Cook County Value

921 Greendale Ave, Park Ridge, IL 60068

4 bed / 2 bath, 1,794 sqft, built 1970, in Maine. Assessor market value for 2026: $540,000.

Cook County account 09233170010000

Assessor market value
$540,000
Tax year 2026 · before exemptions; the assessed value on your notice is 10% of it
Living area
1,794 sqft
$301 per sqft
Year built
1970
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 60068 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 stayed about the same, from $540,000 in 2025 to $540,000 in 2026.
  • Assessor market value per square footThe current public record shows about $301 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 60068.
  • Neighborhood value signalAmong 1,423 residential records in the same neighborhood, the average assessor market value is about $285 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.

  • 8321 N Western Ave, Niles, IL 60714
    1,790 sqft | $294/sqft | built 1969 | Similar size (1,790 vs 1,794 sqft); Similar age (1969 vs 1970); Similar lot size (7,380 vs 7,353 sqft)
    $526,090
  • 1601 Manor Ln, Park Ridge, IL 60068
    1,780 sqft | $309/sqft | built 1967 | Similar size (1,780 vs 1,794 sqft); Similar age (1967 vs 1970); Similar lot size (7,260 vs 7,353 sqft)
    $550,000
  • 1600 Birch St, Park Ridge, IL 60068
    1,776 sqft | $315/sqft | built 1966 | Similar size (1,776 vs 1,794 sqft); Similar age (1966 vs 1970); Similar lot size (7,198 vs 7,353 sqft)
    $560,000
  • 1308 N Western Ave, Park Ridge, IL 60068
    1,792 sqft | $297/sqft | built 1966 | Similar size (1,792 vs 1,794 sqft); Similar age (1966 vs 1970); Similar lot size (7,705 vs 7,353 sqft)
    $533,020
  • 8603 W Madison Dr, Niles, IL 60714
    1,751 sqft | $280/sqft | built 1968 | Similar size (1,751 vs 1,794 sqft); Similar age (1968 vs 1970); Similar lot size (6,960 vs 7,353 sqft)
    $490,000

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

No change in 2026 from 2025.

Assessor market value by tax year, with the change from the previous year listed
Tax yearAssessor market valueChangeChange %
2026$540,000$00.0%
2025$540,000+$50,000+10.2%
2024$490,000$00.0%
2023$490,000$00.0%
2022$490,000+$34,570+7.6%
2021$455,430+$200.0%
2020$455,410——
6-year total+$84,590+18.6%