Illinois HB 4319: DATA CENTER-PROPERTY RTS

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104TH GENERAL ASSEMBLY 
State of Illinois 
2025 and 2026
HB4319

Introduced 1/14/2026, by Rep. Jed Davis 

SYNOPSIS AS INTRODUCED:

New Act

 Creates the Property Owner Protection from Data Center Impacts Act. Makes a property owner eligible for compensation for harm materially and proximately caused by the construction or operation of a data center if the affected property is located within 1,000 feet of the data center and if the data center has caused measurable reduction in fair market value, reduction in business revenue, or adverse environmental or operational impacts, such as noise, vibration, traffic, stormwater burden, or lighting. Creates an appraisal procedure to evaluate the data center's impact on the property owner. Provides a compensation formula to determine real property compensation and business loss compensation. Authorizes a property owner to bring a civil action seeking specified damages and attorney's fees and costs. Creates other remedies for enforcement of the Act. Makes legislative findings. Limits the concurrent exercise of home rule powers.

LRB104 17548 JRC 30976 b

A BILL FOR

HB4319LRB104 17548 JRC 30976 b

1 AN ACT concerning regulation.

2 Be it enacted by the People of the State of Illinois, 

3represented in the General Assembly:

4 Section 1. Short title. This Act may be cited as the 

5Property Owner Protection from Data Center Impacts Act.

6 Section 5. Findings and purpose.

7 (a) The General Assembly finds that:

8 (1) Data center developments may substantially impair 

9 the use, enjoyment, and marketability of nearby 

10 residential and commercial properties.

11 (2) Fair market value alone does not provide adequate 

12 compensation for the significant burden placed on affected 

13 homeown