The restaurant, which has traded for the last 14 years from its site in Albemarle Street in Mayfair, closed its doors on Monday (20 June).
Co-owner Janina Wolkow plans to re-open the restaurant in October at 165 Sloane Street in partnership with former F1 boss Flavio Briatore with whom she runs Sumosan at Billionaire's Mansion in Dubai and summer restaurant Twiga Sumosan in Monaco.
In line with the sister concepts, the new three-storey restaurant will combine Sumosan’s Japanese food with a menu of classic Italian dishes.
One 150-cover restaurant will operate on one floor while another restaurant and bar accommodating 180-covers will operate across another two levels.
Contemporary Japanese concept Sumosan was launched in Moscow in 1997 by Alexander Wolkow. His daughter Janina launched Sumosan London in 2002 and continues to run the business.
In April Wolkow partnered with Briatore to open Sumosan at Billionaire's Mansion, a collection of five different restaurants, bars and nightclubs on a floor of the Taj hotel in Dubai.