Billionaire Palantir CEO Alex Karp also quietly purchased the waterfront home next door to his for $28.5 million, making his total investment on his Venetian Islands street nearly $75 million.
Karp, who moved the headquarters for his controversial AI-software firm to South Florida from Denver earlier this year, plans to develop a compound on the properties at 29 and 55 East San Marino Drive, Page Six first reported. Karp paid $46 million in June of last year for the 9,700-square-foot mansion at 55 East San Marino Drive. The Real Deal first reported his identity as the buyer earlier this year.
Together, the two lots total 0.8 acres with 265 feet of water frontage.
In April, he bought the second property next door, using a similar LLC, records show. The 2,900-square-foot house, built in 1945, was on the market with Dora Puig of Luxe Living Realty, asking $30 million. 29 ESM Inc., which paid just $6.8 million for the house in 2015, sold the property. Late restaurateur Karim Masri, who died in 2024, previously lived there.
A number of multimillionaires and billionaires have purchased homes in South Florida in recent months, some propelled by the proposed wealth tax in California and all likely fueled by Florida’s lack of state income tax.
In March, Facebook founder Mark Zuckerberg and his wife Priscilla Chan closed on an under-construction waterfront Indian Creek estate for $170 million. That deal marks the most expensive home ever sold in Miami-Dade County. That same month, ex-Starbucks CEO Howard Schultz announced his move to Miami from Seattle on his LinkedIn, spending $44 million to acquire a penthouse at the Four Seasons Residences at the Surf Club.
Also in recent months, Google co-founder Larry Page paid $188 million for three Coconut Grove homes in deals that were recorded in December and January. More recently, his former colleague, Google co-founder Sergey Brin, paid $51 million for the waterfront Allison Island home of LVMH CEO Michael Burke.
— Katherine Kallergis
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