Lyons Township was reassessed for 2026 and the median home assessment rose 25.1%, with 96.9% of the township's 38,177 homes going up. The Assessor's appeal window closed on September 3, 2026, and the Assessor has now decided nearly all of the 10,995 home appeals filed: 2,602 of the 10,965 decided (23.7%) won a reduction, counting each appeal once. The next chance is the Board of Review, whose Lyons window is open October 8 to November 6, 2026. Lyons covers La Grange, La Grange Park, Western Springs, Countryside, Hodgkins, Indian Head Park, Brookfield, Lyons, Summit, Justice, Willow Springs, Bridgeview and parts of Burr Ridge and Hinsdale.
The numbers
| Lyons Township, residential | |
|---|---|
| Homes reassessed | 38,177 |
| Median change, 2025 final to 2026 notice | +25.1% |
| Total assessed value change | +29.6% |
| Homes that went up | 96.9% |
| Median 2026 assessed value | $35,001 (about $350,000 market value) |
| Median 2025 composite tax rate | 10.19% of equalized value (6.6% to 14.2% by tax code) |
| 2026 Assessor home appeals | 10,995 filed; 2,602 of 10,965 decided won a reduction (23.7%) |
Total value rose more than the median (29.6% vs 25.1%), which means the increases were larger at the top of the market. Homes in Western Springs, Burr Ridge and Hinsdale should compare their increase against similar homes, not against the township figure.
What Lyons appeals did last year
County-published outcomes for all residential appeals in Lyons Township, tax year 2025, counted by appeal (a condominium building's units, decided together, count once):
| Venue | Appeals decided | Received a reduction | Average cut (winners) |
|---|---|---|---|
| Assessor | 4,162 | 480 (11.5%) | 8.5% |
| Board of Review | 6,545 | 2,590 (39.6%) | 7.4% |
The Board of Review reduced nearly two in five Lyons appeals last year, against about one in nine at the Assessor. In this year's reassessment the Assessor did better: 23.7% of decided home appeals won a reduction, with an average cut of 8.9% and a typical winning cut of about $5,050 of assessed value. If you filed with the Assessor in August, plan on filing again at the Board whether or not you hear back first; a Board appeal does not depend on the Assessor's answer. If you did not file in August, the Board is your only 2026 venue.
What to do while the Board window is open
- File by November 6. The Board of Review opens townships in groups after the Assessor certifies them, and its Lyons window is open now, October 8 to November 6, 2026; the deadlines page has every township's dates.
- Build the comparables now. The Board decides most residential appeals on paper, on uniformity: your assessed value per square foot against similar homes in your neighborhood code. Our free property check pulls them from the county's own data.
- Have the Assessor decision ready. If the Assessor reduces you, the Board appeal argues from the reduced number; if it does not, the Board is a fresh look.
- Check exemptions on the October 1 bill. A missing Homeowner or Senior exemption is a Certificate of Error, separate from the appeal.
Our fee is 25% of the first year's savings and nothing if there is no reduction. Enter your address to see your home against the ones around it, and we will file at the Board before Lyons closes on November 6.
