Cook County Value

1240 N Astor St, Chicago, IL 60610

4 bed / 3 bath, 3,646 sqft, built 1888, in North Chicago Assessor market value for 2025: $2,140,000.

Cook County account 17031090250000

Likely too high

about $112,000

8 similar homes nearby point to a value about $112,000 lower than yours.

Assessor market value$2,140,000
Similar homes$2,028,233
$111,767 gap · bars start at $0

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

Assessor market value
$2,140,000
Tax year 2025 · before exemptions; the assessed value on your notice is 10% of it
Living area
3,646 sqft
$587 per sqft
Year built
1888
Average quality

Why we think so

Similar homes' assessments

Strong

4 of 8 similar homes are assessed lower per square foot. Their similarity-weighted median is $537.43/sqft, but land is valued apart from the home, and some of them have less land value per square foot of home than yours, which counts as $635,280. Counting your land in place of theirs where theirs is less, they support a value of $2,028,233.

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 60610, North Chicago, and Lincoln Park assessment pages.

Appeal deadlines

North Chicago 2026 appeal dates have not been published yet.

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 $2,140,000 in 2024 to $2,140,000 in 2025.
  • Assessor market value per square footThe current public record shows about $587 per square foot before any comparable-property adjustments.
  • Nearby comparison areaThis page starts the equity review with public records for the North Chicago neighborhood and ZIP 60610.
  • Neighborhood value signalAmong 392 residential records in the same neighborhood, the average assessor market value is about $785 per square foot.
  • Area year-over-year signalNearby residential records with prior-year values stayed about flat on average.

Comparable assessments

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

  • 1310 N Astor St, Chicago, IL 60610
    3,647 sqft | $537/sqft | built 1889 | Similar size (3,647 vs 3,646 sqft); Similar age (1889 vs 1888); Lot 11% smaller (1,825 vs 2,046 sqft)
    $1,960,000
  • 1441 N Dearborn St, Chicago, IL 60610
    3,504 sqft | $620/sqft | built 1889 | Similar size (3,504 vs 3,646 sqft); Similar age (1889 vs 1888); Similar lot size (2,150 vs 2,046 sqft)
    $2,173,800
  • 79 E Cedar St, Chicago, IL 60611
    3,576 sqft | $529/sqft | built 1888 | Similar size (3,576 vs 3,646 sqft); Built same year (1888); Similar lot size (1,852 vs 2,046 sqft)
    $1,890,000
  • 57 E Division St, Chicago, IL 60610
    3,526 sqft | $746/sqft | built 1891 | Similar size (3,526 vs 3,646 sqft); Similar age (1891 vs 1888); Similar lot size (1,914 vs 2,046 sqft)
    $2,630,000
  • 33 E Division St, Chicago, IL 60610
    3,585 sqft | $502/sqft | built 1883 | Similar size (3,585 vs 3,646 sqft); Similar age (1883 vs 1888); Similar lot size (2,029 vs 2,046 sqft)
    $1,800,010

Recent comparable sales

No usable comparable sales are available in this data snapshot.

Public appraisal comparison for 2025. 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 2025 from 2024.

Assessor market value by tax year, with the change from the previous year listed
Tax yearAssessor market valueChangeChange %
2025$2,140,000$00.0%
2024$2,140,000+$35,200+1.7%
2023$2,104,800$00.0%
2022$2,104,800$00.0%
2021$2,104,800+$416,600+24.7%
2020$1,688,200——
5-year total+$451,800+26.8%