Cook County Value

436 Lake Ave, Wilmette, IL 60091

5 bed / 5 bath, 4,450 sqft, built 1906, in New Trier. Assessor market value for 2026: $2,082,970.

Cook County account 05261000070000

Assessor market value
$2,082,970
Tax year 2026 · before exemptions; the assessed value on your notice is 10% of it
Living area
4,450 sqft
$468 per sqft
Year built
1906
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 2.2% from $2,130,000 in 2025 to $2,082,970 in 2026.
  • Assessor market value per square footThe current public record shows about $468 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 809 residential records in the same neighborhood, the average assessor market value is about $540 per square foot.
  • Area year-over-year signalNearby residential records with prior-year values moved about -3.4% on average.

Comparable assessments

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

  • 516 Lake Ave, Wilmette, IL 60091
    4,446 sqft | $490/sqft | built 1905 | Similar size (4,446 vs 4,450 sqft); Similar age (1905 vs 1906); Similar lot size (11,700 vs 11,513 sqft)
    $2,180,000
  • 622 Forest Ave, Wilmette, IL 60091
    4,297 sqft | $500/sqft | built 1906 | Similar size (4,297 vs 4,450 sqft); Built same year (1906); Similar lot size (11,655 vs 11,513 sqft)
    $2,150,000
  • 928 Ashland Ave, Wilmette, IL 60091
    4,465 sqft | $477/sqft | built 1913 | Similar size (4,465 vs 4,450 sqft); Similar lot size (11,160 vs 11,513 sqft); Same quality (Average)
    $2,130,000
  • 1232 Greenwood Ave, Wilmette, IL 60091
    4,195 sqft | $503/sqft | built 1906 | 6% smaller (4,195 vs 4,450 sqft); Built same year (1906); Similar lot size (12,090 vs 11,513 sqft)
    $2,110,010
  • 832 Forest Ave, Wilmette, IL 60091
    4,728 sqft | $478/sqft | built 1905 | 6% larger (4,728 vs 4,450 sqft); Similar age (1905 vs 1906); Similar lot size (12,025 vs 11,513 sqft)
    $2,260,000

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

Down 2.2% in 2026 from 2025.

Assessor market value by tax year, with the change from the previous year listed
Tax yearAssessor market valueChangeChange %
2026$2,082,970−$47,030−2.2%
2025$2,130,000+$360,000+20.3%
2024$1,770,000$00.0%
2023$1,770,000$00.0%
2022$1,770,000+$365,680+26.0%
2021$1,404,320+$100.0%
2020$1,404,310——
6-year total+$678,660+48.3%