Cook County Value

5905 Ruby St Rosemont, IL 60018

3 bed / 1 bath, 1,231 sqft, built 1971, in Leyden. Assessor market value for 2026: $418,650.

Cook County account 12044030140000

In line with similar homes

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

Assessor market value$418,650
Similar homes$418,650
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
$418,650
Tax year 2026 · before exemptions; the assessed value on your notice is 10% of it
Living area
1,231 sqft
$340 per sqft
Year built
1971
Average quality

What we found

Similar homes' assessments

Weak

4 of 8 similar homes are assessed lower per square foot. Their similarity-weighted median is $339.53/sqft, but land is valued apart from the home, and some of them have less land value per square foot of home than yours, which counts as $87,510. Counting your land in place of theirs where theirs is less, they support a value of $418,650.

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 60018 and Leyden assessment pages.

Local guide: Leyden Township 2026 Property Tax Appeal Guide.

Appeal deadlines

For Leyden, appeals to the Assessor closed . Board of Review dates for Leyden 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 decreased 4.9% from $440,000 in 2025 to $418,650 in 2026.
  • Assessor market value per square footThe current public record shows about $340 per square foot before any comparable-property adjustments.
  • Nearby comparison areaThis page starts the equity review with public records for the Leyden neighborhood and ZIP 60018.
  • Neighborhood value signalAmong 503 residential records in the same neighborhood, the average assessor market value is about $240 per square foot.
  • Area year-over-year signalNearby residential records with prior-year values moved about -1.8% on average.

Comparable assessments

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

  • 5991 Ruby St Rosemont, IL 60018
    1,231 sqft | $357/sqft | built 1969 | Similar size (1,231 vs 1,231 sqft); Similar age (1969 vs 1971); Similar lot size (6,050 vs 6,251 sqft)
    $440,000
  • 6311 Kirschoff Rd Hse Rosemont, IL 60018
    1,218 sqft | $341/sqft | built 1974 | Similar size (1,218 vs 1,231 sqft); Similar age (1974 vs 1971); Similar lot size (6,210 vs 6,251 sqft)
    $415,070
  • 6001 Ruby St Rosemont, IL 60018
    1,254 sqft | $340/sqft | built 1969 | Similar size (1,254 vs 1,231 sqft); Similar age (1969 vs 1971); Similar lot size (6,317 vs 6,251 sqft)
    $425,770
  • 5951 Ruby St Rosemont, IL 60018
    1,232 sqft | $333/sqft | built 1970 | Similar size (1,232 vs 1,231 sqft); Similar age (1970 vs 1971); Similar lot size (5,901 vs 6,251 sqft)
    $410,000
  • 9921 Granville Ave Rosemont, IL 60018
    1,228 sqft | $327/sqft | built 1969 | Similar size (1,228 vs 1,231 sqft); Similar age (1969 vs 1971); Similar lot size (5,873 vs 6,251 sqft)
    $402,110

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

Down 4.9% in 2026 from 2025.

Assessor market value by tax year, with the change from the previous year listed
Tax yearAssessor market valueChangeChange %
2026$418,650−$21,350−4.9%
2025$440,000+$30,000+7.3%
2024$410,000+$148,140+56.6%
2020$261,860——
6-year total+$156,790+59.9%