Cook County Value

27 115th St Lemont, IL 60439

4 bed / 3 bath, 4,058 sqft, built 1990, in Lemont. Assessor market value for 2026: $1,117,100.

Cook County account 22243080020000

Assessor market value
$1,117,100
Tax year 2026 · before exemptions; the assessed value on your notice is 10% of it
Living area
4,058 sqft
$275 per sqft
Year built
1990

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 58.8% from $703,560 in 2025 to $1,117,100 in 2026.
  • Assessor market value per square footThe current public record shows about $275 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 321 residential records in the same neighborhood, the average assessor market value is about $244 per square foot.
  • Area year-over-year signalNearby residential records with prior-year values moved about +52.5% on average.

Comparable assessments

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

  • 12 Horseshoe Ln Lemont, IL 60439
    3,962 sqft | $220/sqft | built 1986 | Similar size (3,962 vs 4,058 sqft); Similar age (1986 vs 1990); Similar lot size (46,347 vs 48,085 sqft)
    $870,000
  • 27 Equestrian Way Lemont, IL 60439
    3,868 sqft | $220/sqft | built 1988 | Similar size (3,868 vs 4,058 sqft); Similar age (1988 vs 1990); Similar lot size (46,326 vs 48,085 sqft)
    $850,000
  • 7 North Trl Lemont, IL 60439
    3,954 sqft | $233/sqft | built 1990 | Similar size (3,954 vs 4,058 sqft); Built same year (1990); Similar lot size (44,344 vs 48,085 sqft)
    $920,000
  • 1 Timberview Lemont, IL 60439
    4,231 sqft | $210/sqft | built 1988 | Similar size (4,231 vs 4,058 sqft); Similar age (1988 vs 1990); Similar lot size (45,389 vs 48,085 sqft)
    $890,000
  • 57 Woodview Ln Lemont, IL 60439
    3,881 sqft | $265/sqft | built 1989 | Similar size (3,881 vs 4,058 sqft); Similar age (1989 vs 1990); Similar lot size (44,496 vs 48,085 sqft)
    $1,029,520

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 58.8% in 2026 from 2025.

Assessor market value by tax year, with the change from the previous year listed
Tax yearAssessor market valueChangeChange %
2026$1,117,100+$413,540+58.8%
2025$703,560+$87,100+14.1%
2024$616,460−$44,630−6.8%
2023$661,090+$62,190+10.4%
2022$598,900$00.0%
2021$598,900−$50,640−7.8%
2020$649,540——
6-year total+$467,560+72.0%