Cook County Value

11821 S Le Claire Ave, Alsip, IL 60803

3 bed / 1 bath, 1,117 sqft, built 1976, in Worth. Assessor market value for 2026: $240,000.

Cook County account 24214260100000

Assessor market value
$240,000
Tax year 2026 · before exemptions; the assessed value on your notice is 10% of it
Living area
1,117 sqft
$215 per sqft
Year built
1976
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 60803, Worth, and Oak Lawn assessment pages.

Local guide: Worth Township 2026 Property Tax Appeal Guide.

Appeal deadlines

For Worth, appeals to the Assessor closed . Board of Review dates for Worth 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 increased 27.8% from $187,750 in 2025 to $240,000 in 2026.
  • Assessor market value per square footThe current public record shows about $215 per square foot before any comparable-property adjustments.
  • Nearby comparison areaThis page starts the equity review with public records for the Worth neighborhood and ZIP 60803.
  • Neighborhood value signalAmong 698 residential records in the same neighborhood, the average assessor market value is about $218 per square foot.
  • Area year-over-year signalNearby residential records with prior-year values moved about +29.9% on average.

Comparable assessments

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

  • 11817 S Le Claire Ave, Alsip, IL 60803
    1,148 sqft | $253/sqft | built 1975 | Similar size (1,148 vs 1,117 sqft); Similar age (1975 vs 1976); Similar lot size (7,906 vs 7,906 sqft)
    $290,000
  • 5049 W 118th St, Alsip, IL 60803
    1,121 sqft | $214/sqft | built 1974 | Similar size (1,121 vs 1,117 sqft); Similar age (1974 vs 1976); Similar lot size (8,175 vs 7,906 sqft)
    $240,010
  • 11833 S Laramie Ave, Alsip, IL 60803
    1,170 sqft | $205/sqft | built 1977 | Similar size (1,170 vs 1,117 sqft); Similar age (1977 vs 1976); Similar lot size (7,860 vs 7,906 sqft)
    $240,000
  • 11827 S Leamington Ave, Alsip, IL 60803
    1,167 sqft | $257/sqft | built 1977 | Similar size (1,167 vs 1,117 sqft); Similar age (1977 vs 1976); Similar lot size (8,040 vs 7,906 sqft)
    $300,000
  • 11744 S Leamington Ave, Alsip, IL 60803
    1,076 sqft | $288/sqft | built 1976 | Similar size (1,076 vs 1,117 sqft); Built same year (1976); Similar lot size (7,860 vs 7,906 sqft)
    $310,000

Recent comparable sales

Sales selected by similarity to the subject property.

  • 4529 W 129th St, Alsip, IL 60803
    996 sqft | $308/sqft | built 1981 | 11% size difference (996 sqft); Moderate age difference (5 years newer); Same beds (3)
    $307,000

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

Up 27.8% in 2026 from 2025.

Assessor market value by tax year, with the change from the previous year listed
Tax yearAssessor market valueChangeChange %
2026$240,000+$52,250+27.8%
2025$187,750$00.0%
2024$187,750−$22,250−10.6%
2023$210,000+$50,970+32.1%
2022$159,030$00.0%
2021$159,030+$100.0%
2020$159,020——
6-year total+$80,980+50.9%