28°-50° Wine Workshop and Kitchen in Marylebone Lane has been sold after owner Texture Restaurant Group received an offer that was "too good to refuse".
The group had previously sold its sister restaurant in Fetter Lane, Farringdon, to Clifford's Restaurant in June this year, with the brand's third site 28°-50° Maddox Street under offer.
The Marylebone Lane site will operate under new management from 1 December retaining its name and concept, but with no involvement from former chef patron and owner Aggi Sverrisson.
Texture Restaurant Group was founded in 2007 by Icelandic-born chef Sverrisson and sommelier Xavier Rousset with the opening of Icelandic restaurant Texture on Portman Street.
The pair met while working at Le Manoir aux Quat'Saisons in Great Milton, Oxfordshire, and opened the first 28°-50° wine bar and restaurant in 2010 before a second site 28°-50° site opened in 2012 in Marylebone Lane, followed by a third on Maddox Street in 2013.
Rousset left the business in 2015 and subsequently opened Blandford Comptoir on London's Blandford Street in May 2016, followed by Cabotte with fellow master sommelier Gearoid Devaney in September.
Sverrisson has said he will continue to focus on Michelin-starred Texture.