Cook County Value

124 S Harold Ave Northlake, IL 60164

3 bed / 1 bath, 1,176 sqft, built 1955, in Proviso Assessor market value for 2026: $220,000.

Cook County account 15051140170000

Assessor market value
$220,000
Tax year 2026 · before exemptions; the assessed value on your notice is 10% of it
Living area
1,176 sqft
$187 per sqft
Year built
1955
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 Proviso assessment pages.

Local guide: Proviso Township 2026 Property Tax Appeal Guide.

Appeal deadlines

For Proviso, appeals to the Assessor are open through (8 days left).

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 increased 10.0% from $200,000 in 2025 to $220,000 in 2026.
  • Assessor market value per square footThe current public record shows about $187 per square foot before any comparable-property adjustments.
  • Nearby comparison areaThis page starts the equity review with public records for the Proviso neighborhood and ZIP 60164.
  • Neighborhood value signalAmong 630 residential records in the same neighborhood, the average assessor market value is about $204 per square foot.
  • Area year-over-year signalNearby residential records with prior-year values moved about +15.7% on average.

Comparable assessments

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

  • 124 S Caryl Ave Northlake, IL 60164
    1,156 sqft | $285/sqft | built 1955 | Similar size (1,156 vs 1,176 sqft); Built same year (1955); Similar lot size (7,500 vs 7,500 sqft)
    $330,000
  • 203 45th Ave Northlake, IL 60164
    1,170 sqft | $205/sqft | built 1959 | Similar size (1,170 vs 1,176 sqft); Similar age (1959 vs 1955); Similar lot size (7,920 vs 7,500 sqft)
    $240,000
  • 118 S Roberta Ave Northlake, IL 60164
    1,200 sqft | $233/sqft | built 1960 | Similar size (1,200 vs 1,176 sqft); Similar age (1960 vs 1955); Similar lot size (7,735 vs 7,500 sqft)
    $280,010
  • 111 S Roy Ave Northlake, IL 60164
    1,162 sqft | $215/sqft | built 1940 | Similar size (1,162 vs 1,176 sqft); Similar lot size (7,500 vs 7,500 sqft); Same quality (Average)
    $250,000
  • 140 S Roy Ave Northlake, IL 60164
    1,145 sqft | $236/sqft | built 1956 | Similar size (1,145 vs 1,176 sqft); Similar age (1956 vs 1955); Lot 11% larger (8,312 vs 7,500 sqft)
    $270,000

Recent comparable sales

Sales selected by similarity to the subject property.

  • 111 S Roy Ave Northlake, IL 60164
    June-29-2026 | 1,162 sqft | $275/sqft | built 1940 | Similar size (1,162 sqft); Sold after the valuation date; Same beds (3)
    $320,000
  • 120 S Harold Ave Northlake, IL 60164
    1,028 sqft | $195/sqft | built 1940 | 13% size difference (1,028 sqft); Same beds (3)
    $200,000
  • 269 Hayes Dr Northlake, IL 60164
    1,242 sqft | $314/sqft | built 1952 | 6% size difference (1,242 sqft); Similar age (1952); Same beds (3)
    $390,000
  • 133 S Lavergne Ave Northlake, IL 60164
    1,056 sqft | $227/sqft | built 1962 | 10% size difference (1,056 sqft); Moderate age difference (7 years newer); Same beds (3)
    $240,000

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

Up 10.0% in 2026 from 2025.

Assessor market value by tax year, with the change from the previous year listed
Tax yearAssessor market valueChangeChange %
2026$220,000+$20,000+10.0%
2025$200,000$00.0%
2024$200,000$00.0%
2023$200,000+$24,110+13.7%
2022$175,890$00.0%
2021$175,890+$200.0%
2020$175,870——
6-year total+$44,130+25.1%