Cook County Value

22 115th St Lemont, IL 60439

4 bed / 2 bath, 3,236 sqft, built 1980, in Lemont. Assessor market value for 2026: $820,010.

Cook County account 22241050110000

Assessor market value
$820,010
Tax year 2026 · before exemptions; the assessed value on your notice is 10% of it
Living area
3,236 sqft
$253 per sqft
Year built
1980

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 60439 and Lemont assessment pages.

Local guide: Lemont Township 2026 Property Tax Appeal Guide.

Appeal deadlines

For Lemont, appeals to the Assessor closed . Board of Review dates for Lemont 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 52.4% from $538,200 in 2025 to $820,010 in 2026.
  • Assessor market value per square footThe current public record shows about $253 per square foot before any comparable-property adjustments.
  • Nearby comparison areaThis page starts the equity review with public records for the Lemont neighborhood and ZIP 60439.
  • Neighborhood value signalAmong 321 residential records in the same neighborhood, the average assessor market value is about $244 per square foot.
  • Area year-over-year signalNearby residential records with prior-year values moved about +52.5% on average.

Comparable assessments

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

  • 5 Chestnut Lemont, IL 60439
    3,158 sqft | $244/sqft | built 1986 | Similar size (3,158 vs 3,236 sqft); Similar lot size (44,052 vs 42,732 sqft); Same bed/bath (4/2)
    $770,010
  • 4 Equestrian Way Lemont, IL 60439
    3,348 sqft | $236/sqft | built 1980 | Similar size (3,348 vs 3,236 sqft); Built same year (1980); Similar lot size (46,513 vs 42,732 sqft)
    $790,000
  • 79 Horseshoe Ln Lemont, IL 60439
    3,201 sqft | $237/sqft | built 1981 | Similar size (3,201 vs 3,236 sqft); Similar age (1981 vs 1980); Similar lot size (40,815 vs 42,732 sqft)
    $760,000
  • 18 Equestrian Way Lemont, IL 60439
    3,094 sqft | $252/sqft | built 1987 | Similar size (3,094 vs 3,236 sqft); Similar lot size (44,331 vs 42,732 sqft); Same bed/bath (4/2)
    $780,000
  • 7 Chestnut Lemont, IL 60439
    3,186 sqft | $251/sqft | built 1988 | Similar size (3,186 vs 3,236 sqft); Similar lot size (45,084 vs 42,732 sqft); Same neighborhood
    $800,010

Recent comparable sales

Sales selected by similarity to the subject property.

  • 1238 Acorn St Lemont, IL 60439
    2,802 sqft | $223/sqft | built 1990 | 13% size difference (2,802 sqft); Moderate age difference (10 years newer); Within 1 bedroom (3 vs 4)
    $625,000
  • 11 Cedar Ct Lemont, IL 60439
    2,722 sqft | $253/sqft | built 1990 | Moderate age difference (10 years newer); Same beds (4)
    $690,000

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 52.4% in 2026 from 2025.

Assessor market value by tax year, with the change from the previous year listed
Tax yearAssessor market valueChangeChange %
2026$820,010+$281,810+52.4%
2025$538,200$00.0%
2024$538,200−$51,800−8.8%
2023$590,000+$179,020+43.6%
2022$410,980−$38,340−8.5%
2021$449,320+$100.0%
2020$449,310——
6-year total+$370,700+82.5%