Cook County Value

1140 118th St Lemont, IL 60439

3 bed / 2 bath, 1,854 sqft, built 1970, in Lemont. Assessor market value for 2026: $480,010.

Cook County account 22214040070000

Assessor market value
$480,010
Tax year 2026 · before exemptions; the assessed value on your notice is 10% of it
Living area
1,854 sqft
$259 per sqft
Year built
1970
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 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 33.3% from $360,010 in 2025 to $480,010 in 2026.
  • Assessor market value per square footThe current public record shows about $259 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 636 residential records in the same neighborhood, the average assessor market value is about $286 per square foot.
  • Area year-over-year signalNearby residential records with prior-year values moved about +33.3% on average.

Comparable assessments

Similar public appraisal records selected for this property's equity comparison.

  • 1220 117th St Lemont, IL 60439
    1,866 sqft | $263/sqft | built 1970 | Similar size (1,866 vs 1,854 sqft); Built same year (1970); Similar lot size (26,510 vs 28,300 sqft)
    $490,000
  • 11299 Bell Rd Lemont, IL 60439
    1,727 sqft | $261/sqft | built 1967 | 7% smaller (1,727 vs 1,854 sqft); Similar age (1967 vs 1970); Similar lot size (29,969 vs 28,300 sqft)
    $450,000
  • 11370 Dineff Rd Lemont, IL 60439
    1,716 sqft | $268/sqft | built 1978 | 7% smaller (1,716 vs 1,854 sqft); Similar lot size (28,967 vs 28,300 sqft); Same quality (Average)
    $460,000
  • 11930 Walker Rd Lemont, IL 60439
    1,791 sqft | $251/sqft | built 1958 | Similar size (1,791 vs 1,854 sqft); Similar lot size (28,793 vs 28,300 sqft); Same quality (Average)
    $450,000
  • 12001 Pine Ct Lemont, IL 60439
    1,726 sqft | $362/sqft | built 1974 | 7% smaller (1,726 vs 1,854 sqft); Similar age (1974 vs 1970); Similar lot size (30,862 vs 28,300 sqft)
    $624,800

Recent comparable sales

Sales selected by similarity to the subject property.

Public appraisal comparison for 2026. Prepared . Appraisal source: Cook County Assessor's Office. Sales data checked in this snapshot: . Showing the last prepared sales evidence while recent sales are refreshed. Matches consider available size, age, location and property characteristics. How comparisons work.

Value history

Up 33.3% in 2026 from 2025.

Assessor market value by tax year, with the change from the previous year listed
Tax yearAssessor market valueChangeChange %
2026$480,010+$120,000+33.3%
2025$360,010$00.0%
2024$360,010$00.0%
2023$360,010+$79,480+28.3%
2022$280,530$00.0%
2021$280,530$00.0%
2020$280,530——
6-year total+$199,480+71.1%