Cook County Value

12910 Parker Rd Lemont, IL 60439

4 bed / 2 bath, 3,269 sqft, built 1990, in Lemont. Assessor market value for 2026: $810,000.

Cook County account 22342050080000

Assessor market value
$810,000
Tax year 2026 · before exemptions; the assessed value on your notice is 10% of it
Living area
3,269 sqft
$248 per sqft
Year built
1990
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 32.8% from $610,000 in 2025 to $810,000 in 2026.
  • Assessor market value per square footThe current public record shows about $248 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.

  • 427 Jane Ct Lemont, IL 60439
    3,260 sqft | $242/sqft | built 1993 | Similar size (3,260 vs 3,269 sqft); Similar age (1993 vs 1990); Similar lot size (21,126 vs 20,338 sqft)
    $790,000
  • 13025 Silver Fox Dr Lemont, IL 60439
    3,265 sqft | $230/sqft | built 1987 | Similar size (3,265 vs 3,269 sqft); Similar age (1987 vs 1990); Similar lot size (21,819 vs 20,338 sqft)
    $750,000
  • 412 Jane Ave Lemont, IL 60439
    3,273 sqft | $232/sqft | built 1995 | Similar size (3,273 vs 3,269 sqft); Similar age (1995 vs 1990); Lot 11% larger (22,520 vs 20,338 sqft)
    $760,000
  • 13805 Dixon-way Dr Lemont, IL 60439
    3,257 sqft | $252/sqft | built 1998 | Similar size (3,257 vs 3,269 sqft); Similar lot size (21,967 vs 20,338 sqft); Same quality (Average)
    $820,000
  • 12833 Klappa Dr Lemont, IL 60439
    3,302 sqft | $282/sqft | built 2001 | Similar size (3,302 vs 3,269 sqft); Similar lot size (18,653 vs 20,338 sqft); Same quality (Average)
    $931,000

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 32.8% in 2026 from 2025.

Assessor market value by tax year, with the change from the previous year listed
Tax yearAssessor market valueChangeChange %
2026$810,000+$200,000+32.8%
2025$610,000$00.0%
2024$610,000$00.0%
2023$610,000+$167,440+37.8%
2022$442,560$00.0%
2021$442,560+$100.0%
2020$442,550——
6-year total+$367,450+83.0%