Cook County Value

3 Mirta Cir Lemont, IL 60439

3 bed / 1 bath, 2,015 sqft, built 1963, in Lemont. Assessor market value for 2026: $540,010.

Cook County account 22284030090000

Assessor market value
$540,010
Tax year 2026 · before exemptions; the assessed value on your notice is 10% of it
Living area
2,015 sqft
$268 per sqft
Year built
1963
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 38.5% from $390,000 in 2025 to $540,010 in 2026.
  • Assessor market value per square footThe current public record shows about $268 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.

  • 9 Mirta Cir Lemont, IL 60439
    1,612 sqft | $310/sqft | built 1963 | Built same year (1963); Lot 11% larger (30,927 vs 27,931 sqft); Same quality (Average)
    $500,000
  • 16622 127th Lemont, IL 60439
    1,781 sqft | $303/sqft | built 1965 | 12% smaller (1,781 vs 2,015 sqft); Similar age (1965 vs 1963); Same quality (Average)
    $540,000
  • 13370 Derby Rd Lemont, IL 60439
    1,860 sqft | $290/sqft | built 1970 | 8% smaller (1,860 vs 2,015 sqft); Same quality (Average); Same neighborhood
    $540,000
  • 13320 Bell Rd Lemont, IL 60439
    1,422 sqft | $274/sqft | built 1967 | Similar age (1967 vs 1963); Same quality (Average); Same bed/bath (3/1)
    $390,000

Recent comparable sales

Sales selected by similarity to the subject property.

  • 11481 Bell Rd Lemont, IL 60439
    1,744 sqft | $290/sqft | built 1957 | 13% size difference (1,744 sqft); Moderate age difference (6 years older); Same beds (3)
    $505,000

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 38.5% in 2026 from 2025.

Assessor market value by tax year, with the change from the previous year listed
Tax yearAssessor market valueChangeChange %
2026$540,010+$150,010+38.5%
2025$390,000$00.0%
2024$390,000$00.0%
2023$390,000+$47,320+13.8%
2022$342,680$00.0%
2021$342,680$00.0%
2020$342,680——
6-year total+$197,330+57.6%