Waukesha County property record for 400 Lake St, Mukwonago, WI 53149
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 1 ba · built 1930 |
| Lot Size | 0.3 acres (13,068 sqft) |
| Owner | Company Name on File |
| Last Sale | $65,000 (Mar 2015) |
| Tax Bill | $2,752 (2025) |
| Deeds & Mortgages | Apr 2021 Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | MUKV-1974-935 |
| Primary APN | MUKV-1974-935 |
|---|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 1 Bath |
| Total Rooms | 6 Rooms |
| Stories | 1 Story |
| 1st Floor Area | 432 sqft |
| Year Built | Built 1930 |
|---|---|
| Effective Year Built | Effective 1930 |
| Exterior Material | Aluminum/Vinyl |
| Lot Area | 13,068 sqft (0.3 acres) |
| Cooling System | None |
|---|---|
| Heating System | Forced Air with A/C |
| Street Address | 400 LAKE ST |
|---|---|
| City | MUKWONAGO |
| State | WI |
| Zip | 53149-1329 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | PT NW1/4 SEC 26 T5N R18E; COM CTR SEC; W 1177.44 FT & 115.5 FT N OF E/W 1/4 LI SEC 26; W 66 FT; N 198 FT; E 66 FT; S 198 FT TO BGN |
| 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 |
400 Lake St is owned by a company that acquired it in April 2021.
Source: Waukesha County records, as of June 23, 2026
| Owner of Record | Company Name on File |
|---|---|
| Mailing Address | W262S8630 OAKDALE DR, MUKWONAGO, WI 53149-8563 |
| Owner Type | Company |
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 | Mar 13, 2015 · Amount on File |
| Deed Sale | Mar 13, 2015 · Amount on File |
| Deed Document Number | 20154129244 |
| Last Transfer Date | Apr 9, 2021 |
| Transfer Doc | 0004574825 |
| Record Updated | Sep 20, 2026 |
| Document Type | Quit Claim Deed |
|---|---|
| Jurisdiction | WAUKESHA WI |
| Recording Date | Apr 13, 2021 |
| Property Address | 400 LAKE ST, MUKWONAGO, WI 53149-1329 |
| Document Number | 0004574825 |
| Instrument Date | Apr 9, 2021 |
| Instrument | 4574825 |
| Transaction Type | Transfer |
| Record Updated | Jun 17, 2021 |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Transfer Tax Exempt |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | W262S8630 OAKDALE DR, MUKWONAGO, WI 53149-8563 |
| Document Number | 0004574826 |
|---|---|
| Date | Apr 13, 2021 |
| Instrument | 4574826 |
| Name | WAUKESHA STATE BANK |
|---|---|
| Type | Bank |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Rate Type | Fixed Rate |
|---|
The 2025 property tax bill for 400 Lake St was $2,752, up 2.9% from the year before.
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 | $2,752.00 (+2.92%) | $228,200 (-) Land $84,500 Building $143,700 | $241,600 (+5.87%) |
| 2024 | $2,674.00 (+18.79%) | $228,200 (+76.9%) Land $84,500 Building $143,700 | $228,200 (+24.9%) |
| 2023 | $2,251.00 | $129,000 Land $42,500 Building $86,500 | $182,700 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 400 Lake St in Zone X, an area of minimal flood risk, within 500 ft of a high-risk flood zone.
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 |
|---|---|
| Nearest Special Flood Hazard Area | Zone AE, within 500 ft |
| 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 400 Lake St 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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