Cook County Value

1212 Leinster Dr Lemont, IL 60439

4 bed / 2 bath, 3,378 sqft, built 1994, in Lemont. Assessor market value for 2026: $780,000.

Cook County account 22321090030000

Assessor market value
$780,000
Tax year 2026 · before exemptions; the assessed value on your notice is 10% of it
Living area
3,378 sqft
$231 per sqft
Year built
1994
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 changed from $463,010 in 2025 to $780,000 in 2026. A change this large often reflects new construction, a reclassification or a record correction, so check it against the county record.
  • Assessor market value per square footThe current public record shows about $231 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.

  • 13320 Fox Hill Dr Lemont, IL 60439
    3,380 sqft | $240/sqft | built 1995 | Similar size (3,380 vs 3,378 sqft); Similar age (1995 vs 1994); Similar lot size (30,056 vs 29,529 sqft)
    $810,000
  • 13231 Meadow Hill Ln Lemont, IL 60439
    3,410 sqft | $223/sqft | built 1998 | Similar size (3,410 vs 3,378 sqft); Similar age (1998 vs 1994); Similar lot size (29,969 vs 29,529 sqft)
    $760,000
  • 13161 Fox Hill Dr Lemont, IL 60439
    3,383 sqft | $264/sqft | built 1992 | Similar size (3,383 vs 3,378 sqft); Similar age (1992 vs 1994); Similar lot size (30,012 vs 29,529 sqft)
    $894,520
  • 13403 Red Fox Ct Lemont, IL 60439
    3,356 sqft | $241/sqft | built 1989 | Similar size (3,356 vs 3,378 sqft); Similar age (1989 vs 1994); Similar lot size (30,274 vs 29,529 sqft)
    $810,000
  • 13160 Meadow Hill Ln Lemont, IL 60439
    3,410 sqft | $240/sqft | built 1996 | Similar size (3,410 vs 3,378 sqft); Similar age (1996 vs 1994); Similar lot size (29,969 vs 29,529 sqft)
    $820,000

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 68.5% in 2026 from 2025.

Assessor market value by tax year, with the change from the previous year listed
Tax yearAssessor market valueChangeChange %
2026$780,000+$316,990+68.5%
2025$463,010−$98,480−17.5%
2024$561,490−$58,510−9.4%
2023$620,000+$165,440+36.4%
2022$454,560$00.0%
2021$454,560$00.0%
2020$454,560——
6-year total+$325,440+71.6%