Cook County Value

221 Dawson Dr, Mount Prospect, IL 60056

3 bed / 2 bath, 2,006 sqft, built 2021, in Elk Grove. Assessor market value for 2026: $523,630.

Cook County account 08121220740000

In line with similar homes

8 similar homes nearby support a value within $100 of yours.

Assessor market value$523,630
Similar homes$523,626
$4 gap: no meaningful difference · bars start at $0

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

Assessor market value
$523,630
Tax year 2026 · before exemptions; the assessed value on your notice is 10% of it
Living area
2,006 sqft
$261 per sqft
Year built
2021
Average quality

What we found

Similar homes' assessments

Weak

2 of 8 similar homes are assessed lower per square foot. Their similarity-weighted median is $261.03/sqft, which supports a value of $523,626.

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 60056 and Elk Grove assessment pages.

Local guide: Elk Grove Township 2026 Property Tax Appeal Guide.

Appeal deadlines

The 2026 appeal windows for Elk Grove 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 decreased 1.2% from $530,000 in 2025 to $523,630 in 2026.
  • Assessor market value per square footThe current public record shows about $261 per square foot before any comparable-property adjustments.
  • Nearby comparison areaThis page starts the equity review with public records for the Elk Grove neighborhood and ZIP 60056.
  • Neighborhood value signalAmong 3,630 residential records in the same neighborhood, the average assessor market value is about $265 per square foot.
  • Area year-over-year signalNearby residential records with prior-year values moved about -1.9% on average.

Comparable assessments

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

Recent comparable sales

Sales selected by similarity to the subject property.

  • 201 Dawson Dr, Mount Prospect, IL 60056
    2,006 sqft | $299/sqft | built 2021 | Similar size (2,006 sqft); Similar age (2021); Same beds (3)
    $600,000

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

Down 1.2% in 2026 from 2025.

Assessor market value by tax year, with the change from the previous year listed
Tax yearAssessor market valueChangeChange %
2026$523,630−$6,370−1.2%
2025$530,000+$69,390+15.1%
2024$460,610——
2-year total+$63,020+13.7%