Cook County Value

1431 Sycamore Ln, Northbrook, IL 60062

4 bed / 2 bath, 1,439 sqft, built 1951, in Northfield. Assessor market value for 2026: $438,800.

Cook County account 04103190500000

Assessor market value
$438,800
Tax year 2026 · before exemptions; the assessed value on your notice is 10% of it
Living area
1,439 sqft
$305 per sqft
Year built
1951
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 60062 and Northfield assessment pages.

Local guide: Northfield Township 2026 Property Tax Appeal Guide.

Appeal deadlines

For Northfield, appeals to the Assessor closed . Board of Review dates for Northfield have not been published yet.

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 8.6% from $480,000 in 2025 to $438,800 in 2026.
  • Assessor market value per square footThe current public record shows about $305 per square foot before any comparable-property adjustments.
  • Nearby comparison areaThis page starts the equity review with public records for the Northfield neighborhood and ZIP 60062.
  • Neighborhood value signalAmong 2,200 residential records in the same neighborhood, the average assessor market value is about $346 per square foot.
  • Area year-over-year signalNearby residential records with prior-year values moved about -2.0% on average.

Comparable assessments

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

  • 2141 Henley St, Glenview, IL 60025
    1,445 sqft | $360/sqft | built 1950 | Similar size (1,445 vs 1,439 sqft); Similar age (1950 vs 1951); Similar lot size (8,750 vs 8,220 sqft)
    $519,990
  • 2525 Glenview Rd, Glenview, IL 60025
    1,430 sqft | $322/sqft | built 1951 | Similar size (1,430 vs 1,439 sqft); Built same year (1951); Similar lot size (8,000 vs 8,220 sqft)
    $460,000
  • 1718 Illinois Rd, Northbrook, IL 60062
    1,415 sqft | $346/sqft | built 1951 | Similar size (1,415 vs 1,439 sqft); Built same year (1951); Similar lot size (7,425 vs 8,220 sqft)
    $490,010
  • 823 Rolling Pass, Glenview, IL 60025
    1,420 sqft | $373/sqft | built 1954 | Similar size (1,420 vs 1,439 sqft); Similar age (1954 vs 1951); Similar lot size (8,573 vs 8,220 sqft)
    $530,000
  • 2206 Oak Ave, Northbrook, IL 60062
    1,484 sqft | $319/sqft | built 1950 | Similar size (1,484 vs 1,439 sqft); Similar age (1950 vs 1951); Similar lot size (8,505 vs 8,220 sqft)
    $472,940

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 8.6% in 2026 from 2025.

Assessor market value by tax year, with the change from the previous year listed
Tax yearAssessor market valueChangeChange %
2026$438,800−$41,200−8.6%
2025$480,000+$64,130+15.4%
2024$415,870$00.0%
2023$415,870−$24,130−5.5%
2022$440,000+$165,160+60.1%
2021$274,840+$200.0%
2020$274,820——
6-year total+$163,980+59.7%