Dubbed the “nation’s most avid trophy-home buyer” by The Wall Street Journal , Oracle co-founder Larry Ellison is no stranger to the real estate market. Ellison is the seventh-richest person in the world, with a net worth of more than US$55 billion, according to Bloomberg’s Billionaires Index. When asked in 2012 why he would buy more homes than he could possibly live in, Ellison referenced his love of art. What’s it like to stay at Four Seasons Lanai in Hawaii “I’m going to start these art museums that are basically converted homes,” Ellison told CNBC in 2012. “I have one for modern art, and I have one for 19th-century European art, and one for French impressionism.” Although his 2012 purchase of the Hawaiian island of Lanai has been his largest single investment, he has made a number of blockbuster purchases over the past two decades in Silicon Valley, Lake Tahoe and Japan. Here are all the houses and properties belonging to the co-founder of Oracle: Ellison bought this US$3.9 million home in San Francisco’s swanky Pacific Heights neighbourhood in 1988. Ellison owns a 10,000-square-foot mansion, designed by architect William Wurster, with four levels and five bedrooms. The Pacific Heights neighbourhood, known as “Billionaire’s Row”, is also home to fellow tech moguls such as Zynga founder Mark Pincus, Apple designer Jony Ive and Yelp CEO Jeremy Stoppelman. News outlets reported that Ellison had planned to buy the home next door for US$40 million so he could cut down his neighbour’s trees that were blocking the view from his home. However, the sale did not happen. 5 things to know about billionaire Forrest Li's shooter game Free Fire His 23-acre estate in Woodside, California, is modelled on a 16th-century Japanese imperial palace. Ellison bought the property in 1995 for US$12 million. It reportedly took nine years and US$200 million to design and renovate the Woodside home, and was completed in 2004. Ellison also once owned an equestrian compound, not far from his Woodside estate, which he bought for US$23 million in 2005. He put the property up for sale in 2011. Ellison took a markdown for the estate, which he listed at US$19 million. The two-part property spanned almost seven acres, and had a barn for horses, a beach volleyball court and a pool. In nearby Palo Alto, Ellison owns the Epiphany Hotel, which he bought for US$71.6 million in 2015. While Ellison still owns the hotel, it has been managed by Nobu Hospitality since 2017 under the name Nobu Hotel Epiphany. The hotel is under renovation, and will open in 2020 with 73 rooms equipped with Alexa virtual assistants that cost US$600 to US$900 a night. Ellison owns as many as two dozen properties in Malibu, California, including at least 10 on a stretch of Carbon Beach known as “Billionaire’s Beach”. He has spent an estimated US$200 million to US$250 million on Malibu properties. Ellison has steadily been buying properties in Malibu since 2002. He paid US$18 million for producer Jerry Bruckheimer’s house in 2013, and US$48 million for a five-bedroom home that once belonged to the late real estate developer Norman Ackenberg. François Pinault pledges US$113 million to rebuild Notre Dame Some of his Malibu homes, such as this 2,800-square-foot oceanfront cottage, are available to rent. In 2015, the home was available to rent for US$65,000 a month with a US$35,000 security deposit. In 2004, Ellison paid US$17.6 million for a Carbon Beach property now home to Nobu, a 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. In 2007, Ellison purchased the historic beachfront Casa Malibu Inn for US$20 million. 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 chain. Why Mark Zuckerberg’s worth rose US$9 billion each year The hotel is in the style of a ryokan, a traditional Japanese-style inn, with rooms overlooking the ocean that feature soaking tubs. Rooms cost around US$2,300 a night. Ellison added to his real estate portfolio in Malibu in 2018 with a US$38 million purchase of a beachfront house from movie producer Joel Silver. The property has seven bedrooms and eight bathrooms, as well as a detached guest house with another two bedrooms and two bathrooms. Ellison, an avid tennis fan, bought the Malibu Racquet Club for US$6.9 million in 2007. The facilities have been vastly 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 – you have to score an invitation to become a member. Ellison capitalised on his love for tennis in 2009, when he bought the Indian Wells Tennis Garden, home to the professional BNP Paribas Open tennis tournament. The property is located just outside Palm Springs, California. Since buying the property and the tournament for US$100 million, Ellison transformed the facilities to accommodate additional courts, bigger stadiums and more room for those attending the tennis. Why Mark Zuckerberg buys up properties around his 10 homes Ellison also owns a private golf club spanning almost 250 acres in Rancho Mirage, California. He bought the property for US$42.9 million in 2011. 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 also owns numerous properties along picturesque Lake Tahoe. He sold this home on Lake Tahoe’s east shore for US$20.35 million in 2014. The property in Glenbrook, Nevada is more than 2.6 acres and has 13 bedrooms, a screening room, a library and a sauna. Ellison bought it in 2006, but decided to sell in favour of properties in Lake Tahoe’s Snug Harbor and Incline Village. Why Mark Zuckerberg chose to ‘kill what you eat’ and Jeff Bezos ate octopus Ellison has a number of properties in Incline Village, Nevada, an affluent neighbourhood on Lake Tahoe’s north shore favoured by billionaires. He is estimated to have spent US$102 million on properties here. The 7.6-acre property has a private beach and two private piers, a tennis court, and a pool and spa. Houses on the estate include a cottage, a writer’s cabin, a beach house and a guard house. In 2017, Ellison bought the iconic Cal Neva Resort – once owned by Frank Sinatra – in North Lake Tahoe for US$35.8 million. The 10-story lodge, hotel and casino was once frequented by Marilyn Monroe and Judy Garland. Ellison is reportedly gearing up to renovate the property, which was built in 1926. On the east coast of the United States, Ellison owns properties in ritzy Newport, Rhode Island. In 2010, he paid US$10.5 million for the Beechwood Mansion, an estate he spent more than US$100 million on to turn it into an art museum. The historic Beechwood Mansion once belonged to the Astor family, and is still under renovation to become an art museum housing Ellison’s personal collection of 18th and 19th century European art. After buying the Beechwood estate, Ellison purchased three surrounding properties on Newport’s Bellevue Avenue. Ellison bought the nearby Seacliff home for US$11 million in February. The Seacliff property has a total of 10 rooms and five bedrooms. By purchasing these four neighbouring Bellevue Avenue properties, Ellison’s Newport estate now spans nine acres. Why you don’t have to be super-rich to own a private island Ellison owns a historic garden villa in Kyoto, Japan, which was reportedly listed for US$86 million. 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. In 2012, Ellison paid a reported US$300 million to buy 98 per cent of the Hawaiian island of Lanai. The land 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. One of two resorts on the island, the Four Seasons Resort Lanai, reopened in February 2016 after a months-long renovation. 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 18-time Major 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 more than US$41 million on the additional homes. 7 Hong Kong homes for modern millionaires Included in his purchase of the island was the Lana’i Animal Rescue Center, which is reportedly home to about 400 feral cats. Many of the cats were rescued from the dump and other sites near the Four Seasons, according to a Buzzfeed News feature on the centre. Want more stories like this? Sign up here . Follow STYLE on Facebook , Instagram and Twitter This article originally appeared on Business Insider .