 He owns a grade II listed building in Kensington Palace Gardens which is valued at £200 million  as well as a residence in Manhattan valued at more that $250 million.Blavatnik is a friend of Israeli Prime Minister Benjamin Netanyahu.Blavatnik is also a longtime friend and business partner of Ukrainian-born Russian oligarch Viktor Vekselberg, one of Russia's richest men, who is close to Russian President Vladimir Putin.