Mark Cuban Bought His First 'Enormous' $25 Million Mansion Sight Unseen For Half The Price. It Was So Huge He Avoided The Upstairs For Years

Mark Cuban's journey to billionaire status is filled with bold moves and quirky decisions. Still, one of his most outrageous stories involves buying a $25 million mansion without ever stepping foot inside. For most people, a purchase that big would require months of research, endless walk-throughs and plenty of second opinions. For Cuban? He took a leap of faith – and it paid off.

A Deal Too Good to Pass up

After selling his first major company, MicroSolutions, for $6 million in 1990 and later striking gold with Broadcast.com (which Yahoo purchased for $5.9 billion in 1999), Cuban had the kind of financial freedom most can only dream of. So, when one of his former business partners came to him with an offer, he jumped on it.

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The pitch was simple: a massive 24,000-square-foot mansion that had originally cost $25 million to build was available for half the price – just $12 million. Cuban didn't even blink. He bought the house sight unseen. “I'll buy it, sight unseen,” he said, trusting the deal was too good to pass up.

A House Too Big to Handle

Cuban's new home was enormous and had so many rooms that even years later, he hadn't visited all of them. "There were times I'd go years without going upstairs," Cuban admitted. And when he finally did venture upstairs, there were entire rooms that still felt like a mystery to him. Even today, he's unsure how many bedrooms or bathrooms the house has.

What did Cuban do with all that space? Before he got married, he filled it with … nothing. Instead of furniture, his ballroom became a personal whiffle ball stadium. Complete with bases and a bar, it was the perfect setup for games with friends. “You could curve the ball and hit and run and hit home runs," Cuban said. He only started adding furniture after tying the knot.

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From Humble Beginnings to Lavish Living

Cuban's rise to wealth makes his extravagant purchase even more remarkable. In the early '80s, he shared a $600-a-month Dallas apartment with five other guys. Cuban didn't even have a bedroom – he slept in a sleeping bag on the living room floor. His wardrobe lived in a corner, perpetually wrinkled and his glasses were held together by athletic tape. 

His first job in Dallas was bartending at Elan, where he relied on happy-hour snacks to stretch his budget. He later sold software at Your Business Software, learning on the fly despite knowing little about computers. Cuban was even fired from that job after prioritizing a deal over opening the store, but it was a blessing in disguise. That firing pushed him to start his first company, MicroSolutions.

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