Cook County Value

810 Park Ave, Wilmette, IL 60091

4 bed / 3 bath, 2,880 sqft, built 1988, in New Trier. Assessor market value for 2026: $1,540,000.

Cook County account 05341000450000

Assessor market value
$1,540,000
Tax year 2026 · before exemptions; the assessed value on your notice is 10% of it
Living area
2,880 sqft
$535 per sqft
Year built
1988
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 $1,540,000 in 2025 to $1,540,000 in 2026.
  • Assessor market value per square footThe current public record shows about $535 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.

  • 147 Prairie Ave, Wilmette, IL 60091
    2,696 sqft | $542/sqft | built 1990 | 6% smaller (2,696 vs 2,880 sqft); Similar age (1990 vs 1988); Similar lot size (12,480 vs 12,024 sqft)
    $1,460,000
  • 2219 Schiller Ave, Wilmette, IL 60091
    2,860 sqft | $413/sqft | built 1989 | Similar size (2,860 vs 2,880 sqft); Similar age (1989 vs 1988); Lot 18% smaller (9,894 vs 12,024 sqft)
    $1,180,010
  • 400 Prairie Ave, Wilmette, IL 60091
    2,975 sqft | $565/sqft | built 2000 | Similar size (2,975 vs 2,880 sqft); Lot 10% smaller (10,814 vs 12,024 sqft); Same quality (Average)
    $1,680,010
  • 826 17th St, Wilmette, IL 60091
    2,636 sqft | $512/sqft | built 1992 | 8% smaller (2,636 vs 2,880 sqft); Similar age (1992 vs 1988); Lot 14% smaller (10,340 vs 12,024 sqft)
    $1,350,000
  • 2019 Lake Ave, Wilmette, IL 60091
    2,774 sqft | $386/sqft | built 1988 | Similar size (2,774 vs 2,880 sqft); Built same year (1988); Same quality (Average)
    $1,070,010

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: . Showing the last prepared sales evidence while recent sales are refreshed. 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$1,540,000$00.0%
2025$1,540,000+$400,000+35.1%
2024$1,140,000——
2-year total+$400,000+35.1%