Cook County Value

1511 W Cortez St, Chicago, IL 60642

8 bed / 3 bath, 3,520 sqft, built 1915, in Jefferson Assessor market value for 2026: $854,090.

Cook County account 17053090270000

Assessor market value
$854,090
Tax year 2026 · before exemptions; the assessed value on your notice is 10% of it
Living area
3,520 sqft
$243 per sqft
Year built
1915
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 60642 and Jefferson assessment pages.

Local guide: West Chicago Township 2026 Property Tax Appeal Guide.

Appeal deadlines

For West Chicago, appeals to the Assessor closed . Board of Review dates for West Chicago 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 decreased 2.2% from $873,000 in 2025 to $854,090 in 2026.
  • Assessor market value per square footThe current public record shows about $243 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 60642.
  • Neighborhood value signalAmong 3,753 residential records in the same neighborhood, the average assessor market value is about $356 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.

  • 1233 W Erie St, Chicago, IL 60642
    3,528 sqft | $215/sqft | built 1906 | Similar size (3,528 vs 3,520 sqft); Similar lot size (3,072 vs 3,125 sqft); Same quality (Average)
    $759,820
  • 1953 W Chicago Ave, Chicago, IL 60622
    3,405 sqft | $220/sqft | built 1915 | Similar size (3,405 vs 3,520 sqft); Built same year (1915); Similar lot size (2,952 vs 3,125 sqft)
    $750,000
  • 1439 W Thomas St, Chicago, IL 60642
    3,528 sqft | $235/sqft | built 1905 | Similar size (3,528 vs 3,520 sqft); Similar lot size (2,976 vs 3,125 sqft); Same quality (Average)
    $830,000
  • 2329 W Huron St, Chicago, IL 60612
    3,444 sqft | $217/sqft | built 1916 | Similar size (3,444 vs 3,520 sqft); Similar age (1916 vs 1915); Lot 10% smaller (2,803 vs 3,125 sqft)
    $747,460
  • 2108 W Superior St, Chicago, IL 60612
    3,404 sqft | $364/sqft | built 1918 | Similar size (3,404 vs 3,520 sqft); Similar age (1918 vs 1915); Similar lot size (3,114 vs 3,125 sqft)
    $1,240,000

Recent comparable sales

No usable comparable sales are available in this data snapshot.

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

Down 2.2% in 2026 from 2025.

Assessor market value by tax year, with the change from the previous year listed
Tax yearAssessor market valueChangeChange %
2026$854,090−$18,910−2.2%
2025$873,000−$97,000−10.0%
2024$970,000+$30,000+3.2%
2023$940,000$00.0%
2022$940,000$00.0%
2021$940,000+$313,370+50.0%
2020$626,630——
6-year total+$227,460+36.3%