Keith Rabois and Jacob Helberg’s $50 Million Miami Waterfront Mansion
Opendoor Co-founder, Keith Rabois, and his husband, Jacob Helberg, who serves as the Undersecretary of State for economic growth, energy, and the environment in the Trump administration, had listed their ultra-modern Venetian Islands estate in Miami for $65 million in early 2025 before removing it from the market a few months later.
Helberg also serves as a senior advisor to Palantir CEO Alex Karp.
The couple, who purchased the home in 2020 for around $29 million, invested an additional $15 million in upgrades after purchasing the home from former Bolthouse Farms president Andre Radandt.
Property Highlights
Value: $50 million
Location: Venetian Islands, Miami, FL
Size: 14,688 square feet (22,034 total area)
Bedrooms: 6
Bathrooms: 12
Notable Features: Rooftop terrace with spa, infinity-edge pool, 5,600-gallon aquarium, private dock with boat lift, custom wood floors, and calfskin wall panels
Deep Dive Into Our Favorite Spots
Out of all 14,688 square feet, there are a few spots that truly highlight what makes Jacob & Keith’s Miami mansion stand out.
Aquatic Living Room
The living room is defined by a dramatic 5,600-gallon aquarium, imported from Japan, that acts as a striking divider between two living spaces.
On one side, a refined sitting area takes advantage of floor-to-ceiling windows that frame views of the water, with neutral-toned furnishings and a sculptural table enhancing the serene atmosphere.
On the other side, a sophisticated lounge features plush seating, a built-in bar, and contemporary artwork, creating a setting designed for entertaining, all under the mesmerizing glow of the massive aquarium, which is so large it requires a scuba diver for maintenance.
Unique Stairway Design
As you head upstairs, a one-of-a-kind art installation hangs from the ceiling, resembling a whimsical school project of the solar system.
The planets stretch across the entire upper landing, adding a playful and unexpected touch to an otherwise polished space.
Primary Suite Balcony
Extending from the primary suite is a balcony open on all sides and looking out directly to the Atlantic. A pair of cushioned lounge chairs sits beneath the open pergola, offering an uninterrupted view of the Bay framed by lush palm trees.
Resort-Style Pool
Back down on the ground, a large, resort-style pool stretches across the back of the property, framed by sleek lounge chairs and lush palm trees.
To the right of the pool, a covered outdoor kitchen and bar area provides space for alfresco dining, complete with a built-in grill and simple dining area.
The property’s modern architecture creates a striking backdrop to the pool, with expansive glass walls, creating an overall luxurious experience for enjoying the Miami lifestyle.
Private Dock
Just beyond the pool and patch of green lawn sits a private dock equipped with a boat lift. It’s a feature that not only elevates the estate’s recreational appeal but also makes the most of its prime waterfront location.
More Photos Inside The Mansion
Built around 2019 by the late Andre Radandt, this 15,000-square-foot Miami Beach mansion blends modern design with artistic detail, which you can see in more photos in the Instagram posts from WSJ Real Estate and Robb Report.
The six-bedroom home opens with a dramatic entryway, complete with a bridge over a reflecting pool and a sculptural two-story wall by Erwin Hauer.
Inside, the open-plan kitchen and living area features twin glass-enclosed wine cellars, restored wood floors, and calfskin wall paneling, all adding warmth and sophistication to the sleek architecture before the vibrant greenery of the backyard takes over.
Full Video Tour
For a more complete look inside the mansion as it was when Helberg and Rabois first purchased it, watch the video tour from the Bill and Bryan Team, which lets you walk through the home room by room.
One of the biggest highlights finally seen in the video is the massive rooftop deck, which stretches the entire length of the house and includes multiple areas for outdoor dining, lounging, and soaking in the rooftop hot tub.
Final Thoughts
With Rabois’ leading the recovery plan on Opendoor and Helberg’s high-profile role in Washington, their Miami waterfront mansion was briefly listed for $65 million, signaling a potential shift from coastal luxury to political duty.
But with the home now officially off the market, it seems the couple isn’t quite ready to part ways with his modern masterpiece just yet.
Whether they keep it as a personal getaway or waits for a more opportune time to sell, the decision underscores the unique value and versatility of the estate.
