Cook County Value

12817 Artesian St Lemont, IL 60439

3 bed / 1 bath, 1,413 sqft, built 1970, in Lemont. Assessor market value for 2026: $370,000.

Cook County account 22232060100000

Assessor market value
$370,000
Tax year 2026 · before exemptions; the assessed value on your notice is 10% of it
Living area
1,413 sqft
$262 per sqft
Year built
1970
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 30.3% from $283,900 in 2025 to $370,000 in 2026.
  • Assessor market value per square footThe current public record shows about $262 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 636 residential records in the same neighborhood, the average assessor market value is about $286 per square foot.
  • Area year-over-year signalNearby residential records with prior-year values moved about +33.3% on average.

Comparable assessments

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

  • 11500 Woodlawn Ave Lemont, IL 60439
    1,433 sqft | $356/sqft | built 1969 | Similar size (1,433 vs 1,413 sqft); Similar age (1969 vs 1970); Lot 11% smaller (24,300 vs 27,255 sqft)
    $510,010
  • 1250 117th St Lemont, IL 60439
    1,350 sqft | $304/sqft | built 1977 | Similar size (1,350 vs 1,413 sqft); Similar lot size (26,510 vs 27,255 sqft); Same quality (Average)
    $410,000
  • 12125 Hillcrest Dr Lemont, IL 60439
    1,343 sqft | $305/sqft | built 1978 | Similar size (1,343 vs 1,413 sqft); Similar lot size (25,972 vs 27,255 sqft); Same quality (Average)
    $410,000
  • 11802 Center Dr Lemont, IL 60439
    1,377 sqft | $312/sqft | built 1963 | Similar size (1,377 vs 1,413 sqft); Lot 10% smaller (24,490 vs 27,255 sqft); Same quality (Average)
    $430,000
  • 12085 Center Dr Lemont, IL 60439
    1,408 sqft | $277/sqft | built 1956 | Similar size (1,408 vs 1,413 sqft); Similar lot size (26,000 vs 27,255 sqft); Same quality (Average)
    $390,000

Recent comparable sales

Sales selected by similarity to the subject property.

  • 1030 Crestview Dr Lemont, IL 60439
    1,364 sqft | $183/sqft | built 1966 | Similar size (1,364 sqft); Moderate age difference (4 years older); Same beds (3)
    $250,000
  • 545 4th St Lemont, IL 60439
    1,274 sqft | $373/sqft | built 1975 | 10% size difference (1,274 sqft); Moderate age difference (5 years newer); Same beds (3)
    $475,000

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

Up 30.3% in 2026 from 2025.

Assessor market value by tax year, with the change from the previous year listed
Tax yearAssessor market valueChangeChange %
2026$370,000+$86,100+30.3%
2025$283,900−$17,820−5.9%
2024$301,720$00.0%
2023$301,720+$106,180+54.3%
2022$195,540$00.0%
2021$195,540$00.0%
2020$195,540——
6-year total+$174,460+89.2%