Cook County Value

851 N East Ave, Oak Park, IL 60302

3 bed / 2 bath, 1,758 sqft, built 1941, in Oak Park. Assessor market value for 2026: $650,000.

Cook County account 16064030140000

Assessor market value
$650,000
Tax year 2026 · before exemptions; the assessed value on your notice is 10% of it
Living area
1,758 sqft
$370 per sqft
Year built
1941
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 60302, 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 29.8% from $500,670 in 2025 to $650,000 in 2026.
  • Assessor market value per square footThe current public record shows about $370 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 60302.
  • Neighborhood value signalAmong 1,390 residential records in the same neighborhood, the average assessor market value is about $323 per square foot.
  • Area year-over-year signalNearby residential records with prior-year values moved about +22.6% on average.

Comparable assessments

Similar public appraisal records selected for this property's equity comparison.

  • 520 Forest Ave, Oak Park, IL 60302
    1,763 sqft | $335/sqft | built 1941 | Similar size (1,763 vs 1,758 sqft); Built same year (1941); Lot 10% larger (7,400 vs 6,720 sqft)
    $590,000
  • 845 N Ridgeland Ave, Oak Park, IL 60302
    1,725 sqft | $354/sqft | built 1939 | Similar size (1,725 vs 1,758 sqft); Similar age (1939 vs 1941); Lot 11% smaller (6,000 vs 6,720 sqft)
    $610,000
  • 845 Iowa St, Oak Park, IL 60302
    1,830 sqft | $377/sqft | built 1951 | Similar size (1,830 vs 1,758 sqft); Similar lot size (6,930 vs 6,720 sqft); Same quality (Average)
    $690,000
  • 801 N East Ave, Oak Park, IL 60302
    1,770 sqft | $316/sqft | built 1953 | Similar size (1,770 vs 1,758 sqft); Similar lot size (6,200 vs 6,720 sqft); Same quality (Average)
    $560,000
  • 832 N Oak Park Ave, Oak Park, IL 60302
    1,823 sqft | $335/sqft | built 1931 | Similar size (1,823 vs 1,758 sqft); Similar lot size (6,300 vs 6,720 sqft); Same quality (Average)
    $610,000

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 29.8% in 2026 from 2025.

Assessor market value by tax year, with the change from the previous year listed
Tax yearAssessor market valueChangeChange %
2026$650,000+$149,330+29.8%
2025$500,670$00.0%
2024$500,670−$59,330−10.6%
2023$560,000+$110,500+24.6%
2022$449,500$00.0%
2021$449,500+$100.0%
2020$449,490——
6-year total+$200,510+44.6%