Waukesha County property record for 315 Westside Ave, Mukwonago, WI 53149
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 1 ba · built 1945 |
| Lot Size | 0.26 acres (11,326 sqft) |
| Owner | Individual Name on File |
| Tax Bill | $3,522 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | MUKV-1974-930 |
| Primary APN | MUKV-1974-930 |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 1 Bath |
| Total Rooms | 6 Rooms |
| Stories | 1 Story |
| 1st Floor Area | 432 sqft |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1945 |
|---|---|
| Effective Year Built | Effective 1945 |
| Architectural Style | Cottage |
| Exterior Material | Other |
| Lot Area | 11,326 sqft (0.26 acres) |
| Cooling System | None |
|---|---|
| Heating System | Forced Air with A/C |
| Street Address | 315 WESTSIDE AVE |
|---|---|
| City | MUKWONAGO |
| State | WI |
| Zip | 53149-1339 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | PT NW1/4 SEC 26 T5N R18E COM CTR SEC W 748.44 FT N 313.50 FT 165 FT N 66 FT E 176.22 FT S9 W 66.66 FT TO BGN R884/22 |
| Legal Range | 18E |
| Legal Township | 5N |
| Legal Section | 26 |
| Legal Block | 18 |
| Legal Lot Number | 5 |
| Jurisdiction | WAUKESHA WI |
| Township / Civil Division | MUKWONAGO |
| Census Block Group | 3 |
| Census Block | 3002 |
| Census Tract | 203901 |
315 Westside Ave is owned and occupied by an individual.
Source: Waukesha County records, as of June 23, 2026
| Owner of Record | Individual Name on File |
|---|---|
| Mailing Address | 315 WESTSIDE AVE, MUKWONAGO, WI 53149-1339 |
| 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.
| Deed Names | Name on Deed |
|---|---|
| Record Updated | Sep 20, 2026 |
The 2025 property tax bill for 315 Westside Ave was $3,522.
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 | $3,522.00 | $303,500 Land $83,000 Building $220,500 | $321,400 |
| 2023 | $3,269.00 Homeowner's exemption | $197,500 Land $37,000 Building $160,500 | $279,700 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 315 Westside 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 | 6 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 315 Westside 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 | None beyond 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 | 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 218 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 |
| T-Mobile Fixed Wireless | 100 / 20 |
May also be available: Verizon.
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