Cook County Value

18049 S Brittany Ln, Lansing, IL 60438

4 bed / 2 bath, 2,380 sqft, built 1993, in Thornton Assessor market value for 2025: $310,010.

Cook County account 29361170060000

Assessor market value
$310,010
Tax year 2025 · before exemptions; the assessed value on your notice is 10% of it
Living area
2,380 sqft
$130 per sqft
Year built
1993
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 $310,010 in 2024 to $310,010 in 2025.
  • Assessor market value per square footThe current public record shows about $130 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.

  • 18413 Clyde Ave, Lansing, IL 60438
    2,338 sqft | $128/sqft | built 1995 | Similar size (2,338 vs 2,380 sqft); Similar age (1995 vs 1993); Similar lot size (7,920 vs 8,470 sqft)
    $300,000
  • 1646 185th St, Lansing, IL 60438
    2,424 sqft | $115/sqft | built 1993 | Similar size (2,424 vs 2,380 sqft); Built same year (1993); Similar lot size (9,141 vs 8,470 sqft)
    $279,360
  • 18052 S Crystal Ln, Lansing, IL 60438
    2,129 sqft | $136/sqft | built 1993 | 10% smaller (2,129 vs 2,380 sqft); Built same year (1993); Similar lot size (8,470 vs 8,470 sqft)
    $290,010
  • 18345 Country Ln, Lansing, IL 60438
    2,260 sqft | $111/sqft | built 1997 | 5% smaller (2,260 vs 2,380 sqft); Similar age (1997 vs 1993); Similar lot size (9,000 vs 8,470 sqft)
    $250,190
  • 18134 Jason Ln, Lansing, IL 60438
    2,462 sqft | $110/sqft | built 1987 | Similar size (2,462 vs 2,380 sqft); Similar lot size (8,924 vs 8,470 sqft); Same quality (Average)
    $270,000

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: . 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$310,010$00.0%
2024$310,010$00.0%
2023$310,010+$112,270+56.8%
2022$197,740$00.0%
2021$197,740$00.0%
2020$197,740——
5-year total+$112,270+56.8%