Cook County Value

540 Valley Rd Northbrook

6 bed / 3 bath, 3,266 sqft, built 1958, in Northfield. Assessor market value for 2026: $1,094,720.

Cook County account 04142000450000

Assessor market value
$1,094,720
Tax year 2026 · before exemptions; the assessed value on your notice is 10% of it
Living area
3,266 sqft
$335 per sqft
Year built
1958
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 Northfield assessment pages.

Local guide: Northfield Township 2026 Property Tax Appeal Guide.

Appeal deadlines

For Northfield, appeals to the Assessor closed . Board of Review dates for Northfield 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 decreased 5.4% from $1,156,740 in 2025 to $1,094,720 in 2026.
  • Assessor market value per square footThe current public record shows about $335 per square foot before any comparable-property adjustments.
  • Nearby comparison areaThis page starts the equity review with public records for the Northfield neighborhood.
  • Neighborhood value signalAmong 152 residential records in the same neighborhood, the average assessor market value is about $387 per square foot.
  • Area year-over-year signalNearby residential records with prior-year values moved about +2.6% on average.

Comparable assessments

Similar public appraisal records selected for this property's equity comparison.

  • 515 Valley Way Dr Northbrook
    3,343 sqft | $347/sqft | built 1957 | Similar size (3,343 vs 3,266 sqft); Similar age (1957 vs 1958); Lot 16% larger (40,073 vs 34,433 sqft)
    $1,160,000
  • 417 Pebblebrook Rd, Northbrook, IL 60062
    3,503 sqft | $380/sqft | built 1966 | 7% larger (3,503 vs 3,266 sqft); Lot 17% larger (40,182 vs 34,433 sqft); Same quality (Average)
    $1,330,000
  • 485 Valley Way Dr Northbrook
    3,429 sqft | $359/sqft | built 1959 | Similar size (3,429 vs 3,266 sqft); Similar age (1959 vs 1958); Same quality (Average)
    $1,230,000
  • 1950 Sunset Ridge Rd Northfield, IL 60093
    3,627 sqft | $357/sqft | built 1961 | 11% larger (3,627 vs 3,266 sqft); Similar age (1961 vs 1958); Lot 16% larger (40,075 vs 34,433 sqft)
    $1,296,450
  • 1920 E Circle Dr Northbrook
    3,296 sqft | $343/sqft | built 1958 | Similar size (3,296 vs 3,266 sqft); Built same year (1958); Same quality (Average)
    $1,129,370

Recent comparable sales

No usable comparable sales are available in this data snapshot.

Public appraisal comparison for 2026. Prepared . Appraisal source: Cook County Assessor's Office. Matches consider available size, age, location and property characteristics. How comparisons work.

Value history

Down 5.4% in 2026 from 2025.

Assessor market value by tax year, with the change from the previous year listed
Tax yearAssessor market valueChangeChange %
2026$1,094,720−$62,020−5.4%
2025$1,156,740+$156,550+15.7%
2024$1,000,190−$279,810−21.9%
2023$1,280,000$00.0%
2022$1,280,000+$524,890+69.5%
2021$755,110−$27,510−3.5%
2020$782,620——
6-year total+$312,100+39.9%