Cook County Value

4123 Elm Ave 102 Lyons, IL 60534

10 bed / 5 bath, 4,554 sqft, built 1921, in Lyons. Assessor market value for 2026: $540,000.

Cook County account 18011160020000

Assessor market value
$540,000
Tax year 2026 · before exemptions; the assessed value on your notice is 10% of it
Living area
4,554 sqft
$119 per sqft
Year built
1921
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 60534 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 31.7% from $410,000 in 2025 to $540,000 in 2026.
  • Assessor market value per square footThe current public record shows about $119 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 60534.
  • Neighborhood value signalAmong 2,705 residential records in the same neighborhood, the average assessor market value is about $194 per square foot.
  • Area year-over-year signalNearby residential records with prior-year values moved about +17.4% on average.

Comparable assessments

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

  • 4545 Center Ave Lyons, IL 60534
    4,192 sqft | $134/sqft | built 1918 | 8% smaller (4,192 vs 4,554 sqft); Similar age (1918 vs 1921); Similar lot size (8,316 vs 8,320 sqft)
    $560,000
  • 7847 Ogden Ave Lyons, IL 60534
    4,280 sqft | $91/sqft | built 1922 | 6% smaller (4,280 vs 4,554 sqft); Similar age (1922 vs 1921); Lot 15% smaller (7,084 vs 8,320 sqft)
    $390,000
  • 8039 White Ave Lyons, IL 60534
    4,191 sqft | $119/sqft | built 1923 | 8% smaller (4,191 vs 4,554 sqft); Similar age (1923 vs 1921); Same quality (Average)
    $500,000
  • 4441 Prescott Ave Lyons, IL 60534
    4,368 sqft | $110/sqft | built 1927 | Similar size (4,368 vs 4,554 sqft); Same quality (Average); Same neighborhood
    $480,000
  • 4238 Joliet Ave Lyons, IL 60534
    4,298 sqft | $88/sqft | built 1919 | 6% smaller (4,298 vs 4,554 sqft); Similar age (1919 vs 1921); Same quality (Average)
    $380,010

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 31.7% in 2026 from 2025.

Assessor market value by tax year, with the change from the previous year listed
Tax yearAssessor market valueChangeChange %
2026$540,000+$130,000+31.7%
2025$410,000$00.0%
2024$410,000$00.0%
2023$410,000+$5,630+1.4%
2022$404,370$00.0%
2021$404,370$00.0%
2020$404,370——
6-year total+$135,630+33.5%