Cook County Value

26 Gail Ave Northlake, IL 60164

3 bed / 1 bath, 1,239 sqft, built 1962, in Proviso. Assessor market value for 2026: $280,000.

Cook County account 15051050330000

Small or uncertain difference

about $4,000

8 similar homes nearby point to a value about $4,000 lower than yours, a small or uncertain difference.

Assessor market value$280,000
Similar homes$275,776
$4,224 gap · bars start at $0

How sure: High · 8 similar homes (5 shown below) · public records only

Assessor market value
$280,000
Tax year 2026 · before exemptions; the assessed value on your notice is 10% of it
Living area
1,239 sqft
$226 per sqft
Year built
1962
Average quality

Why we think so

Similar homes' assessments

Weak

4 of 8 similar homes are assessed lower per square foot. Their similarity-weighted median is $222.58/sqft, which supports a value of $275,776.

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 23.2% from $227,190 in 2025 to $280,000 in 2026.
  • Assessor market value per square footThe current public record shows about $226 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

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

  • 418 Morse Ave Hse Northlake, IL 60164
    1,258 sqft | $223/sqft | built 1961 | Similar size (1,258 vs 1,239 sqft); Similar age (1961 vs 1962); Similar lot size (10,184 vs 9,364 sqft)
    $280,000
  • 208 E Hirsch Ave Northlake, IL 60164
    1,225 sqft | $196/sqft | built 1955 | Similar size (1,225 vs 1,239 sqft); Similar lot size (8,906 vs 9,364 sqft); Same quality (Average)
    $240,000
  • 38 S Roberta Ave Northlake, IL 60164
    1,292 sqft | $194/sqft | built 1955 | Similar size (1,292 vs 1,239 sqft); Similar lot size (9,360 vs 9,364 sqft); Same quality (Average)
    $250,000
  • 326 Victoria Dr Northlake, IL 60164
    1,215 sqft | $247/sqft | built 1965 | Similar size (1,215 vs 1,239 sqft); Similar age (1965 vs 1962); Lot 11% larger (10,400 vs 9,364 sqft)
    $300,000
  • 406 E Lemoyne St Northlake, IL 60164
    1,293 sqft | $240/sqft | built 1965 | Similar size (1,293 vs 1,239 sqft); Similar age (1965 vs 1962); Similar lot size (10,050 vs 9,364 sqft)
    $310,000

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 23.2% in 2026 from 2025.

Assessor market value by tax year, with the change from the previous year listed
Tax yearAssessor market valueChangeChange %
2026$280,000+$52,810+23.2%
2025$227,190$00.0%
2024$227,190−$12,810−5.3%
2023$240,000+$51,770+27.5%
2022$188,230$00.0%
2021$188,230+$200.0%
2020$188,210——
6-year total+$91,790+48.8%