Winnebago County property record for 833 Frederick St, Oshkosh, WI 54901
| Property Type | Duplex |
|---|---|
| Details | 4 bd · 2 ba · 1,799 sqft · built 1920 |
| Lot Size | 0.149 acres (6,510 sqft) |
| Owner | Company Name on File |
| Last Sale | $109,000 (Jun 2015) |
| Tax Bill | $2,973 (2024) |
| Deeds & Mortgages | Apr 2022 Construction Loan Sep 2019 Line of Credit |
| Flood Zone | Zone X (minimal risk) |
| APN | 10-05890000 |
| Primary APN | 10-05890000 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 10 Rooms |
| Units | 2 Units |
| Stories | 2 Stories |
| Building Area | 1,799 sqft Living Area |
| Gross Area | 3,940 sqft |
| 1st Floor Area | 1,162 sqft |
| 2nd Floor Area | 1,116 sqft |
| Attic | Attic |
| Attic Area | 546 sqft |
| Basement Area | 1,116 sqft |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1920 |
|---|---|
| Effective Year Built | Effective 1920 |
| Architectural Style | Duplex Single |
| Exterior Material | Aluminum/Vinyl |
| Roof Material | Asphalt |
| Lot Area | 6,510 sqft (0.149 acres) |
| Lot Dimensions | 125 ft deep x 50 ft wide |
| Porch | Open Porch |
| Cooling System | None |
|---|---|
| Heating System | Forced Air with A/C |
| Heating Fuel | Gas |
| Sewer | Connected |
| Water Source | Commercial |
| Account Number | 810-0589-0000 |
|---|---|
| Street Address | 833 FREDERICK ST |
| City | OSHKOSH |
| State | WI |
| Zip | 54901-4410 |
| Property Category | Residential |
| Property Type | Residential > Multi-Unit > Duplex |
| Local Zoning Code | M2;HIGH DE |
| Legal Description | LOT 6 BLK 79 GOTT READ & EIGHMES ADDN |
| Legal Subdivision | BLK 79 GOTT READ & EIGHMES ADDN |
| Legal Block | 79 |
| Legal Lot Number | 6 |
| Jurisdiction | WINNEBAGO WI |
| Township / Civil Division | NEENAH |
| Census Block Group | 2 |
| Census Block | 2025 |
| Census Tract | 3300 |
833 Frederick St, a duplex, is owned by a company that bought it in June 2015.
Source: Winnebago County records, as of May 27, 2026
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Owner of Record | Company Name on File |
|---|---|
| Mailing Address | 1027 W 9TH AVE, OSHKOSH, WI 54902-6201 |
| Owner Type | Company |
| Date | Document |
|---|---|
| Apr 29, 2022 | Deed of Trust, Mortgage · Construction Mortgage FORTIFI BANK |
| Sep 20, 2019 | Deed of Trust, Mortgage · Line of Credit FORTIFI BK |
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Jun 26, 2015 · Amount on File |
| Deed Sale | Jun 26, 2015 · Amount on File |
| Prior Sale | Jun 9, 2014 · Amount on File |
| Deed Document Number | 20151690779 |
| Prior Transfer Date | Nov 30, 2006 |
| Prior Transfer Doc | 0001422033 |
| Record Updated | Oct 29, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | WINNEBAGO WI |
| Property Address | 205 SHERRY ST, NEENAH, WI 54956-2552 |
| Transaction Type | Mortgage |
| Record Updated | May 30, 2022 |
| Name | Verified Name |
|---|
| Document Number | 0001881205 |
|---|---|
| Date | Apr 29, 2022 |
| Instrument | 1881205 |
| Name | FORTIFI BANK |
|---|---|
| Type | Bank |
| Address | BERLIN, WI 54923 |
| Type | Construction Mortgage |
|---|---|
| Amount | Amount on Record |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | WINNEBAGO WI |
| Property Address | 205 SHERRY ST, NEENAH, WI 54956-2552 |
| Document Number | 0001799255 |
| Instrument Date | Sep 20, 2019 |
| Transaction Type | Mortgage |
| Record Updated | Oct 2, 2019 |
| Title Company | NOT AVAILABLE |
| Additional |
|
|---|
| Name | Verified Name |
|---|---|
| Relationship | Company |
| Address | 205 PLUMMER AVE NEENAH WI 549562034, NEENAH, WI 54956-2034 |
| Document Number | 0001799255 |
|---|---|
| Date | Sep 23, 2019 |
| Instrument | 1799255 |
| Name | FORTIFI BK |
|---|---|
| Address | BERLIN, WI 54923 |
| Type | Line of Credit |
|---|---|
| Amount | Amount on Record |
| Rate Type | Adjustable Rate |
|---|
Source: Winnebago County assessment roll, as of May 27, 2026
| Type | Name |
|---|---|
| State | Wisconsin |
| County | Winnebago County |
| Municipality | Neenah City |
| Unified School District | Neenah School District (PK - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2025 | $157,300 (-) Land $23,800 Building $133,500 | ||
| 2024 | $2,973.00 (-4.71%) | $157,300 (-19.74%) Land $23,800 Building $133,500 | |
| 2023 | $3,120.00 (+48.71%) | $196,000 (+94.06%) Land $21,500 Building $174,500 | $195,777 Land $21,476 Building $174,301 |
| 2022 | $2,098.00 | $101,000 Land $19,000 Building $82,000 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 833 Frederick St in Zone X, an area of minimal flood risk.
Source: FEMA National Flood Hazard Layer, effective March 26, 2019 · 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 833 Frederick 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 | NEENAH WATERWORKS serves 27,506 people · EPA ID WI4710348 |
|---|---|
| Water Source | Surface water |
| Last State Inspection | Jul 2025 |
| Lead | 10 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. The service area is an EPA estimate; the actual supplier may differ.
Source: FCC Broadband Data Collection, based on 492 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| TDS Telecom Fiber | 8,000 / 8,000 |
| AT&T Fiber · DSL | 5,000 / 5,000 |
| Spectrum Cable · Fiber in parts of the area | 1,000 / 1,000 |
| Verizon Fixed Wireless | 300 / 20 |
| T-Mobile Fixed Wireless | 100 / 20 |
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