Cook County Value

909 Ashland Ave, Wilmette, IL 60091

7 bed / 3 bath, 2,816 sqft, built 1915, in New Trier. Assessor market value for 2026: $1,569,920.

Cook County account 05274050070000

Assessor market value
$1,569,920
Tax year 2026 · before exemptions; the assessed value on your notice is 10% of it
Living area
2,816 sqft
$558 per sqft
Year built
1915
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 60091 and New Trier assessment pages.

Local guide: New Trier Township 2026 Property Tax Appeal Guide.

Appeal deadlines

The 2026 appeal windows for New Trier 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 11.8% from $1,780,010 in 2025 to $1,569,920 in 2026.
  • Assessor market value per square footThe current public record shows about $558 per square foot before any comparable-property adjustments.
  • Nearby comparison areaThis page starts the equity review with public records for the New Trier neighborhood and ZIP 60091.
  • Neighborhood value signalAmong 809 residential records in the same neighborhood, the average assessor market value is about $540 per square foot.
  • Area year-over-year signalNearby residential records with prior-year values moved about -3.4% on average.

Comparable assessments

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

  • 1219 Ashland Ave, Wilmette, IL 60091
    2,900 sqft | $586/sqft | built 1920 | Similar size (2,900 vs 2,816 sqft); Similar age (1920 vs 1915); Similar lot size (13,950 vs 13,950 sqft)
    $1,700,380
  • 1356 Greenwood Ave, Wilmette, IL 60091
    2,866 sqft | $548/sqft | built 1910 | Similar size (2,866 vs 2,816 sqft); Similar age (1910 vs 1915); Similar lot size (13,340 vs 13,950 sqft)
    $1,570,000
  • 1112 Sheridan Rd, Wilmette, IL 60091
    2,870 sqft | $561/sqft | built 1921 | Similar size (2,870 vs 2,816 sqft); Similar lot size (13,500 vs 13,950 sqft); Same quality (Average)
    $1,610,000
  • 1101 Ashland Ave, Wilmette, IL 60091
    2,838 sqft | $662/sqft | built 1922 | Similar size (2,838 vs 2,816 sqft); Similar lot size (13,200 vs 13,950 sqft); Same quality (Average)
    $1,880,000
  • 730 Ashland Ave, Wilmette, IL 60091
    2,704 sqft | $573/sqft | built 1914 | Similar size (2,704 vs 2,816 sqft); Similar age (1914 vs 1915); Similar lot size (13,020 vs 13,950 sqft)
    $1,548,180

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

Down 11.8% in 2026 from 2025.

Assessor market value by tax year, with the change from the previous year listed
Tax yearAssessor market valueChangeChange %
2026$1,569,920−$210,090−11.8%
2025$1,780,010+$483,150+37.3%
2024$1,296,860−$67,860−5.0%
2023$1,364,720−$205,290−13.1%
2022$1,570,010+$742,010+89.6%
2021$828,000$00.0%
2020$828,000——
6-year total+$741,920+89.6%