Open Now · Cook County Board of Review · Deadline: November 6, 2026
Lyons Township 2026 Property Tax Appeal Evidence Packet
Lyons Township is open at the Cook County Board of Review through November 6, 2026 (evidence deadline November 16, 2026). Single-family Class 2-03, 2-04, and 2-07 homes in La Grange, Western Springs, and Burr Ridge frequently show 12% to 22% building $/sq ft dispersion within the same Assessor neighborhood code.
Filing Agency Cook County Board of Review
Appeal Filing Deadline November 6, 2026
Supporting Evidence Due November 16, 2026
Assessor Township Code Code 21 (South & West Suburbs)
Communities & Neighborhoods Covered in Lyons Township
How Lyons Township Homeowners Win Assessment Reductions
When reviewing a residential appeal in Lyons Township, analysts at the Cook County Board of Review evaluate two primary statutory grounds:
- Lack of Uniformity: Comparing your home's Building Assessed Value per square foot ($/sq ft) against 3 to 6 similar properties in the exact same Assessor Neighborhood Code and Property Class (e.g., Class 2-03 one-story, Class 2-04 larger one-story, Class 2-05/2-06/2-07 two-story, Class 2-11 two-to-six flat, or Class 2-95 townhome).
- Overvaluation (Recent Comparable Sales): Demonstrating that recent arm's-length residential sales in your neighborhood support a lower fair market value than the Assessor's implied valuation.
With Lyons Township's typical composite tax rate of approximately 8.12% and the Cook County state equalization factor of 3.0355, every $5,000 reduction in Assessed Value lowers your annual property tax bill by roughly $1,232/year.