Cook County Value

312 45th Ave Northlake, IL 60164

3 bed / 1 bath, 1,300 sqft, built 1972, in Proviso Assessor market value for 2026: $300,000.

Cook County account 15052030280000

Assessor market value
$300,000
Tax year 2026 · before exemptions; the assessed value on your notice is 10% of it
Living area
1,300 sqft
$231 per sqft
Year built
1972
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 60164 and Proviso assessment pages.

Local guide: Proviso Township 2026 Property Tax Appeal Guide.

Appeal deadlines

For Proviso, appeals to the Assessor are open through (8 days left).

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 24.2% from $241,610 in 2025 to $300,000 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 Proviso neighborhood and ZIP 60164.
  • Neighborhood value signalAmong 630 residential records in the same neighborhood, the average assessor market value is about $204 per square foot.
  • Area year-over-year signalNearby residential records with prior-year values moved about +15.7% on average.

Comparable assessments

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

  • 320 E Hirsch Ave Northlake, IL 60164
    1,298 sqft | $231/sqft | built 1972 | Similar size (1,298 vs 1,300 sqft); Built same year (1972); Lot 13% larger (8,295 vs 7,320 sqft)
    $300,010
  • 123 S Roy Ave Northlake, IL 60164
    1,307 sqft | $191/sqft | built 1959 | Similar size (1,307 vs 1,300 sqft); Similar lot size (7,500 vs 7,320 sqft); Same quality (Average)
    $250,000
  • 135 S Caryl Ave Northlake, IL 60164
    1,403 sqft | $200/sqft | built 1960 | 8% larger (1,403 vs 1,300 sqft); Similar lot size (7,500 vs 7,320 sqft); Same quality (Average)
    $280,000
  • 201 S Roy Ave Northlake, IL 60164
    1,336 sqft | $210/sqft | built 1961 | Similar size (1,336 vs 1,300 sqft); Lot 14% larger (8,327 vs 7,320 sqft); Same quality (Average)
    $280,000
  • 118 S Roberta Ave Northlake, IL 60164
    1,200 sqft | $233/sqft | built 1960 | 8% smaller (1,200 vs 1,300 sqft); Similar lot size (7,735 vs 7,320 sqft); Same quality (Average)
    $280,010

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 24.2% in 2026 from 2025.

Assessor market value by tax year, with the change from the previous year listed
Tax yearAssessor market valueChangeChange %
2026$300,000+$58,390+24.2%
2025$241,610−$18,390−7.1%
2024$260,000$00.0%
2023$260,000+$124,630+92.1%
2022$135,370$00.0%
2021$135,370−$15,200−10.1%
2020$150,570——
6-year total+$149,430+99.2%