Cook County Value

21 Whitehall Dr Northlake, IL 60164

2 bed / 1 bath, 728 sqft, built 1950, in Leyden. Assessor market value for 2026: $210,000.

Cook County account 12323110160000

Assessor market value
$210,000
Tax year 2026 · before exemptions; the assessed value on your notice is 10% of it
Living area
728 sqft
$288 per sqft
Year built
1950
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 60164 and Leyden assessment pages.

Local guide: Leyden Township 2026 Property Tax Appeal Guide.

Appeal deadlines

For Leyden, appeals to the Assessor closed . Board of Review dates for Leyden 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 $210,000 in 2025 to $210,000 in 2026.
  • Assessor market value per square footThe current public record shows about $288 per square foot before any comparable-property adjustments.
  • Nearby comparison areaThis page starts the equity review with public records for the Leyden neighborhood and ZIP 60164.
  • Neighborhood value signalAmong 4,819 residential records in the same neighborhood, the average assessor market value is about $208 per square foot.
  • Area year-over-year signalNearby residential records with prior-year values moved about -0.9% on average.

Comparable assessments

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

  • 121 West Dr Northlake, IL 60164
    720 sqft | $278/sqft | built 1949 | Similar size (720 vs 728 sqft); Similar age (1949 vs 1950); Similar lot size (7,875 vs 7,875 sqft)
    $200,000
  • 10023 Lyndale St Melrose Park, IL 60164
    728 sqft | $302/sqft | built 1947 | Similar size (728 vs 728 sqft); Similar age (1947 vs 1950); Similar lot size (7,920 vs 7,875 sqft)
    $220,000
  • 109 N Lavergne Ave Northlake, IL 60164
    720 sqft | $278/sqft | built 1951 | Similar size (720 vs 728 sqft); Similar age (1951 vs 1950); Similar lot size (7,980 vs 7,875 sqft)
    $200,000
  • 116 N Harold Ave Northlake, IL 60164
    720 sqft | $306/sqft | built 1948 | Similar size (720 vs 728 sqft); Similar age (1948 vs 1950); Similar lot size (7,906 vs 7,875 sqft)
    $220,000
  • 40 East Dr Northlake, IL 60164
    768 sqft | $260/sqft | built 1950 | 6% larger (768 vs 728 sqft); Built same year (1950); Similar lot size (7,969 vs 7,875 sqft)
    $200,000

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$210,000$00.0%
2025$210,000+$25,610+13.9%
2024$184,390$00.0%
2023$184,390−$13,260−6.7%
2022$197,650+$72,930+58.5%
2021$124,720$00.0%
2020$124,720——
6-year total+$85,280+68.4%