Billionaire Palantir CEO Alex Karp — who recently made headlines for a controversial manifesto posted on X about how the US should adapt to AI — is building a massive waterfront compound in Miami Beach, Gimme Shelter can reveal. 

Karp has now shelled out almost $75 million on property alone with 265 feet on the water — joining a group of California titans who appear to be hedging their bets on Florida as the Golden State weighs in on a proposed tax on billionaires.

Karp just shelled out $28.5 million for a waterfront teardown at 29 East San Marino Drive in the Venetian Islands, sources told Gimme Shelter.

Listing broker Dora Puig, founder of the brokerage firm Luxe Living Realty, declined to comment. 

The property, which sits on a third of an acre — including 105 feet of water frontage — features a charming bungalow built in 1935, along with a pool and a dock.

It stands adjacent to another property with 160 feet of water frontage that Karp purchased for $46 million at 55 East San Marino Drive on San Marino Island last summer. That property was listed by Dina Goldentayer of Douglas Elliman, who also declined Gimme Shelter’s request for comment.

Karp, who bought both properties via anonymous shell companies, was represented by broker Joel Lusky, of the Brokerage South Florida Real Estate, in both deals. 

Multiple sources told Gimme Shelter that Karp plans to build a compound on the adjacent waterfront properties.

After listing for $30 million on March 16, No. 29 sold eight days later for $28.5 million, according to records. 

“The property was bought for the land,” a source said. 

The purchases come as Palantir — which Karp co-founded with Peter Thiel in 2003 — moved its business headquarters from Denver to Aventura, Fla. in February. 

Thiel, for his part, also owns two adjacent mansions in the Venetian Islands, which he bought for $18 million back in 2020. In December, Thiel also signed a lease for his private investment firm, Thiel Capital, in Wynwood, the trendy tech, arts and design district in Miami. 

The two have plenty of wealthy neighbors to share — and it’s a group of ultra-high-net-worth individuals that keeps growing in Florida.

In March, Gimme Shelter revealed that Meta honcho Mark Zuckerberg had purchased a $170 million property under construction in Indian Creek, where Jeff Bezos owns property, as does Ivanka Trump and Jared Kushner. 

Google co-founders Larry Page and Sergey Brin have also purchased homes in the Miami area in recent months.