[1] He was born in Throndhjem[2] as the son of Christian Martin Eckhoff and his wife Nicoline Johanne Luytkis.
[4] He attended the Royal Drawing School, now the Norwegian National Academy of Craft and Art Industry, in Oslo.
After returning from Copenhagen he was hired as an assistant at the National Academy of Craft and Art Industry.
He then took various assignments in Christiania from 1860 to 1862 and in Nordland from 1862 to 1866, before the city fire in Drammen created opportunities for work there.
[5] Eckhoff was inspired by many styles, including historicism,[2] gothicism, neo-Gothicism and Art Nouveau.