Cook County Value

575 Thornwood Ln Northfield, IL 60093

6 bed / 3 bath, 3,479 sqft, built 1936, in Northfield. Assessor market value for 2026: $1,390,000.

Cook County account 04241010730000

Assessor market value
$1,390,000
Tax year 2026 · before exemptions; the assessed value on your notice is 10% of it
Living area
3,479 sqft
$400 per sqft
Year built
1936
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 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 stayed about the same, from $1,390,000 in 2025 to $1,390,000 in 2026.
  • Assessor market value per square footThe current public record shows about $400 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 60093.
  • Neighborhood value signalAmong 1,262 residential records in the same neighborhood, the average assessor market value is about $367 per square foot.
  • Area year-over-year signalNearby residential records with prior-year values moved about -0.1% on average.

Comparable assessments

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

  • 2356 Hedge Row Northfield, IL 60093
    3,374 sqft | $379/sqft | built 1941 | Similar size (3,374 vs 3,479 sqft); Similar age (1941 vs 1936); Similar lot size (43,560 vs 43,604 sqft)
    $1,280,000
  • 631 Briar Ln Northfield, IL 60093
    3,309 sqft | $357/sqft | built 1938 | Similar size (3,309 vs 3,479 sqft); Similar age (1938 vs 1936); Similar lot size (43,560 vs 43,604 sqft)
    $1,180,000
  • 2324 Clover Ln Northfield, IL 60093
    3,412 sqft | $380/sqft | built 1944 | Similar size (3,412 vs 3,479 sqft); Similar lot size (44,126 vs 43,604 sqft); Same quality (Average)
    $1,295,330
  • 195 Old Farm Rd Northfield, IL 60093
    3,457 sqft | $385/sqft | built 1942 | Similar size (3,457 vs 3,479 sqft); Similar lot size (43,473 vs 43,604 sqft); Same quality (Average)
    $1,330,000
  • 611 Briar Ln Northfield, IL 60093
    3,570 sqft | $373/sqft | built 1939 | Similar size (3,570 vs 3,479 sqft); Similar age (1939 vs 1936); Similar lot size (45,215 vs 43,604 sqft)
    $1,330,000

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

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$1,390,000$00.0%
2025$1,390,000+$110,000+8.6%
2024$1,280,000$00.0%
2023$1,280,000$00.0%
2022$1,280,000+$210,650+19.7%
2021$1,069,350+$100.0%
2020$1,069,340——
6-year total+$320,660+30.0%