Cook County Value

431 S Spring Ave, La Grange, IL 60525

5 bed / 2 bath, 2,408 sqft, built 1906, in Lyons. Assessor market value for 2026: $1,010,010.

Cook County account 18043260070000

Assessor market value
$1,010,010
Tax year 2026 · before exemptions; the assessed value on your notice is 10% of it
Living area
2,408 sqft
$419 per sqft
Year built
1906
Average quality

Compare this assessment

Start with the county value and property facts, then review appraisal comps, recent sales, and prior-year changes to decide whether the assessment is worth challenging. The comps on this page are free to review; email sign-in is only used to save a printable report.

For nearby context, browse ZIP 60525 and Lyons assessment pages.

Local guide: Lyons Township 2026 Property Tax Appeal Guide.

Appeal deadlines

For Lyons, appeals to the Assessor closed . Board of Review dates for Lyons have not been published yet.

Deadline rule: Set by township: file with the Assessor by your township's last file date, and with the Board of Review while your township is open there. Evidence is reviewed by the Cook County Assessor's Office or, in a separate appeal, by the Cook County Board of Review. Dates checked against the official source.

Assessment snapshot

These public CCAO records highlight what may be worth checking before you file.

  • Assessment changeThe assessor market value increased 23.2% from $820,000 in 2025 to $1,010,010 in 2026.
  • Assessor market value per square footThe current public record shows about $419 per square foot before any comparable-property adjustments.
  • Nearby comparison areaThis page starts the equity review with public records for the Lyons neighborhood and ZIP 60525.
  • Neighborhood value signalAmong 932 residential records in the same neighborhood, the average assessor market value is about $390 per square foot.
  • Area year-over-year signalNearby residential records with prior-year values moved about +32.9% on average.

Comparable assessments

Showing 5 of the 8 similar homes in this property's equity comparison, from public appraisal records.

  • 341 S Stone Ave, La Grange, IL 60525
    2,448 sqft | $445/sqft | built 1908 | Similar size (2,448 vs 2,408 sqft); Similar age (1908 vs 1906); Similar lot size (10,125 vs 10,125 sqft)
    $1,090,010
  • 117 S Waiola Ave, La Grange, IL 60525
    2,530 sqft | $439/sqft | built 1903 | 5% larger (2,530 vs 2,408 sqft); Similar age (1903 vs 1906); Similar lot size (10,200 vs 10,125 sqft)
    $1,110,000
  • 40 S Spring Ave, La Grange, IL 60525
    2,320 sqft | $375/sqft | built 1902 | Similar size (2,320 vs 2,408 sqft); Similar age (1902 vs 1906); Similar lot size (10,200 vs 10,125 sqft)
    $870,000
  • 449 S Stone Ave, La Grange, IL 60525
    2,332 sqft | $377/sqft | built 1916 | Similar size (2,332 vs 2,408 sqft); Similar lot size (10,125 vs 10,125 sqft); Same quality (Average)
    $880,010
  • 321 S Brainard Ave, La Grange, IL 60525
    2,484 sqft | $378/sqft | built 1918 | Similar size (2,484 vs 2,408 sqft); Similar lot size (10,125 vs 10,125 sqft); Same quality (Average)
    $940,010

Recent comparable sales

No usable comparable sales are available in this data snapshot.

Public appraisal comparison for 2026. Prepared . Appraisal source: Cook County Assessor's Office. Sales data checked in this snapshot: . Matches consider available size, age, location and property characteristics. How comparisons work.

Value history

Up 23.2% in 2026 from 2025.

Assessor market value by tax year, with the change from the previous year listed
Tax yearAssessor market valueChangeChange %
2026$1,010,010+$190,010+23.2%
2025$820,000$00.0%
2024$820,000$00.0%
2023$820,000+$113,910+16.1%
2022$706,090$00.0%
2021$706,090+$100.0%
2020$706,080——
6-year total+$303,930+43.0%