Cook County Value

540 Linden Ave, Oak Park, IL 60302

5 bed / 3 bath, 3,363 sqft, built 1899, in Oak Park. Assessor market value for 2026: $1,325,460.

Cook County account 16064210020000

Likely too high

about $22,000

8 similar homes nearby point to a value about $22,000 lower than yours.

Assessor market value$1,325,460
Similar homes$1,303,263
$22,197 gap · bars start at $0

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

Assessor market value
$1,325,460
Tax year 2026 · before exemptions; the assessed value on your notice is 10% of it
Living area
3,363 sqft
$394 per sqft
Year built
1899
Average quality

Why we think so

Similar homes' assessments

Strong

6 of 8 similar homes are assessed lower per square foot. Their similarity-weighted median is $374.57/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 $313,200. Counting your land in place of theirs where theirs is less, they support a value of $1,303,263.

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 60302, Oak Park, and Oak Park assessment pages.

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

Appeal deadlines

The 2026 appeal windows for Oak 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 increased 21.6% from $1,090,000 in 2025 to $1,325,460 in 2026.
  • Assessor market value per square footThe current public record shows about $394 per square foot before any comparable-property adjustments.
  • Nearby comparison areaThis page starts the equity review with public records for the Oak Park neighborhood and ZIP 60302.
  • Neighborhood value signalAmong 535 residential records in the same neighborhood, the average assessor market value is about $409 per square foot.
  • Area year-over-year signalNearby residential records with prior-year values moved about +27.9% on average.

Comparable assessments

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

  • 521 Linden Ave, Oak Park, IL 60302
    3,447 sqft | $386/sqft | built 1911 | Similar size (3,447 vs 3,363 sqft); Similar lot size (17,497 vs 17,400 sqft); Same quality (Average)
    $1,329,750
  • 623 N East Ave, Oak Park, IL 60302
    3,733 sqft | $367/sqft | built 1908 | 11% larger (3,733 vs 3,363 sqft); Similar lot size (17,300 vs 17,400 sqft); Same quality (Average)
    $1,370,000
  • 636 Linden Ave, Oak Park, IL 60302
    3,347 sqft | $405/sqft | built 1914 | Similar size (3,347 vs 3,363 sqft); Similar lot size (18,165 vs 17,400 sqft); Same quality (Average)
    $1,355,840
  • 643 N East Ave, Oak Park, IL 60302
    3,255 sqft | $372/sqft | built 1913 | Similar size (3,255 vs 3,363 sqft); Similar lot size (16,369 vs 17,400 sqft); Same quality (Average)
    $1,210,000
  • 328 N Kenilworth Ave, Oak Park, IL 60302
    3,690 sqft | $360/sqft | built 1888 | 10% larger (3,690 vs 3,363 sqft); Similar lot size (18,000 vs 17,400 sqft); Same quality (Average)
    $1,330,000

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 21.6% in 2026 from 2025.

Assessor market value by tax year, with the change from the previous year listed
Tax yearAssessor market valueChangeChange %
2026$1,325,460+$235,460+21.6%
2025$1,090,000$00.0%
2024$1,090,000$00.0%
2023$1,090,000+$270,000+32.9%
2022$820,000$00.0%
2021$820,000−$61,230−6.9%
2020$881,230——
6-year total+$444,230+50.4%