Waukesha County property record for 917 Oak St, Delafield, WI 53018
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 2 ba · built 1984 |
| Lot Size | 0.4 acres (17,424 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $220,000 (Jun 2000) |
| Tax Bill | $4,918 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | DELC-0787-036-001 |
| Primary APN | DELC-0787-036-001 |
|---|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 2 Baths |
| 1st Floor Area | 1,202 sqft |
| Basement Area | 1,170 sqft |
| Family Room | Family Room |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1984 |
|---|---|
| Effective Year Built | Effective 1984 |
| Lot Area | 17,424 sqft (0.4 acres) |
| Lot Dimensions | 172 ft deep x 100 ft wide |
| Garage Type | Attached |
| Garage Area | 480 sqft |
| Parking Spaces | 2 Parking Spaces |
| Deck Area | Deck Area |
| Sewer | Connected |
|---|---|
| Water Source | Well |
| Street Address | 917 OAK ST |
|---|---|
| City | DELAFIELD |
| State | WI |
| Zip | 53018-1646 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | LOT 11 NAGAWICKA LAKE HOMESITES PT SW1/4 SEC 17 T7N R18E DOC# 2788150 |
| Legal Range | 18E |
| Legal Township | 7N |
| Legal Section | 17 |
| Legal Subdivision | NAGAWICKA LAKE HOMESITES |
| Legal Lot Number | 11 |
| Jurisdiction | WAUKESHA WI |
| Township / Civil Division | DELAFIELD |
| Census Block Group | 1 |
| Census Block | 1005 |
| Census Tract | 203704 |
Source: Waukesha County records · APN DELC-0787-036-001
Assessment roll updated June 23, 2026 · Last verified July 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 File |
|---|---|
| Mailing Address | PO BOX 1203, BUENA VISTA, CO 81211-1203 |
| Owner Type | Individual |
| Deed Names | 2 Verified Names on Deed |
|---|---|
| Last Sale | Jun 13, 2000 · Amount on Record |
| Deed Sale | Jun 13, 2000 · Amount on Record |
| Prior Sale | Oct 23, 1998 · Amount on Record |
| Deed Document Number | 20002567602 |
| Record Updated | Sep 20, 2026 |
Source: Waukesha County records · Assessment roll updated June 23, 2026 · Last verified July 2026
| Type | Name |
|---|---|
| State | Wisconsin |
| County | Waukesha County |
| Municipality | Delafield City |
| Unified School District | Kettle Moraine School District (PK - 12) |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2025 | $4,918.00 (+1.32%) | $452,600 (+34.7%) Land $130,800 Building $321,800 | $469,900 (+6.58%) |
| 2024 | $4,854.00 (+2.38%) | $336,000 (-) Land $99,100 Building $236,900 | $440,900 (+5.33%) |
| 2023 | $4,741.00 | $336,000 Land $99,100 Building $236,900 | $418,600 |
Source: FEMA National Flood Hazard Layer as of October 19, 2025 · FEMA NFIP claims and policies as of September 2026 · USDA Forest Service Wildfire Risk to Communities as of 2024 · Last verified October 2026
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
| Nearby Flood Claims | 5 (1993–2011) |
| Claims Outside the SFHA | 4 of 5 |
| Most Recent Claim | May 2011 · other causes |
| Wildfire Risk | Low lower than 80% of the US · above 57% of Wisconsin |
|---|---|
| Wildfire Likelihood | 0.01% annual chance |
| Exposure | None beyond ember reach |
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: FCC Broadband Data Collection as of December 31, 2025 · Last verified October 2026
| Provider | Max Down / Up (Mbps) |
|---|---|
| Spectrum Cable | 1,000 / 1,000 |
| Verizon Fixed Wireless | 300 / 20 |
| T-Mobile USA Fixed Wireless | 100 / 20 |
May also be available: Bertram Communications.
Based on FCC filings for 133 locations within half a mile of this property.
5G (outdoors only) and 4G LTE
Source: EPA Safe Drinking Water Information System as of 2026 Q3 · EPA water system boundaries as of March 2026 · Last verified October 2026
| Water System | DELAFIELD SQUARE private · serves 587 people |
|---|---|
| Water Source | Groundwater |
| Last State Inspection | Feb 2024 |
| Lead | 1 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 as reported to EPA, 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. This system sells water to local utilities; the supplier billing this address may be one of them. The full violation and enforcement history is in the system's EPA record.
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