Cook County Value

17514 Greenbay Ave, Lansing, IL 60438

3 bed / 1 bath, 1,334 sqft, built 1951, in Thornton. Assessor market value for 2025: $137,010.

Cook County account 30304100540000

In line with similar homes

8 similar homes nearby support a value at or above your county value.

Assessor market value$137,010
Similar homes$143,951
No gap: similar homes are at or above the county value · bars start at $0

How sure: High · 8 similar homes (5 shown below) · public records only

Assessor market value
$137,010
Tax year 2025 · before exemptions; the assessed value on your notice is 10% of it
Living area
1,334 sqft
$103 per sqft
Year built
1951
Average quality

What we found

Similar homes' assessments

Weak

4 of 8 similar homes are assessed lower per square foot. Their similarity-weighted median is $107.91/sqft, which supports a value of $143,951.

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 60438 and Thornton assessment pages.

Appeal deadlines

Thornton 2026 appeal dates 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 stayed about the same, from $137,010 in 2024 to $137,010 in 2025.
  • Assessor market value per square footThe current public record shows about $103 per square foot before any comparable-property adjustments.
  • Nearby comparison areaThis page starts the equity review with public records for the Thornton neighborhood and ZIP 60438.
  • Neighborhood value signalAmong 2,724 residential records in the same neighborhood, the average assessor market value is about $102 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.

  • 17540 Greenbay Ave, Lansing, IL 60438
    1,334 sqft | $116/sqft | built 1949 | Similar size (1,334 vs 1,334 sqft); Similar age (1949 vs 1951); Similar lot size (6,900 vs 6,900 sqft)
    $155,010
  • 17812 Escanaba Ave, Lansing, IL 60438
    1,340 sqft | $108/sqft | built 1954 | Similar size (1,340 vs 1,334 sqft); Similar age (1954 vs 1951); Similar lot size (7,000 vs 6,900 sqft)
    $144,880
  • 2010 Indiana Ave, Lansing, IL 60438
    1,314 sqft | $89/sqft | built 1954 | Similar size (1,314 vs 1,334 sqft); Similar age (1954 vs 1951); Similar lot size (6,710 vs 6,900 sqft)
    $117,000
  • 17730 Burnham Ave, Lansing, IL 60438
    1,317 sqft | $111/sqft | built 1952 | Similar size (1,317 vs 1,334 sqft); Similar age (1952 vs 1951); Similar lot size (6,525 vs 6,900 sqft)
    $146,000
  • 17740 Burnham Ave, Lansing, IL 60438
    1,352 sqft | $101/sqft | built 1952 | Similar size (1,352 vs 1,334 sqft); Similar age (1952 vs 1951); Similar lot size (6,525 vs 6,900 sqft)
    $137,000

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

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$137,010$00.0%
2024$137,010$00.0%
2023$137,010+$39,010+39.8%
2022$98,000$00.0%
2021$98,000+$100.0%
2020$97,990——
5-year total+$39,020+39.8%