Cook County Value

940 Wenonah Ave, Oak Park, IL 60304

3 bed / 1 bath, 1,884 sqft, built 1903, in Oak Park. Assessor market value for 2026: $550,000.

Cook County account 16183030190000

Assessor market value
$550,000
Tax year 2026 · before exemptions; the assessed value on your notice is 10% of it
Living area
1,884 sqft
$292 per sqft
Year built
1903
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 10.0% from $500,000 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.

  • 1046 Wenonah Ave, Oak Park, IL 60304
    1,884 sqft | $310/sqft | built 1904 | Similar size (1,884 vs 1,884 sqft); Similar age (1904 vs 1903); Similar lot size (5,625 vs 6,000 sqft)
    $583,700
  • 946 Wisconsin Ave, Oak Park, IL 60304
    1,897 sqft | $279/sqft | built 1914 | Similar size (1,897 vs 1,884 sqft); Similar lot size (6,000 vs 6,000 sqft); Same quality (Average)
    $530,000
  • 1136 Wenonah Ave, Oak Park, IL 60304
    1,862 sqft | $274/sqft | built 1907 | Similar size (1,862 vs 1,884 sqft); Similar age (1907 vs 1903); Similar lot size (5,625 vs 6,000 sqft)
    $510,000
  • 1033 S Euclid Ave, Oak Park, IL 60304
    1,858 sqft | $296/sqft | built 1908 | Similar size (1,858 vs 1,884 sqft); Similar age (1908 vs 1903); Similar lot size (6,100 vs 6,000 sqft)
    $550,000
  • 1025 Home Ave, Oak Park, IL 60304
    1,839 sqft | $299/sqft | built 1908 | Similar size (1,839 vs 1,884 sqft); Similar age (1908 vs 1903); Similar lot size (5,625 vs 6,000 sqft)
    $550,000

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 10.0% 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+$50,000+10.0%
2025$500,000$00.0%
2024$500,000$00.0%
2023$500,000+$121,340+32.0%
2022$378,660$00.0%
2021$378,660$00.0%
2020$378,660——
6-year total+$171,340+45.2%