Cook County Value

1417 Blackthorn Dr, Glenview, IL 60025

6 bed / 3 bath, 3,831 sqft, built 1966, in Northfield. Assessor market value for 2026: $1,096,570.

Cook County account 04263090080000

Assessor market value
$1,096,570
Tax year 2026 · before exemptions; the assessed value on your notice is 10% of it
Living area
3,831 sqft
$286 per sqft
Year built
1966
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 60025 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 5.5% from $1,160,000 in 2025 to $1,096,570 in 2026.
  • Assessor market value per square footThe current public record shows about $286 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 60025.
  • Neighborhood value signalAmong 679 residential records in the same neighborhood, the average assessor market value is about $343 per square foot.
  • Area year-over-year signalNearby residential records with prior-year values moved about -2.5% on average.

Comparable assessments

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

  • 1522 Basswood Cir, Glenview, IL 60025
    3,657 sqft | $287/sqft | built 1962 | Similar size (3,657 vs 3,831 sqft); Similar age (1962 vs 1966); Similar lot size (12,181 vs 12,498 sqft)
    $1,050,010
  • 1520 Sequoia Trl, Glenview, IL 60025
    3,729 sqft | $256/sqft | built 1963 | Similar size (3,729 vs 3,831 sqft); Similar age (1963 vs 1966); Similar lot size (11,480 vs 12,498 sqft)
    $955,000
  • 1739 Del Ogier Dr, Glenview, IL 60025
    3,540 sqft | $293/sqft | built 1962 | 8% smaller (3,540 vs 3,831 sqft); Similar age (1962 vs 1966); Similar lot size (12,466 vs 12,498 sqft)
    $1,038,010
  • 1332 Hollywood Ave, Glenview, IL 60025
    3,800 sqft | $295/sqft | built 1975 | Similar size (3,800 vs 3,831 sqft); Similar lot size (13,056 vs 12,498 sqft); Same quality (Average)
    $1,120,000
  • 1702 Del Ogier Dr, Glenview, IL 60025
    3,571 sqft | $304/sqft | built 1965 | 7% smaller (3,571 vs 3,831 sqft); Similar age (1965 vs 1966); Lot 12% larger (14,009 vs 12,498 sqft)
    $1,085,010

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: . Matches consider available size, age, location and property characteristics. How comparisons work.

Value history

Down 5.5% in 2026 from 2025.

Assessor market value by tax year, with the change from the previous year listed
Tax yearAssessor market valueChangeChange %
2026$1,096,570−$63,430−5.5%
2025$1,160,000+$334,130+40.5%
2024$825,870$00.0%
2023$825,870−$44,130−5.1%
2022$870,000+$114,470+15.2%
2021$755,530+$200.0%
2020$755,510——
6-year total+$341,060+45.1%