Local Rules for Data Center Siting

Summary#

HB 5818, “LOC GOVT-DATA CENTER,” would amend the Counties Code and Illinois Municipal Code by adding local powers over data-center construction and siting. Its apparent goal is to let counties and municipalities set standards addressing where data centers are built and their effects on water and noise; the bill does not state a separate goal. It is introduced and is not law.

  • Counties could set construction standards, including limits on building size and height and on the number of data centers in a geographic area.
  • Counties could regulate siting in unincorporated areas outside a municipality’s zoning jurisdiction, and set standards for water use, water protection and noise.
  • Municipalities could regulate siting within their zoning jurisdiction and the surrounding 1.5-mile radius, and set standards for water use, water protection and noise.
  • Before a county board or municipality makes a siting decision, it must hold at least one public hearing no more than 30 days beforehand and publish notice in a local newspaper.
  • County zoning-ordinance provisions about data centers already in effect could remain in effect.

What it means for you#

  • Counties and municipalities: They would gain the powers described above, but the bill does not require them to use those powers or adopt any particular standards.
  • Data-center developers and operators: They may face local construction or siting standards if a county or municipality adopts them. The bill does not itself ban data centers or say how existing facilities are affected.
  • Residents: A proposed siting decision would require a public hearing and newspaper notice. The bill does not require a particular amount of advance notice beyond holding the hearing within the 30 days before the decision.
  • General public: The bill does not directly change taxes, fees, or benefits.

Money#

No cost information is in the available material.

  • The bill gives local governments new regulatory powers but does not specify funding, staffing, fees, or a cost estimate.
  • It does not appropriate money or set fines.

What is unclear#

  • The bill does not define “reasonable” noise standards or explain how local governments should set them.
  • It does not set application rules, decision criteria, timelines, appeals, or reporting requirements.
  • It is unclear how the municipal 1.5-mile radius would work where it overlaps another municipality or county authority.
  • The supplied material does not include the existing code provisions, so I could not verify how these new sections would interact with current local powers or other zoning rules.
  • The bill text supplied gives no effective date or clear rule for applying new standards to existing facilities.

Case for#

  • A possible argument for the bill is that local governments could tailor data-center rules to local water supplies, noise concerns, and land-use needs.
  • Public hearings and published notice could give residents a chance to learn about proposed siting decisions.
  • Counties could address construction details such as building size and the number of facilities in an area, rather than only where a facility may be sited.

Case against#

  • The bill grants broad local discretion but does not set common standards for what limits are appropriate.
  • A public hearing and newspaper notice are required, but the bill does not set decision criteria or require responses to concerns raised.
  • The bill does not explain how overlapping county and municipal powers would be resolved.