Cook County Value

1621 Portsmouth Ln, Schaumburg, IL 60194

3 bed / 2 bath, 1,521 sqft, built 1971, in Schaumburg. Assessor market value for 2025: $360,000.

Cook County account 07201140040000

Assessor market value
$360,000
Tax year 2025 · before exemptions; the assessed value on your notice is 10% of it
Living area
1,521 sqft
$237 per sqft
Year built
1971
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 60194, Schaumburg, and Schaumburg assessment pages.

Appeal deadlines

Schaumburg 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 $360,000 in 2024 to $360,000 in 2025.
  • Assessor market value per square footThe current public record shows about $237 per square foot before any comparable-property adjustments.
  • Nearby comparison areaThis page starts the equity review with public records for the Schaumburg neighborhood and ZIP 60194.
  • Neighborhood value signalAmong 3,851 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 stayed about flat on average.

Comparable assessments

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

  • 933 Carlton Ln, Schaumburg, IL 60193
    1,506 sqft | $266/sqft | built 1970 | Similar size (1,506 vs 1,521 sqft); Similar age (1970 vs 1971); Similar lot size (9,406 vs 9,234 sqft)
    $400,000
  • 230 Compton Ln, Schaumburg, IL 60194
    1,530 sqft | $242/sqft | built 1971 | Similar size (1,530 vs 1,521 sqft); Built same year (1971); Similar lot size (9,750 vs 9,234 sqft)
    $370,010
  • 427 Selkirk Dr, Schaumburg, IL 60194
    1,523 sqft | $243/sqft | built 1972 | Similar size (1,523 vs 1,521 sqft); Similar age (1972 vs 1971); Similar lot size (9,436 vs 9,234 sqft)
    $370,000
  • 1923 Arklow Pl, Schaumburg, IL 60194
    1,530 sqft | $235/sqft | built 1972 | Similar size (1,530 vs 1,521 sqft); Similar age (1972 vs 1971); Similar lot size (9,722 vs 9,234 sqft)
    $360,000
  • 726 Keats Ct, Schaumburg, IL 60193
    1,507 sqft | $272/sqft | built 1969 | Similar size (1,507 vs 1,521 sqft); Similar age (1969 vs 1971); Similar lot size (9,595 vs 9,234 sqft)
    $410,000

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

Up 24.1% in 2025 from 2024.

Assessor market value by tax year, with the change from the previous year listed
Tax yearAssessor market valueChangeChange %
2025$360,000+$70,000+24.1%
2024$290,000$00.0%
2023$290,000$00.0%
2022$290,000+$56,010+23.9%
2021$233,990$00.0%
2020$233,990——
5-year total+$126,010+53.9%