Cook County Value

13210 Derby Rd Lemont, IL 60439

3 bed / 3 bath, 1,765 sqft, built 1988, in Lemont. Assessor market value for 2026: $654,730.

Cook County account 22343010080000

Possibly too high

about $117,000

4 similar homes nearby point to a value about $117,000 lower than yours.

Assessor market value$654,730
Similar homes$537,477
$117,253 gap · bars start at $0

How sure: Medium · 4 similar homes · public records only

Assessor market value
$654,730
Tax year 2026 · before exemptions; the assessed value on your notice is 10% of it
Living area
1,765 sqft
$371 per sqft
Year built
1988
Average quality

Why we think so

Similar homes' assessments

Moderate

4 of 4 similar homes are assessed lower per square foot. Their similarity-weighted average is $302.34/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 $264,850. Counting your land in place of theirs where theirs is less, they support a value of $537,477.

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 35.1% from $484,690 in 2025 to $654,730 in 2026.
  • Assessor market value per square footThe current public record shows about $371 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

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

  • 12 Valley View Dr Lemont, IL 60439
    1,739 sqft | $293/sqft | built 1988 | Similar size (1,739 vs 1,765 sqft); Built same year (1988); Similar lot size (45,433 vs 43,560 sqft)
    $510,000
  • 1276 Fairway Dr Lemont, IL 60439
    1,825 sqft | $296/sqft | built 1998 | Similar size (1,825 vs 1,765 sqft); Similar lot size (43,255 vs 43,560 sqft); Same quality (Average)
    $540,000
  • 15362 130th Pl Lemont, IL 60439
    1,802 sqft | $305/sqft | built 1977 | Similar size (1,802 vs 1,765 sqft); Similar lot size (47,692 vs 43,560 sqft); Same quality (Average)
    $550,000
  • 12463 Spyglass Ct Lemont, IL 60439
    1,770 sqft | $316/sqft | built 1992 | Similar size (1,770 vs 1,765 sqft); Similar age (1992 vs 1988); Same quality (Average)
    $560,000

Recent comparable sales

No usable comparable sales are available in this data snapshot.

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 35.1% in 2026 from 2025.

Assessor market value by tax year, with the change from the previous year listed
Tax yearAssessor market valueChangeChange %
2026$654,730+$170,040+35.1%
2025$484,690+$64,730+15.4%
2024$419,960−$73,180−14.8%
2023$493,140+$138,060+38.9%
2022$355,080$00.0%
2021$355,080$00.0%
2020$355,080——
6-year total+$299,650+84.4%