DuPage County property record for 999 Devonshire Ave, Naperville, IL 60540 · Last verified August 2026
| Property Type | Duplex |
|---|---|
| Details | 3 bd · 2.5 ba · 1,682 sqft · built 1986 |
| Lot Size | 0.16 acres (6,970 sqft) |
| Owner | Individual Name on File |
| Last Sale | $206,000 (Sep 2001) |
| Tax Bill | $8,160 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 07-24-121-006 |
| Primary APN | 07-24-121-006 |
|---|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 7 Rooms |
| Stories | 2 Stories |
| Building Area | 1,682 sqft Living Area |
| 1st Floor Area | 841 sqft |
| 2nd Floor Area | 841 sqft |
| Year Built | Built 1986 |
|---|---|
| Effective Year Built | Effective 1986 |
| Architectural Style | Duplex Single |
| Construction Type | Frame |
| Lot Area | 6,970 sqft (0.16 acres) |
| Lot Dimensions | 13.4 ft deep x 5.5 ft wide |
| Parking Spaces | 2 Parking Spaces |
| Cooling System | Central |
|---|---|
| Heating System | Central |
| Street Address | 999 DEVONSHIRE AVE |
|---|---|
| City | NAPERVILLE |
| State | IL |
| Zip | 60540-6273 |
| Property Category | Residential |
| Property Type | Residential > Multi-Unit > Duplex |
| Legal Description | DEVONSHIRE UNIT 2 ALL |
| Legal Subdivision | DEVONSHIRE UNIT 2 |
| Legal Lot Number | 51 |
| Legal Unit | 2 |
| Jurisdiction | DU PAGE IL |
| Township / Civil Division | NAPERVILLE |
| Census Block Group | 2 |
| Census Block | 2000 |
| Census Tract | 846521 |
Source: DuPage County records · APN 07-24-121-006
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 | Individual Name on File |
|---|---|
| Mailing Address | 920 GATESHEAD DR, NAPERVILLE, IL 60565-5377 |
| Owner Type | Individual |
| Deed Names | Verified Name on Deed |
|---|---|
| Last Sale | Sep 24, 2001 · Amount on Record |
| Deed Sale | Sep 24, 2001 · Amount on Record |
| Prior Sale | Apr 01, 1996 · Amount on Record |
| Deed Document Number | 2001202758 |
| Last Transfer Date | Jul 29, 2009 |
| Transfer Doc | 0000124281 |
| 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 | Naperville 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 | $8,160.00 (+11.63%) | $139,956 (+23.7%) Land $44,744 Building $95,212 | $419,868 (+23.7%) Land $134,232 Building $285,636 |
| 2022 | $7,310.00 | $113,140 Land $35,900 Building $77,240 | $339,420 Land $107,700 Building $231,720 |
Source: FEMA National Flood Hazard Layer, DuPage County (17043C), updated September 1, 2025 · FEMA OpenFEMA NFIP redacted claims and policies, census block group 170438465212, 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 |
| Community Rating System | Class 5 (25% premium discount) |
| Nearby Flood Policies | 1 in force |
| 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 329 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 | 1,000 / 75 |
| 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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