Cook County Value

1155 Ash St, Winnetka, IL 60093

5 bed / 4 bath, 3,896 sqft, built 2023, in New Trier Assessor market value for 2026: $2,350,000.

Cook County account 05201160200000

Assessor market value
$2,350,000
Tax year 2026 · before exemptions; the assessed value on your notice is 10% of it
Living area
3,896 sqft
$603 per sqft
Year built
2023
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 60093 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 1.3% from $2,380,000 in 2025 to $2,350,000 in 2026.
  • Assessor market value per square footThe current public record shows about $603 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 60093.
  • Neighborhood value signalAmong 229 residential records in the same neighborhood, the average assessor market value is about $422 per square foot.
  • Area year-over-year signalNearby residential records with prior-year values moved about -3.2% on average.

Comparable assessments

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

  • 918 Linden Ave, Wilmette, IL 60091
    3,904 sqft | $602/sqft | built 2021 | Similar size (3,904 vs 3,896 sqft); Similar age (2021 vs 2023); Similar lot size (10,000 vs 10,800 sqft)
    $2,350,000
  • 1518 Edgewood Ln, Winnetka, IL 60093
    3,935 sqft | $543/sqft | built 2021 | Similar size (3,935 vs 3,896 sqft); Similar age (2021 vs 2023); Similar lot size (10,000 vs 10,800 sqft)
    $2,137,320
  • 238 Hollywood Ct, Wilmette, IL 60091
    3,908 sqft | $407/sqft | built 2005 | Similar size (3,908 vs 3,896 sqft); Similar lot size (10,836 vs 10,800 sqft); Same quality (Average)
    $1,590,000
  • 818 Ashland Ave, Wilmette, IL 60091
    3,941 sqft | $952/sqft | built 2025 | Similar size (3,941 vs 3,896 sqft); Similar age (2025 vs 2023); Similar lot size (11,160 vs 10,800 sqft)
    $3,750,000
  • 829 Linden Ave, Wilmette, IL 60091
    3,916 sqft | $639/sqft | built 2021 | Similar size (3,916 vs 3,896 sqft); Similar age (2021 vs 2023); Lot 12% smaller (9,500 vs 10,800 sqft)
    $2,501,710

Recent comparable sales

Sales selected by similarity to the subject property.

  • 358 Winnetka Ave, IL 60093
    3,631 sqft | $826/sqft | built 2004 | 7% size difference (3,631 sqft); Within 1 bedroom (4 vs 5)
    $3,000,000

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 1.3% in 2026 from 2025.

Assessor market value by tax year, with the change from the previous year listed
Tax yearAssessor market valueChangeChange %
2026$2,350,000−$30,000−1.3%
2025$2,380,000+$956,140+67.2%
2024$1,423,860+$793,860+126.0%
2023$630,000$00.0%
2022$630,000−$101,720−13.9%
2021$731,720+$512,750+234.2%
2020$218,970——
6-year total+$2,131,030+973.2%