Badmin was born in London and studied at Camberwell School of Art and the Royal College of Art, which he left in 1928. Known for his details and affectionate depictions of the English countryside and his poster and illustration most notably for Shell Oil. At the age of 26 he became on the youngest ever members of the Royal Watercolour Society and was also a member of the Royal Society of Engravers. He exhibited at the Fine Art Society, Leicester Galleries and elsewhere. The Victoria & Albert Museum and British Museum hold examples of his work. He lived in Bignor, Sussex.