Cook County Value

617 Laporte Ave, Wilmette, IL 60091

3 bed / 2 bath, 1,419 sqft, built 1958, in New Trier. Assessor market value for 2026: $354,750.

Cook County account 05312180240000

Assessor market value
$354,750
Tax year 2026 · before exemptions; the assessed value on your notice is 10% of it
Living area
1,419 sqft
$250 per sqft
Year built
1958
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 $354,750 in 2025 to $354,750 in 2026.
  • Assessor market value per square footThe current public record shows about $250 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

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

  • 603 Lavergne Ave, Wilmette, IL 60091
    1,409 sqft | $296/sqft | built 1960 | Similar size (1,409 vs 1,419 sqft); Similar age (1960 vs 1958); Similar lot size (5,280 vs 5,280 sqft)
    $416,980
  • 535 Lavergne Ave, Wilmette, IL 60091
    1,403 sqft | $342/sqft | built 1961 | Similar size (1,403 vs 1,419 sqft); Similar age (1961 vs 1958); Similar lot size (5,280 vs 5,280 sqft)
    $480,000
  • 722 Lawler Ave, Wilmette, IL 60091
    1,409 sqft | $298/sqft | built 1959 | Similar size (1,409 vs 1,419 sqft); Similar age (1959 vs 1958); Similar lot size (5,280 vs 5,280 sqft)
    $420,000
  • 514 Lawler Ave Hse, Wilmette, IL 60091
    1,401 sqft | $300/sqft | built 1957 | Similar size (1,401 vs 1,419 sqft); Similar age (1957 vs 1958); Similar lot size (5,280 vs 5,280 sqft)
    $420,000
  • 616 Lamon Ave, Wilmette, IL 60091
    1,430 sqft | $311/sqft | built 1959 | Similar size (1,430 vs 1,419 sqft); Similar age (1959 vs 1958); Similar lot size (5,280 vs 5,280 sqft)
    $445,120

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$354,750$00.0%
2025$354,750+$80,250+29.2%
2024$274,500——
2-year total+$80,250+29.2%