Cook County Value

1015 Wisconsin Ave, Oak Park, IL 60304

4 bed / 1 bath, 1,885 sqft, built 1908, in Oak Park. Assessor market value for 2026: $550,000.

Cook County account 16183090170000

Assessor market value
$550,000
Tax year 2026 · before exemptions; the assessed value on your notice is 10% of it
Living area
1,885 sqft
$292 per sqft
Year built
1908
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 60304, Oak Park, and Oak Park assessment pages.

Local guide: Oak Park Township 2026 Property Tax Appeal Guide.

Appeal deadlines

The 2026 appeal windows for Oak Park have closed (Assessor , Board of Review ). 2027 notices usually start in March.

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 $440,000 in 2025 to $550,000 in 2026.
  • Assessor market value per square footThe current public record shows about $292 per square foot before any comparable-property adjustments.
  • Nearby comparison areaThis page starts the equity review with public records for the Oak Park neighborhood and ZIP 60304.
  • Neighborhood value signalAmong 1,599 residential records in the same neighborhood, the average assessor market value is about $303 per square foot.
  • Area year-over-year signalNearby residential records with prior-year values moved about +19.0% on average.

Comparable assessments

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

  • 1162 S Maple Ave, Oak Park, IL 60304
    1,890 sqft | $302/sqft | built 1909 | Similar size (1,890 vs 1,885 sqft); Similar age (1909 vs 1908); Similar lot size (8,500 vs 8,550 sqft)
    $570,000
  • 1032 S Maple Ave, Oak Park, IL 60304
    1,860 sqft | $285/sqft | built 1908 | Similar size (1,860 vs 1,885 sqft); Built same year (1908); Similar lot size (8,500 vs 8,550 sqft)
    $530,000
  • 1155 Wisconsin Ave, Oak Park, IL 60304
    1,854 sqft | $314/sqft | built 1917 | Similar size (1,854 vs 1,885 sqft); Similar lot size (8,550 vs 8,550 sqft); Same quality (Average)
    $582,640
  • 1144 S Maple Ave, Oak Park, IL 60304
    1,834 sqft | $284/sqft | built 1922 | Similar size (1,834 vs 1,885 sqft); Similar lot size (8,500 vs 8,550 sqft); Same quality (Average)
    $520,000
  • 937 Home Ave, Oak Park, IL 60304
    1,872 sqft | $321/sqft | built 1895 | Similar size (1,872 vs 1,885 sqft); Lot 12% smaller (7,500 vs 8,550 sqft); Same quality (Average)
    $600,000

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$550,000+$110,000+25.0%
2025$440,000$00.0%
2024$440,000$00.0%
2023$440,000+$52,800+13.6%
2022$387,200$00.0%
2021$387,200+$200.0%
2020$387,180——
6-year total+$162,820+42.1%