DuPage County property record for 525 S Washington St, Naperville, IL 60540
| Property Type | Commercial |
|---|---|
| Details | 4,042 sqft · built 1983 |
| Lot Size | 0.28 acres (12,197 sqft) |
| Owner | Company Name on File |
| Last Sale | $1,605,000 (Jul 2006) |
| Tax Bill | $18,829 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 07-24-204-014 |
| Primary APN | 07-24-204-014 |
|---|
| Units | 28 Units |
|---|---|
| Building Area | 4,042 sqft Gross Area |
| 1st Floor Area | 2,075 sqft |
| 2nd Floor Area | 1,694 sqft |
| Basement Area | 273 sqft |
| Year Built | Built 1983 |
|---|---|
| Effective Year Built | Effective 1983 |
| Construction Type | Frame |
| Lot Area | 12,197 sqft (0.28 acres) |
| Lot Dimensions | 12.7 ft deep x 10 ft wide |
| Street Address | 525 S WASHINGTON ST |
|---|---|
| City | NAPERVILLE |
| State | IL |
| Zip | 60540-6749 |
| Property Category | Commercial |
| Property Type | Commercial > Retail |
| Local Zoning Code | R |
| Legal Description | MARTINS 2ND ADD N 100 FT |
| Legal Subdivision | MARTINS 2ND ADD |
| Legal Block | 1 |
| Legal Lot Number | 2 |
| Legal Unit | 1 |
| Jurisdiction | DU PAGE IL |
| Township / Civil Division | NAPERVILLE |
| Census Block Group | 2 |
| Census Block | 2032 |
| Census Tract | 846504 |
525 S Washington St, a commercial property, is owned by a company that bought it in July 2006.
Source: DuPage County records, as of August 17, 2026
| Owner of Record | Company Name on File |
|---|---|
| Mailing Address | 535 S WASHINGTON ST, 9, NAPERVILLE, IL 60540-6795 |
| Owner Type | Company |
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Jul 28, 2006 · Amount on File |
| Deed Sale | Jul 28, 2006 · Amount on File |
| Deed Document Number | 2006145926 |
| Record Updated | Sep 20, 2026 |
The 2025 property tax bill for 525 S Washington St was $18,829.
Source: DuPage County assessment roll, as of August 17, 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) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2025 | $18,829.00 | $322,936 Land $150,624 Building $172,312 | $968,808 Land $451,872 Building $516,936 |
| 2022 | $16,281.00 | $251,990 Land $148,040 Building $103,950 | $755,970 Land $444,120 Building $311,850 |
Assessed value is set for property tax purposes, not a market price estimate; it is a fraction of this property's market value.
FEMA maps place 525 S Washington St in Zone X, an area of minimal flood risk, within 500 ft of a high-risk flood zone.
Source: FEMA National Flood Hazard Layer, effective September 1, 2025 · OpenFEMA NFIP redacted claims and policies, as of September 2026
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Nearest Special Flood Hazard Area | Zone AE, within 500 ft |
| Flood Insurance Requirement | Not required lenders may require it |
| Flood Insurance Cost | Premium on File median of 13 policies |
| Community Rating System | Class 10 (0% premium discount) |
| Nearby Flood Policies | 13 in force |
| Nearby Flood Claims | 22 (1996–2025) |
| Claims Outside the SFHA | 6 of 22 |
| Most Recent Claim | Apr 2025 · other causes |
| Claims by Event |
|
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.
The area around 525 S Washington St has no burnable land within ember reach, so its wildfire risk is not rated.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Not rated no burnable land within ember reach |
|---|
Values cover an area roughly 900 ft across, not the parcel itself; insurers use their own ratings.
Source: EPA Safe Drinking Water Information System, as of September 2026
| Water System | NAPERVILLE serves 156,406 people · EPA ID IL0434670 |
|---|---|
| Water Source | Purchased surface water from DU PAGE WATER COMMISSION |
| Last State Inspection | Sep 2025 |
| Lead | 6 ppb (2026) action level 15 ppb |
| Water Quality | None last 10 years |
|---|---|
| Treatment and Procedure | None last 10 years |
| Monitoring and Reporting | 15 last 3 years |
Results are for the whole water system, not water tested at this address; lead at the tap also depends on the building's own pipes.
Source: FCC Broadband Data Collection, based on 317 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Xfinity Cable | 2,000 / 250 |
| Astound Broadband Cable · Fiber in parts of the area | 1,500 / 50 |
| Verizon Fixed Wireless | 1,000 / 75 |
| AT&T Fixed Wireless · DSL | 100 / 20 |
| T-Mobile Fixed Wireless | 100 / 20 |
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