Cook County Value

18104 Jason Ln, Lansing, IL 60438

3 bed / 3 bath, 1,954 sqft, built 1987, in Thornton. Assessor market value for 2025: $261,540.

Cook County account 29361160040000

Assessor market value
$261,540
Tax year 2025 · before exemptions; the assessed value on your notice is 10% of it
Living area
1,954 sqft
$134 per sqft
Year built
1987
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 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 $261,540 in 2024 to $261,540 in 2025.
  • Assessor market value per square footThe current public record shows about $134 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 199 residential records in the same neighborhood, the average assessor market value is about $133 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.

  • 1960 185th St, Lansing, IL 60438
    1,985 sqft | $136/sqft | built 1987 | Similar size (1,985 vs 1,954 sqft); Built same year (1987); Similar lot size (9,528 vs 10,000 sqft)
    $270,000
  • 18460 Creiger Ave, Lansing, IL 60438
    2,017 sqft | $128/sqft | built 1989 | Similar size (2,017 vs 1,954 sqft); Similar age (1989 vs 1987); Similar lot size (10,000 vs 10,000 sqft)
    $257,910
  • 18073 Jason Ln, Lansing, IL 60438
    1,925 sqft | $145/sqft | built 1987 | Similar size (1,925 vs 1,954 sqft); Built same year (1987); Similar lot size (10,512 vs 10,000 sqft)
    $280,000
  • 18539 Country Ln, Lansing, IL 60438
    2,002 sqft | $140/sqft | built 1988 | Similar size (2,002 vs 1,954 sqft); Similar age (1988 vs 1987); Similar lot size (9,625 vs 10,000 sqft)
    $280,000
  • 18506 Country Ln, Lansing, IL 60438
    1,990 sqft | $141/sqft | built 1989 | Similar size (1,990 vs 1,954 sqft); Similar age (1989 vs 1987); Similar lot size (10,567 vs 10,000 sqft)
    $280,000

Recent comparable sales

No usable comparable sales are available in this data snapshot.

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

Down 3.1% in 2025 from 2024.

Assessor market value by tax year, with the change from the previous year listed
Tax yearAssessor market valueChangeChange %
2025$261,540−$8,460−3.1%
2024$270,000$00.0%
2023$270,000+$100,410+59.2%
2022$169,590$00.0%
2021$169,590$00.0%
2020$169,590——
5-year total+$91,950+54.2%