Cook County Value

1224 Leinster Dr Lemont, IL 60439

4 bed / 2 bath, 3,602 sqft, built 1989, in Lemont. Assessor market value for 2026: $770,000.

Cook County account 22321090080000

In line with similar homes

8 similar homes nearby support a value at or above your county value.

Assessor market value$770,000
Similar homes$829,576
No gap: similar homes are at or above the county value · bars start at $0

How sure: High · 8 similar homes (5 shown below) · public records only

Assessor market value
$770,000
Tax year 2026 · before exemptions; the assessed value on your notice is 10% of it
Living area
3,602 sqft
$214 per sqft
Year built
1989
Average quality

What we found

Similar homes' assessments

Weak

0 of 8 similar homes are assessed lower per square foot. Their similarity-weighted median is $228.94/sqft, but land is valued apart from the home, and some of them have less land value per square foot of home than yours, which counts as $242,290. Counting your land in place of theirs where theirs is less, they support a value of $829,576.

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 41.2% from $545,400 in 2025 to $770,000 in 2026.
  • Assessor market value per square footThe current public record shows about $214 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 2,806 residential records in the same neighborhood, the average assessor market value is about $255 per square foot.
  • Area year-over-year signalNearby residential records with prior-year values moved about +30.4% on average.

Comparable assessments

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

  • 13120 Moorfield Ct Lemont, IL 60439
    3,538 sqft | $229/sqft | built 1990 | Similar size (3,538 vs 3,602 sqft); Similar age (1990 vs 1989); Similar lot size (30,753 vs 31,263 sqft)
    $810,000
  • 13410 Red Fox Ct Lemont, IL 60439
    3,554 sqft | $225/sqft | built 1992 | Similar size (3,554 vs 3,602 sqft); Similar age (1992 vs 1989); Similar lot size (30,012 vs 31,263 sqft)
    $800,000
  • 13162 Briar Patch Ln Lemont, IL 60439
    3,580 sqft | $232/sqft | built 1999 | Similar size (3,580 vs 3,602 sqft); Similar lot size (31,581 vs 31,263 sqft); Same quality (Average)
    $830,000
  • 1090 Walter Ave Lemont, IL 60439
    3,568 sqft | $227/sqft | built 1991 | Similar size (3,568 vs 3,602 sqft); Similar age (1991 vs 1989); Similar lot size (29,454 vs 31,263 sqft)
    $810,000
  • 13845 Kit Ln Lemont, IL 60439
    3,562 sqft | $241/sqft | built 1997 | Similar size (3,562 vs 3,602 sqft); Similar lot size (29,629 vs 31,263 sqft); Same quality (Average)
    $860,010

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: . Matches consider available size, age, location and property characteristics. How comparisons work.

Value history

Up 41.2% in 2026 from 2025.

Assessor market value by tax year, with the change from the previous year listed
Tax yearAssessor market valueChangeChange %
2026$770,000+$224,600+41.2%
2025$545,400$00.0%
2024$545,400−$43,840−7.4%
2023$589,240+$130,700+28.5%
2022$458,540$00.0%
2021$458,540+$200.0%
2020$458,520——
6-year total+$311,480+67.9%