Cook County Value

3120 Elder Ln Franklin Park, IL 60131

3 bed / 2 bath, 1,260 sqft, built 1943, in Leyden. Assessor market value for 2026: $270,120.

Cook County account 12282010460000

Assessor market value
$270,120
Tax year 2026 · before exemptions; the assessed value on your notice is 10% of it
Living area
1,260 sqft
$214 per sqft
Year built
1943
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 60131 and Leyden assessment pages.

Local guide: Leyden Township 2026 Property Tax Appeal Guide.

Appeal deadlines

For Leyden, appeals to the Assessor closed . Board of Review dates for Leyden 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 decreased 10.0% from $300,000 in 2025 to $270,120 in 2026.
  • Assessor market value per square footThe current public record shows about $214 per square foot before any comparable-property adjustments.
  • Nearby comparison areaThis page starts the equity review with public records for the Leyden neighborhood and ZIP 60131.
  • Neighborhood value signalAmong 4,063 residential records in the same neighborhood, the average assessor market value is about $213 per square foot.
  • Area year-over-year signalNearby residential records with prior-year values moved about -1.0% on average.

Comparable assessments

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

  • 2542 Oak St Franklin Park, IL 60131
    1,256 sqft | $223/sqft | built 1942 | Similar size (1,256 vs 1,260 sqft); Similar age (1942 vs 1943); Similar lot size (4,875 vs 4,960 sqft)
    $280,010
  • 2530 Oak St Franklin Park, IL 60131
    1,260 sqft | $206/sqft | built 1946 | Similar size (1,260 vs 1,260 sqft); Similar age (1946 vs 1943); Similar lot size (4,875 vs 4,960 sqft)
    $260,010
  • 3510 De Sota Ct Franklin Park, IL 60131
    1,253 sqft | $239/sqft | built 1946 | Similar size (1,253 vs 1,260 sqft); Similar age (1946 vs 1943); Similar lot size (4,893 vs 4,960 sqft)
    $300,000
  • 3107 George St Franklin Park, IL 60131
    1,256 sqft | $233/sqft | built 1954 | Similar size (1,256 vs 1,260 sqft); Similar lot size (4,960 vs 4,960 sqft); Same quality (Average)
    $293,200
  • 9511 Davis St Franklin Park, IL 60131
    1,256 sqft | $255/sqft | built 1948 | Similar size (1,256 vs 1,260 sqft); Similar age (1948 vs 1943); Similar lot size (4,680 vs 4,960 sqft)
    $320,000

Recent comparable sales

Sales selected by similarity to the subject property.

  • 9533 Nichols Ave Franklin Park, IL 60131
    1,483 sqft | $217/sqft | built 1948 | Moderate age difference (5 years newer); Same beds (3)
    $322,000
  • 3663 Dora St Franklin Park, IL 60131
    1,050 sqft | $168/sqft | built 1959 | Same beds (3)
    $176,000

Public appraisal comparison for 2026. 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 10.0% in 2026 from 2025.

Assessor market value by tax year, with the change from the previous year listed
Tax yearAssessor market valueChangeChange %
2026$270,120−$29,880−10.0%
2025$300,000+$75,560+33.7%
2024$224,440$00.0%
2023$224,440−$17,110−7.1%
2022$241,550+$66,520+38.0%
2021$175,030+$100.0%
2020$175,020——
6-year total+$95,100+54.3%