Cook County Value

2129 Mallard Dr, Northbrook, IL 60062

5 bed / 3 bath, 3,926 sqft, built 1981, in Northfield. Assessor market value for 2026: $982,870.

Cook County account 04164000320000

Assessor market value
$982,870
Tax year 2026 · before exemptions; the assessed value on your notice is 10% of it
Living area
3,926 sqft
$250 per sqft
Year built
1981
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 2.2% from $1,005,000 in 2025 to $982,870 in 2026.
  • Assessor market value per square footThe current public record shows about $250 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 2,922 residential records in the same neighborhood, the average assessor market value is about $298 per square foot.
  • Area year-over-year signalNearby residential records with prior-year values moved about -2.8% on average.

Comparable assessments

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

  • 1825 Ivy Ln, Northbrook, IL 60062
    3,923 sqft | $247/sqft | built 1974 | Similar size (3,923 vs 3,926 sqft); Similar lot size (12,040 vs 12,000 sqft); Same quality (Average)
    $967,550
  • 2020 Mallard Dr, Northbrook, IL 60062
    4,028 sqft | $248/sqft | built 1983 | Similar size (4,028 vs 3,926 sqft); Similar age (1983 vs 1981); Similar lot size (12,026 vs 12,000 sqft)
    $1,000,000
  • 3133 Doriann Dr, Northbrook, IL 60062
    3,961 sqft | $251/sqft | built 1976 | Similar size (3,961 vs 3,926 sqft); Similar age (1976 vs 1981); Similar lot size (12,000 vs 12,000 sqft)
    $995,000
  • 2030 Mallard Dr, Northbrook, IL 60062
    4,010 sqft | $251/sqft | built 1981 | Similar size (4,010 vs 3,926 sqft); Built same year (1981); Similar lot size (12,027 vs 12,000 sqft)
    $1,006,540
  • 3110 Kayjay Dr, Northbrook, IL 60062
    3,753 sqft | $264/sqft | built 1980 | Similar size (3,753 vs 3,926 sqft); Similar age (1980 vs 1981); Similar lot size (12,000 vs 12,000 sqft)
    $989,150

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 2.2% in 2026 from 2025.

Assessor market value by tax year, with the change from the previous year listed
Tax yearAssessor market valueChangeChange %
2026$982,870−$22,130−2.2%
2025$1,005,000+$294,990+41.5%
2024$710,010$00.0%
2023$710,010$00.0%
2022$710,010+$102,510+16.9%
2021$607,500−$40,340−6.2%
2020$647,840——
6-year total+$335,030+51.7%