• Tech billionaire Darwin Deason has spent about $86 million creating his own personal Versailles.
• It took years to finish the Sand Castle, his Pacific Ocean-front estate in La Jolla, California.
• Now ready to move on, Deason has listed it for a potentially record-breaking sum: $108 million.

Darwin Deason is poised to break a record.

The tech billionaire has listed his opulent estate overlooking the Pacific Ocean in La Jolla, California, for $108 million.

If it sells for even close to that price, it will more than double the San Diego County record, set by private-equity billionaire Egon Durban, who spent $44.1 million on a property in 2023.

In 2009, after Deason sold his company, Affiliated Computer Services, to Xerox for $6.4 billion, he spent about $26 million on the house and a neighboring parcel of land, according to the Wall Street Journal, which first reported the listing.

Over about six years, the Journal said, Deason spent about $60 million turning the lots into a sandy-colored, balcony-laden 13,000-square-foot mansion.

The billionaire was inspired by the French Palace of Versailles and Hotel du Cap-Eden-Roc, a five-star hotel in the South of France that is a favorite of celebrities. The house's ornate details include glittering chandeliers, gold-accented ceilings, mosaics, marble floors, and antique statues.

Deason mainly uses the 10-bedroom property, located at 1900 Spindrift Drive and dubbed the Sand Castle, as a vacation retreat. Based in Dallas, he has other vacation homes in Texas and Mexico, as well as a yacht. Deason, 84, is worth $1.3 billion as of October 23 and has three children, according to Forbes.

"In the history of La Jolla, there has never been and will never be another property built on the waterfront like the Sand Castle," listing agents Brett Dickinson and Ross Clark, of Compass, told Business Insider via email.

Take a look inside.