Cook County Value

1621 Lake Ave, Wilmette, IL 60091

4 bed / 1 bath, 1,936 sqft, built 1906, in New Trier. Assessor market value for 2026: $757,940.

Cook County account 05332010130000

Assessor market value
$757,940
Tax year 2026 · before exemptions; the assessed value on your notice is 10% of it
Living area
1,936 sqft
$391 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 8.7% from $830,000 in 2025 to $757,940 in 2026.
  • Assessor market value per square footThe current public record shows about $392 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

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

  • 120 5th St, Wilmette, IL 60091
    1,956 sqft | $477/sqft | built 1906 | Similar size (1,956 vs 1,936 sqft); Built same year (1906); Similar lot size (7,125 vs 6,600 sqft)
    $933,370
  • 220 Central Park Ave, Wilmette, IL 60091
    2,009 sqft | $450/sqft | built 1906 | Similar size (2,009 vs 1,936 sqft); Built same year (1906); Similar lot size (6,950 vs 6,600 sqft)
    $903,310
  • 418 Park Ave, Wilmette, IL 60091
    1,940 sqft | $516/sqft | built 1898 | Similar size (1,940 vs 1,936 sqft); Similar lot size (6,400 vs 6,600 sqft); Same quality (Average)
    $1,001,850
  • 201 15th St, Wilmette, IL 60091
    1,965 sqft | $412/sqft | built 1916 | Similar size (1,965 vs 1,936 sqft); Similar lot size (6,579 vs 6,600 sqft); Same quality (Average)
    $809,020
  • 1603 Wilmette Ave, Wilmette, IL 60091
    1,928 sqft | $437/sqft | built 1896 | Similar size (1,928 vs 1,936 sqft); Similar lot size (6,440 vs 6,600 sqft); Same quality (Average)
    $841,880

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 8.7% in 2026 from 2025.

Assessor market value by tax year, with the change from the previous year listed
Tax yearAssessor market valueChangeChange %
2026$757,940−$72,060−8.7%
2025$830,000+$305,000+58.1%
2024$525,000$00.0%
2023$525,000−$105,000−16.7%
2022$630,000+$104,990+20.0%
2021$525,010−$102,690−16.4%
2020$627,700——
6-year total+$130,240+20.7%