Cook County Value

1201 Dartmouth St, Wilmette, IL 60091

4 bed / 2 bath, 3,355 sqft, built 1994, in New Trier. Assessor market value for 2026: $1,420,000.

Cook County account 05294040540000

Assessor market value
$1,420,000
Tax year 2026 · before exemptions; the assessed value on your notice is 10% of it
Living area
3,355 sqft
$423 per sqft
Year built
1994
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 stayed about the same, from $1,420,000 in 2025 to $1,420,000 in 2026.
  • Assessor market value per square footThe current public record shows about $423 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 1,584 residential records in the same neighborhood, the average assessor market value is about $440 per square foot.
  • Area year-over-year signalNearby residential records with prior-year values moved about -3.9% on average.

Comparable assessments

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

  • 1715 Forest Ave, Wilmette, IL 60091
    3,350 sqft | $485/sqft | built 1996 | Similar size (3,350 vs 3,355 sqft); Similar age (1996 vs 1994); Similar lot size (8,100 vs 8,469 sqft)
    $1,625,000
  • 2301 Greenwood Ave, Wilmette, IL 60091
    3,298 sqft | $395/sqft | built 2000 | Similar size (3,298 vs 3,355 sqft); Similar lot size (8,640 vs 8,469 sqft); Same quality (Average)
    $1,301,170
  • 542 Wayland Ave Kenilworth, IL 60043
    3,308 sqft | $438/sqft | built 1994 | Similar size (3,308 vs 3,355 sqft); Built same year (1994); Similar lot size (9,163 vs 8,469 sqft)
    $1,450,000
  • 1226 Colgate St, Wilmette, IL 60091
    3,437 sqft | $431/sqft | built 1994 | Similar size (3,437 vs 3,355 sqft); Built same year (1994); Similar lot size (7,656 vs 8,469 sqft)
    $1,482,310
  • 1709 Forest Ave, Wilmette, IL 60091
    3,202 sqft | $500/sqft | built 2000 | Similar size (3,202 vs 3,355 sqft); Similar lot size (8,100 vs 8,469 sqft); Same quality (Average)
    $1,600,000

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: . 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$1,420,000$00.0%
2025$1,420,000+$500,000+54.3%
2024$920,000——
2-year total+$500,000+54.3%