Brown County property record for 409 Main Ave, De Pere, WI 54115
| Property Type | Mixed Use Commercial Office / Residential |
|---|---|
| Details | 3,570 sqft · built 1910 |
| Lot Size | 0.073 acres (3,180 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $240,000 (Jun 2025) |
| Tax Bill | $7,462 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | WD 886 |
| Primary APN | WD 886 |
|---|
| Stories | 459 Stories |
|---|---|
| Building Area | 3,570 sqft Total Area |
| Year Built | Built 1910 |
|---|---|
| Lot Area | 3,180 sqft (0.073 acres) |
| Old Parcel Number | WD886 |
|---|---|
| Street Address | 409 MAIN AVE |
| City | DE PERE |
| State | WI |
| Zip | 54115-2204 |
| Property Category | Commercial |
| Property Type | Commercial > Office > Mixed Use Commercial Office / Residential |
| Legal Description | 3,212 SQ FT UNDERWOOD ADDN E 1/3 OF LOT 2 |
| Legal Subdivision | UNDERWOOD ADD'N |
| Legal Lot Number | 2 |
| Jurisdiction | BROWN WI |
| Township / Civil Division | DE PERE |
| Census Block Group | 2 |
| Census Block | 2003 |
| Census Tract | 10201 |
409 Main Ave, a commercial property, is owned by two individuals who bought it in June 2025.
Source: Brown County records, as of February 27, 2026
| Owner of Record | 2 Individual Names on File |
|---|---|
| Co-owner | Co-owner on File |
| Mailing Address | 920 HELENA ST, DE PERE, WI 54115-1158 |
| Owner Type | Individual |
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 | 2 Names on Deed |
|---|---|
| Last Sale | Jun 9, 2025 · Amount on File |
| Deed Sale | Jun 9, 2025 · Amount on File |
| Deed Document Number | 2962870 |
| Prior Transfer Date | Sep 11, 2001 |
| Prior Transfer Doc | 1839323 |
| Record Updated | Jun 8, 2026 |
The 2025 property tax bill for 409 Main Ave was $7,462.
Source: Brown County assessment roll, as of January 1, 2025
| Type | Name |
|---|---|
| State | Wisconsin |
| County | Brown County |
| Municipality | De Pere City |
| Unified School District | West De Pere School District (PK - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2025 | $7,462.00 | $390,500 Land $23,900 Building $366,600 | $387,900 |
| 2023 | $5,185.00 | $240,000 (+15.89%) Land $23,900 Building $216,100 | $246,200 (+13.93%) |
| 2022 | $207,100 Land $23,900 Building $183,200 | $216,100 | |
| 2021 | $5,040.00 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 409 Main Ave in Zone X, an area of minimal flood risk.
Source: FEMA National Flood Hazard Layer, effective September 27, 2026 · OpenFEMA NFIP redacted claims and policies, as of September 2026
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
| Nearby Flood Policies | 1 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.
The area around 409 Main Ave 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 | DE PERE WATERWORKS SA 1 serves 25,660 people · EPA ID WI4050453 |
|---|---|
| Water Source | Purchased surface water from CENTRAL BROWN CO WATER AUTHORITY |
| Last State Inspection | Dec 2023 |
| Lead | Under 1 ppb (2023) action level 15 ppb |
| Water Quality | None last 10 years |
|---|---|
| Treatment and Procedure | None last 10 years |
| Monitoring and Reporting | None 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. The service area is an EPA estimate; the actual supplier may differ.
Source: FCC Broadband Data Collection, based on 70 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Spectrum Cable · Fiber in parts of the area | 1,000 / 1,000 |
| Verizon Fixed Wireless | 300 / 20 |
| Bertram Communications Fixed Wireless | 100 / 20 |
| AT&T Fixed Wireless · DSL · Fiber in parts of the area | 100 / 20 |
May also be available: Acrospire Networks, T-Mobile.
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