Cook County Value

1415 Gregory Ave, Wilmette, IL 60091

4 bed / 3 bath, 3,245 sqft, built 1993, in New Trier. Assessor market value for 2026: $1,479,560.

Cook County account 05334090060000

Assessor market value
$1,479,560
Tax year 2026 · before exemptions; the assessed value on your notice is 10% of it
Living area
3,245 sqft
$456 per sqft
Year built
1993
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 9.8% from $1,640,010 in 2025 to $1,479,560 in 2026.
  • Assessor market value per square footThe current public record shows about $456 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

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

  • 2004 Birchwood Ave, Wilmette, IL 60091
    3,254 sqft | $418/sqft | built 1994 | Similar size (3,254 vs 3,245 sqft); Similar age (1994 vs 1993); Similar lot size (8,850 vs 8,750 sqft)
    $1,360,010
  • 2020 Birchwood Ave, Wilmette, IL 60091
    3,382 sqft | $391/sqft | built 1996 | Similar size (3,382 vs 3,245 sqft); Similar age (1996 vs 1993); Similar lot size (8,850 vs 8,750 sqft)
    $1,321,510
  • 2004 Schiller Ave, Wilmette, IL 60091
    3,149 sqft | $434/sqft | built 1995 | Similar size (3,149 vs 3,245 sqft); Similar age (1995 vs 1993); Similar lot size (8,850 vs 8,750 sqft)
    $1,366,160
  • 1411 Maple Ave, Wilmette, IL 60091
    3,158 sqft | $570/sqft | built 2001 | Similar size (3,158 vs 3,245 sqft); Similar lot size (8,550 vs 8,750 sqft); Same quality (Average)
    $1,800,010
  • 1942 Birchwood Ave, Wilmette, IL 60091
    3,189 sqft | $444/sqft | built 2000 | Similar size (3,189 vs 3,245 sqft); Similar lot size (8,850 vs 8,750 sqft); Same quality (Average)
    $1,417,170

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 9.8% in 2026 from 2025.

Assessor market value by tax year, with the change from the previous year listed
Tax yearAssessor market valueChangeChange %
2026$1,479,560−$160,450−9.8%
2025$1,640,010+$602,730+58.1%
2024$1,037,280——
2-year total+$442,280+42.6%