Number 12 The Painted Canvas Store (Mo 46)

Number 12 The Painted Canvas Store is a house that has been converted into a store, dated 1777 on a hopper and altered in the mid-20th century. It is constructed of limestone ashlar with rubble on the sides and rear, topped with a corrugated sheet roof. The building has a single-depth plan and stands two storeys tall with a five-window range. It features a double-fronted design with rusticated quoins, a plat band, and raised surrounds around a heavy cross-boarded door. The first floor has horned 2/2-pane sash windows, while the ground floor has 6/6-pane sashes. A notable lead hopper head is located to the left of the entrance. The sides and rear are windowless and lack dressings.

Inside, the fittings and roof were altered in the mid-20th century. This building is one of a pair of matching houses, alongside the former Furbisher's Shop attached to Store No. 2. It was part of the expansion of the dockyard in the 1770s, following the formal plan established in the 1720s by Colonel Lilly. It is recognized as part of the best surviving 18th-century naval ordnance yard in the country.