The 12-cover 26 Grains will open in May within a 249 sq ft site opposite Compagnie des Vins Surnaturels and close to the recently-opened Free Range People.
Hely-Hutchinson, who experimented with her porridge-led venture through a series of pop-ups in London, said: "We have had a fantastic response to our brand so far and I believe that we can really take it to the next level. Neal’s Yard is a dream location for us and we are thrilled to be in among the great mix of dining brands and retailers here."
26 Grains will serve porridge, muesli, granola, risotto and salads from 8am to 5pm. The cafe, which only has a one-year lease, will also host evening events in conjunction with other local businesses, such as food workshops and supper clubs.
Charles Owen, Seven Dials Portfolio Manager at Shaftesbury, said: “26 Grains and Free Range People are two distinctive additions to our dining mix. Signing brands such as these is an important part of the heritage of Seven Dials, which, as well as being home to leading international brands and their flagship stores, also has some of the most interesting dining concepts in London.”