Cook County Value

342 Greenleaf Ave, Wilmette, IL 60091

5 bed / 4 bath, 2,995 sqft, built 1947, in New Trier. Assessor market value for 2026: $1,338,630.

Cook County account 05351080140000

Assessor market value
$1,338,630
Tax year 2026 · before exemptions; the assessed value on your notice is 10% of it
Living area
2,995 sqft
$447 per sqft
Year built
1947
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 11.3% from $1,510,000 in 2025 to $1,338,630 in 2026.
  • Assessor market value per square footThe current public record shows about $447 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.

  • 219 Linden Ave, Wilmette, IL 60091
    2,922 sqft | $431/sqft | built 1940 | Similar size (2,922 vs 2,995 sqft); Similar lot size (8,000 vs 7,912 sqft); Same quality (Average)
    $1,259,320
  • 146 Laurel Ave, Wilmette, IL 60091
    3,216 sqft | $641/sqft | built 1936 | 7% larger (3,216 vs 2,995 sqft); Similar lot size (8,000 vs 7,912 sqft); Same quality (Average)
    $2,062,720
  • 522 Maple Ave, Wilmette, IL 60091
    3,127 sqft | $424/sqft | built 1942 | Similar size (3,127 vs 2,995 sqft); Similar age (1942 vs 1947); Lot 14% larger (9,000 vs 7,912 sqft)
    $1,324,410
  • 518 8th St, Wilmette, IL 60091
    2,650 sqft | $447/sqft | built 1933 | 12% smaller (2,650 vs 2,995 sqft); Similar lot size (8,000 vs 7,912 sqft); Same quality (Average)
    $1,184,850
  • 120 Maple Ave, Wilmette, IL 60091
    2,865 sqft | $415/sqft | built 1956 | Similar size (2,865 vs 2,995 sqft); Lot 14% larger (9,000 vs 7,912 sqft); Same quality (Average)
    $1,190,000

Recent comparable sales

Sales selected by similarity to the subject property.

  • 108 17th St, Wilmette, IL 60091
    June-29-2026 | 3,493 sqft | $417/sqft | built 1941 | Moderate age difference (6 years older); Sold after the valuation date; Within 1 bedroom (4 vs 5)
    $1,457,000
  • 910 Romona Rd, Wilmette, IL 60091
    2,972 sqft | $522/sqft | built 1951 | Similar size (2,972 sqft); Moderate age difference (4 years newer); Within 1 bedroom (4 vs 5)
    $1,550,000

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 11.3% in 2026 from 2025.

Assessor market value by tax year, with the change from the previous year listed
Tax yearAssessor market valueChangeChange %
2026$1,338,630−$171,370−11.3%
2025$1,510,000+$290,000+23.8%
2024$1,220,000$00.0%
2023$1,220,000$00.0%
2022$1,220,000+$494,730+68.2%
2021$725,270+$75,010+11.5%
2020$650,260——
6-year total+$688,370+105.9%