Tommi's Burger Joint is set to re-open in a permanent home on London's Thayer Street later this month.
The Icelandic-based burger restaurant, created by Tomas Tómasson, launched its first UK venture in August 2012, at a temporary site in Marylebone Street. It has six sites in Iceland.
The restaurant in London will be led by head chef Siggi Gunnlaugsson, who relocated to the UK to launch the first site last year.
The 30-cover burger joint will have an "informal, vintage feel", offering a selection of burgers including a vegetarian option. Meat will be supplied by HG Walter butchers in Barons Court, and bread from Millers Bakery.
The burgers will be cooked on an American gas grill to enhance the charcoal flavour, and garnished in the classic diner style with iceberg lettuce, tomatoes, chopped onion and Ketchup.