Cook County Value

7721 N Oconto Ave, Niles, IL 60714

5 bed / 2 bath, 1,908 sqft, built 1953, in Leyden Assessor market value for 2026: $440,010.

Cook County account 09252040490000

In line with similar homes

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

Assessor market value$440,010
Similar homes$453,092
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
$440,010
Tax year 2026 · before exemptions; the assessed value on your notice is 10% of it
Living area
1,908 sqft
$231 per sqft
Year built
1953
Average quality

What we found

Similar homes' assessments

Weak

3 of 8 similar homes are assessed lower per square foot. Their similarity-weighted median is $237.47/sqft, which supports a value of $453,092.

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 60714 and Leyden assessment pages.

Local guide: Maine Township 2026 Property Tax Appeal Guide.

Appeal deadlines

The 2026 appeal windows for Maine have closed (Assessor , Board of Review ). 2027 notices usually start in March.

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 18.9% from $370,010 in 2025 to $440,010 in 2026.
  • Assessor market value per square footThe current public record shows about $231 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 60714.
  • Neighborhood value signalAmong 4,336 residential records in the same neighborhood, the average assessor market value is about $284 per square foot.
  • Area year-over-year signalNearby residential records with prior-year values moved about -1.5% on average.

Comparable assessments

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

  • 7519 W Cleveland St, Niles, IL 60714
    1,947 sqft | $241/sqft | built 1957 | Similar size (1,947 vs 1,908 sqft); Similar age (1957 vs 1953); Similar lot size (5,985 vs 5,985 sqft)
    $470,010
  • 8118 N Ozark Ave, Niles, IL 60714
    1,945 sqft | $226/sqft | built 1951 | Similar size (1,945 vs 1,908 sqft); Similar age (1951 vs 1953); Similar lot size (6,030 vs 5,985 sqft)
    $440,000
  • 8123 N Octavia Ave, Niles, IL 60714
    1,904 sqft | $242/sqft | built 1955 | Similar size (1,904 vs 1,908 sqft); Similar age (1955 vs 1953); Similar lot size (6,030 vs 5,985 sqft)
    $460,000
  • 7648 N Olcott Ave, Niles, IL 60714
    1,891 sqft | $237/sqft | built 1954 | Similar size (1,891 vs 1,908 sqft); Similar age (1954 vs 1953); Similar lot size (6,251 vs 5,985 sqft)
    $449,060
  • 8312 N Wisner St, Niles, IL 60714
    1,890 sqft | $233/sqft | built 1954 | Similar size (1,890 vs 1,908 sqft); Similar age (1954 vs 1953); Similar lot size (6,250 vs 5,985 sqft)
    $440,000

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 18.9% in 2026 from 2025.

Assessor market value by tax year, with the change from the previous year listed
Tax yearAssessor market valueChangeChange %
2026$440,010+$70,000+18.9%
2025$370,010+$40,000+12.1%
2024$330,010$00.0%
2023$330,010$00.0%
2022$330,010+$161,720+96.1%
2021$168,290$00.0%
2020$168,290——
6-year total+$271,720+161.5%