Cook County Value

17 E Custer St Lemont, IL 60439

2 bed / 1 bath, 1,069 sqft, built 1951, in Lemont. Assessor market value for 2026: $360,000.

Cook County account 22291010100000

Assessor market value
$360,000
Tax year 2026 · before exemptions; the assessed value on your notice is 10% of it
Living area
1,069 sqft
$337 per sqft
Year built
1951
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 20.0% from $300,000 in 2025 to $360,000 in 2026.
  • Assessor market value per square footThe current public record shows about $337 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 1,277 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 +25.5% on average.

Comparable assessments

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

  • 415 Holmes St Lemont, IL 60439
    1,045 sqft | $383/sqft | built 1955 | Similar size (1,045 vs 1,069 sqft); Similar age (1955 vs 1951); Similar lot size (6,850 vs 7,000 sqft)
    $400,000
  • 309 Freehauf St Lemont, IL 60439
    1,081 sqft | $231/sqft | built 1949 | Similar size (1,081 vs 1,069 sqft); Similar age (1949 vs 1951); Similar lot size (6,630 vs 7,000 sqft)
    $250,000
  • 828 Warner Ave Lemont, IL 60439
    1,056 sqft | $284/sqft | built 1959 | Similar size (1,056 vs 1,069 sqft); Similar lot size (7,322 vs 7,000 sqft); Same quality (Average)
    $300,000
  • 906 John St Lemont, IL 60439
    1,032 sqft | $262/sqft | built 1954 | Similar size (1,032 vs 1,069 sqft); Similar age (1954 vs 1951); Similar lot size (7,500 vs 7,000 sqft)
    $270,010
  • 708 Emil St Lemont, IL 60439
    1,085 sqft | $276/sqft | built 1958 | Similar size (1,085 vs 1,069 sqft); Similar lot size (7,250 vs 7,000 sqft); Same quality (Average)
    $300,000

Recent comparable sales

Sales selected by similarity to the subject property.

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 20.0% in 2026 from 2025.

Assessor market value by tax year, with the change from the previous year listed
Tax yearAssessor market valueChangeChange %
2026$360,000+$60,000+20.0%
2025$300,000$00.0%
2024$300,000$00.0%
2023$300,000+$89,500+42.5%
2022$210,500$00.0%
2021$210,500+$100.0%
2020$210,490——
6-year total+$149,510+71.0%