Cook County Value

4537 S Union Ave, Chicago, IL 60609

4 bed / 2 bath, 1,870 sqft, built 1881, in Lake. Assessor market value for 2025: $230,000.

Cook County account 20043200140000

Assessor market value
$230,000
Tax year 2025 · before exemptions; the assessed value on your notice is 10% of it
Living area
1,870 sqft
$123 per sqft
Year built
1881
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 60609 and Lake assessment pages.

Appeal deadlines

For Lake, appeals to the Assessor are open through (10 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 stayed about the same, from $230,000 in 2024 to $230,000 in 2025.
  • Assessor market value per square footThe current public record shows about $123 per square foot before any comparable-property adjustments.
  • Nearby comparison areaThis page starts the equity review with public records for the Lake neighborhood and ZIP 60609.
  • Neighborhood value signalAmong 1,065 residential records in the same neighborhood, the average assessor market value is about $173 per square foot.
  • Area year-over-year signalNearby residential records with prior-year values stayed about flat on average.

Comparable assessments

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

  • 625 W 46th St, Chicago, IL 60609
    1,892 sqft | $122/sqft | built 1882 | Similar size (1,892 vs 1,870 sqft); Similar age (1882 vs 1881); Similar lot size (3,175 vs 3,150 sqft)
    $230,000
  • 4530 S Lowe Ave, Chicago, IL 60609
    1,848 sqft | $130/sqft | built 1884 | Similar size (1,848 vs 1,870 sqft); Similar age (1884 vs 1881); Similar lot size (3,150 vs 3,150 sqft)
    $240,000
  • 549 W 43rd St, Chicago, IL 60609
    1,848 sqft | $135/sqft | built 1879 | Similar size (1,848 vs 1,870 sqft); Similar age (1879 vs 1881); Similar lot size (3,175 vs 3,150 sqft)
    $250,000
  • 4623 S Union Ave 1, Chicago, IL 60609
    1,860 sqft | $134/sqft | built 1883 | Similar size (1,860 vs 1,870 sqft); Similar age (1883 vs 1881); Similar lot size (3,224 vs 3,150 sqft)
    $250,000
  • 521 W 45th St, Chicago, IL 60609
    1,840 sqft | $152/sqft | built 1883 | Similar size (1,840 vs 1,870 sqft); Similar age (1883 vs 1881); Similar lot size (3,125 vs 3,150 sqft)
    $280,000

Recent comparable sales

Sales selected by similarity to the subject property.

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

No change in 2025 from 2024.

Assessor market value by tax year, with the change from the previous year listed
Tax yearAssessor market valueChangeChange %
2025$230,000$00.0%
2024$230,000+$50,000+27.8%
2023$180,000$00.0%
2022$180,000$00.0%
2021$180,000−$10,230−5.4%
2020$190,230——
5-year total+$39,770+20.9%