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9S420 Allison Ct, Willowbrook, IL 60527 Property Records

DuPage County property record for 9S420 Allison Ct, Willowbrook, IL 60527

Property Summary

Property TypeSingle Family Home
Details2.5 ba · 2,000 sqft · built 1978
Lot Size0.49 acres (21,344 sqft)
OwnerCompany Name on Record
Last Sale$430,000 (Aug 2022)
Tax Bill$7,435 (2025)
Deeds & MortgagesAug 2022 Sale
Flood ZoneZone X (minimal risk)
APN09-35-305-027

Property Details

APN / Parcel Number

Primary APN09-35-305-027

Interior

Full Baths2.5 Baths
Half Baths1 Half Bath
Stories1 Story
Building Area2,000 sqft Living Area
Gross Area2,928 sqft
1st Floor Area2,000 sqft
Basement Area928 sqft
Fireplaces1 Fireplace
FireplaceFireplace

Exterior

Year BuiltBuilt 1978
Effective Year BuiltEffective 1978
Exterior MaterialBrick
Construction TypeFrame
Lot Area21,344 sqft (0.49 acres)
Garage Area528 sqft
Parking Spaces2 Parking Spaces

Location & Zoning

Street Address9S420 ALLISON CT
CityHINSDALE
StateIL
Zip60521
Property CategoryResidential
Property TypeResidential > Single Family > Home
Local Zoning CodeR
Legal DescriptionBEECHEN & DILLS CLARENDON HEIGHTS SOUTH ALL
Legal SubdivisionBEECHEN & DILLS CLARENDON HEIGHTS
Legal Lot Number16
JurisdictionDU PAGE IL
Township / Civil DivisionDOWNERS GROVE
Census Block Group1
Census Block1013
Census Tract845805

Owner

Source: DuPage County records, as of August 17, 2026

Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.

Owner of RecordCompany Name on Record
Mailing Address9S420 ALLISON CT, WILLOWBROOK, IL 60527-7094
OccupancyOwner Occupied
Owner TypeCompany
VestingTrust

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed NamesName on Deed
Last SaleAug 16, 2022 · Amount on Record
Deed SaleAug 16, 2022 · Amount on Record
Prior SaleJun 30, 1997 · Amount on Record
Deed Document Number202277144
Record UpdatedSep 20, 2026

August 2022: Warranty Deed, Transfer

Document TypeWarranty Deed
JurisdictionDU PAGE IL
Recording DateAug 16, 2022
Property Address9S420 ALLISON CT, WILLOWBROOK, IL 60527-7094
Document Number0000077144
Map ReferenceDOC R77-28301
Instrument DateJul 5, 2022
InstrumentR2022-077144
Transaction TypeTransfer
Record UpdatedAug 31, 2022
Title CompanyOLD REPUBLIC TITLE

Transaction

AmountAmount Recorded
Tax$430.00
Amount AccuracyRounded by County
Additional
  • Arm's Length

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
Address9S420 ALLISON CT, WILLOWBROOK, IL 60527-7094

Tax Assessment & Valuation

Source: DuPage County assessment roll, as of August 17, 2026

Property Jurisdictions

TypeName
StateIllinois
CountyDuPage County
County SubdivisionDowners Grove Township
Elementary School DistrictCass School District 63 (PK - 08)
Secondary School DistrictHinsdale Township High School District 86 (09 - 12)

Tax Bill & Assessment History

YearTax BillAssessed ValueAssessed Market Value
2025$7,435.00 (+10.43%)$138,654 (+21.01%) Land $37,630 Building $101,024$415,962 (+21.01%) Land $112,890 Building $303,072
2022$6,733.00 Homeowner's exemption$114,580 Land $31,090 Building $83,490$343,740 Land $93,270 Building $250,470

Assessed value and assessed market value are set for property tax purposes, not market price estimates; both are a fraction of this property's market value.

Flood

Source: FEMA National Flood Hazard Layer, effective September 1, 2025 · OpenFEMA NFIP redacted claims and policies, as of September 2026

FEMA Flood ZoneZone X
minimal risk
Flood Insurance RequirementNot required
lenders may require it
Community Rating SystemClass 5 (25% premium discount)
Nearby Flood Policies5 in force

Values are read at the parcel center point; flood claims are located to the census block group, not this parcel; lenders make the official flood determination.

Wildfire

Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024

Wildfire RiskNot rated
no burnable land within ember reach

Values cover an area roughly 900 ft across, not the parcel itself; insurers use their own ratings.

Internet Providers

Source: FCC Broadband Data Collection, based on 186 locations within half a mile, as of December 31, 2025

ProviderMax Down / Up (Mbps)
Xfinity
Cable		2,000 / 250
Verizon
Fixed Wireless		300 / 20
T-Mobile
Fixed Wireless		100 / 20
AT&T
Fixed Wireless · DSL · Fiber in parts of the area		100 / 20

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