Cook County Value

230 Park Ave River Forest, IL 60305

5 bed / 2 bath, 1,602 sqft, built 1949, in River Forest Assessor market value for 2026: $840,000.

Cook County account 15123020460000

Assessor market value
$840,000
Tax year 2026 · before exemptions; the assessed value on your notice is 10% of it
Living area
1,602 sqft
$524 per sqft
Year built
1949

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 60305 and River Forest assessment pages.

Local guide: River Forest Township 2026 Property Tax Appeal Guide.

Appeal deadlines

The 2026 appeal windows for River Forest 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 changed from $438,390 in 2025 to $840,000 in 2026. A change this large often reflects new construction, a reclassification or a record correction, so check it against the county record.
  • Assessor market value per square footThe current public record shows about $524 per square foot before any comparable-property adjustments.
  • Nearby comparison areaThis page starts the equity review with public records for the River Forest neighborhood and ZIP 60305.
  • Neighborhood value signalAmong 709 residential records in the same neighborhood, the average assessor market value is about $341 per square foot.
  • Area year-over-year signalNearby residential records with prior-year values moved about +16.9% on average.

Comparable assessments

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

  • 330 Park Ave River Forest, IL 60305
    1,555 sqft | $360/sqft | built 1949 | Similar size (1,555 vs 1,602 sqft); Built same year (1949); Similar lot size (8,910 vs 8,910 sqft)
    $560,000
  • 126 Park Ave River Forest, IL 60305
    1,665 sqft | $408/sqft | built 1950 | Similar size (1,665 vs 1,602 sqft); Similar age (1950 vs 1949); Similar lot size (9,050 vs 8,910 sqft)
    $680,000
  • 38 Gale Ave River Forest, IL 60305
    1,664 sqft | $325/sqft | built 1947 | Similar size (1,664 vs 1,602 sqft); Similar age (1947 vs 1949); Similar lot size (9,000 vs 8,910 sqft)
    $540,000
  • 15 Thatcher Ave River Forest, IL 60305
    1,555 sqft | $334/sqft | built 1946 | Similar size (1,555 vs 1,602 sqft); Similar age (1946 vs 1949); Similar lot size (9,650 vs 8,910 sqft)
    $520,000
  • 306 Park Ave River Forest, IL 60305
    1,468 sqft | $375/sqft | built 1949 | 8% smaller (1,468 vs 1,602 sqft); Built same year (1949); Similar lot size (8,910 vs 8,910 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 91.6% in 2026 from 2025.

Assessor market value by tax year, with the change from the previous year listed
Tax yearAssessor market valueChangeChange %
2026$840,000+$401,610+91.6%
2025$438,390$00.0%
2024$438,390−$21,610−4.7%
2023$460,000+$107,440+30.5%
2022$352,560$00.0%
2021$352,560−$23,830−6.3%
2020$376,390——
6-year total+$463,610+123.2%