Cook County Value

6200 S Mason Ave, Chicago, IL 60638

3 bed / 1 bath, 1,376 sqft, built 1947, in Lake. Assessor market value for 2025: $276,810.

Cook County account 19174240160000

Assessor market value
$276,810
Tax year 2025 · before exemptions; the assessed value on your notice is 10% of it
Living area
1,376 sqft
$201 per sqft
Year built
1947
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 60638 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 $276,810 in 2024 to $276,810 in 2025.
  • Assessor market value per square footThe current public record shows about $201 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 60638.
  • Neighborhood value signalAmong 12,232 residential records in the same neighborhood, the average assessor market value is about $245 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.

  • 5200 S Moody Ave, Chicago, IL 60638
    1,388 sqft | $200/sqft | built 1950 | Similar size (1,388 vs 1,376 sqft); Similar age (1950 vs 1947); Similar lot size (4,437 vs 4,410 sqft)
    $277,410
  • 5219 S Menard Ave, Chicago, IL 60638
    1,377 sqft | $203/sqft | built 1941 | Similar size (1,377 vs 1,376 sqft); Similar lot size (4,562 vs 4,410 sqft); Same quality (Average)
    $279,110
  • 6035 S Merrimac Ave, Chicago, IL 60638
    1,374 sqft | $182/sqft | built 1951 | Similar size (1,374 vs 1,376 sqft); Similar age (1951 vs 1947); Similar lot size (4,500 vs 4,410 sqft)
    $250,000
  • 6524 W 61st St, Chicago, IL 60638
    1,370 sqft | $204/sqft | built 1950 | Similar size (1,370 vs 1,376 sqft); Similar age (1950 vs 1947); Similar lot size (4,687 vs 4,410 sqft)
    $280,000
  • 6040 S Merrimac Ave, Chicago, IL 60638
    1,371 sqft | $190/sqft | built 1955 | Similar size (1,371 vs 1,376 sqft); Similar lot size (4,500 vs 4,410 sqft); Same quality (Average)
    $260,000

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

Down 4.5% in 2025 from 2024.

Assessor market value by tax year, with the change from the previous year listed
Tax yearAssessor market valueChangeChange %
2025$276,810−$13,190−4.5%
2024$290,000+$59,990+26.1%
2023$230,010$00.0%
2022$230,010$00.0%
2021$230,010+$28,960+14.4%
2020$201,050——
5-year total+$75,760+37.7%