Waukesha County property record for 643 Oldfield Ave, Mukwonago, WI 53149
| Property Type | Single Family Home |
|---|---|
| Lot Size | 0.34 acres (14,810 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $395,000 (May 2020) |
| Tax Bill | $5,943 (2025) |
| Deeds & Mortgages | Jan 2026 Line of Credit Nov 2019 Mortgage + 2 more |
| Flood Zone | Zone X (minimal risk) |
| APN | MUKV-1960-068 |
| Primary APN | MUKV-1960-068 |
|---|
| 1st Floor Area | 432 sqft |
|---|
| Lot Area | 14,810 sqft (0.34 acres) |
|---|
| Street Address | 643 OLDFIELD AVE |
|---|---|
| City | MUKWONAGO |
| State | WI |
| Zip | 53149-8938 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | LOT 68 FAIRWINDS & UNDIV INTEREST IN OUTLOTS 2-5 BEING PT SE1/4, SW1/4, NW1/4 & NE1/4 OF SE1/4 SEC 22 & SW1/4 OF SW1/4 SEC 23 T5N R18E |
| Legal Range | 18E |
| Legal Township | 5N |
| Legal Section | 23 |
| Legal Subdivision | FAIRWINDS |
| Legal Lot Number | 68 |
| Jurisdiction | WAUKESHA WI |
| Township / Civil Division | MUKWONAGO |
| Census Block Group | 1 |
| Census Block | 1008 |
| Census Tract | 203901 |
643 Oldfield Ave is owned and occupied by two individuals who bought it in May 2020.
Source: Waukesha County records, as of June 23, 2026
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 643 OLDFIELD AVE, MUKWONAGO, WI 53149-8938 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Date | Document |
|---|---|
| Jan 5, 2026 | Deed of Trust, Mortgage · Line of Credit JOHNSON BANK |
| Nov 12, 2019 | Deed of Trust, Mortgage · Conventional Mortgage WISCONSIN MORTGAGE CORP |
| May 4, 2020 | Warranty Deed, Transfer · Conventional with PMI EDUCATORS CU |
| Oct 10, 2017 | Warranty Deed, Transfer · FHA Mortgage WISCONSIN MORTGAGE CORP |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | May 4, 2020 · Amount on File |
| Deed Sale | May 4, 2020 · Amount on File |
| Prior Sale | Oct 10, 2017 · Amount on File |
| Deed Document Number | 20204471485 |
| Record Updated | Sep 20, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | WAUKESHA WI |
| Property Address | 643 OLDFIELD AVE, MUKWONAGO, WI 53149-8938 |
| Transaction Type | Mortgage |
| Record Updated | Jan 26, 2026 |
| Name | Verified Name |
|---|
| Document Number | 0004854800 |
|---|---|
| Date | Jan 5, 2026 |
| Instrument | 4854800 |
| Name | JOHNSON BANK |
|---|---|
| Type | Bank |
| Address | MUKWONAGO, WI 53149 |
| Type | Line of Credit |
|---|---|
| Amount | Amount on Record |
| Rate Type | Adjustable Rate |
|---|---|
| Change Frequency | Monthly |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | WAUKESHA WI |
| Property Address | 643 OLDFIELD AVE, MUKWONAGO, WI 53149-8938 |
| Transaction Type | Mortgage |
| Record Updated | Feb 5, 2021 |
| Name | Verified Name |
|---|
| Document Number | 0004434936 |
|---|---|
| Date | Nov 12, 2019 |
| Instrument | 4434936 |
| Name | WISCONSIN MORTGAGE CORP |
|---|---|
| Type | Mortgage Company |
| Address | BROOKFIELD, WI 53008 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 361 Months |
| Due | Dec 1, 2049 |
| Document Type | Warranty Deed |
|---|---|
| Jurisdiction | WAUKESHA WI |
| Recording Date | May 4, 2020 |
| Property Address | 643 OLDFIELD AVE, MUKWONAGO, WI 53149-8938 |
| Document Number | 0004471485 |
| Instrument Date | Apr 17, 2020 |
| Instrument | 4471485 |
| Transaction Type | Transfer |
| Record Updated | Jul 2, 2020 |
| Title Company | FOCUS TITLE |
| Amount | Amount on Record |
|---|---|
| Downpayment | Downpayment on Record |
| Loan-to-Value (LTV) | LTV on Record |
| Tax | $1,185.00 |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Husband and Wife |
| Address | 643 OLDFIELD AVE MUKWONAGO WI 531498938, MUKWONAGO, WI 53149-8938 |
| Document Number | 4471486 |
|---|---|
| Date | May 4, 2020 |
| Instrument | 4471486 |
| Name | EDUCATORS CU |
|---|---|
| Type | Credit Union |
| Address | JANESVILLE, WI 53545 |
| Type | Conventional with PMI |
|---|---|
| Amount | Amount on Record |
| Term | 360 Months |
| Due | May 3, 2050 |
| Document Type | Warranty Deed |
|---|---|
| Jurisdiction | WAUKESHA WI |
| Recording Date | Oct 10, 2017 |
| Property Address | 643 OLDFIELD AVE, MUKWONAGO, WI 53149-8938 |
| Document Number | 0004304485 |
| Map Reference | DOC3202178 |
| Instrument Date | Oct 3, 2017 |
| Instrument | 4304485 |
| Transaction Type | Transfer |
| Record Updated | Jun 17, 2021 |
| Amount | Amount on Record |
|---|---|
| Downpayment | Downpayment on Record |
| Loan-to-Value (LTV) | LTV on Record |
| Tax | $1,030.50 |
| Amount Accuracy | Rounded by County |
| Additional |
|
| Name | Verified Name |
|---|---|
| Address | 00000 |
| Name | Verified Name |
|---|---|
| Address | 643 OLDFIELD AVE, MUKWONAGO, WI 53149-8938 |
| Document Number | 0004304486 |
|---|---|
| Date | Oct 10, 2017 |
| Instrument | 4304486 |
| Name | WISCONSIN MORTGAGE CORP |
|---|---|
| Type | Mortgage Company |
| Type | FHA Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 361 Months |
| Due | Nov 1, 2047 |
The 2025 property tax bill for 643 Oldfield Ave was $5,943.
Source: Waukesha County assessment roll, as of June 23, 2026
| Type | Name |
|---|---|
| State | Wisconsin |
| County | Waukesha County |
| Municipality | Mukwonago Village |
| Unified School District | Mukwonago School District (PK - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2025 | $5,943.00 | $500,500 Land $108,000 Building $392,500 | $529,900 |
| 2023 | $5,996.00 Homeowner's exemption | $350,000 Land $71,000 Building $279,000 | $495,700 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 643 Oldfield Ave 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 | 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.
Wildfire risk around 643 Oldfield Ave is low, with 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 80% of the US · above 57% of Wisconsin |
|---|---|
| Wildfire Likelihood | 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 | MUKWONAGO WATERWORKS serves 8,190 people · EPA ID WI2680209 |
|---|---|
| Water Source | Groundwater |
| Last State Inspection | Mar 2024 |
| Lead | 3 ppb (2023) action level 15 ppb |
| Water Quality | None last 10 years |
|---|---|
| Treatment and Procedure | None last 10 years |
| Monitoring and Reporting | 2 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 71 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Spectrum Cable | 1,000 / 1,000 |
| Verizon Fixed Wireless | 300 / 20 |
| T-Mobile Fixed Wireless | 100 / 20 |
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