In 1936, he designed the Golden Heart, Spitalfields, a Grade II listed public house at 110 Commercial Street, London, E1 6LZ, for Truman's Brewery. In 1936–37, he designed The Green Man in Kingsbury, north London. In 1937, he designed the Duke of Edinburgh at Brixton. Several of the pubs designed by Sewell have been listed by Historic England and four pubs designed by him were included in the 19 inter-war pubs listed in August 2015.