Cook County Value

1248 Janas Ln Lemont, IL 60439

4 bed / 2 bath, 3,287 sqft, built 1989, in Lemont. Assessor market value for 2026: $650,000.

Cook County account 22282110100000

Assessor market value
$650,000
Tax year 2026 · before exemptions; the assessed value on your notice is 10% of it
Living area
3,287 sqft
$198 per sqft
Year built
1989
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 25.0% from $520,000 in 2025 to $650,000 in 2026.
  • Assessor market value per square footThe current public record shows about $198 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 279 residential records in the same neighborhood, the average assessor market value is about $262 per square foot.
  • Area year-over-year signalNearby residential records with prior-year values moved about +30.6% on average.

Comparable assessments

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

  • 1216 Janas Ln Lemont, IL 60439
    3,292 sqft | $219/sqft | built 1993 | Similar size (3,292 vs 3,287 sqft); Similar age (1993 vs 1989); Similar lot size (9,887 vs 9,938 sqft)
    $720,000
  • 891 Woodcrest Ln Lemont, IL 60439
    3,438 sqft | $189/sqft | built 1989 | Similar size (3,438 vs 3,287 sqft); Built same year (1989); Similar lot size (9,240 vs 9,938 sqft)
    $650,000
  • 1212 Country Ln Lemont, IL 60439
    3,001 sqft | $200/sqft | built 1989 | 9% smaller (3,001 vs 3,287 sqft); Built same year (1989); Similar lot size (9,730 vs 9,938 sqft)
    $600,000
  • 760 Kromray Rd Lemont, IL 60439
    2,954 sqft | $203/sqft | built 1989 | 10% smaller (2,954 vs 3,287 sqft); Built same year (1989); Similar lot size (9,835 vs 9,938 sqft)
    $600,000
  • 890 Woodcrest Ln Lemont, IL 60439
    3,047 sqft | $197/sqft | built 1989 | 7% smaller (3,047 vs 3,287 sqft); Built same year (1989); Similar lot size (9,240 vs 9,938 sqft)
    $600,000

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 25.0% in 2026 from 2025.

Assessor market value by tax year, with the change from the previous year listed
Tax yearAssessor market valueChangeChange %
2026$650,000+$130,000+25.0%
2025$520,000$00.0%
2024$520,000$00.0%
2023$520,000+$185,220+55.3%
2022$334,780$00.0%
2021$334,780+$200.0%
2020$334,760——
6-year total+$315,240+94.2%