Cook County Value

505 Forest Ave, Oak Park, IL 60302

6 bed / 2 bath, 3,221 sqft, built 1950, in Oak Park. Assessor market value for 2026: $759,010.

Cook County account 16063190600000

Assessor market value
$759,010
Tax year 2026 · before exemptions; the assessed value on your notice is 10% of it
Living area
3,221 sqft
$236 per sqft
Year built
1950
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 38.9% from $546,460 in 2025 to $759,010 in 2026.
  • Assessor market value per square footThe current public record shows about $236 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.

  • 154 N Euclid Ave, Oak Park, IL 60302
    3,165 sqft | $246/sqft | built 1953 | Similar size (3,165 vs 3,221 sqft); Similar age (1953 vs 1950); Similar lot size (6,225 vs 6,876 sqft)
    $780,010
  • 152 N Euclid Ave, Oak Park, IL 60302
    3,651 sqft | $230/sqft | built 1953 | 13% larger (3,651 vs 3,221 sqft); Similar age (1953 vs 1950); Similar lot size (6,225 vs 6,876 sqft)
    $840,010
  • 1016 Chicago Ave, Oak Park, IL 60302
    2,808 sqft | $226/sqft | built 1952 | 13% smaller (2,808 vs 3,221 sqft); Similar age (1952 vs 1950); Similar lot size (6,549 vs 6,876 sqft)
    $635,250
  • 1018 Chicago Ave, Oak Park, IL 60302
    2,704 sqft | $200/sqft | built 1953 | Similar age (1953 vs 1950); Similar lot size (6,372 vs 6,876 sqft); Same quality (Average)
    $540,000
  • 500 Forest Ave, Oak Park, IL 60302
    2,898 sqft | $231/sqft | built 1957 | 10% smaller (2,898 vs 3,221 sqft); Lot 15% larger (7,878 vs 6,876 sqft); Same quality (Average)
    $670,000

Recent comparable sales

No usable comparable sales are available in this data snapshot.

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 38.9% in 2026 from 2025.

Assessor market value by tax year, with the change from the previous year listed
Tax yearAssessor market valueChangeChange %
2026$759,010+$212,550+38.9%
2025$546,460−$74,720−12.0%
2024$621,180−$48,820−7.3%
2023$670,000+$58,910+9.6%
2022$611,090$00.0%
2021$611,090+$100.0%
2020$611,080——
6-year total+$147,930+24.2%