Winnebago County property record for 440 Sullivan St, Oshkosh, WI 54902
| Property Type | Commercial |
|---|---|
| Details | 38,916 sqft · built 1998 |
| Lot Size | 2.05 acres (89,520 sqft) |
| Owner | Company Name on Record |
| Last Sale | $2,432,000 (May 2016) |
| Tax Bill | $63,949 (2024) |
| Flood Zone | Zone X (minimal risk) |
| APN | 16-11230400 |
| Primary APN | 16-11230400 |
|---|---|
| Alternative APN |
|
| Units | 88 Units |
|---|---|
| Stories | 2 Stories |
| Building Area | 38,916 sqft Gross Area |
| Year Built | Built 1998 |
|---|---|
| Effective Year Built | Effective 1998 |
| Lot Area | 89,520 sqft |
| Heating System | Hot Water |
|---|
| Account Number | 916-11230400 |
|---|---|
| Street Address | 440 SULLIVAN ST |
| City | OSHKOSH |
| State | WI |
| Zip | 54902-4186 |
| Property Category | Commercial |
| Property Type | Commercial > Retail |
| Local Zoning Code | MR-20 |
| Legal Description | LOT 1 CSM 2874 DOC #869870 R OF D |
| Legal Subdivision | CERTIFIED SURV MAP #2874 |
| Legal Lot Number | 1 |
| Jurisdiction | WINNEBAGO WI |
| Township / Civil Division | OSHKOSH |
| Census Block Group | 1 |
| Census Block | 1001 |
| Census Tract | 1100 |
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 | Company Name on Record |
|---|---|
| Mailing Address | 12545 W BURLEIGH RD, 6, BROOKFIELD, WI 53005-3101 |
| Owner Type | Company |
| Vesting | Borrower in Default |
| Deed Names | Name on Deed |
|---|---|
| Last Sale | May 24, 2016 · Amount on Record |
| Deed Sale | May 24, 2016 · Amount on Record |
| Deed Document Number | 20161713672 |
| Record Updated | Sep 20, 2026 |
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 | $3,384,200 (+39.2%) Land $209,500 Building $3,174,700 | ||
| 2024 | $63,949.00 (-11.53%) | ||
| 2023 | $72,283.00 (+1.15%) | $2,431,200 (-) Land $201,400 Building $2,229,800 | $3,513,140 Land $291,028 Building $3,222,112 |
| 2022 | $71,463.00 | $2,431,200 Land $201,400 Building $2,229,800 |
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 · 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 |
| Nearby Flood Policies | 1 in force |
| Nearby Flood Claims | 1 (2008) |
| Most Recent Claim | Jun 2008 · Severe Storms, Tornadoes, And Flooding |
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: 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 66 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 |
| T-Mobile Fixed Wireless | 100 / 20 |
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