Cook County Value

921 10th St, Wilmette, IL 60091

4 bed / 2 bath, 2,349 sqft, built 1899, in New Trier. Assessor market value for 2026: $982,910.

Cook County account 05273220060000

Assessor market value
$982,910
Tax year 2026 · before exemptions; the assessed value on your notice is 10% of it
Living area
2,349 sqft
$418 per sqft
Year built
1899
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 9.0% from $1,080,010 in 2025 to $982,910 in 2026.
  • Assessor market value per square footThe current public record shows about $418 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 809 residential records in the same neighborhood, the average assessor market value is about $540 per square foot.
  • Area year-over-year signalNearby residential records with prior-year values moved about -3.4% on average.

Comparable assessments

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

  • 931 12th St, Wilmette, IL 60091
    2,254 sqft | $460/sqft | built 1903 | Similar size (2,254 vs 2,349 sqft); Similar age (1903 vs 1899); Lot 19% smaller (4,255 vs 5,250 sqft)
    $1,036,930
  • 1018 11th St, Wilmette, IL 60091
    2,655 sqft | $366/sqft | built 1908 | 13% larger (2,655 vs 2,349 sqft); Similar lot size (5,040 vs 5,250 sqft); Same quality (Average)
    $970,950
  • 915 11th St, Wilmette, IL 60091
    2,155 sqft | $483/sqft | built 1913 | 8% smaller (2,155 vs 2,349 sqft); Similar lot size (5,100 vs 5,250 sqft); Same quality (Average)
    $1,040,000
  • 1114 Lake Ave, Wilmette, IL 60091
    2,767 sqft | $412/sqft | built 1888 | Lot 14% larger (6,000 vs 5,250 sqft); Same quality (Average); Same neighborhood
    $1,140,000
  • 1133 Elmwood Ave, Wilmette, IL 60091
    2,565 sqft | $386/sqft | built 1910 | 9% larger (2,565 vs 2,349 sqft); Same quality (Average); Same bed/bath (4/2)
    $990,000

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 9.0% in 2026 from 2025.

Assessor market value by tax year, with the change from the previous year listed
Tax yearAssessor market valueChangeChange %
2026$982,910−$97,100−9.0%
2025$1,080,010+$292,240+37.1%
2024$787,770−$90,210−10.3%
2023$877,980−$42,030−4.6%
2022$920,010+$355,060+62.8%
2021$564,950$00.0%
2020$564,950——
6-year total+$417,960+74.0%