Cook County Value

15915 Cottage Grove Ave South Holland, IL 60473

3 bed / 1 bath, 1,526 sqft, built 1951, in Thornton. Assessor market value for 2025: $160,070.

Cook County account 29143040400000

In line with similar homes

8 similar homes nearby support a value at or above your county value.

Assessor market value$160,070
Similar homes$185,958
No gap: similar homes are at or above the county value · bars start at $0

How sure: High · 8 similar homes (5 shown below) · public records only

Assessor market value
$160,070
Tax year 2025 · before exemptions; the assessed value on your notice is 10% of it
Living area
1,526 sqft
$105 per sqft
Year built
1951
Average quality

What we found

Similar homes' assessments

Weak

0 of 8 similar homes are assessed lower per square foot. Their similarity-weighted median is $121.86/sqft, which supports a value of $185,958.

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 60473 and Thornton assessment pages.

Appeal deadlines

Thornton 2026 appeal dates 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 stayed about the same, from $160,070 in 2024 to $160,070 in 2025.
  • Assessor market value per square footThe current public record shows about $105 per square foot before any comparable-property adjustments.
  • Nearby comparison areaThis page starts the equity review with public records for the Thornton neighborhood and ZIP 60473.
  • Neighborhood value signalAmong 1,944 residential records in the same neighborhood, the average assessor market value is about $150 per square foot.
  • Area year-over-year signalNearby residential records with prior-year values stayed about flat on average.

Comparable assessments

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

  • 366 E 166th St South Holland, IL 60473
    1,569 sqft | $116/sqft | built 1949 | Similar size (1,569 vs 1,526 sqft); Similar age (1949 vs 1951); Similar lot size (17,472 vs 17,000 sqft)
    $181,730
  • 509 E 160th Pl South Holland, IL 60473
    1,562 sqft | $128/sqft | built 1954 | Similar size (1,562 vs 1,526 sqft); Similar age (1954 vs 1951); Similar lot size (15,394 vs 17,000 sqft)
    $200,000
  • 1121 Blouin Dr, Dolton, IL 60419
    1,531 sqft | $121/sqft | built 1961 | Similar size (1,531 vs 1,526 sqft); Similar lot size (18,250 vs 17,000 sqft); Same quality (Average)
    $185,810
  • 652 E 159th Ct South Holland, IL 60473
    1,560 sqft | $122/sqft | built 1954 | Similar size (1,560 vs 1,526 sqft); Similar age (1954 vs 1951); Lot 19% larger (20,277 vs 17,000 sqft)
    $190,100
  • 662 E 159th Ct South Holland, IL 60473
    1,554 sqft | $129/sqft | built 1954 | Similar size (1,554 vs 1,526 sqft); Similar age (1954 vs 1951); Lot 13% larger (19,167 vs 17,000 sqft)
    $200,630

Recent comparable sales

Sales selected by similarity to the subject property.

  • 16535 Elm Ct South Holland, IL 60473
    1,540 sqft | $153/sqft | built 1965 | Similar size (1,540 sqft); Same beds (3)
    $235,000
  • 16346 Maryland Ave South Holland, IL 60473
    1,605 sqft | $156/sqft | built 1965 | 5% size difference (1,605 sqft); Within 1 bedroom (4 vs 3)
    $250,000

Public appraisal comparison for 2025. 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

No change in 2025 from 2024.

Assessor market value by tax year, with the change from the previous year listed
Tax yearAssessor market valueChangeChange %
2025$160,070$00.0%
2024$160,070−$9,180−5.4%
2023$169,250+$60,240+55.3%
2022$109,010$00.0%
2021$109,010$00.0%
2020$109,010——
5-year total+$51,060+46.8%