Cook County Value

8117 W Oak Ave, Niles, IL 60714

4 bed / 2 bath, 2,480 sqft, built 1989, in Maine. Assessor market value for 2026: $574,910.

Cook County account 09144090060000

Assessor market value
$574,910
Tax year 2026 · before exemptions; the assessed value on your notice is 10% of it
Living area
2,480 sqft
$232 per sqft
Year built
1989
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 60714 and Maine assessment pages.

Local guide: Maine Township 2026 Property Tax Appeal Guide.

Appeal deadlines

The 2026 appeal windows for Maine 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 decreased 4.2% from $600,010 in 2025 to $574,910 in 2026.
  • Assessor market value per square footThe current public record shows about $232 per square foot before any comparable-property adjustments.
  • Nearby comparison areaThis page starts the equity review with public records for the Maine neighborhood and ZIP 60714.
  • Neighborhood value signalAmong 3,837 residential records in the same neighborhood, the average assessor market value is about $283 per square foot.
  • Area year-over-year signalNearby residential records with prior-year values moved about -1.2% on average.

Comparable assessments

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

  • 8115 W Oak Ave, Niles, IL 60714
    2,480 sqft | $238/sqft | built 1989 | Similar size (2,480 vs 2,480 sqft); Built same year (1989); Similar lot size (6,650 vs 6,650 sqft)
    $590,010
  • 8121 W Oak Ave, Niles, IL 60714
    2,523 sqft | $242/sqft | built 1991 | Similar size (2,523 vs 2,480 sqft); Similar age (1991 vs 1989); Similar lot size (6,650 vs 6,650 sqft)
    $610,010
  • 8123 W Oak Ave, Niles, IL 60714
    2,619 sqft | $241/sqft | built 1991 | 6% larger (2,619 vs 2,480 sqft); Similar age (1991 vs 1989); Similar lot size (6,650 vs 6,650 sqft)
    $630,010
  • 8306 W Oak Ave, Niles, IL 60714
    2,412 sqft | $229/sqft | built 1996 | Similar size (2,412 vs 2,480 sqft); Similar lot size (6,650 vs 6,650 sqft); Same quality (Average)
    $552,260
  • 8341 W Kay St, Niles, IL 60714
    2,326 sqft | $219/sqft | built 1990 | 6% smaller (2,326 vs 2,480 sqft); Similar age (1990 vs 1989); Similar lot size (6,676 vs 6,650 sqft)
    $509,570

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: . Showing the last prepared sales evidence while recent sales are refreshed. Matches consider available size, age, location and property characteristics. How comparisons work.

Value history

Down 4.2% in 2026 from 2025.

Assessor market value by tax year, with the change from the previous year listed
Tax yearAssessor market valueChangeChange %
2026$574,910−$25,100−4.2%
2025$600,010+$139,080+30.2%
2024$460,930——
2-year total+$113,980+24.7%