Cook County Value

12203 Walker Rd Lemont, IL 60439

3 bed / 2 bath, 2,273 sqft, built 2011, in Lemont. Assessor market value for 2026: $690,010.

Cook County account 22271001000000

Assessor market value
$690,010
Tax year 2026 · before exemptions; the assessed value on your notice is 10% of it
Living area
2,273 sqft
$304 per sqft
Year built
2011
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 39.6% from $494,350 in 2025 to $690,010 in 2026.
  • Assessor market value per square footThe current public record shows about $304 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 636 residential records in the same neighborhood, the average assessor market value is about $286 per square foot.
  • Area year-over-year signalNearby residential records with prior-year values moved about +33.3% on average.

Comparable assessments

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

  • 12201 Walker Rd Lemont, IL 60439
    2,083 sqft | $326/sqft | built 2021 | 8% smaller (2,083 vs 2,273 sqft); Similar lot size (19,465 vs 19,484 sqft); Same quality (Average)
    $680,000
  • 11979 Walker Rd Lemont, IL 60439
    2,340 sqft | $303/sqft | built 2013 | Similar size (2,340 vs 2,273 sqft); Similar age (2013 vs 2011); Lot 16% larger (22,687 vs 19,484 sqft)
    $710,000
  • 11765 Center St Lemont, IL 60439
    2,530 sqft | $269/sqft | built 2001 | 11% larger (2,530 vs 2,273 sqft); Similar lot size (18,900 vs 19,484 sqft); Same quality (Average)
    $680,010
  • 111 Apple Ave Lemont, IL 60439
    2,219 sqft | $279/sqft | built 2007 | Similar size (2,219 vs 2,273 sqft); Similar age (2007 vs 2011); Same quality (Average)
    $620,000
  • 11340 Woodlawn Ave Lemont, IL 60439
    2,452 sqft | $265/sqft | built 1999 | 8% larger (2,452 vs 2,273 sqft); Same quality (Average); Same bed/bath (3/2)
    $650,000

Recent comparable sales

Sales selected by similarity to the subject property.

  • 12655 Derry Dr Lemont, IL 60439
    June-29-2026 | 2,672 sqft | $266/sqft | built 2025 | Sold after the valuation date; Same beds (3)
    $710,150
  • 12420 Lacey Dr Lemont, IL 60439
    2,100 sqft | $269/sqft | built 2019 | 8% size difference (2,100 sqft); Moderate age difference (8 years newer); Same beds (3)
    $565,000
  • 1217 Woburn Dr Lemont, IL 60439
    2,576 sqft | $318/sqft | built 2016 | 13% size difference (2,576 sqft); Moderate age difference (5 years newer); Within 1 bedroom (4 vs 3)
    $819,000

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 39.6% in 2026 from 2025.

Assessor market value by tax year, with the change from the previous year listed
Tax yearAssessor market valueChangeChange %
2026$690,010+$195,660+39.6%
2025$494,350−$15,650−3.1%
2024$510,000$00.0%
2023$510,000+$33,430+7.0%
2022$476,570$00.0%
2021$476,570−$42,440−8.2%
2020$519,010——
6-year total+$171,000+32.9%