Cook County Value

1246 Gregory Ave, Wilmette, IL 60091

5 bed / 2 bath, 2,701 sqft, built 1898, in New Trier. Assessor market value for 2026: $1,252,670.

Cook County account 05343050150000

Assessor market value
$1,252,670
Tax year 2026 · before exemptions; the assessed value on your notice is 10% of it
Living area
2,701 sqft
$464 per sqft
Year built
1898
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 1.9% from $1,277,400 in 2025 to $1,252,670 in 2026.
  • Assessor market value per square footThe current public record shows about $464 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.

  • 206 6th St, Wilmette, IL 60091
    2,772 sqft | $483/sqft | built 1903 | Similar size (2,772 vs 2,701 sqft); Similar age (1903 vs 1898); Similar lot size (8,550 vs 8,550 sqft)
    $1,340,010
  • 214 6th St, Wilmette, IL 60091
    2,769 sqft | $414/sqft | built 1903 | Similar size (2,769 vs 2,701 sqft); Similar age (1903 vs 1898); Similar lot size (8,500 vs 8,550 sqft)
    $1,145,000
  • 321 Park Ave 1, Wilmette, IL 60091
    2,625 sqft | $396/sqft | built 1902 | Similar size (2,625 vs 2,701 sqft); Similar age (1902 vs 1898); Similar lot size (9,395 vs 8,550 sqft)
    $1,040,000
  • 1423 Gregory Ave, Wilmette, IL 60091
    2,617 sqft | $470/sqft | built 1894 | Similar size (2,617 vs 2,701 sqft); Similar age (1894 vs 1898); Similar lot size (8,750 vs 8,550 sqft)
    $1,230,010
  • 1321 Maple Ave, Wilmette, IL 60091
    2,850 sqft | $451/sqft | built 1895 | 6% larger (2,850 vs 2,701 sqft); Similar age (1895 vs 1898); Similar lot size (8,550 vs 8,550 sqft)
    $1,285,010

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 1.9% in 2026 from 2025.

Assessor market value by tax year, with the change from the previous year listed
Tax yearAssessor market valueChangeChange %
2026$1,252,670−$24,730−1.9%
2025$1,277,400+$339,200+36.2%
2024$938,200−$92,110−8.9%
2023$1,030,310−$49,700−4.6%
2022$1,080,010+$333,640+44.7%
2021$746,370+$100.0%
2020$746,360——
6-year total+$506,310+67.8%