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650 S Main STREET, 
Fontana, WI 53125

$2,495,000

9

Beds

6

Baths

10,000

Sq Ft

Single Family

Active

Listed by

Shirley Coulman

Compass Wisconsin-Lake Geneva

262-248-4492

Last updated:

October 21, 2026, 04:17 PM

MLS#

1983975

Source:

Metro MLS

About This Home

650 S Main STREET

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.

Home Facts

Single Family

6 Baths

9 Bedrooms

Built in 1886

Price Summary

2,495,000

$249 per Sq. Ft.

MLS #:

1983975

Last Updated:

October 21, 2026, 04:17 PM

Added:

13 day(s) ago

Rooms & Interior

Bedrooms

Total Bedrooms:

9

Bathrooms

Total Bathrooms:

6

Full Bathrooms:

5

Interior

Living Area:

10,000 Sq. Ft.

Structure

Structure

Building Area:

10,000 Sq. Ft.

Year Built:

1886

Lot

Lot Size (Sq. Ft):

57,063

Finances & Disclosures

Finances

Price:

$2,495,000

Price per Sq. Ft:

$249 per Sq. Ft.

Source:Metro MLS
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650 S Main STREET
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Contact an Agent

Yes, I would like more information. Please use and/or share my information with a Coldwell Banker ® affiliated agent to contact me about my real estate needs. By clicking Contact, I request to be contacted by phone or text message and consent to being contacted by automated means. I understand that my consent to receive calls or texts is not a condition of purchasing any property, goods, or services. Alternatively, I understand that I can access real estate services by email or I can contact the agent myself.

If a Coldwell Banker affiliated agent is not available in the area where I need assistance, I agree to be contacted by a real estate agent affiliated with another brand owned or licensed by Anywhere Real Estate (BHGRE®, CENTURY 21®, Corcoran®, ERA®, or Sotheby's International Realty®). I acknowledge that I have read and agree to the terms of use and privacy notice.