Cook County Value

17802 Ridgewood Ave, Lansing, IL 60438

3 bed / 1 bath, 1,102 sqft, built 1971, in Thornton. Assessor market value for 2025: $60,110.

Cook County account 30312020230000

Possibly too high

about $5,000

8 similar homes nearby point to a value about $5,000 lower than yours.

Assessor market value$60,110
Similar homes$55,386
$4,724 gap · bars start at $0

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

Assessor market value
$60,110
Tax year 2025 · before exemptions; the assessed value on your notice is 10% of it
Living area
1,102 sqft
$55 per sqft
Year built
1971
Average quality

Why we think so

Similar homes' assessments

Moderate

6 of 8 similar homes are assessed lower per square foot. Their similarity-weighted median is $50.12/sqft, but land is valued apart from the home, and some of them have less land value per square foot of home than yours, which counts as $13,210. Counting your land in place of theirs where theirs is less, they support a value of $55,386.

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 $60,110 in 2024 to $60,110 in 2025.
  • Assessor market value per square footThe current public record shows about $55 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.

  • 17833 Oakwood Ave, Lansing, IL 60438
    1,120 sqft | $50/sqft | built 1970 | Similar size (1,120 vs 1,102 sqft); Similar age (1970 vs 1971); Similar lot size (3,125 vs 3,108 sqft)
    $56,140
  • 17815 Chicago Ave, Lansing, IL 60438
    1,107 sqft | $54/sqft | built 1972 | Similar size (1,107 vs 1,102 sqft); Similar age (1972 vs 1971); Similar lot size (3,275 vs 3,108 sqft)
    $59,960
  • 17845 Park Ave, Lansing, IL 60438
    1,080 sqft | $55/sqft | built 1961 | Similar size (1,080 vs 1,102 sqft); Similar lot size (3,125 vs 3,108 sqft); Same quality (Average)
    $59,640
  • 17828 Wildwood Ave, Lansing, IL 60438
    1,080 sqft | $49/sqft | built 1960 | Similar size (1,080 vs 1,102 sqft); Similar lot size (3,125 vs 3,108 sqft); Same quality (Average)
    $52,640
  • 17931 Park Ave, Lansing, IL 60438
    1,107 sqft | $54/sqft | built 1957 | Similar size (1,107 vs 1,102 sqft); Similar lot size (3,125 vs 3,108 sqft); Same quality (Average)
    $59,640

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$60,110$00.0%
2024$60,110$00.0%
2023$60,110+$9,170+18.0%
2022$50,940$00.0%
2021$50,940+$200.0%
2020$50,920——
5-year total+$9,190+18.0%