Cook County Value

820 Chilton Ln, Wilmette, IL 60091

5 bed / 3 bath, 2,269 sqft, built 1942, in New Trier. Assessor market value for 2026: $839,850.

Cook County account 05321000110000

Assessor market value
$839,850
Tax year 2026 · before exemptions; the assessed value on your notice is 10% of it
Living area
2,269 sqft
$370 per sqft
Year built
1942
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 $839,850 in 2025 to $839,850 in 2026.
  • Assessor market value per square footThe current public record shows about $370 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 1,944 residential records in the same neighborhood, the average assessor market value is about $372 per square foot.
  • Area year-over-year signalNearby residential records with prior-year values moved about -2.2% on average.

Comparable assessments

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

  • 2307 Schiller Ave, Wilmette, IL 60091
    2,268 sqft | $367/sqft | built 1943 | Similar size (2,268 vs 2,269 sqft); Similar age (1943 vs 1942); Similar lot size (8,965 vs 8,905 sqft)
    $832,380
  • 2611 Lake Ave, Wilmette, IL 60091
    2,335 sqft | $313/sqft | built 1950 | Similar size (2,335 vs 2,269 sqft); Similar lot size (8,880 vs 8,905 sqft); Same quality (Average)
    $730,000
  • 1733 Central Ave, Wilmette, IL 60091
    2,218 sqft | $487/sqft | built 1943 | Similar size (2,218 vs 2,269 sqft); Similar age (1943 vs 1942); Similar lot size (8,707 vs 8,905 sqft)
    $1,080,000
  • 119 Sterling Ln, Wilmette, IL 60091
    2,358 sqft | $445/sqft | built 1942 | Similar size (2,358 vs 2,269 sqft); Built same year (1942); Similar lot size (9,144 vs 8,905 sqft)
    $1,050,000
  • 815 Chilton Ln, Wilmette, IL 60091
    2,248 sqft | $369/sqft | built 1946 | Similar size (2,248 vs 2,269 sqft); Similar age (1946 vs 1942); Similar lot size (8,453 vs 8,905 sqft)
    $830,000

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: . 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$839,850$00.0%
2025$839,850+$126,430+17.7%
2024$713,420$00.0%
2023$713,420$00.0%
2022$713,420+$85,690+13.7%
2021$627,730−$42,390−6.3%
2020$670,120——
6-year total+$169,730+25.3%