Cook County Value

3742 N Harlem Ave, Chicago, IL 60634

8 bed / 3 bath, 3,369 sqft, built 1991, in Jefferson. Assessor market value for 2025: $556,910.

Cook County account 12242240330000

Assessor market value
$556,910
Tax year 2025 · before exemptions; the assessed value on your notice is 10% of it
Living area
3,369 sqft
$165 per sqft
Year built
1991
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 60634 and Jefferson assessment pages.

Appeal deadlines

Jefferson 2026 appeal dates 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 $556,910 in 2024 to $556,910 in 2025.
  • Assessor market value per square footThe current public record shows about $165 per square foot before any comparable-property adjustments.
  • Nearby comparison areaThis page starts the equity review with public records for the Jefferson neighborhood and ZIP 60634.
  • Neighborhood value signalAmong 5,865 residential records in the same neighborhood, the average assessor market value is about $251 per square foot.
  • Area year-over-year signalNearby residential records with prior-year values stayed about flat on average.

Comparable assessments

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

  • 7411 W Addison St, Chicago, IL 60634
    3,192 sqft | $185/sqft | built 1994 | 5% smaller (3,192 vs 3,369 sqft); Similar age (1994 vs 1991); Similar lot size (3,750 vs 3,720 sqft)
    $590,000
  • 8010 W Addison St, Chicago, IL 60634
    3,278 sqft | $158/sqft | built 1992 | Similar size (3,278 vs 3,369 sqft); Similar age (1992 vs 1991); Lot 16% smaller (3,125 vs 3,720 sqft)
    $518,380
  • 7445 W Belmont Ave, Chicago, IL 60634
    3,253 sqft | $178/sqft | built 1993 | Similar size (3,253 vs 3,369 sqft); Similar age (1993 vs 1991); Lot 16% smaller (3,125 vs 3,720 sqft)
    $580,010
  • 7808 W Addison St, Chicago, IL 60634
    3,360 sqft | $167/sqft | built 1977 | Similar size (3,360 vs 3,369 sqft); Similar lot size (4,050 vs 3,720 sqft); Same quality (Average)
    $560,000
  • 7836 W Addison St, Chicago, IL 60634
    3,185 sqft | $166/sqft | built 1979 | 6% smaller (3,185 vs 3,369 sqft); Similar lot size (3,706 vs 3,720 sqft); Same quality (Average)
    $528,990

Recent comparable sales

No usable comparable sales are available in this data snapshot.

Public appraisal comparison for 2025. 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 5.6% in 2025 from 2024.

Assessor market value by tax year, with the change from the previous year listed
Tax yearAssessor market valueChangeChange %
2025$556,910−$33,090−5.6%
2024$590,000+$168,550+40.0%
2023$421,450$00.0%
2022$421,450−$38,550−8.4%
2021$460,000+$129,400+39.1%
2020$330,600——
5-year total+$226,310+68.5%