Brass Foundry (Building Number 1/142 East End (Psto (N) 34 Store)

The Brass Foundry, also known as Building Number 1/142, is an iron and brass foundry that has been converted into a workshop. It was built in 1848 by Captain H. James of the Royal Engineers, with a traveller road added in 1888. The building is constructed of red brick in English bond, featuring a granite plinth and Portland ashlar dressings. It has a corrugated iron hipped valley roof with ridge vents.

The foundry has a square plan and is single-storey, consisting of seven parallel hipped-roofed ranges that create elevations of seven by seven bays, with an additional bay added in the same style at the west end. The exterior includes a plinth and round-arched arcades that frame large small-pane cast-iron windows, most of which were replaced in the mid-20th century. The north side and both ends have doorways set one bay from the ends, featuring fanlights and metal doors, along with keystones and projecting blocking courses. There is an impost band, eaves cornice, and a blocking course raised over the doorways.

Inside, the building has a wrought-iron roof supported by angle struts and vertical round-section ties. The former traveller road contains cast-iron traveller supports inscribed with "JA BALDY IRON FOUNDER/LNDPORT/1864."

Historically, this foundry was used temporarily for iron-founding before the adjacent iron foundry was built in 1857. Originally, it housed brass furnaces along the central partition wall, which were vented by four central chimneys on iron frames, as well as two iron cupola furnaces and casting pits in the foundry section. The building, along with James' No. 2 Ship Shop and Greene's Iron Foundry, played a crucial role in the dockyard expansion of the 1840s, allowing the yard to accommodate the new steam-powered ships that the navy began to use.