Cook County Value

17220 Olcott Ave, Tinley Park, IL 60477

4 bed / 1 bath, 1,408 sqft, built 1961, in Orland. Assessor market value for 2025: $228,330.

Cook County account 27254040210000

Assessor market value
$228,330
Tax year 2025 · before exemptions; the assessed value on your notice is 10% of it
Living area
1,408 sqft
$162 per sqft
Year built
1961
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 60477 and Orland assessment pages.

Appeal deadlines

For Orland, appeals to the Assessor are open through (17 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 $228,330 in 2024 to $228,330 in 2025.
  • Assessor market value per square footThe current public record shows about $162 per square foot before any comparable-property adjustments.
  • Nearby comparison areaThis page starts the equity review with public records for the Orland neighborhood and ZIP 60477.
  • Neighborhood value signalAmong 941 residential records in the same neighborhood, the average assessor market value is about $198 per square foot.
  • Area year-over-year signalNearby residential records with prior-year values stayed about flat on average.

Comparable assessments

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

  • 16121 88th Ave, Orland Park, IL 60462
    1,400 sqft | $157/sqft | built 1960 | Similar size (1,400 vs 1,408 sqft); Similar age (1960 vs 1961); Similar lot size (20,000 vs 20,350 sqft)
    $220,000
  • 8620 170th Pl, Orland Park, IL 60462
    1,407 sqft | $163/sqft | built 1960 | Similar size (1,407 vs 1,408 sqft); Similar age (1960 vs 1961); Similar lot size (20,200 vs 20,350 sqft)
    $230,000
  • 8721 163rd St, Orland Park, IL 60462
    1,412 sqft | $170/sqft | built 1960 | Similar size (1,412 vs 1,408 sqft); Similar age (1960 vs 1961); Similar lot size (20,200 vs 20,350 sqft)
    $240,000
  • 17219 Oconto Ave, Tinley Park, IL 60477
    1,403 sqft | $164/sqft | built 1960 | Similar size (1,403 vs 1,408 sqft); Similar age (1960 vs 1961); Similar lot size (20,497 vs 20,350 sqft)
    $230,010
  • 16411 90th Ave, Orland Park, IL 60462
    1,398 sqft | $179/sqft | built 1960 | Similar size (1,398 vs 1,408 sqft); Similar age (1960 vs 1961); Similar lot size (20,185 vs 20,350 sqft)
    $250,010

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: . 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

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$228,330$00.0%
2024$228,330−$11,670−4.9%
2023$240,000+$74,800+45.3%
2022$165,200−$8,540−4.9%
2021$173,740+$100.0%
2020$173,730——
5-year total+$54,600+31.4%