Waukesha County property record for 423 Atkinson St, Mukwonago, WI 53149 · Last verified July 2026
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 2 ba · built 1970 |
| Lot Size | 0.31 acres (13,504 sqft) |
| Owner | Individual Name on File |
| Last Sale | $200,000 (Mar 2008) |
| Tax Bill | $3,983 (2025) |
| Deeds & Mortgages | Mar 2022 Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | MUKV-1976-058 |
| Primary APN | MUKV-1976-058 |
|---|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 7 Rooms |
| Stories | 1 Story |
| 1st Floor Area | 432 sqft |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1970 |
|---|---|
| Effective Year Built | Effective 1970 |
| Exterior Material | Aluminum/Vinyl |
| Lot Area | 13,504 sqft (0.31 acres) |
| Garage Type | Attached |
| Parking Spaces | 3 Parking Spaces |
| Cooling System | HVAC |
|---|---|
| Heating System | Forced Air with A/C |
| Street Address | 423 ATKINSON ST |
|---|---|
| City | MUKWONAGO |
| State | WI |
| Zip | 53149-1303 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | LOT 4 BLK 8 MUKWONAGO SHORES PT SE1/4 & SW1/4 SEC 26 T5N R18E DOC# 3558189 |
| Legal Range | 18E |
| Legal Township | 5N |
| Legal Section | 26 |
| Legal Subdivision | MUKWONAGO SHORES |
| Legal Block | 8 |
| Legal Lot Number | 4 |
| Jurisdiction | WAUKESHA WI |
| Township / Civil Division | MUKWONAGO |
| Census Block Group | 3 |
| Census Block | 3010 |
| Census Tract | 203901 |
Source: Waukesha County records · APN MUKV-1976-058
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 | Individual Name on File |
|---|---|
| Mailing Address | 423 ATKINSON ST, MUKWONAGO, WI 53149-1303 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Deed Names | Verified Name on Deed |
|---|---|
| Last Sale | Mar 27, 2008 · Amount on Record |
| Deed Sale | Mar 27, 2008 · Amount on Record |
| Prior Sale | Sep 03, 2004 · Amount on Record |
| Deed Document Number | 20083558189 |
| Record Updated | Sep 20, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | WAUKESHA WI |
| Property Address | 423 ATKINSON ST, MUKWONAGO, WI 53149-1303 |
| Transaction Type | Mortgage |
| Record Updated | Apr 06, 2022 |
| Name | Verified Name |
|---|
| Document Number | 0004654970 |
|---|---|
| Date | Mar 04, 2022 |
| Instrument | 4654970 |
| Name | GUARDIAN CU |
|---|---|
| Type | Credit Union |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 240 Months |
| Due | Mar 03, 2042 |
| Rate Type | Fixed Rate |
|---|
Source: Waukesha County records · Assessment roll updated June 23, 2026 · Last verified July 2026
| Type | Name |
|---|---|
| State | Wisconsin |
| County | Waukesha County |
| Municipality | Mukwonago Village |
| Unified School District | Mukwonago 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 | $3,983.00 (+25.45%) | $321,900 (+85.53%) Land $91,500 Building $230,400 | $340,800 (+38.71%) |
| 2023 | $3,175.00 Homeowner's exemption | $173,500 Land $39,000 Building $134,500 | $245,700 |
Source: FEMA National Flood Hazard Layer, Waukesha County (55133C), updated October 19, 2025 · FEMA OpenFEMA NFIP redacted claims and policies, census block group 551332039013, refreshed September 2026 · USDA Forest Service Wildfire Risk to Communities, 2nd edition (2024), fuels as of 2020 · Last verified October 2026
| FEMA Flood Zone | Zone X |
|---|---|
| Special Flood Hazard Area | No |
| Flood Hazard | Minimal |
| 500-Year Floodplain | No |
| Nearby Flood Policies | 6 in force |
| Wildfire Risk | Low above 20% of the US · above 57% of Wisconsin |
|---|---|
| Wildfire Likelihood | About 1 in 10,000 per year |
| Exposure | Direct burnable vegetation at the parcel |
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, availability as of December 31, 2025 · Published October 2026 · based on 218 locations within about half a mile of this property
| Provider | Technology | Download / Upload (Mbps) |
|---|---|---|
| Spectrum | Cable | 1,000 / 1,000 |
| T-Mobile USA | Fixed Wireless | 100 / 20 |
| Starlink | Satellite (low-earth orbit) | 280 / 30 |
May also be available at this address: Verizon, Spectrum. Availability varies by address; speeds are provider-advertised maximums, not measured.
5G and 4G LTE
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