Cook County Value

4929 N Octavia Ave Harwood Heights, IL 60706

4 bed / 2 bath, 2,074 sqft, built 1960, in Norwood Park. Assessor market value for 2026: $510,000.

Cook County account 12124280040000

Assessor market value
$510,000
Tax year 2026 · before exemptions; the assessed value on your notice is 10% of it
Living area
2,074 sqft
$246 per sqft
Year built
1960
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 60706 and Norwood Park assessment pages.

Local guide: Norwood Park Township 2026 Property Tax Appeal Guide.

Appeal deadlines

The 2026 appeal windows for Norwood Park 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 $510,000 in 2025 to $510,000 in 2026.
  • Assessor market value per square footThe current public record shows about $246 per square foot before any comparable-property adjustments.
  • Nearby comparison areaThis page starts the equity review with public records for the Norwood Park neighborhood and ZIP 60706.
  • Neighborhood value signalAmong 6,118 residential records in the same neighborhood, the average assessor market value is about $281 per square foot.
  • Area year-over-year signalNearby residential records with prior-year values moved about -1.2% on average.

Comparable assessments

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

  • 4656 N Ozanam Ave Norridge, IL 60706
    2,055 sqft | $256/sqft | built 1961 | Similar size (2,055 vs 2,074 sqft); Similar age (1961 vs 1960); Similar lot size (9,584 vs 9,982 sqft)
    $525,430
  • 8128 W Strong St Norridge, IL 60706
    2,020 sqft | $252/sqft | built 1956 | Similar size (2,020 vs 2,074 sqft); Similar age (1956 vs 1960); Similar lot size (10,050 vs 9,982 sqft)
    $510,000
  • 8111 W Winnemac Ave Norridge, IL 60706
    2,085 sqft | $216/sqft | built 1952 | Similar size (2,085 vs 2,074 sqft); Similar lot size (10,106 vs 9,982 sqft); Same quality (Average)
    $450,000
  • 8146 W Charmaine Rd Norridge, IL 60706
    2,066 sqft | $227/sqft | built 1954 | Similar size (2,066 vs 2,074 sqft); Similar lot size (10,286 vs 9,982 sqft); Same quality (Average)
    $470,000
  • 8312 W Leland Ave Norridge, IL 60706
    2,092 sqft | $253/sqft | built 1964 | Similar size (2,092 vs 2,074 sqft); Similar age (1964 vs 1960); Similar lot size (9,142 vs 9,982 sqft)
    $530,000

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$510,000$00.0%
2025$510,000+$70,000+15.9%
2024$440,000$00.0%
2023$440,000$00.0%
2022$440,000+$80,270+22.3%
2021$359,730−$22,510−5.9%
2020$382,240——
6-year total+$127,760+33.4%