Cook County Value

12274 St. James Way Lemont, IL 60439

5 bed / 4 bath, 3,230 sqft, built 2018, in Lemont Assessor market value for 2026: $920,000.

Cook County account 22261040080000

Assessor market value
$920,000
Tax year 2026 · before exemptions; the assessed value on your notice is 10% of it
Living area
3,230 sqft
$285 per sqft
Year built
2018
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 60439 and 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 37.8% from $667,740 in 2025 to $920,000 in 2026.
  • Assessor market value per square footThe current public record shows about $285 per square foot before any comparable-property adjustments.
  • Nearby comparison areaThis page starts the equity review with public records for the Lemont neighborhood and ZIP 60439.
  • Neighborhood value signalAmong 380 residential records in the same neighborhood, the average assessor market value is about $246 per square foot.
  • Area year-over-year signalNearby residential records with prior-year values moved about +25.8% on average.

Comparable assessments

Showing 5 of the 8 similar homes in this property's equity comparison, from public appraisal records.

  • 12327 Province Dr Lemont, IL 60439
    3,223 sqft | $285/sqft | built 2017 | Similar size (3,223 vs 3,230 sqft); Similar age (2017 vs 2018); Similar lot size (12,580 vs 12,576 sqft)
    $920,010
  • 12310 Briarcliffe Dr Lemont, IL 60439
    3,157 sqft | $314/sqft | built 2023 | Similar size (3,157 vs 3,230 sqft); Similar age (2023 vs 2018); Similar lot size (12,253 vs 12,576 sqft)
    $990,000
  • 12384 Thornberry Dr Lemont, IL 60439
    3,139 sqft | $277/sqft | built 2013 | Similar size (3,139 vs 3,230 sqft); Similar age (2013 vs 2018); Similar lot size (12,314 vs 12,576 sqft)
    $870,000
  • 12497 Briarcliffe Dr Lemont, IL 60439
    3,208 sqft | $259/sqft | built 2006 | Similar size (3,208 vs 3,230 sqft); Similar lot size (12,206 vs 12,576 sqft); Same quality (Average)
    $830,000
  • 13527 Cambridge Dr Lemont, IL 60439
    3,489 sqft | $289/sqft | built 2017 | 8% larger (3,489 vs 3,230 sqft); Similar age (2017 vs 2018); Similar lot size (13,777 vs 12,576 sqft)
    $1,010,000

Recent comparable sales

Sales selected by similarity to the subject property.

  • 12554 Eileen St Lemont, IL 60439
    June-29-2026 | 3,421 sqft | $272/sqft | built 2025 | 6% size difference (3,421 sqft); Moderate age difference (7 years newer); Sold after the valuation date
    $930,895
  • 12655 Derry Dr Lemont, IL 60439
    June-29-2026 | 2,672 sqft | $266/sqft | built 2025 | Moderate age difference (7 years newer); Sold after the valuation date
    $710,150

Public appraisal comparison for 2026. 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

Up 37.8% in 2026 from 2025.

Assessor market value by tax year, with the change from the previous year listed
Tax yearAssessor market valueChangeChange %
2026$920,000+$252,260+37.8%
2025$667,740$00.0%
2024$667,740−$75,610−10.2%
2023$743,350+$274,060+58.4%
2022$469,290−$23,240−4.7%
2021$492,530−$202,470−29.1%
2020$695,000——
6-year total+$225,000+32.4%