Cook County Value

218 17th St, Wilmette, IL 60091

4 bed / 2 bath, 3,074 sqft, built 1927, in New Trier. Assessor market value for 2026: $1,315,530.

Cook County account 05334020110000

Small or uncertain difference

about $8,000

8 similar homes nearby point to a value about $8,000 lower than yours, a small or uncertain difference.

Assessor market value$1,315,530
Similar homes$1,307,402
$8,128 gap · bars start at $0

How sure: High · 8 similar homes (5 shown below) · public records only

Assessor market value
$1,315,530
Tax year 2026 · before exemptions; the assessed value on your notice is 10% of it
Living area
3,074 sqft
$428 per sqft
Year built
1927
Average quality

Why we think so

Similar homes' assessments

Weak

5 of 8 similar homes are assessed lower per square foot. Their similarity-weighted median is $424.49/sqft, but land is valued apart from the home, and some of them have less land value per square foot of home than yours, which counts as $208,000. Counting your land in place of theirs where theirs is less, they support a value of $1,307,402.

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 stayed about the same, from $1,315,530 in 2025 to $1,315,530 in 2026.
  • Assessor market value per square footThe current public record shows about $428 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.

  • 318 Prairie Ave, Wilmette, IL 60091
    3,144 sqft | $356/sqft | built 1922 | Similar size (3,144 vs 3,074 sqft); Similar age (1922 vs 1927); Similar lot size (6,729 vs 6,400 sqft)
    $1,120,000
  • 228 Wood Ct, Wilmette, IL 60091
    3,039 sqft | $424/sqft | built 1917 | Similar size (3,039 vs 3,074 sqft); Similar lot size (6,250 vs 6,400 sqft); Same quality (Average)
    $1,290,010
  • 104 17th St, Wilmette, IL 60091
    2,873 sqft | $397/sqft | built 1931 | 6% smaller (2,873 vs 3,074 sqft); Similar age (1931 vs 1927); Similar lot size (6,400 vs 6,400 sqft)
    $1,140,000
  • 318 17th St, Wilmette, IL 60091
    2,848 sqft | $428/sqft | built 1929 | 7% smaller (2,848 vs 3,074 sqft); Similar age (1929 vs 1927); Similar lot size (6,400 vs 6,400 sqft)
    $1,220,000
  • 514 Isabella St, Wilmette, IL 60091
    2,960 sqft | $420/sqft | built 1927 | Similar size (2,960 vs 3,074 sqft); Built same year (1927); Similar lot size (5,907 vs 6,400 sqft)
    $1,242,780

Recent comparable sales

Sales selected by similarity to the subject property.

  • 108 17th St, Wilmette, IL 60091
    June-29-2026 | 3,493 sqft | $417/sqft | built 1941 | 14% size difference (3,493 sqft); Sold after the valuation date; Same beds (4)
    $1,457,000
  • 111 Park Ave, Wilmette, IL 60091
    2,672 sqft | $603/sqft | built 1923 | 13% size difference (2,672 sqft); Moderate age difference (4 years older); Same beds (4)
    $1,610,000
  • 1526 Washington Ave, Wilmette, IL 60091
    2,642 sqft | $511/sqft | built 1917 | 14% size difference (2,642 sqft); Moderate age difference (10 years older); Within 1 bedroom (3 vs 4)
    $1,350,000

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

No change in 2026 from 2025.

Assessor market value by tax year, with the change from the previous year listed
Tax yearAssessor market valueChangeChange %
2026$1,315,530$00.0%
2025$1,315,530+$379,940+40.6%
2024$935,590$00.0%
2023$935,590−$84,410−8.3%
2022$1,020,000+$295,160+40.7%
2021$724,840$00.0%
2020$724,840——
6-year total+$590,690+81.5%