Cook County Value

1800 Thornwood Ln, Northbrook, IL 60062

3 bed / 1 bath, 1,372 sqft, built 1954, in Northfield. Assessor market value for 2026: $330,000.

Cook County account 04101120160000

Assessor market value
$330,000
Tax year 2026 · before exemptions; the assessed value on your notice is 10% of it
Living area
1,372 sqft
$241 per sqft
Year built
1954
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 stayed about the same, from $330,000 in 2025 to $330,000 in 2026.
  • Assessor market value per square footThe current public record shows about $241 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 1,572 residential records in the same neighborhood, the average assessor market value is about $309 per square foot.
  • Area year-over-year signalNearby residential records with prior-year values moved about -0.3% on average.

Comparable assessments

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

  • 421 Marshall Rd, Northbrook, IL 60062
    1,376 sqft | $276/sqft | built 1956 | Similar size (1,376 vs 1,372 sqft); Similar age (1956 vs 1954); Similar lot size (9,913 vs 9,840 sqft)
    $380,000
  • 2152 Scott Rd, Northbrook, IL 60062
    1,360 sqft | $310/sqft | built 1951 | Similar size (1,360 vs 1,372 sqft); Similar age (1951 vs 1954); Similar lot size (10,140 vs 9,840 sqft)
    $421,330
  • 2220 Techny Rd, Northbrook, IL 60062
    1,385 sqft | $299/sqft | built 1950 | Similar size (1,385 vs 1,372 sqft); Similar age (1950 vs 1954); Similar lot size (10,075 vs 9,840 sqft)
    $414,020
  • 1720 Ferndale Ave, Northbrook, IL 60062
    1,347 sqft | $304/sqft | built 1951 | Similar size (1,347 vs 1,372 sqft); Similar age (1951 vs 1954); Similar lot size (9,600 vs 9,840 sqft)
    $410,000
  • 1047 Meadow Rd, Northbrook, IL 60062
    1,395 sqft | $323/sqft | built 1955 | Similar size (1,395 vs 1,372 sqft); Similar age (1955 vs 1954); Similar lot size (9,385 vs 9,840 sqft)
    $450,000

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$330,000$00.0%
2025$330,000−$20,000−5.7%
2024$350,000$00.0%
2023$350,000$00.0%
2022$350,000+$22,840+7.0%
2021$327,160$00.0%
2020$327,160——
6-year total+$2,840+0.9%