Former Offices and Remains of Foundry of Harvey and Company

The former offices and remains of the foundry of Harvey and Company are located in Hayle and date from the late 18th century to the early to mid-19th century. Built by Harvey and Company, the structure has been altered in the late 20th century. It features a stuccoed stone and boarded timber frame with a hipped grouted scantle slate roof and a brick axial stack. A slate-hung clock turret is positioned left of center, topped with a pyramidal roof and gablets over each clock face.

The building has an L-shaped plan, with the main office range incorporating a late 18th-century foundry entrance, furnaces, and a limekiln. A rear right-hand wing was added in the early to mid-19th century as a drawing office. The exterior is two storeys high, with a four-window north front that includes a large round-arched carriage doorway beneath the right-hand window. There is a window in each center bay, while the left-hand bay on the ground floor is blind. The first floor retains original 12-pane hornless sash windows, including one on the left-hand return. The ground floor features early 20th-century windows, and the left-hand return wall has a wide shop window.

At the rear, the weatherboarded drawing office wing is raised on iron posts and has large 12-pane sash windows. Inside, there are substantial remains of the original 18th-century foundry, including a furnace, a lime kiln, and part of the original yard with cobbles and a drain. There is a small part of the original office, but mainly pre-1845 offices and a pre-1888 drawing office supported on cast-iron posts. The interior also includes two large iron-plated armoured strong rooms supported on cast-iron piers, featuring cast-iron panelled doors, and another strong room made of Barlow rails. A granite cantilevered staircase leads to the office, with a cast-iron balustrade, and there are tiled lavatories. Part of the first floor of the main range has been removed, and the main front range has a king-post roof. The clock in the turret over the main range was made in 1893 by John H. West of Hayle and features an illuminated dial.