A three-storey L-shaped building of coursed limestone with red-brick arches to the window heads (each with stone keystones) and a slate roof. An iron crane is still fixed to the top storey of the gable end wall facing the street.

'Captains' probably dates from the early or mid-19th century. Initially it was used as a handloom weaving establishment, with storage and warehousing on the upper floors. It was still shown as a ‘Blanket Factory' on the 1899 Ordnance Survey map, but it was later used as a warehouse. It has now been converted into housing.

The origin of the name is not known, although a Captain G.N. Nowell was recorded as living next door at 34 West End in the 1901 census.