Cook County Value

13400 State St B Lemont, IL 60439

3 bed / 1 bath, 1,500 sqft, built 1966, in Lemont. Assessor market value for 2026: $450,000.

Cook County account 22323000690000

Assessor market value
$450,000
Tax year 2026 · before exemptions; the assessed value on your notice is 10% of it
Living area
1,500 sqft
$300 per sqft
Year built
1966
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 25.0% from $360,000 in 2025 to $450,000 in 2026.
  • Assessor market value per square footThe current public record shows about $300 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.

  • 16047 135th St Lemont, IL 60439
    1,498 sqft | $287/sqft | built 1954 | Similar size (1,498 vs 1,500 sqft); Lot 16% smaller (36,067 vs 42,950 sqft); Same quality (Average)
    $430,000
  • 13204 Archer Ave Lemont, IL 60439
    1,378 sqft | $319/sqft | built 1956 | 8% smaller (1,378 vs 1,500 sqft); Lot 10% smaller (38,594 vs 42,950 sqft); Same quality (Average)
    $440,000
  • 16025 135th St Lemont, IL 60439
    1,606 sqft | $293/sqft | built 1971 | 7% larger (1,606 vs 1,500 sqft); Similar age (1971 vs 1966); Lot 14% smaller (36,808 vs 42,950 sqft)
    $470,000
  • 16119 135th St Lemont, IL 60439
    1,385 sqft | $289/sqft | built 1964 | 8% smaller (1,385 vs 1,500 sqft); Similar age (1964 vs 1966); Same quality (Average)
    $400,000
  • 13380 Maple Ave Lemont, IL 60439
    1,690 sqft | $284/sqft | built 1955 | 13% larger (1,690 vs 1,500 sqft); Lot 14% larger (48,787 vs 42,950 sqft); Same quality (Average)
    $480,000

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 25.0% in 2026 from 2025.

Assessor market value by tax year, with the change from the previous year listed
Tax yearAssessor market valueChangeChange %
2026$450,000+$90,000+25.0%
2025$360,000$00.0%
2024$360,000$00.0%
2023$360,000+$74,720+26.2%
2022$285,280$00.0%
2021$285,280+$200.0%
2020$285,260——
6-year total+$164,740+57.8%