Cook County Value

121 Central Park Ave, Wilmette, IL 60091

4 bed / 2 bath, 2,023 sqft, built 1932, in New Trier. Assessor market value for 2026: $787,810.

Cook County account 05334020680000

In line with similar homes

8 similar homes nearby support a value at or above your county value.

Assessor market value$787,810
Similar homes$913,020
No gap: similar homes are at or above the county value · bars start at $0

How sure: High · 8 similar homes (5 shown below) · public records only

Assessor market value
$787,810
Tax year 2026 · before exemptions; the assessed value on your notice is 10% of it
Living area
2,023 sqft
$389 per sqft
Year built
1932
Average quality

What we found

Similar homes' assessments

Weak

0 of 8 similar homes are assessed lower per square foot. Their similarity-weighted median is $449.16/sqft, but land is valued apart from the home, and some of them have less land value per square foot of home than yours, which counts as $211,250. Counting your land in place of theirs where theirs is less, they support a value of $913,020.

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 12.1% from $896,270 in 2025 to $787,810 in 2026.
  • Assessor market value per square footThe current public record shows about $389 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

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

  • 128 3rd St, Wilmette, IL 60091
    2,048 sqft | $444/sqft | built 1939 | Similar size (2,048 vs 2,023 sqft); Similar lot size (6,370 vs 6,500 sqft); Same quality (Average)
    $910,010
  • 150 Prairie Ave, Wilmette, IL 60091
    1,962 sqft | $457/sqft | built 1927 | Similar size (1,962 vs 2,023 sqft); Similar age (1927 vs 1932); Similar lot size (6,579 vs 6,500 sqft)
    $897,380
  • 111 Central Park Ave, Wilmette, IL 60091
    1,981 sqft | $495/sqft | built 1928 | Similar size (1,981 vs 2,023 sqft); Similar age (1928 vs 1932); Similar lot size (6,500 vs 6,500 sqft)
    $980,000
  • 204 17th St, Wilmette, IL 60091
    2,034 sqft | $449/sqft | built 1926 | Similar size (2,034 vs 2,023 sqft); Similar lot size (6,400 vs 6,500 sqft); Same quality (Average)
    $913,590
  • 1617 Lake Ave, Wilmette, IL 60091
    1,920 sqft | $406/sqft | built 1933 | 5% smaller (1,920 vs 2,023 sqft); Similar age (1933 vs 1932); Similar lot size (6,600 vs 6,500 sqft)
    $780,000

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 12.1% in 2026 from 2025.

Assessor market value by tax year, with the change from the previous year listed
Tax yearAssessor market valueChangeChange %
2026$787,810−$108,460−12.1%
2025$896,270+$309,670+52.8%
2024$586,600$00.0%
2023$586,600−$80,100−12.0%
2022$666,700+$251,250+60.5%
2021$415,450−$21,850−5.0%
2020$437,300——
6-year total+$350,510+80.2%