Winnebago County property record for 813 Prospect Ave, Oshkosh, WI 54901
| Property Type | Single Family Home |
|---|---|
| Details | 5 bd · 2 ba · 1,709 sqft · built 1920 |
| Lot Size | 0.153 acres (6,650 sqft) |
| Owner | 2 Individual Names on Record |
| Last Sale | $69,900 (Aug 2025) |
| Tax Bill | $3,606 (2024) |
| Deeds & Mortgages | Apr 2021 Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 05-03920000 |
| Primary APN | 05-03920000 |
|---|---|
| Alternative APN |
|
| Bedrooms | 5 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 7 Rooms |
| Stories | 2 Stories |
| Building Area | 1,709 sqft Living Area |
| Year Built | Built 1920 |
|---|---|
| Effective Year Built | Effective 1920 |
| Exterior Material | Aluminum/Vinyl |
| Lot Area | 6,650 sqft (0.153 acres) |
| Lot Dimensions | 133 ft deep x 50 ft wide |
| Heating System | HVAC |
|---|---|
| Heating Fuel | Gas |
| Account Number | 905-03920000 |
|---|---|
| Street Address | 813 PROSPECT AVE |
| City | OSHKOSH |
| State | WI |
| Zip | 54901-3615 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R2 |
| Legal Description | W 50 FT OF LOT 138 CITY REPLAT #1 |
| Legal Subdivision | CITYS REPLAT NO 1 |
| Legal Lot Number | 138 |
| Jurisdiction | WINNEBAGO WI |
| Township / Civil Division | OSHKOSH |
| Census Block Group | 2 |
| Census Block | 2004 |
| Census Tract | 700 |
Source: Winnebago County records, as of May 27, 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 Record |
|---|---|
| Mailing Address | 1030 S WEBSTER AVE, OMRO, WI 54963-1602 |
| Owner Type | Individual |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Aug 15, 2025 · Amount on Record |
| Deed Sale | Aug 15, 2025 · Amount on Record |
| Prior Sale | Aug 9, 2019 · Amount on Record |
| Deed Document Number | 20251950483 |
| Record Updated | Sep 20, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | WINNEBAGO WI |
| Property Address | 813 PROSPECT AVE, OSHKOSH, WI 54901-3615 |
| Transaction Type | Mortgage |
| Record Updated | Jun 26, 2023 |
| Name | Verified Name |
|---|
| Document Number | 0001847713 |
|---|---|
| Date | Apr 6, 2021 |
| Instrument | 1847713 |
| Name | FORTIFI BANK |
|---|---|
| Type | Bank |
| Address | BERLIN, WI 54923 |
| Type | Commercial Mortgage |
|---|---|
| Amount | Amount Recorded |
Source: Winnebago County assessment roll, as of May 27, 2026
| Type | Name |
|---|---|
| State | Wisconsin |
| County | Winnebago County |
| Municipality | Oshkosh City |
| Unified School District | Oshkosh Area School District (PK - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2025 | $192,600 (-) Land $27,600 Building $165,000 | ||
| 2024 | $3,606.00 (+0.78%) | $192,600 (+58.13%) Land $27,600 Building $165,000 | |
| 2023 | $3,578.00 (+1.1%) | $121,800 (-) Land $18,400 Building $103,400 | $176,003 Land $26,588 Building $149,415 |
| 2022 | $3,539.00 | $121,800 Land $18,400 Building $103,400 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
Source: FEMA National Flood Hazard Layer, effective March 26, 2019
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
Values are read at the parcel center point; lenders make the official flood determination.
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 | OSHKOSH WATERWORKS serves 63,000 people · EPA ID WI4710457 |
|---|---|
| Water Source | Surface water |
| Last State Inspection | Apr 2025 |
| Lead | 6 ppb (2025) 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. This system sells water to local utilities; the supplier billing this address may be one of them.
Source: FCC Broadband Data Collection, based on 478 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| TDS Telecom Fiber | 8,000 / 8,000 |
| 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 |
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