Cook County Value

12833 Klappa Dr Lemont, IL 60439

4 bed / 2 bath, 3,302 sqft, built 2001, in Lemont. Assessor market value for 2026: $931,000.

Cook County account 22312060110000

Assessor market value
$931,000
Tax year 2026 · before exemptions; the assessed value on your notice is 10% of it
Living area
3,302 sqft
$282 per sqft
Year built
2001
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 20.8% from $771,010 in 2025 to $931,000 in 2026.
  • Assessor market value per square footThe current public record shows about $282 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.

  • 13127 Kinsale Ct Lemont, IL 60439
    3,313 sqft | $257/sqft | built 2008 | Similar size (3,313 vs 3,302 sqft); Similar lot size (18,580 vs 18,653 sqft); Same quality (Average)
    $850,010
  • 13156 Ballycastle Ct Lemont, IL 60439
    3,308 sqft | $260/sqft | built 2010 | Similar size (3,308 vs 3,302 sqft); Similar lot size (18,873 vs 18,653 sqft); Same quality (Average)
    $860,000
  • 1380 Notre Dame Dr Lemont, IL 60439
    3,297 sqft | $234/sqft | built 1996 | Similar size (3,297 vs 3,302 sqft); Similar age (1996 vs 2001); Similar lot size (17,860 vs 18,653 sqft)
    $770,010
  • 13090 Ravine Dr Lemont, IL 60439
    3,312 sqft | $254/sqft | built 2003 | Similar size (3,312 vs 3,302 sqft); Similar age (2003 vs 2001); Lot 11% smaller (16,596 vs 18,653 sqft)
    $840,000
  • 15139 Turnberry Trl Lemont, IL 60439
    3,275 sqft | $238/sqft | built 1995 | Similar size (3,275 vs 3,302 sqft); Lot 11% smaller (16,511 vs 18,653 sqft); Same quality (Average)
    $780,000

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: . 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 20.8% in 2026 from 2025.

Assessor market value by tax year, with the change from the previous year listed
Tax yearAssessor market valueChangeChange %
2026$931,000+$159,990+20.8%
2025$771,010+$61,000+8.6%
2024$710,010$00.0%
2023$710,010+$250,850+54.6%
2022$459,160$00.0%
2021$459,160+$200.0%
2020$459,140——
6-year total+$471,860+102.8%