North Dakota’s Richest Man Lists Mega-Mansion For Sale

It's not every day you hear about a buying opportunity like this in North Dakota. According to a post made on ig_mansions, the Gary and Connie Tharaldson Dynasty Trust, recently listed his house at 6025 Prairie Grove for sale. According to Inforum, the beneficiary of the trust is Matt Tharaldson, son of billionaire, Gary Tharaldson. As of right now, this property is currently one of the most expensive home for sale in the state.

About Gary Tharaldson

(Also Read: 5 of the Wealthiest People in North Dakota)

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Property Details

Curious about the home? The 25,000 sq ft home, that sits on 3.4 acres of land is perfectly described on Zillow as an "ultra-luxury estate" and "the pinnacle of private living in Fargo."

Bedrooms & bathrooms
Bedrooms: 10
Bathrooms: 17
Full bathrooms: 12
3/4 bathrooms: 1
1/2 bathrooms: 4

The property also has an indoor pool/sauna, hot yoga studio, an indoor basketball/pickleball court, and a gymnastics area.

As you can imagine, the primary wing is massive; there's a primary display kitchen backed by a large butler's pantry/prep kitchen, and the garage is also something to be admired as it's a whopping 5,200 sq ft, and has an 8-car capacity.

You might be asking yourself: just how much is North Dakota's most expensive home going for? According to Zillow, the home is currently (July 6th 2026) listed at $6.5 million.

Something interested buyers might want to keep in mind is that the estate is currently in its construction phase, so you have the ability to collaborate with their general contractor and designer to customize those interior finishes, layout tailoring and smart home integrations.

The home has been listed by RE/MAX Legacy Realty for just under two weeks. Serious inquiries can be directed at RE/MAX Legacy Realty and/or Barry Gruchow.

Barry Gruchow 701-200-9801,