Cook County Value

611 Wenonah Ave, Oak Park, IL 60304

3 bed / 1 bath, 1,360 sqft, built 1912, in Oak Park. Assessor market value for 2026: $447,000.

Cook County account 16181110160000

Assessor market value
$447,000
Tax year 2026 · before exemptions; the assessed value on your notice is 10% of it
Living area
1,360 sqft
$329 per sqft
Year built
1912
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 24.3% from $359,540 in 2025 to $447,000 in 2026.
  • Assessor market value per square footThe current public record shows about $329 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 1,503 residential records in the same neighborhood, the average assessor market value is about $318 per square foot.
  • Area year-over-year signalNearby residential records with prior-year values moved about +27.4% on average.

Comparable assessments

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

  • 734 Clarence Ave, Oak Park, IL 60304
    1,368 sqft | $329/sqft | built 1915 | Similar size (1,368 vs 1,360 sqft); Similar age (1915 vs 1912); Similar lot size (3,125 vs 3,125 sqft)
    $450,000
  • 708 Clarence Ave, Oak Park, IL 60304
    1,330 sqft | $323/sqft | built 1915 | Similar size (1,330 vs 1,360 sqft); Similar age (1915 vs 1912); Similar lot size (3,125 vs 3,125 sqft)
    $430,000
  • 641 S East Ave, Oak Park, IL 60304
    1,376 sqft | $312/sqft | built 1916 | Similar size (1,376 vs 1,360 sqft); Similar age (1916 vs 1912); Similar lot size (3,150 vs 3,125 sqft)
    $430,000
  • 624 Wesley Ave, Oak Park, IL 60304
    1,320 sqft | $356/sqft | built 1911 | Similar size (1,320 vs 1,360 sqft); Similar age (1911 vs 1912); Similar lot size (3,150 vs 3,125 sqft)
    $470,000
  • 625 Home Ave, Oak Park, IL 60304
    1,386 sqft | $355/sqft | built 1908 | Similar size (1,386 vs 1,360 sqft); Similar age (1908 vs 1912); Similar lot size (3,125 vs 3,125 sqft)
    $491,400

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 24.3% in 2026 from 2025.

Assessor market value by tax year, with the change from the previous year listed
Tax yearAssessor market valueChangeChange %
2026$447,000+$87,460+24.3%
2025$359,540−$31,420−8.0%
2024$390,960−$49,040−11.1%
2023$440,000+$122,600+38.6%
2022$317,400−$17,140−5.1%
2021$334,540+$100.0%
2020$334,530——
6-year total+$112,470+33.6%