Waukesha County property record for 520 Frederick Ct, Oconomowoc, WI 53066
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 2 ba · 1,824 sqft |
| Lot Size | 2.96 acres (129,027 sqft) |
| Owner | Trust Name on File |
| Last Sale | $182,000 (Jan 2005) |
| Tax Bill | $3,515 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | OCOC-0590-386-008 |
| Primary APN | OCOC-0590-386-008 |
|---|
| Architectural Style | Condo/Apartment |
|---|---|
| Lot Area | 129,027 sqft |
| Street Address | 520 FREDERICK CT |
|---|---|
| City | OCONOMOWOC |
| State | WI |
| Zip | 53066-5800 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | UNIT 520 SHELDON KNOLL A CONDOMINIUM LOTS 1-8 SHELDON KNOLL PT NW1/4 SEC 4 T7N R17E DOC# 4061926 |
| Legal Range | 17E |
| Legal Township | 7N |
| Legal Section | 4 |
| Legal Subdivision | SHELDON KNOLL CONDOMINIUM |
| Legal Lot Number | 520 |
| Jurisdiction | WAUKESHA WI |
| Township / Civil Division | OCONOMOWOC |
| Census Block Group | 1 |
| Census Block | 1004 |
| Census Tract | 204302 |
520 Frederick Ct is owner-occupied and held in a trust since January 2014.
Source: Waukesha County records, as of June 23, 2026
| Owner of Record | Trust Name on File |
|---|---|
| Mailing Address | 520 FREDERICK CT, OCONOMOWOC, WI 53066-5800 |
| Occupancy | Owner Occupied |
| Owner Type | Company |
| Vesting | Trust, Revocable Trust |
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 | Jan 17, 2005 · Amount on File |
| Deed Sale | Jan 17, 2005 · Amount on File |
| Prior Sale | Dec 7, 2004 · Amount on File |
| Deed Document Number | 20053242446 |
| Last Transfer Date | Jan 7, 2014 |
| Transfer Doc | 0004061926 |
| Record Updated | Oct 29, 2026 |
The 2025 property tax bill for 520 Frederick Ct was $3,515.
Source: Waukesha County assessment roll, as of June 23, 2026
| Type | Name |
|---|---|
| State | Wisconsin |
| County | Waukesha County |
| Municipality | Oconomowoc City |
| Unified School District | Oconomowoc Area School District (PK - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2025 | $3,515.00 | $339,300 Land $34,000 Building $305,300 | $344,300 |
| 2023 | $3,071.00 Homeowner's exemption | $276,000 Land $34,000 Building $242,000 | $288,000 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 520 Frederick Ct in Zone X, an area of minimal flood risk.
Source: FEMA National Flood Hazard Layer, effective October 19, 2025 · 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 | 2 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.
Wildfire risk around 520 Frederick Ct is low, with less than a 0.01% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Low lower than 97% of the US · lower than 92% of Wisconsin |
|---|---|
| Wildfire Likelihood | Under 0.01% annual chance |
| Exposure | Direct burnable vegetation |
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 | OCONOMOWOC WATERWORKS serves 15,805 people · EPA ID WI2680227 |
|---|---|
| Water Source | Groundwater |
| Last State Inspection | Apr 2025 |
| Lead | 7 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 228 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Spectrum Cable | 1,000 / 35 |
| Verizon Fixed Wireless | 300 / 20 |
| Bertram Communications Fixed Wireless | 100 / 20 |
| AT&T DSL | 100 / 20 |
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