It is understood that the company has signed up to take a unit at the St James’s Market development at 52 Haymarket, according to BigHospitality's sister site MCA.
Samba Brands opened the first UK Duck & Waffle on the 40th floor of the Heron Tower in Bishopsgate in the summer of 2012.
The company is set to open a restaurant in London’s Mayfair later this year, under the name Raw & BBQ.
Samba Brands secured the site 11 Berkeley Street last year for the concept, which will specialise in raw and barbecue cuisine.
Earlier this year, the company confirmed it will replace Brasserie Blanc at Covent Garden’s Opera Terrace.
The new restaurant, on which Samba Brands is investing £4m to design and develop, will be the group’s second Sushisamba in the UK and will open early next year.
Samba Brands opened its first restaurant in the capital on the 38th floor of 110 Bishopsgate in the Square Mile.