Cook County Value

12970 McCarthy Rd Lemont, IL 60439

3 bed / 2 bath, 2,496 sqft, built 1979, in Lemont. Assessor market value for 2026: $630,000.

Cook County account 22264020060000

Assessor market value
$630,000
Tax year 2026 · before exemptions; the assessed value on your notice is 10% of it
Living area
2,496 sqft
$252 per sqft
Year built
1979
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 28.6% from $490,000 in 2025 to $630,000 in 2026.
  • Assessor market value per square footThe current public record shows about $252 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 278 residential records in the same neighborhood, the average assessor market value is about $298 per square foot.
  • Area year-over-year signalNearby residential records with prior-year values moved about +39.8% on average.

Comparable assessments

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

  • 61 Galway Rd Lemont, IL 60439
    2,395 sqft | $288/sqft | built 1990 | Similar size (2,395 vs 2,496 sqft); Similar lot size (42,938 vs 43,200 sqft); Same quality (Average)
    $690,000
  • 25 Sun Hill Ln Lemont, IL 60439
    2,697 sqft | $248/sqft | built 1981 | 8% larger (2,697 vs 2,496 sqft); Similar age (1981 vs 1979); Similar lot size (42,000 vs 43,200 sqft)
    $670,000
  • 8 Sun Hill Ln Lemont, IL 60439
    2,567 sqft | $249/sqft | built 1987 | Similar size (2,567 vs 2,496 sqft); Similar lot size (40,050 vs 43,200 sqft); Same quality (Average)
    $640,000
  • 7 Katie Rd Lemont, IL 60439
    2,473 sqft | $279/sqft | built 1987 | Similar size (2,473 vs 2,496 sqft); Similar lot size (40,266 vs 43,200 sqft); Same quality (Average)
    $690,000
  • 115 Galway Rd Lemont, IL 60439
    2,584 sqft | $259/sqft | built 1992 | Similar size (2,584 vs 2,496 sqft); Similar lot size (40,040 vs 43,200 sqft); Same quality (Average)
    $670,000

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 28.6% in 2026 from 2025.

Assessor market value by tax year, with the change from the previous year listed
Tax yearAssessor market valueChangeChange %
2026$630,000+$140,000+28.6%
2025$490,000$00.0%
2024$490,000$00.0%
2023$490,000+$103,290+26.7%
2022$386,710$00.0%
2021$386,710$00.0%
2020$386,710——
6-year total+$243,290+62.9%