Cook County Value

9027 Oconto Ave, Morton Grove, IL 60053

4 bed / 2 bath, 1,820 sqft, built 1956, in Leyden. Assessor market value for 2026: $440,000.

Cook County account 09134090050000

Assessor market value
$440,000
Tax year 2026 · before exemptions; the assessed value on your notice is 10% of it
Living area
1,820 sqft
$242 per sqft
Year built
1956
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 60053 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 stayed about the same, from $440,000 in 2025 to $440,000 in 2026.
  • Assessor market value per square footThe current public record shows about $242 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 60053.
  • 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

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

  • 8735 N Olcott Ave, Niles, IL 60714
    1,795 sqft | $240/sqft | built 1958 | Similar size (1,795 vs 1,820 sqft); Similar age (1958 vs 1956); Similar lot size (6,968 vs 7,040 sqft)
    $430,000
  • 8701 N Elmore St, Niles, IL 60714
    1,815 sqft | $244/sqft | built 1958 | Similar size (1,815 vs 1,820 sqft); Similar age (1958 vs 1956); Similar lot size (7,041 vs 7,040 sqft)
    $442,370
  • 8823 Olcott Ave, Morton Grove, IL 60053
    1,777 sqft | $226/sqft | built 1955 | Similar size (1,777 vs 1,820 sqft); Similar age (1955 vs 1956); Similar lot size (7,150 vs 7,040 sqft)
    $402,150
  • 7721 N Oriole Ave, Niles, IL 60714
    1,863 sqft | $258/sqft | built 1955 | Similar size (1,863 vs 1,820 sqft); Similar age (1955 vs 1956); Similar lot size (6,916 vs 7,040 sqft)
    $480,000
  • 7339 W Greenleaf Ave, Niles, IL 60714
    1,836 sqft | $261/sqft | built 1956 | Similar size (1,836 vs 1,820 sqft); Built same year (1956); Similar lot size (6,916 vs 7,040 sqft)
    $480,000

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

No change in 2026 from 2025.

Assessor market value by tax year, with the change from the previous year listed
Tax yearAssessor market valueChangeChange %
2026$440,000$00.0%
2025$440,000+$80,000+22.2%
2024$360,000$00.0%
2023$360,000$00.0%
2022$360,000+$103,790+40.5%
2021$256,210$00.0%
2020$256,210——
6-year total+$183,790+71.7%