Kensington Palace Gardens, London, U.K.
Photo: worldlifestyle
Russian billionaire Roman Abramovich has a long list of ultra-luxurious properties located all over the world. One of which is located on the famous “billionaires row,” in the Kensington Palace Gardens in London. This mega mansion has an estimated value of $230 million after a long list of renovations that apparently increased the square footage from around 20,000 up to almost 30,000.