Cook County Value

1037 Harlem Ave Forest Park, IL 60130

3 bed / 1 bath, 1,152 sqft, built 1923, in Proviso. Assessor market value for 2026: $310,000.

Cook County account 15134230290000

Assessor market value
$310,000
Tax year 2026 · before exemptions; the assessed value on your notice is 10% of it
Living area
1,152 sqft
$269 per sqft
Year built
1923
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 60130 and Proviso assessment pages.

Local guide: Proviso Township 2026 Property Tax Appeal Guide.

Appeal deadlines

For Proviso, appeals to the Assessor are open through (8 days left).

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 10.7% from $280,000 in 2025 to $310,000 in 2026.
  • Assessor market value per square footThe current public record shows about $269 per square foot before any comparable-property adjustments.
  • Nearby comparison areaThis page starts the equity review with public records for the Proviso neighborhood and ZIP 60130.
  • Neighborhood value signalAmong 1,610 residential records in the same neighborhood, the average assessor market value is about $258 per square foot.
  • Area year-over-year signalNearby residential records with prior-year values moved about +17.7% on average.

Comparable assessments

Showing 5 of the 8 similar homes in this property's equity comparison, from public appraisal records.

  • 925 Elgin Ave Forest Park, IL 60130
    1,123 sqft | $294/sqft | built 1922 | Similar size (1,123 vs 1,152 sqft); Similar age (1922 vs 1923); Similar lot size (4,125 vs 4,132 sqft)
    $330,000
  • 825 Hannah Ave Forest Park, IL 60130
    1,147 sqft | $314/sqft | built 1922 | Similar size (1,147 vs 1,152 sqft); Similar age (1922 vs 1923); Similar lot size (4,125 vs 4,132 sqft)
    $360,000
  • 827 Hannah Ave Forest Park, IL 60130
    1,176 sqft | $315/sqft | built 1922 | Similar size (1,176 vs 1,152 sqft); Similar age (1922 vs 1923); Similar lot size (4,250 vs 4,132 sqft)
    $370,000
  • 912 Circle Ave Forest Park, IL 60130
    1,188 sqft | $303/sqft | built 1919 | Similar size (1,188 vs 1,152 sqft); Similar age (1919 vs 1923); Similar lot size (4,166 vs 4,132 sqft)
    $360,000
  • 929 Elgin Ave Forest Park, IL 60130
    1,102 sqft | $417/sqft | built 1924 | Similar size (1,102 vs 1,152 sqft); Similar age (1924 vs 1923); Similar lot size (4,250 vs 4,132 sqft)
    $460,000

Recent comparable sales

Sales selected by similarity to the subject property.

  • 1125 Marengo Ave Forest Park, IL 60130
    1,040 sqft | $372/sqft | built 1923 | 10% size difference (1,040 sqft); Similar age (1923); Same beds (3)
    $387,000

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 10.7% in 2026 from 2025.

Assessor market value by tax year, with the change from the previous year listed
Tax yearAssessor market valueChangeChange %
2026$310,000+$30,000+10.7%
2025$280,000$00.0%
2024$280,000$00.0%
2023$280,000+$59,750+27.1%
2022$220,250$00.0%
2021$220,250+$200.0%
2020$220,230——
6-year total+$89,770+40.8%