Cook County Value

13140 Derby Rd Lemont, IL 60439

3 bed / 3 bath, 2,744 sqft, built 1981, in Lemont. Assessor market value for 2026: $690,000.

Cook County account 22343000370000

In line with similar homes

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

Assessor market value$690,000
Similar homes$690,747
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
$690,000
Tax year 2026 · before exemptions; the assessed value on your notice is 10% of it
Living area
2,744 sqft
$251 per sqft
Year built
1981
Average quality

What we found

Similar homes' assessments

Weak

4 of 8 similar homes are assessed lower per square foot. Their similarity-weighted median is $250.36/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 $211,570. Counting your land in place of theirs where theirs is less, they support a value of $690,747.

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 48.1% from $465,830 in 2025 to $690,000 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 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.

  • 13055 Silver Fox Dr Lemont, IL 60439
    2,703 sqft | $248/sqft | built 1987 | Similar size (2,703 vs 2,744 sqft); Similar lot size (26,658 vs 27,299 sqft); Same quality (Average)
    $670,000
  • 1206 Leinster Dr Lemont, IL 60439
    2,738 sqft | $234/sqft | built 1986 | Similar size (2,738 vs 2,744 sqft); Similar age (1986 vs 1981); Lot 11% larger (30,174 vs 27,299 sqft)
    $640,000
  • 13100 Moorfield Ct Lemont, IL 60439
    2,800 sqft | $254/sqft | built 1989 | Similar size (2,800 vs 2,744 sqft); Lot 12% larger (30,535 vs 27,299 sqft); Same quality (Average)
    $710,000
  • 13430 Fox Hill Dr Lemont, IL 60439
    2,751 sqft | $262/sqft | built 1996 | Similar size (2,751 vs 2,744 sqft); Similar lot size (29,315 vs 27,299 sqft); Same quality (Average)
    $720,000
  • 13281 Fox Hill Dr Lemont, IL 60439
    2,796 sqft | $250/sqft | built 1993 | Similar size (2,796 vs 2,744 sqft); Lot 15% larger (31,276 vs 27,299 sqft); Same quality (Average)
    $700,000

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 newer); 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 newer); 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 48.1% in 2026 from 2025.

Assessor market value by tax year, with the change from the previous year listed
Tax yearAssessor market valueChangeChange %
2026$690,000+$224,170+48.1%
2025$465,830$00.0%
2024$465,830−$74,170−13.7%
2023$540,000+$145,420+36.9%
2022$394,580$00.0%
2021$394,580+$200.0%
2020$394,560——
6-year total+$295,440+74.9%