Oracle billionaire Larry Ellison's incredible real estate portfolio includes properties in Silicon Valley, Japan, Hawaii, and more

Ellison owns a 10,000-square-foot mansion, designed by architect William Wurster, with four levels and five bedrooms. The Pacific Heights neighborhood is known as "Billionaire's Row," and is also home to other tech moguls like Zynga founder Mark Pincus, Apple designer Jony Ive, and Yelp CEO Jeremy Stoppelman.

Several news outlets reported Ellison planned to buy the home next door for $40 million so he could cut down his neighbor's trees blocking his home's view. However, the sale didn't happen.

Ellison first purchased the property in 1995 for $12 million. It reportedly took nine years to design and renovate the Woodside home, and it was completed in 2004. It's said to be modeled after a 16th-century Japanese imperial palace.

The assessed value of 11 of the Malibu properties linked to Ellison over the years is over $180 million, according tax documents viewed by Business Insider.

Since 2002, Ellison has steadily been buying up properties in Malibu. In 2013, he paid $18 million for producer Jerry Bruckheimer's house, and also paid $48 million for a five-bedroom home that once belonged to the late real estate developer Norman Ackenberg.

The property has seven bedrooms and eight bathrooms, as well as a detached guest house with another two bedrooms and two bathrooms. Real estate magazine The Real Deal dubbed Ellison "his majesty of Malibu."

In 2010, he paid $10.5 million for the Beechwood Mansion, an estate he spent more than $100 million on to turn into an art museum. The historic Beechwood Mansion once belonged to the Astor family and was open to the public for tours until Ellison's purchase.

It became an art museum housing Ellison's personal collection of 18th and 19th century European art. There are also at least three other properties near Beechwood Mansion that have been linked to Ellison.

The total amount he's spent on properties here is estimated at $102 million. The amenities include a private beach and two private piers, a tennis court, and a pool and spa. At least three properties are owned by limited liability companies with the same California address that has been linked to Ellison.

The property is located on the grounds of Nanzen-ji, a Zen Buddhist temple in Kyoto. Ellison told CNBC in 2012 that the property will eventually become a Japanese art museum.

He transformed the property into a Japanese concept hotel called Nobu Ryokan Malibu, which opened in April 2017.

To build the 16-room high-end hotel on Carbon Beach, Ellison teamed up with actor Robert De Niro, film producer Meir Teper, and Chef Nobu Matsuhisa, the mastermind behind the Nobu sushi chain.

The hotel is in the style of a ryokan, a traditional Japanese-style inn, with rooms overlooking the ocean that feature soaking tubs. Rooms are available for around $2,300 a night.

Previously owned by Yellowstone Club founders Tim and Edra Blixseth, the Porcupine Creek golf club includes a main house with a whopping 16 bedrooms, in addition to several separate guest houses. Ellison bought the property for $42.9 million in 2011. It was once his own private golf club, but Sensei Porcupine Creek Club is now open to the public for over $1,000 per night, Golf reported.

The golf publications also reported that it's the most expensive golf club in California.

While Ellison still owns the hotel, it's has been managed by Nobu Hospitality since 2017. The hotel was under renovation in 2019, and eventually rebranded as Nobu Palo Alto.

The facilities have been improved since the purchase with the addition of new tennis courts. Tennis pros Victoria Azarenka and Serena Williams have been spotted here.

The club is incredibly private, and the initiation fee is between $9,000 and $14,000.

The property is located just outside of Palm Springs, California. Since buying the property and the tournament for $100 million, Ellison transformed the facilities to accommodate for additional courts, bigger stadiums, and more room for attendees. It has an assessed value of over $152 million, according to public records.

Nobu is an ultra-trendy chain of Japanese restaurants popular among Hollywood A-listers. Ellison also bought the property right next door, where he opened a Mediterranean restaurant in 2013 called Nikita (named after his girlfriend Nikita Kahn). However, Nikita closed in late 2014, while Nobu Malibu remains successful.

The island includes 90,000 acres of land, 3,2000 residents, and two Four Seasons resorts. Since purchasing the island, Ellison has bought two airlines, refurbished the island's hotels, and started investing in clean energy sources. He plans to use the island as an experiment for environmentally sound practices.

According to public tax documents, there are over 400 parcels of land owned by Ellison's Lanai Resorts LLC.

The renovated hotel includes a Nobu restaurant and over 200 hotel rooms. The resort has designer boutiques, an "adults-only retreat" with waterfalls, and an 18-hole golf course designed by legendary champion Jack Nicklaus.

In February 2014, Ellison purchased more residential properties near the other Lanai hotel, the Four Seasons Resorts Lanai at Manele Bay. He spent a little more than $41 million on the additional homes. The Four Seasons Resorts Lanai has an assessed value of over $214 million, public records show.

Many of the cats were rescued from the dump and other sites near the Four Seasons, according to a Buzzfeed News feature on the center.

Additional reporting by Madeline Stone.