Cook County Value

2020 Mallard Dr, Northbrook, IL 60062

5 bed / 2 bath, 4,028 sqft, built 1983, in Northfield. Assessor market value for 2026: $1,000,000.

Cook County account 04164000510000

Assessor market value
$1,000,000
Tax year 2026 · before exemptions; the assessed value on your notice is 10% of it
Living area
4,028 sqft
$248 per sqft
Year built
1983
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 $1,000,000 in 2025 to $1,000,000 in 2026.
  • Assessor market value per square footThe current public record shows about $248 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

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

  • 2030 Mallard Dr, Northbrook, IL 60062
    4,010 sqft | $251/sqft | built 1981 | Similar size (4,010 vs 4,028 sqft); Similar age (1981 vs 1983); Similar lot size (12,027 vs 12,026 sqft)
    $1,006,540
  • 2129 Mallard Dr, Northbrook, IL 60062
    3,926 sqft | $250/sqft | built 1981 | Similar size (3,926 vs 4,028 sqft); Similar age (1981 vs 1983); Similar lot size (12,000 vs 12,026 sqft)
    $982,870
  • 2455 Vicki Ln, Northbrook, IL 60062
    4,114 sqft | $248/sqft | built 1987 | Similar size (4,114 vs 4,028 sqft); Similar age (1987 vs 1983); Similar lot size (11,995 vs 12,026 sqft)
    $1,020,010
  • 1417 Kingsport Ct, Northbrook, IL 60062
    4,087 sqft | $244/sqft | built 1989 | Similar size (4,087 vs 4,028 sqft); Similar lot size (12,104 vs 12,026 sqft); Same quality (Average)
    $998,960
  • 2111 Mallard Dr, Northbrook, IL 60062
    4,217 sqft | $277/sqft | built 1980 | Similar size (4,217 vs 4,028 sqft); Similar age (1980 vs 1983); Similar lot size (12,000 vs 12,026 sqft)
    $1,170,000

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: . Showing the last prepared sales evidence while recent sales are refreshed. 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$1,000,000$00.0%
2025$1,000,000+$244,640+32.4%
2024$755,360——
2-year total+$244,640+32.4%