Cook County Value

11230 S Avon Ave, Alsip, IL 60803

3 bed / 2 bath, 2,051 sqft, built 1975, in Worth. Assessor market value for 2026: $360,000.

Cook County account 24212060410000

Assessor market value
$360,000
Tax year 2026 · before exemptions; the assessed value on your notice is 10% of it
Living area
2,051 sqft
$176 per sqft
Year built
1975
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 27.4% from $282,560 in 2025 to $360,000 in 2026.
  • Assessor market value per square footThe current public record shows about $176 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.

  • 11341 Mather Ave, Alsip, IL 60803
    2,113 sqft | $166/sqft | built 1978 | Similar size (2,113 vs 2,051 sqft); Similar age (1978 vs 1975); Similar lot size (12,500 vs 12,500 sqft)
    $350,000
  • 11441 Mather Ave, Alsip, IL 60803
    1,926 sqft | $192/sqft | built 1980 | 6% smaller (1,926 vs 2,051 sqft); Similar age (1980 vs 1975); Similar lot size (12,550 vs 12,500 sqft)
    $370,000
  • 11326 S Lawler Ave, Alsip, IL 60803
    2,072 sqft | $169/sqft | built 1977 | Similar size (2,072 vs 2,051 sqft); Similar age (1977 vs 1975); Lot 19% smaller (10,150 vs 12,500 sqft)
    $350,000
  • 5157 W 118th St, Alsip, IL 60803
    2,156 sqft | $172/sqft | built 1973 | 5% larger (2,156 vs 2,051 sqft); Similar age (1973 vs 1975); Lot 15% larger (14,400 vs 12,500 sqft)
    $370,000
  • 5139 W 120th Pl, Alsip, IL 60803
    2,140 sqft | $168/sqft | built 1967 | Similar size (2,140 vs 2,051 sqft); Lot 10% larger (13,770 vs 12,500 sqft); Same quality (Average)
    $360,000

Recent comparable sales

Sales selected by similarity to the subject property.

Public appraisal comparison for 2026. Prepared . Appraisal source: Cook County Assessor's Office. Sales data checked in this snapshot: . Showing the last prepared sales evidence while recent sales are refreshed. Matches consider available size, age, location and property characteristics. How comparisons work.

Value history

Up 27.4% in 2026 from 2025.

Assessor market value by tax year, with the change from the previous year listed
Tax yearAssessor market valueChangeChange %
2026$360,000+$77,440+27.4%
2025$282,560$00.0%
2024$282,560−$7,440−2.6%
2023$290,000+$59,580+25.9%
2022$230,420$00.0%
2021$230,420+$200.0%
2020$230,400——
6-year total+$129,600+56.3%