Cook County Value

111 17th St, Wilmette, IL 60091

3 bed / 1 bath, 1,984 sqft, built 1939, in New Trier. Assessor market value for 2026: $840,800.

Cook County account 05334010480000

Assessor market value
$840,800
Tax year 2026 · before exemptions; the assessed value on your notice is 10% of it
Living area
1,984 sqft
$424 per sqft
Year built
1939
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 8.6% from $920,000 in 2025 to $840,800 in 2026.
  • Assessor market value per square footThe current public record shows about $424 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 1,944 residential records in the same neighborhood, the average assessor market value is about $372 per square foot.
  • Area year-over-year signalNearby residential records with prior-year values moved about -2.2% on average.

Comparable assessments

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

  • 1916 Highland Ave, Wilmette, IL 60091
    2,084 sqft | $382/sqft | built 1936 | 5% larger (2,084 vs 1,984 sqft); Similar age (1936 vs 1939); Similar lot size (6,600 vs 6,400 sqft)
    $796,730
  • 207 17th St, Wilmette, IL 60091
    1,981 sqft | $448/sqft | built 1928 | Similar size (1,981 vs 1,984 sqft); Similar lot size (6,400 vs 6,400 sqft); Same quality (Average)
    $887,180
  • 141 Sterling Ln, Wilmette, IL 60091
    1,966 sqft | $422/sqft | built 1944 | Similar size (1,966 vs 1,984 sqft); Similar age (1944 vs 1939); Similar lot size (6,522 vs 6,400 sqft)
    $829,880
  • 1925 Washington Ave, Wilmette, IL 60091
    2,021 sqft | $390/sqft | built 1929 | Similar size (2,021 vs 1,984 sqft); Similar lot size (6,600 vs 6,400 sqft); Same quality (Average)
    $788,350
  • 1920 Central Ave, Wilmette, IL 60091
    1,835 sqft | $407/sqft | built 1940 | 8% smaller (1,835 vs 1,984 sqft); Similar age (1940 vs 1939); Similar lot size (6,600 vs 6,400 sqft)
    $746,350

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 8.6% in 2026 from 2025.

Assessor market value by tax year, with the change from the previous year listed
Tax yearAssessor market valueChangeChange %
2026$840,800−$79,200−8.6%
2025$920,000+$225,500+32.5%
2024$694,500−$33,530−4.6%
2023$728,030−$61,970−7.8%
2022$790,000+$393,630+99.3%
2021$396,370$00.0%
2020$396,370——
6-year total+$444,430+112.1%