Born in Bristol, Fedden studied painting with Herkomer at Bushey and at Julians Atelier, Paris. He travelled and exhibited widely at Paris Salon, Venice International, North Africa, Munich and New York. He lived at Burford, Oxfordshire and then at Rye. East Sussex. During WWI he served in the armed forces.

In a prolific exhibiting career, he showed his work in all of the major galleries but especially the Walker Gallery, London, where he displayed over 435 paintings of varied landscapes.

His association locally was with St Ives. He also spent some time in Polperro, where in 1907 he and his friend Herbert Edward BUTLER established a school of painting. Later that year Fedden married an American writer, Katherine Waldo Douglas, with whom he subsequently moved to France.