Recently Viewed Properties
See This Home
Save This Listing
Close

View All Photos

$2,495,000 Just Listed

  • For Sale
  • Active
  • Single Family
  • 9 Beds
  • 5 Full Baths
  • 1 Partial Bath
  • 10,000 Sq. Ft.
  • Updated 9 hours ago
See This Home
Save This Home
See This Home
Save This Home
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.

Full Property Details for 650 S Main St

General

  • Price: $2,495,000
  • Taxes: $6,947 (2025)
  • Status: Active
  • Type: Single Family
  • Source: MetroMLS_Milwaukee_Wirex
  • MLS ID: 1983975
  • Updated: 10/8/2026
  • Added to Site: Today

Interior

  • Interior Features: Cable TV Available, High Speed Internet, Hot Tub, Natural Fireplace, Sauna, Simulated Wood Floors, Skylight, Vaulted Ceiling(s), Walk-In Closet(s), Walk-thru Bedroom, Wood Floors
  • Appliances: Dishwasher, Disposal, Dryer, Microwave, Oven, Range, Refrigerator, Washer

Rooms

Bathrooms

  • Total Bathrooms: 6
  • Full Bathrooms: 5
  • Half Bathrooms: 1
  • Bathroom: At least one Bathtub, Ceramic Tile, Jetted Tub, MBR Bath Separate Tub, MBR Bath Walk-in Shower, Off Master Bedroom, Shower over Tub, Shower Stall

Bedrooms

  • Total Bedrooms: 9
  • Bedroom 1: 30 x 14, Upper Level
  • Bedroom 2: 25 x 25, Upper Level
  • Bedroom 3: 21 x 12, Upper Level
  • Bedroom 4: 18 x 11, Upper Level
  • Bedroom 5: 15 x 14, Upper Level
  • Bedroom 6: 12 x 9, Main Level
  • Bedroom 7: 12 x 9, Main Level

Other Rooms

  • Living Room: 25 x 25, Upper Level
  • Kitchen: 15 x 15, Main Level
  • Dining Room: 29 x 16, Main Level
  • Den: 10 x 10, Lower Level
  • Rec Room: 35 x 11, Main Level
  • Laundry: 10 x 10, Lower Level

Exterior

  • Exterior Features: Deck, Patio

Location

  • County: Walworth
  • Driving Directions: Hwy 67 to Dewey Ave. Left on Main. Home on Right

School Information

  • School District: Fontana J8
  • Elementary School: Fontana
  • High School: Big Foot

Heating & Cooling

  • Heating/Cooling: Natural Gas, Central Air Conditioning, Forced Air, Multiple Units, Window Unit(s)

Utilities

  • Water/Sewer: Municipal Sewer, Municipal Water

Structural Information

  • Architectural Style: Other
  • Exterior Const.: Stucco, Vinyl
  • Basement Desc.: Full, Partially Finished, Stone, Walk-Out/Outer Door
  • Square Feet: 10,000
  • Year Built: 1886

Additional Structures

  • Other Structures: Storage Shed

Lot Features

  • Lot Size (Acres): 1.31
  • Zoning: Res

Financial Considerations

  • Tax Amount: $6,947
  • Tax Year: 2025

Listed by Compass Wisconsin-Lake Geneva

Quickly Find Out More

* Indicates a required field

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 Send Message, 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 an 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.

We Value Your Privacy

Listing agent

— 650 S Main St —

  • Compass Wisconsin-Lake Geneva

Get Pre-Approved Today

Be ready to buy your new home!

with our affiliated lender
NMLS#: 1598647

Get Pre-Approved

Get a Great Insurance Rate

Find the right home insurance for your new home!

with our affiliated in-house agency

Request a Quote

Save up to an additional 20% by bundling your home and auto together!

Be ready to buy your new home!

with our affiliated lender
NMLS#: 1598647

Get Pre-Approved

Find the right home insurance for your new home!

with our affiliated in-house agency

Request a Quote

Save up to an additional 20% by bundling your home and auto together!

Schools serving 650 S Main St

School Districts:Fontana Joint No. 8 School District, Big Foot Union High School District
NameGradesDistance
Fontana Elementary School
450 S Main St, Fontana-on-Geneva Lake, WI 53125
PK-80.3 mi
Big Foot High School
401 Devils Lane, Walworth, WI 53184
9-121.3 mi
Disclaimer: School attendance boundaries provided by ATTOM Data Solutions and are for reference only. Contact the school directly to verify enrollment eligibility.

Price & Sales History for 650 S Main St Get Price Alerts and Save Property

Date
Details
Price
Change
Source
10/08/2026
Listed
$2,495,000
333.91%
MLS
5/08/2020
Sold
$575,000
—
Public Record
Get Price Alerts and Save Property
Disclaimer: Historical sales information is derived from public records provided by the county offices. Information is not guaranteed and should be independently verified.

Tax History for 650 S Main St

Year
Property Taxes
Change
Tax Assessment
Change
2025
$6,947
4%
$873,100
—
2024
$6,653
-12%
$873,100
46%
2023
$7,536
1%
$598,500
4%
2022
$7,461
11%
$575,000
—
2021
$6,739
5%
$575,000
19%
2020
$6,400
-18%
$484,800
—
2019
$7,808
24%
$484,800
—
2018
$6,282
1%
$484,800
—
2017
$6,245
-4%
$484,800
2%
2016
$6,485
3%
$474,800
2%
2015
$6,304
-1%
$463,400
—
2014
$6,394
—
$463,400
-2%
2013
$6,411
—
$475,000
—
View All
Disclaimer: Historical tax information is derived from public records provided by the county offices. Information is not guaranteed and should be independently verified.

Estimate the Cost for 650 S Main St

$
Down Payment
%
$
%

$
$

*These costs are estimates, and the interest rates assume exceptional credit standing.

Be ready to buy your new home!

with our affiliated lender
NMLS#: 1598647

Get Pre-Approved

Listed by Compass Wisconsin-Lake Geneva

Similar Properties near 650 S Main St

This is a carousel with tiles that activate property listing cards. Use the previous and next buttons to navigate.

816 Wisconsin St, Lake Geneva, WI 53147 - Photo 1
$1,995,000

816 Wisconsin St  Lake Geneva, WI 53147

  • Single Family
  • Active
  • 7
    Beds
  • 4
    Total Baths
  • 4,049
    Sq. Ft.
Listed by Compass Wisconsin-Lake Geneva

Just Listed near 650 S Main St

This is a carousel with tiles that activate property listing cards. Use the previous and next buttons to navigate.

217 Randolph St, Walworth, WI 53184 - Photo 1 Just Listed
$360,000

217 Randolph St  Walworth, WI 53184

  • Single Family
  • Active
  • Updated 2 days ago
  • 3
    Beds
  • 2
    Total Baths
  • 1,626
    Sq. Ft.
Listed by EXIT Realty HGM
W6860 Wood Ave, Walworth, WI 53115 - Photo 1 Just Listed
$418,000

W6860 Wood Ave  Walworth, WI 53115

  • Single Family
  • Active
  • Updated 2 days ago
  • 3
    Beds
  • 4
    Total Baths
  • 1,582
    Sq. Ft.
Listed by Shorewest Realtors, Inc.
22 S Walworth Ave, Williams Bay, WI 53191 - Photo 1 Just Listed
$1,450,000

22 S Walworth Ave  Williams Bay, WI 53191

  • Single Family
  • Active
  • Updated 3 days ago
  • 3
    Beds
  • 3
    Total Baths
  • 1,626
    Sq. Ft.
Listed by Shorewest Realtors, Inc.
14 Hill St, Williams Bay, WI 53191 - Photo 1 Just Listed
$305,000

14 Hill St  Williams Bay, WI 53191

  • Single Family
  • Active
  • Updated 13 hours ago
  • 2
    Beds
  • 1
    Total Bath
  • 726
    Sq. Ft.
Listed by Spotlight Real Estate, LLC

Price Reduced near 650 S Main St

This is a carousel with tiles that activate property listing cards. Use the previous and next buttons to navigate.

371 Frost Dr, Williams Bay, WI 53191 - Photo 1 Price Reduced
-$50,000 (-6.71%)
$695,000

371 Frost Dr  Williams Bay, WI 53191

  • Single Family
  • Active
  • Updated 1 day ago
  • 4
    Beds
  • 3
    Total Baths
  • 2,439
    Sq. Ft.
Listed by Shorewest Realtors, Inc.
403 Maple Ln, Williams Bay, WI 53191 - Photo 1 Price Reduced
-$22,500 (-3.23%)
$675,000

403 Maple Ln  Williams Bay, WI 53191

  • Single Family
  • Active
  • Updated 2 days ago
  • 4
    Beds
  • 4
    Total Baths
  • 3,093
    Sq. Ft.
Listed by Shorewest Realtors, Inc.
N2436 Shore View Dr, Linn, WI 53147 - Photo 1 Price Reduced
-$48,000 (-4.18%)
$1,099,000

N2436 Shore View Dr  Linn, WI 53147

  • Single Family
  • Active
  • Updated 3 days ago
  • 4
    Beds
  • 3
    Total Baths
  • 3,000
    Sq. Ft.
Listed by Quorum Enterprises, Inc.
N1451 Maple Ridge Rd, Linn, WI 53147 - Photo 1 Price Reduced
-$30,000 (-3.75%)
$769,000

N1451 Maple Ridge Rd  Linn, WI 53147

  • Single Family
  • Active
  • Updated 4 days ago
  • 3
    Beds
  • 2
    Total Baths
  • 1,764
    Sq. Ft.
Listed by Compass Wisconsin-Lake Geneva

Recent Sales near 650 S Main St

This is a carousel with tiles that activate property listing cards. Use the previous and next buttons to navigate.

9 Dartmouth Rd, Williams Bay, WI 53191 - Photo 1 Sold
$2,775,000

9 Dartmouth Rd  Williams Bay, WI 53191

  • Single Family
  • Closed
  • 3
    Beds
  • 3
    Total Baths
  • 2,781
    Sq. Ft.
Listed by @Properties
Sold by MELGES Real Estate, LLC
2572 N Shore Dr, Delavan, WI 53115 - Photo 1 Sold
$2,425,000

2572 N Shore Dr  Delavan, WI 53115

  • Single Family
  • Closed
  • 3
    Beds
  • 2
    Total Baths
  • 2,476
    Sq. Ft.
Listed by Compass Wisconsin-Lake Geneva
Sold by Ryan G. Simons Company, Inc.
N1817 Wildwood Dr, Linn, WI 53147 - Photo 1 Sold
$2,700,000

N1817 Wildwood Dr  Linn, WI 53147

  • Single Family
  • Closed
  • 5
    Beds
  • 4
    Total Baths
  • 3,394
    Sq. Ft.
Listed by Compass Wisconsin-Lake Geneva
Sold by Compass Wisconsin-Lake Geneva
N2218 Bonnie Brae -, Linn, WI 53147 - Photo 1 Sold
$2,300,000

N2218 Bonnie Brae -  Linn, WI 53147

  • Single Family
  • Closed
  • 4
    Beds
  • 2
    Total Baths
  • 2,500
    Sq. Ft.
Listed by Compass Wisconsin-Lake Geneva
Sold by MELGES Real Estate, LLC

650 S Main St, Fontana, WI 53125 (MLS# 1983975) is a Single Family property with 9 bedrooms, 5 full bathrooms and 1 partial bathroom. 650 S Main St is currently listed for $2,495,000 and was received on October 08, 2026. Want to learn more about 650 S Main St? Do you have questions about finding other Single Family real estate for sale in Fontana? You can browse all Fontana real estate or contact a Coldwell Banker agent to request more information.

Tour this property