Cook County Value

1021 Greenleaf Ave, Wilmette, IL 60091

5 bed / 2 bath, 3,280 sqft, built 1916, in New Trier. Assessor market value for 2026: $1,492,180.

Cook County account 05341180050000

Assessor market value
$1,492,180
Tax year 2026 · before exemptions; the assessed value on your notice is 10% of it
Living area
3,280 sqft
$455 per sqft
Year built
1916
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 10.9% from $1,674,740 in 2025 to $1,492,180 in 2026.
  • Assessor market value per square footThe current public record shows about $455 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 1,671 residential records in the same neighborhood, the average assessor market value is about $458 per square foot.
  • Area year-over-year signalNearby residential records with prior-year values moved about -2.4% on average.

Comparable assessments

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

  • 1012 Linden Ave, Wilmette, IL 60091
    3,276 sqft | $458/sqft | built 1914 | Similar size (3,276 vs 3,280 sqft); Similar age (1914 vs 1916); Similar lot size (10,000 vs 9,600 sqft)
    $1,498,800
  • 1414 Gregory Ave, Wilmette, IL 60091
    3,334 sqft | $431/sqft | built 1916 | Similar size (3,334 vs 3,280 sqft); Built same year (1916); Lot 11% smaller (8,550 vs 9,600 sqft)
    $1,436,450
  • 628 Isabella St, Wilmette, IL 60091
    3,211 sqft | $405/sqft | built 1913 | Similar size (3,211 vs 3,280 sqft); Similar age (1913 vs 1916); Similar lot size (9,000 vs 9,600 sqft)
    $1,300,750
  • 829 Park Ave, Wilmette, IL 60091
    3,132 sqft | $450/sqft | built 1913 | Similar size (3,132 vs 3,280 sqft); Similar age (1913 vs 1916); Similar lot size (10,000 vs 9,600 sqft)
    $1,410,000
  • 1024 Central Ave, Wilmette, IL 60091
    3,320 sqft | $440/sqft | built 1912 | Similar size (3,320 vs 3,280 sqft); Similar age (1912 vs 1916); Lot 12% larger (10,800 vs 9,600 sqft)
    $1,460,000

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: . 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 10.9% in 2026 from 2025.

Assessor market value by tax year, with the change from the previous year listed
Tax yearAssessor market valueChangeChange %
2026$1,492,180−$182,560−10.9%
2025$1,674,740+$511,000+43.9%
2024$1,163,740$00.0%
2023$1,163,740−$58,020−4.7%
2022$1,221,760+$404,260+49.5%
2021$817,500−$49,560−5.7%
2020$867,060——
6-year total+$625,120+72.1%