Cook County Value

6566 N Oliphant Ave, Chicago, IL 60631

3 bed / 2 bath, 1,794 sqft, built 1956, in Jefferson. Assessor market value for 2025: $460,510.

Cook County account 09363130310000

Assessor market value
$460,510
Tax year 2025 · before exemptions; the assessed value on your notice is 10% of it
Living area
1,794 sqft
$257 per sqft
Year built
1956
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 60631 and Jefferson assessment pages.

Appeal deadlines

Jefferson 2026 appeal dates have not been published yet.

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 stayed about the same, from $460,510 in 2024 to $460,510 in 2025.
  • Assessor market value per square footThe current public record shows about $257 per square foot before any comparable-property adjustments.
  • Nearby comparison areaThis page starts the equity review with public records for the Jefferson neighborhood and ZIP 60631.
  • Neighborhood value signalAmong 1,989 residential records in the same neighborhood, the average assessor market value is about $282 per square foot.
  • Area year-over-year signalNearby residential records with prior-year values stayed about flat on average.

Comparable assessments

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

  • 7118 N Ottawa Ave, Chicago, IL 60631
    1,776 sqft | $253/sqft | built 1956 | Similar size (1,776 vs 1,794 sqft); Built same year (1956); Lot 10% larger (6,200 vs 5,625 sqft)
    $450,000
  • 7121 N Olcott Ave, Chicago, IL 60631
    1,824 sqft | $267/sqft | built 1950 | Similar size (1,824 vs 1,794 sqft); Similar lot size (5,271 vs 5,625 sqft); Same quality (Average)
    $486,190
  • 6498 N Oxford Ave, Chicago, IL 60631
    1,773 sqft | $254/sqft | built 1951 | Similar size (1,773 vs 1,794 sqft); Similar age (1951 vs 1956); Lot 11% smaller (5,022 vs 5,625 sqft)
    $450,000
  • 7320 W Devon Ave, Chicago, IL 60631
    1,948 sqft | $236/sqft | built 1955 | 9% larger (1,948 vs 1,794 sqft); Similar age (1955 vs 1956); Similar lot size (5,800 vs 5,625 sqft)
    $460,000
  • 7031 N Ozanam Ave, Chicago, IL 60631
    1,792 sqft | $229/sqft | built 1955 | Similar size (1,792 vs 1,794 sqft); Similar age (1955 vs 1956); Lot 17% larger (6,600 vs 5,625 sqft)
    $410,000

Recent comparable sales

Sales selected by similarity to the subject property.

Public appraisal comparison for 2025. 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

Down 4.1% in 2025 from 2024.

Assessor market value by tax year, with the change from the previous year listed
Tax yearAssessor market valueChangeChange %
2025$460,510−$19,500−4.1%
2024$480,010+$151,010+45.9%
2023$329,000$00.0%
2022$329,000−$171,000−34.2%
2021$500,000+$80,490+19.2%
2020$419,510——
5-year total+$41,000+9.8%