OpenAI CEO Sam Altman Lists Hawaii Estate For $49 Million
OpenAI CEO Sam Altman has listed his massive Hawaii estate for $49 million, just 18 months after he wed his longtime partner, Oliver Mulherin, on the property’s grounds.
Altman purchased the residence in an off-market deal in July 2021 for $41 million, and the listing marks one of the most notable luxury offerings to hit Hawaii’s real estate market this year.
Previously owned by Microsoft co-founder Paul Allen and designed by de Reus Architects, the property combines architectural pedigree with the peacefulness of Hawaii’s natural beauty.
Property Highlights
Price: $49 million
Location: Kailua Bay, Hawaii
Size: 12,528 square feet
Bedrooms: 10
Bathrooms: 13
Notable Features: Interiors by Philpotts Interiors, updates by Michael Kao, main residence with theater and two offices, guest house with gathering room and full kitchen, beach bungalow, private marina, advanced security systems, sweeping ocean views
Exploring Kailua-Kona
Kailua-Kona has long been known for its luxury homes, attracting high-profile buyers with its sweeping ocean views, warm climate, and proximity to world-class beaches and golf courses, as seen in the walking tour from traveler_HIRO.
Kailua Bay, where Altman’s property is located, is especially prized for its seclusion, with private lots shielded from neighbors and public access.
Gated entry and a sophisticated security system further ensure peace of mind, an essential feature for a billionaire like Sam Altman.
Inside Altman’s Home
Sydney Sotheby’s Lower North Shore offers a great first look inside Sam Altman’s Hawaii compound with photos of the main house.
Designed with expansive living in mind, the home features five bedrooms, a private theater, dual offices, and floor-to-ceiling windows framing views of Kailua Bay and the Pacific Ocean right through the dining room.
Interiors by Philpotts Interiors bring a contemporary island aesthetic, while recent refinements by designer Michael Kao elevate the home with modern touches.
Outdoor Amenities
Set on 21.8 acres, Altman’s property offers a wealth of outdoor amenities and additional structures, adding both versatility and scale to the estate.
Pool and Outdoor Deck
Directly off the main house, the first outdoor space you encounter is the outdoor deck and pool area. The pool stretches out like a natural lagoon, sunken into the landscape and surrounded by greenery.
Just above, the patio offers open-air lounging, while a covered cabana provides a shaded dining area, creating a smooth blend of relaxation and entertainment.

Private Marina
Just steps away, a private marina provides boat landings and access to small sandy beaches, all tucked within palm-lined surroundings.
Set against the backdrop of crystal-blue waters, it’s a rare amenity that brings the feeling of a tropical escape right into Altman’s backyard.

Sports Court
Further into the property, along the edge of the private road leading to the house, sits a massive sports court designed for versatility.
The space can easily transform from a tennis court to a basketball court, or even two pickleball courts, depending on the game of choice for the day.

Helicopter Landing
On the other side of the road, tucked behind a cluster of trees and greenery, lies a private helicopter landing pad.
It’s set against the sandy shoreline of the estate’s private beach, offering both convenience and a dramatic entrance to the property’s secluded coastal setting.

Additional Structures
Lastly, scattered across the estate are separate structures that extend the property’s versatility beyond the main house.
A spacious guest house provides five additional bedrooms, along with a gathering room and full kitchen to comfortably host family or friends.

Closer to the water, a beach bungalow has been reimagined as a private gym, blending fitness with the property’s resort-like atmosphere.
Full Video Tour
For a more complete look around Altman’s entire property, watch the full video tour from Aloha Sotheby’s International Realty.
The walkthrough captures the small details that bring this island property to life, from waves crashing along its edges to the way the estate transforms as day turns to night.
Sam and Oliver’s Wedding
Of course, this property hasn’t only made headlines for its beauty but also for the role it played in Sam Altman’s personal life.
It created the perfect backdrop for his intimate wedding with Oliver Mulherin, a moment captured in an Instagram post shared by India Today.
Final Thoughts
For Sam Altman, this Kailua-Kona estate has served as the backdrop to one of the most important moments of his life: his wedding.
Even as he prepares to part with it, the home remains tied to those memories, a place where personal milestones unfolded against the sounds of the ocean.
With its sweeping acreage, private beachfront, and array of resort-style amenities, the estate now presents a rare opportunity for its next owner to create a legacy of their own.