421 Flock Ave, Naperville, IL 60565 Property Records

DuPage County property record for 421 Flock Ave, Naperville, IL 60565 · Last verified August 2026

Property Highlights

Property Type	Residential > Single Family > Home
Bathrooms	2.5 Baths
Year Built	Built 1986
Square Footage	2,866 sqft Living Area
Lot Size	10,019 sqft (0.23 acres)
Garage	420 sqft
Occupancy	Owner Occupied
Tax Bill	$12,198.00 (2025)

Primary APN	`08-30-307-021`

Street Address	421 FLOCK AVE
City	NAPERVILLE
State	IL
Zip	60565-6150
Property Usage	Residential Property Usage
Type	Residential > Single Family > Home
Legal Description	WINDING CREEK ESTATES UNIT 2 ALL
Legal Subdivision	WINDING CREEK ESTATES
Legal Lot Number	134
Legal Unit	2
Jurisdiction	DU PAGE IL
Minor Civil Division	LISLE
Census Blockgroup	3
Census Block	3004
Census Tract	846207

Source: DuPage County records · APN 08-30-307-021

Assessment roll updated August 17, 2026 · Last verified August 2026

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

Owner of Record	2 Individual Names on File
Mailing Address	421 FLOCK AVE, NAPERVILLE, IL 60565-6150
Occupancy	Owner Occupied
Owner Type	Owner is an Individual, Couple or Unincorporated Entity

Deed Names	2 Verified Names on Deed
Record Refreshed	Sep 20, 2026

Source: DuPage County records · Assessment roll updated August 17, 2026 · Last verified August 2026

Type	Name
State	Illinois
County	DuPage County
County Subdivision	Lisle Township
Municipality	Naperville City
Unified School District	Naperville Community Unit District 203 (PK - 12)

Assessed value and assessed market value are set for property tax purposes and are not market price estimates.

Year	Tax Bill	Assessed Value	Assessed Market Value
2025	$12,198.00 (+17.27%)	$217,011 (+30.15%) Land $85,287 Building $131,724	$651,033 (+30.15%) Land $255,861 Building $395,172
2022	$10,402.00 Homeowner's exemption	$166,740 Land $65,530 Building $101,210	$500,220 Land $196,590 Building $303,630