Cook County Value

12936 Fairmont Ln Unknown

4 bed / 3 bath, 3,475 sqft, built 2022, in Lemont. Assessor market value for 2026: $930,000.

Cook County account 22262050200000

Assessor market value
$930,000
Tax year 2026 · before exemptions; the assessed value on your notice is 10% of it
Living area
3,475 sqft
$268 per sqft
Year built
2022
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 Lemont assessment pages.

Local guide: Lemont Township 2026 Property Tax Appeal Guide.

Appeal deadlines

For Lemont, appeals to the Assessor closed . Board of Review dates for Lemont 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 increased 25.3% from $742,110 in 2025 to $930,000 in 2026.
  • Assessor market value per square footThe current public record shows about $268 per square foot before any comparable-property adjustments.
  • Nearby comparison areaThis page starts the equity review with public records for the Lemont neighborhood.
  • Neighborhood value signalAmong 2,806 residential records in the same neighborhood, the average assessor market value is about $255 per square foot.
  • Area year-over-year signalNearby residential records with prior-year values moved about +30.4% on average.

Comparable assessments

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

  • 12872 Fairmont Lane Unknown
    3,412 sqft | $284/sqft | built 2021 | Similar size (3,412 vs 3,475 sqft); Similar age (2021 vs 2022); Similar lot size (9,657 vs 9,760 sqft)
    $970,000
  • 13819 Amelia Dr Lemont, IL 60439
    3,525 sqft | $238/sqft | built 2018 | Similar size (3,525 vs 3,475 sqft); Similar age (2018 vs 2022); Similar lot size (10,301 vs 9,760 sqft)
    $840,000
  • 13801 Amelia Dr Lemont, IL 60439
    3,422 sqft | $251/sqft | built 2016 | Similar size (3,422 vs 3,475 sqft); Similar lot size (10,289 vs 9,760 sqft); Same quality (Average)
    $860,000
  • 13319 Anne Dr Lemont, IL 60439
    3,440 sqft | $241/sqft | built 2013 | Similar size (3,440 vs 3,475 sqft); Similar lot size (10,100 vs 9,760 sqft); Same quality (Average)
    $830,010
  • 13354 Anne Dr Lemont, IL 60439
    3,440 sqft | $241/sqft | built 2013 | Similar size (3,440 vs 3,475 sqft); Similar lot size (10,148 vs 9,760 sqft); Same quality (Average)
    $830,000

Recent comparable sales

No usable comparable sales are available in this data snapshot.

Public appraisal comparison for 2026. Prepared . Appraisal source: Cook County Assessor's Office. Matches consider available size, age, location and property characteristics. How comparisons work.

Value history

Up 25.3% in 2026 from 2025.

Assessor market value by tax year, with the change from the previous year listed
Tax yearAssessor market valueChangeChange %
2026$930,000+$187,890+25.3%
2025$742,110$00.0%
2024$742,110−$27,890−3.6%
2023$770,000+$198,540+34.7%
2022$571,460+$510,460+836.8%
2021$61,000$00.0%
2020$61,000——
6-year total+$869,000+1424.6%