Cook County Value

201 Heather Ln, Wilmette, IL 60091

3 bed / 2 bath, 1,968 sqft, built 1957, in New Trier. Assessor market value for 2026: $630,190.

Cook County account 05314230160000

Assessor market value
$630,190
Tax year 2026 · before exemptions; the assessed value on your notice is 10% of it
Living area
1,968 sqft
$320 per sqft
Year built
1957
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 5.9% from $670,000 in 2025 to $630,190 in 2026.
  • Assessor market value per square footThe current public record shows about $320 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 1,109 residential records in the same neighborhood, the average assessor market value is about $311 per square foot.
  • Area year-over-year signalNearby residential records with prior-year values moved about -2.1% on average.

Comparable assessments

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

  • 206 Heather Ln, Wilmette, IL 60091
    1,969 sqft | $316/sqft | built 1956 | Similar size (1,969 vs 1,968 sqft); Similar age (1956 vs 1957); Similar lot size (8,610 vs 8,476 sqft)
    $622,470
  • 230 Millbrook Ln, Wilmette, IL 60091
    2,005 sqft | $329/sqft | built 1959 | Similar size (2,005 vs 1,968 sqft); Similar age (1959 vs 1957); Similar lot size (8,631 vs 8,476 sqft)
    $660,000
  • 710 La Crosse Ave, Wilmette, IL 60091
    1,985 sqft | $211/sqft | built 1957 | Similar size (1,985 vs 1,968 sqft); Built same year (1957); Similar lot size (8,700 vs 8,476 sqft)
    $419,490
  • 3022 Hill St, Wilmette, IL 60091
    1,931 sqft | $337/sqft | built 1957 | Similar size (1,931 vs 1,968 sqft); Built same year (1957); Similar lot size (8,650 vs 8,476 sqft)
    $650,000
  • 223 Heather Ln, Wilmette, IL 60091
    1,940 sqft | $340/sqft | built 1956 | Similar size (1,940 vs 1,968 sqft); Similar age (1956 vs 1957); Similar lot size (8,625 vs 8,476 sqft)
    $660,010

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: . 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 5.9% in 2026 from 2025.

Assessor market value by tax year, with the change from the previous year listed
Tax yearAssessor market valueChangeChange %
2026$630,190−$39,810−5.9%
2025$670,000+$200,000+42.6%
2024$470,000$00.0%
2023$470,000$00.0%
2022$470,000+$153,560+48.5%
2021$316,440+$200.0%
2020$316,420——
6-year total+$313,770+99.2%