Cook County Value

845 Forest Ave, Oak Park, IL 60302

2 bed / 1 bath, 1,203 sqft, built 1908, in Oak Park. Assessor market value for 2026: $440,000.

Cook County account 16063020180000

Assessor market value
$440,000
Tax year 2026 · before exemptions; the assessed value on your notice is 10% of it
Living area
1,203 sqft
$366 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 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 10.0% from $400,000 in 2025 to $440,000 in 2026.
  • Assessor market value per square footThe current public record shows about $366 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

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

  • 847 Forest Ave, Oak Park, IL 60302
    1,187 sqft | $371/sqft | built 1913 | Similar size (1,187 vs 1,203 sqft); Similar age (1913 vs 1908); Lot 12% smaller (4,133 vs 4,690 sqft)
    $440,000
  • 816 Woodbine Ave, Oak Park, IL 60302
    1,179 sqft | $362/sqft | built 1904 | Similar size (1,179 vs 1,203 sqft); Similar age (1904 vs 1908); Lot 15% smaller (4,000 vs 4,690 sqft)
    $427,080
  • 837 Forest Ave, Oak Park, IL 60302
    1,188 sqft | $387/sqft | built 1903 | Similar size (1,188 vs 1,203 sqft); Similar age (1903 vs 1908); Lot 15% larger (5,394 vs 4,690 sqft)
    $460,000
  • 945 Division St, Oak Park, IL 60302
    1,276 sqft | $360/sqft | built 1918 | 6% larger (1,276 vs 1,203 sqft); Similar lot size (4,400 vs 4,690 sqft); Same quality (Average)
    $460,000
  • 833 Forest Ave, Oak Park, IL 60302
    1,164 sqft | $395/sqft | built 1915 | Similar size (1,164 vs 1,203 sqft); Lot 15% larger (5,394 vs 4,690 sqft); Same quality (Average)
    $460,000

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$440,000+$40,000+10.0%
2025$400,000$00.0%
2024$400,000$00.0%
2023$400,000+$64,790+19.3%
2022$335,210$00.0%
2021$335,210$00.0%
2020$335,210——
6-year total+$104,790+31.3%