Compass Wisconsin-Lake Geneva
650 S Main St, Fontana, WI
$2,495,000
9
Beds
5½
Baths
10,000
Square feet
1.31
Acres
Compass Wisconsin-Lake Geneva
About 650 S Main St
Discover Black Walnut Farm, a one-of-a-kind 9-bedroom, 5.5-bath Fontana estate near Geneva Lake. Set on approximately 1.3 acres, this nearly 10,000-sq.-ft. landmark unites an 1836 post-and-beam barn with an 1899 prairie-style trolley depot. Inside, exposed beams, a stone fireplace, grand gathering spaces, a 14-seat dining table, den, bar and game room create an unforgettable setting for up to 26 guests. Outdoors, enjoy tennis/pickleball, a seasonal swim spa, fire pit, porch, deck, lawn and gardens. A highly rated short-term rental with documented provenance, a preservation award and proven income history. Tourist Rooming House permit stated through June 30, 2027. Buyer to verify zoning, permit transferability and future rental use.
Features of 650 S Main St
| MLS® # | 1983975 |
|---|---|
| Price | $2,495,000 |
| Bedrooms | 9 |
| Bathrooms | 5.50 |
| Full Baths | 5 |
| Half Baths | 1 |
| Square Footage | 10,000 |
| Acres | 1.31 |
| Year Built | 1886 |
| Type | Single Family |
| Style | Other |
| Status | Active |
Community Information
| Address | 650 S Main St |
|---|---|
| City | Fontana |
| County | Walworth |
| State | WI |
| Zip Code | 53125 |
Amenities
| Utilities | Cable TV Available |
|---|---|
| Parking | Unpaved,Parking Space |
| Has Pool | No |
Interior
| Interior Features | Sauna,Hot Tub,Walk-thru Bedroom,Walk-In Closet(s),Vaulted Ceiling(s),High Speed Internet |
|---|---|
| Appliances | Oven,Range,Refrigerator,Disposal,Dishwasher,Microwave,Washer,Dryer |
| Heating | Natural Gas,Forced Air |
| Cooling | Window Unit(s),Central Air |
| Fireplace | Yes |
| Fireplaces | Natural Fireplace |
| Stories | Other |
| Has Basement | No |
| Basement | Full,Walk Out/Outer Door,Stone,Partially Finished |
Exterior
| Lot Description | Adjacent to Park/Greenway,View of Water |
|---|---|
| Windows | Skylight |
| Construction | Vinyl,Stucco |
School Information
| District | Fontana J8 |
|---|---|
| Elementary | Fontana |
| High | Big Foot |
Additional Information
| Date Listed | October 8th, 2026 |
|---|---|
| Days on Market | 1 |
| Zoning | Res |
| Short Sale | No |
| RE / Bank Owned | No |
| Taxes | $6,947 |
| Tax Year | 2025 |
| Agent | Shirley Coulman |
| Office | Compass Wisconsin-Lake Geneva |
Listing Details
| Office | Compass Wisconsin-Lake Geneva |
|---|---|
| Source of Data | MetroMLS |