This is the massive mega mansion of Russian businessman Timofey Klinovsky.
He is one of the largest land owners in Moscow and one of the Infamous "Oligarchs", taking advantage of the "loans for shares" scheme in the early 1990s.
Timofey bought up shares of the old Gorki-2 state farm. He paid an average of 120 rubles per acre of land to former workers of the farm who were the primary share holders (current market value is about 100,000,000 rubles per acre).
He owns a large development company that sells a lot of the plots of land in this prestigious area of Russia.