, this regulatory shift could increase colocation costs or delay edge capacity expansions in the Midwest as power and water usage come under stricter scrutiny. The move mirrors similar restrictions in Aurora and other tech hubs, suggesting that the era of rapid, unregulated data center growth is ending in favor of community-led utility caps. Industry observers should monitor whether the Midwest Data Center Coalition can negotiate exemptions for projects already in the planning pipeline.

Chicago's proposed moratorium ordinance, introduced on September 23, 2026, would pause not only new data center construction but also the material expansion of existing facilities for 12 months, giving the city's Data Centers Task Force time to build a permanent regulatory framework. The ordinance was co-sponsored by Aldermen Maria Hadden, Leni Manaa-Hoppenworth, and Lamont Robinson alongside Mayor Johnson, signaling broad council support for the pause. The task force, established by Johnson's August 2026 executive order, is co-chaired by the Mayor's Chief Sustainability Officer and Chief of Policy and includes representatives from the Departments of Buildings, Environment, Planning and Development, Technology and Innovation, and Water Management.

The moratorium builds on an executive order Johnson signed in August 2026 that imposed immediate interim safeguards, including enhanced evaluation of air pollution control permits for diesel backup generators, new data-center-specific noise rules for cooling equipment and mechanical systems, and a cross-departmental review process for Planned Developments that include data centers. That order assessed electricity demand, water use, generator impacts, air emissions, and cumulative environmental burdens. Chicago currently hosts approximately 39 data centers, most built under regulatory frameworks that did not address the scale and energy intensity of modern facilities.

Separately, 34th Ward Alderman William Conway has proposed his own data center regulations that would ban data centers in certain commercial corridors and parts of Downtown while requiring a Planned Development zoning process for new facilities in other areas, triggering community meetings and Chicago Plan Commission approval. Conway has indicated he does not want to wait for the mayor's task force to complete its work before acting, suggesting potential legislative competition over which regulatory approach the City Council ultimately adopts.