La Crosse County property record for 421 Mayfair Pl, Onalaska, WI 54650 · Last verified February 2026
| Property Type | Residential > Single Family > Home |
|---|---|
| Lot Size | 12,197 sqft (0.28 acres) |
| Occupancy | Owner Occupied |
| Tax Bill | $3,729.00 (2025) |
| Primary APN | 018-003932-000 |
|---|---|
| Alternative APNs |
|
| Lot Area | 12,197 sqft (0.28 acres) |
|---|
| Account Number | 44150 |
|---|---|
| Old Parcel Number | 18 3932 0 |
| Street Address | 421 MAYFAIR PL |
| City | ONALASKA |
| State | WI |
| Zip | 54650-8531 |
| Property Usage | Residential Property Usage |
| Type | Residential > Single Family > Home |
| Legal Description | FIRST ADDN TO MAYFAIR ADDN LOT 62 EX E 30FT |
| Legal Range | 07 |
| Legal Township | 16 |
| Legal Section | 10 |
| Legal Quarter | NW |
| Legal Quarter Quarter | SW |
| Legal Subdivision | FIRST ADDN TO MAYFAIR ADDN |
| Legal Lot Number | 62 |
| Jurisdiction | LA CROSSE WI |
| Minor Civil Division | ONALASKA |
| Census Blockgroup | 1 |
| Census Block | 1027 |
| Census Tract | 10500 |
Source: La Crosse County records · APN 018-003932-000
Assessment roll updated January 1, 2025 · Last verified February 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 |
|---|---|
| Co-owner | Verified Secondary Owner |
| Mailing Address | 421 MAYFAIR PL, ONALASKA, WI 54650-8531 |
| Occupancy | Owner Occupied |
| Owner Type | Owner is an Individual, Couple or Unincorporated Entity |
| Date | Document |
|---|---|
| Dec 30, 2025 | Deed of Trust, Mortgage · Conventional Mortgage MARINE CU |
| Jul 29, 2019 | Deed of Trust, Mortgage · Adjustable Rate Mortgage (ARM) MARINE CU |
| Deed Names | 2 Verified Names on Deed |
|---|---|
| Last Sale | Dec 29, 1994 |
| Deed Sale | Dec 29, 1994 |
| Deed Doc Number | 1127532 |
| Record Refreshed | Jun 08, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | LA CROSSE WI |
| Property Address | 421 MAYFAIR PL, ONALASKA, WI 54650-8531 |
| Transaction Type | Mortgage |
| Record Updated | Jan 22, 2026 |
| Name | Verified Name |
|---|
| Document Number | 0001843155 |
|---|---|
| Date | Dec 30, 2025 |
| Instrument | 1843155 |
| Name | MARINE CU |
|---|---|
| Type | Credit Union |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 180 Months |
| Due | Mar 01, 2040 |
| Rate Type | Adjustable Rate |
|---|---|
| Rate | 8.13% |
| Adjustable | Document includes a rider for adjustable-rate mortgage with a specific rate change date. |
| Type Change Date | Jan 01, 2020 |
| Change Frequency | Annually |
| Min Rate At Change | 8.13% |
| Max Rate At Change | 10.1% |
| Index | 1-Year CMT |
| Max Rate | 14.1% |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | LA CROSSE WI |
| Property Address | 421 MAYFAIR PL, ONALASKA, WI 54650-8531 |
| Transaction Type | Mortgage |
| Record Updated | Mar 15, 2021 |
| Name | Verified Name |
|---|
| Document Number | 1729892 |
|---|---|
| Date | Jul 29, 2019 |
| Instrument | 1729892 |
| Name | MARINE CU |
|---|---|
| Type | Credit Union |
| Type | Adjustable Rate Mortgage (ARM) |
|---|---|
| Amount | Amount Recorded |
| Term | 180 Months |
| Due | Aug 05, 2034 |
| Rate Type | Adjustable Rate |
|---|---|
| Adjustable | Document includes a rider for adjustable-rate mortgage with a specific rate change date. |
| Type Change Date | Aug 01, 2024 |
| Change Frequency | Annually |
| Min Rate At Change | 8.23% |
| Max Rate At Change | 10.2% |
| Index | 1-Year CMT |
Source: La Crosse County records · Assessment roll updated January 1, 2025 · Last verified February 2026
| Type | Name |
|---|---|
| State | Wisconsin |
| County | La Crosse County |
| Municipality | Onalaska City |
| Unified School District | Onalaska 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 | $3,729.00 (-3.42%) Homeowner's exemption | $289,800 (+26.72%) Land $38,500 Building $251,300 | $293,100 (+28.16%) |
| 2023 | $3,861.00 Homeowner's exemption | $228,700 Land $38,500 Building $190,200 | $228,700 Land $38,500 Building $190,200 |
Search by:
By searching, you agree to: Terms • Privacy • Disclosures