Cook County Value

234 Greenleaf Ave, Wilmette, IL 60091

3 bed / 2 bath, 1,937 sqft, built 1921, in New Trier. Assessor market value for 2026: $943,250.

Cook County account 05351090160000

Assessor market value
$943,250
Tax year 2026 · before exemptions; the assessed value on your notice is 10% of it
Living area
1,937 sqft
$487 per sqft
Year built
1921
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 6.8% from $1,012,450 in 2025 to $943,250 in 2026.
  • Assessor market value per square footThe current public record shows about $487 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 807 residential records in the same neighborhood, the average assessor market value is about $481 per square foot.
  • Area year-over-year signalNearby residential records with prior-year values moved about -2.6% on average.

Comparable assessments

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

  • 140 Maple Ave, Wilmette, IL 60091
    1,918 sqft | $448/sqft | built 1920 | Similar size (1,918 vs 1,937 sqft); Similar age (1920 vs 1921); Similar lot size (9,000 vs 9,200 sqft)
    $860,000
  • 228 Maple Ave, Wilmette, IL 60091
    1,974 sqft | $496/sqft | built 1927 | Similar size (1,974 vs 1,937 sqft); Similar lot size (9,000 vs 9,200 sqft); Same quality (Average)
    $980,000
  • 526 Greenleaf Ave, Wilmette, IL 60091
    1,900 sqft | $647/sqft | built 1916 | Similar size (1,900 vs 1,937 sqft); Similar age (1916 vs 1921); Similar lot size (9,200 vs 9,200 sqft)
    $1,230,000
  • 329 Washington Ave, Wilmette, IL 60091
    1,942 sqft | $480/sqft | built 1924 | Similar size (1,942 vs 1,937 sqft); Similar age (1924 vs 1921); Similar lot size (8,910 vs 9,200 sqft)
    $932,190
  • 240 Linden Ave, Wilmette, IL 60091
    2,014 sqft | $478/sqft | built 1922 | Similar size (2,014 vs 1,937 sqft); Similar age (1922 vs 1921); Similar lot size (9,800 vs 9,200 sqft)
    $963,580

Recent comparable sales

Sales selected by similarity to the subject property.

  • 526 Greenleaf Ave, Wilmette, IL 60091
    1,900 sqft | $895/sqft | built 1916 | Similar size (1,900 sqft); Moderate age difference (5 years older); Within 1 bedroom (4 vs 3)
    $1,700,000
  • 2323 Lake Ave, Wilmette, IL 60091
    2,264 sqft | $448/sqft | built 1931 | Moderate age difference (10 years newer); Within 1 bedroom (4 vs 3)
    $1,015,000

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 6.8% in 2026 from 2025.

Assessor market value by tax year, with the change from the previous year listed
Tax yearAssessor market valueChangeChange %
2026$943,250−$69,200−6.8%
2025$1,012,450+$187,070+22.7%
2024$825,380$00.0%
2023$825,380−$85,870−9.4%
2022$911,250+$272,040+42.6%
2021$639,210+$100.0%
2020$639,200——
6-year total+$304,050+47.6%