Cook County Value

13110 Derby Rd Lemont, IL 60439

2 bed / 1 bath, 1,310 sqft, built 1950, in Lemont. Assessor market value for 2026: $410,000.

Cook County account 22343000150000

Small or uncertain difference

about $600

8 similar homes nearby point to a value about $600 lower than yours, a small or uncertain difference.

Assessor market value$410,000
Similar homes$409,375
$625 gap · bars start at $0

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

Assessor market value
$410,000
Tax year 2026 · before exemptions; the assessed value on your notice is 10% of it
Living area
1,310 sqft
$313 per sqft
Year built
1950
Average quality

Why we think so

Similar homes' assessments

Weak

5 of 8 similar homes are assessed lower per square foot. Their similarity-weighted median is $312.50/sqft, which supports a value of $409,375.

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 28.2% from $319,870 in 2025 to $410,000 in 2026.
  • Assessor market value per square footThe current public record shows about $313 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.

  • 14854 Kotlin Rd Lemont, IL 60439
    1,325 sqft | $347/sqft | built 1940 | Similar size (1,325 vs 1,310 sqft); Similar lot size (45,032 vs 43,560 sqft); Same quality (Average)
    $460,010
  • 14318 McCarthy Rd Lemont, IL 60439
    1,361 sqft | $334/sqft | built 1951 | Similar size (1,361 vs 1,310 sqft); Similar age (1951 vs 1950); Same quality (Average)
    $454,720
  • 12917 Archer Ave Lemont, IL 60439
    1,440 sqft | $312/sqft | built 1945 | 10% larger (1,440 vs 1,310 sqft); Similar age (1945 vs 1950); Lot 18% larger (51,405 vs 43,560 sqft)
    $450,000
  • 12919 Archer Ave Lemont, IL 60439
    1,550 sqft | $265/sqft | built 1948 | Similar age (1948 vs 1950); Similar lot size (46,609 vs 43,560 sqft); Same quality (Average)
    $410,000
  • 12494 Spyglass Ct Lemont, IL 60439
    1,600 sqft | $262/sqft | built 1958 | Similar lot size (42,078 vs 43,560 sqft); Same quality (Average); Same neighborhood
    $420,000

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 28.2% in 2026 from 2025.

Assessor market value by tax year, with the change from the previous year listed
Tax yearAssessor market valueChangeChange %
2026$410,000+$90,130+28.2%
2025$319,870$00.0%
2024$319,870−$123,270−27.8%
2023$443,140+$171,840+63.3%
2022$271,300$00.0%
2021$271,300+$100.0%
2020$271,290——
6-year total+$138,710+51.1%