DuPage County property record for 641 Flock Ave, Naperville, IL 60565 · Last verified August 2026
| Property Type | Single Family Home |
|---|---|
| Details | 2.5 ba · 2,744 sqft · built 1986 |
| Lot Size | 0.28 acres (12,197 sqft) |
| Owner | 2 Individual Names on File |
| Tax Bill | $11,631 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 08-31-106-014 |
| Primary APN | 08-31-106-014 |
|---|
| Full Baths | 2.5 Baths |
|---|---|
| Half Baths | 1 Half Bath |
| Stories | 2 Stories |
| Building Area | 2,744 sqft Living Area |
| Gross Area | 3,922 sqft |
| 1st Floor Area | 1,477 sqft |
| 2nd Floor Area | 1,267 sqft |
| Basement Area | 1,178 sqft |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1986 |
|---|---|
| Effective Year Built | Effective 1986 |
| Exterior Material | Wood Siding |
| Lot Area | 12,197 sqft (0.28 acres) |
| Garage Area | 440 sqft |
| Parking Spaces | 2 Parking Spaces |
| Heating System | Electric |
|---|
| Street Address | 641 FLOCK AVE |
|---|---|
| City | NAPERVILLE |
| State | IL |
| Zip | 60565-1297 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | WINDING CREEK ESTATES UNIT 3 ALL |
| Legal Subdivision | WINDING CREEK ESTATES |
| Legal Lot Number | 336 |
| Legal Unit | 3 |
| Jurisdiction | DU PAGE IL |
| Township / Civil Division | LISLE |
| Census Block Group | 4 |
| Census Block | 4003 |
| Census Tract | 846207 |
Source: DuPage County records · APN 08-31-106-014
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 | 641 FLOCK AVE, NAPERVILLE, IL 60565-1297 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Deed Names | 2 Verified Names on Deed |
|---|---|
| Record Updated | 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 | $11,631.00 (+16.38%) | $215,310 (+30.15%) Land $85,287 Building $130,023 | $645,930 (+30.15%) Land $255,861 Building $390,069 |
| 2022 | $9,994.00 Homeowner's exemption Senior Citizen's exemption | $165,430 Land $65,530 Building $99,900 | $496,290 Land $196,590 Building $299,700 |
Source: FEMA National Flood Hazard Layer, DuPage County (17043C), updated September 1, 2025 · FEMA OpenFEMA NFIP redacted claims and policies, census block group 170438462074, refreshed September 2026 · USDA Forest Service Wildfire Risk to Communities, 2nd edition (2024), fuels as of 2020 · Last verified October 2026
| FEMA Flood Zone | Zone X |
|---|---|
| Special Flood Hazard Area | No |
| Flood Hazard | Minimal |
| 500-Year Floodplain | No |
| Nearest Special Flood Hazard Area | Zone AE, within 500 ft |
| Nearby Flood Claims | 1 (2017) |
| Claims Outside the SFHA | 1 of 1 |
| Most Recent Claim | Oct 2017, rainfall accumulation |
| Wildfire Risk | Not rated no burnable land in reach |
|---|---|
| Wildfire Likelihood | Negligible |
| Exposure | None beyond ember reach |
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.
Source: FCC Broadband Data Collection, availability as of December 31, 2025 · Published October 2026 · based on 491 locations within about half a mile of this property
| Provider | Technology | Download / Upload (Mbps) |
|---|---|---|
| Xfinity | Cable | 2,000 / 250 |
| Radiate Holdings | Cable | 1,500 / 50 |
| Verizon | Fixed Wireless | 300 / 20 |
| AT&T | Fixed Wireless | 100 / 20 |
| T-Mobile USA | Fixed Wireless | 100 / 20 |
| AT&T | DSL | 100 / 20 |
Availability varies by address; speeds are provider-advertised maximums, not measured.
5G and 4G LTE
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