When the lighthouse was constructed, an additional small structure was built next to it. This building was originally used as a storehouse for oil, wood, and other supplies. However, in 1875 part of it was converted into a two-room apartment for the assistant lighthouse keeper. It was built with rough lumber and the inside was lined with cloth and paper, since cracks would frequently develop in the walls. This thin lining was later replaced with tongue and groove boards. More repairs must have been made in 1880 for the structure was still being used as a living space for the assistant.