The Lower Mill was built in 1834 by Edward Harbord, 3rd Baron Suffield, whose estate adjoined the new canal and who had had a staithe built on the canal in 1829. It is probable that Harbord was a shareholder in the canal project, as he had made extension of the canal to Antingham a condition of his support to encourage economic development in the area. Bones for grinding into fertiliser were delivered by wherry to a staithe which was long and wide. The staithe was midway between the two mills. After the coming of the railways, bones were also delivered to North Walsham railway station. The ground product was sold to Fisons for use in fertilisers. Although the canal was not used after 1893, the mill continued in use until the 1920s, and the buildings were demolished after the Second World War. The Lower Mill was much larger, and was built after the canal opened. It had two storeys and was long. The channel between the two mills was filled in around 1905, and the mill was not powered by water after that time. It was then powered by a Crossley gas engine, which used anthracite and coke, some of which was made from coal on the site. Milling ceased in 1935 or 1936, and the mill was demolished in 1958.