Cook County Value

1230 118th St Lemont, IL 60439

3 bed / 2 bath, 2,713 sqft, built 1999, in Lemont. Assessor market value for 2026: $680,000.

Cook County account 22214060090000

Assessor market value
$680,000
Tax year 2026 · before exemptions; the assessed value on your notice is 10% of it
Living area
2,713 sqft
$251 per sqft
Year built
1999
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 55.3% from $437,950 in 2025 to $680,000 in 2026.
  • Assessor market value per square footThe current public record shows about $251 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

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

  • 1247 117th St Lemont, IL 60439
    2,656 sqft | $271/sqft | built 1999 | Similar size (2,656 vs 2,713 sqft); Built same year (1999); Similar lot size (22,000 vs 22,000 sqft)
    $720,000
  • 12133 Walker Rd Lemont, IL 60439
    2,888 sqft | $222/sqft | built 1993 | 6% larger (2,888 vs 2,713 sqft); Similar lot size (21,387 vs 22,000 sqft); Same quality (Average)
    $640,000
  • 11905 Center Dr Lemont, IL 60439
    2,549 sqft | $228/sqft | built 1991 | 6% smaller (2,549 vs 2,713 sqft); Similar lot size (22,000 vs 22,000 sqft); Same quality (Average)
    $580,000
  • 1407 Oak Ave Lemont, IL 60439
    2,670 sqft | $232/sqft | built 1992 | Similar size (2,670 vs 2,713 sqft); Similar lot size (23,783 vs 22,000 sqft); Same quality (Average)
    $620,000
  • 11340 Woodlawn Ave Lemont, IL 60439
    2,452 sqft | $265/sqft | built 1999 | 10% smaller (2,452 vs 2,713 sqft); Built same year (1999); Similar lot size (23,400 vs 22,000 sqft)
    $650,000

Recent comparable sales

Sales selected by similarity to the subject property.

  • 1238 Acorn St Lemont, IL 60439
    2,802 sqft | $223/sqft | built 1990 | Similar size (2,802 sqft); Moderate age difference (9 years older); Same beds (3)
    $625,000
  • 11 Cedar Ct Lemont, IL 60439
    2,722 sqft | $253/sqft | built 1990 | Similar size (2,722 sqft); Moderate age difference (9 years older); Within 1 bedroom (4 vs 3)
    $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 55.3% in 2026 from 2025.

Assessor market value by tax year, with the change from the previous year listed
Tax yearAssessor market valueChangeChange %
2026$680,000+$242,050+55.3%
2025$437,950$00.0%
2024$437,950−$81,660−15.7%
2023$519,610+$141,630+37.5%
2022$377,980$00.0%
2021$377,980−$42,990−10.2%
2020$420,970——
6-year total+$259,030+61.5%