Cook County Value

12511 91st Ave Palos Park, IL 60464

2 bed / 2 bath, 2,519 sqft, built 1979. Assessor market value for 2026: $335,360.

Cook County account 23274120300000

Assessor market value
$335,360
Tax year 2026 · before exemptions; the assessed value on your notice is 10% of it
Living area
2,519 sqft
$133 per sqft
Year built
1979
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 60464 and CCAO Appraisal Area 30071 assessment pages.

Local guide: Palos Township 2026 Property Tax Appeal Guide.

Appeal deadlines

The 2026 appeal windows for Palos 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 19.7% from $280,230 in 2025 to $335,360 in 2026.
  • Assessor market value per square footThe current public record shows about $133 per square foot before any comparable-property adjustments.
  • Nearby comparison areaThis page starts the equity review with public records for ZIP 60464.
  • Neighborhood value signalAmong 448 residential records in the same neighborhood, the average assessor market value is about $258 per square foot.
  • Area year-over-year signalNearby residential records with prior-year values moved about +24.3% on average.

Comparable assessments

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

  • 12511 91st Ave Palos Park, IL 60464
    2,519 sqft | $133/sqft | built 1979 | Similar size (2,519 vs 2,519 sqft); Built same year (1979); Similar lot size (36,179 vs 36,300 sqft)
    $334,630
  • 8459 Hillside Dr Palos Park, IL 60464
    2,414 sqft | $224/sqft | built 1971 | Similar size (2,414 vs 2,519 sqft); Similar lot size (36,766 vs 36,300 sqft); Same quality (Average)
    $540,000
  • 12620 S 84th Ave Palos Park, IL 60464
    2,530 sqft | $221/sqft | built 1964 | Similar size (2,530 vs 2,519 sqft); Similar lot size (37,000 vs 36,300 sqft); Same quality (Average)
    $560,000
  • 11909 Lakewood Ave Palos Park, IL 60464
    2,454 sqft | $318/sqft | built 1975 | Similar size (2,454 vs 2,519 sqft); Similar age (1975 vs 1979); Lot 14% larger (41,382 vs 36,300 sqft)
    $780,000
  • 12652 Hillside Dr Palos Park, IL 60464
    2,263 sqft | $221/sqft | built 1978 | 10% smaller (2,263 vs 2,519 sqft); Similar age (1978 vs 1979); Similar lot size (39,099 vs 36,300 sqft)
    $500,000

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 19.7% in 2026 from 2025.

Assessor market value by tax year, with the change from the previous year listed
Tax yearAssessor market valueChangeChange %
2026$335,360+$55,130+19.7%
2025$280,230$00.0%
2024$280,230$00.0%
2023$280,230+$77,230+38.0%
2022$203,000$00.0%
2021$203,000+$100.0%
2020$202,990——
6-year total+$132,370+65.2%