Cook County Value

1029 Forest Ln Lemont, IL 60439

4 bed / 2 bath, 2,489 sqft, built 1977, in Lemont. Assessor market value for 2026: $520,000.

Cook County account 22294140490000

Assessor market value
$520,000
Tax year 2026 · before exemptions; the assessed value on your notice is 10% of it
Living area
2,489 sqft
$209 per sqft
Year built
1977
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 25.8% from $413,210 in 2025 to $520,000 in 2026.
  • Assessor market value per square footThe current public record shows about $209 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 858 residential records in the same neighborhood, the average assessor market value is about $264 per square foot.
  • Area year-over-year signalNearby residential records with prior-year values moved about +21.4% on average.

Comparable assessments

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

  • 2 Keepataw Ln Lemont, IL 60439
    2,462 sqft | $219/sqft | built 1977 | Similar size (2,462 vs 2,489 sqft); Built same year (1977); Similar lot size (13,320 vs 13,523 sqft)
    $540,000
  • 1028 Forest Ln Lemont, IL 60439
    2,535 sqft | $197/sqft | built 1977 | Similar size (2,535 vs 2,489 sqft); Built same year (1977); Similar lot size (13,227 vs 13,523 sqft)
    $500,000
  • 438 Keepataw Dr Lemont, IL 60439
    2,468 sqft | $207/sqft | built 1977 | Similar size (2,468 vs 2,489 sqft); Built same year (1977); Similar lot size (13,079 vs 13,523 sqft)
    $510,000
  • 427 Freehauf St Lemont, IL 60439
    2,482 sqft | $205/sqft | built 1986 | Similar size (2,482 vs 2,489 sqft); Similar lot size (13,200 vs 13,523 sqft); Same quality (Average)
    $510,000
  • 1019 Crestview Dr Lemont, IL 60439
    2,526 sqft | $190/sqft | built 1977 | Similar size (2,526 vs 2,489 sqft); Built same year (1977); Similar lot size (13,908 vs 13,523 sqft)
    $480,010

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: . Showing the last prepared sales evidence while recent sales are refreshed. Matches consider available size, age, location and property characteristics. How comparisons work.

Value history

Up 25.8% in 2026 from 2025.

Assessor market value by tax year, with the change from the previous year listed
Tax yearAssessor market valueChangeChange %
2026$520,000+$106,790+25.8%
2025$413,210$00.0%
2024$413,210−$36,790−8.2%
2023$450,000+$133,000+42.0%
2022$317,000$00.0%
2021$317,000+$200.0%
2020$316,980——
6-year total+$203,020+64.0%