Designed Promotion Hall in Japan, one of Hiroshima's largest buildings the ruins of which became known as the Hiroshima Peace Memorial or A-Bomb Dome.
He was educated at the Higher Vocational School's construction department in 1899. He was awarded a scholarship to the School of Applied Arts in Prague, where he was a student of Jan Kotera, one of the founders of modern Czech architecture.
He was devastated to see many of his structures in Japan destroyed by the 1923 Great KantÅ earthquake.
He was born to hotel owners Jan Letzel and Walburga Havlicek.
He was a contemporary of the famous Frank Lloyd Wright.