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A $65 Million Miami Mansion With an Aquarium So Big a Scuba Diver Has to Clean It

Mr. Helberg is going to Washington. 

Jacob Helberg, President Trump’s pick for undersecretary of state for growth, energy, and the environment, is putting his bayfront Florida home on the market for a cool $65 million. However, don’t expect to find it listed on the MLS just yet—Helberg is aiming for an off-market deal as he makes his move to Washington, D.C. 

Helberg and his husband, venture capitalist Keith Rabois, purchased the Venetian Islands property in 2020 for around $29 million. Since then, they’ve poured about $15 million on customizations, including a jaw-dropping 5,600-gallon aquarium imported from Japan that cost the couple about $1 million, according to agent Julian Johnston of the Corcoran Group. The tank is so massive that it requires a scuba diver for maintenance, who enters through a hatch discreetly tucked away inside the closet of the primary bedroom.

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The 5,600-gallon aquarium stands between two spacious lounge areas overlooking the pool.

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The design, originally built for Andre Radandt, former president of Bolthouse Farms, the waterfront home is a masterclass in modern elegance. Completed in 2019, the six-bedroom contemporary spread spans an impressive 15,000 square feet. One of the most striking elements is the entrance—a bridge over a reflecting pool leading to a two-story wall with intricate cutout designs by sculptor Erwin Hauer. Other notable features include an infinity-edge pool, an outdoor kitchen, a private dock with a 55,000-pound boat lift, and a rooftop deck with a hot tub for soaking in the dreamy water views.

The open-plan kitchen and living area is also a showstopper, complete with a large island, casual dining space, and twin glass-enclosed wine cellars. The couple also added custom wood floors and calfskin wall panels, elevating the home’s sophisticated feel. 

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Floor-to-ceiling windows offer up panorampic views over Biscayne Bay.

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A senior adviser to Palantir Technologies CEO Alex Karp, Helberg has yet to be confirmed in his new role within the administration. Meanwhile, Rabois continues to make waves as a venture capitalist, with investments in companies like Stripe and DoorDash. The couple’s love story goes beyond real estate—they tied the knot in 2018 in a ceremony officiated by OpenAI’s Sam Altman on the island of St. Barthélemy.

Helberg and Rabois recently acquired a seven-bedroom, circa-1912 home in D.C.’s Kalorama neighborhood near the French Embassy for approximately $7 million, according to property records. Kalorama has long been home to power couples like Ivanka Trump and Jared Kushner, as well as Barack and Michelle Obama. Billionaires like Jeff Bezos and former Trump officials such as David Sacks, Howard Lutnick, and Scott Bessent also reside nearby. 

Click here to see more photos of the waterfront home on Venetian Island.

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Source: Luxury - robbreport.com


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