3, Diamond Street

No. 3 Diamond Street is a factory that has been converted into offices, likely originally built as a warehouse around 1875. It features polychrome brick with some ashlar dressings and is designed in an early Italian Renaissance style. The building stands three storeys high with a three-window range. The narrow central bay includes a shallow brick porch supported by pilasters, which hold up the ashlar springers of a round arch beneath a herringbone-brick gable with stone coping. The entrance consists of a six-panel door with a semi-circular overlight. To the right of the door, there is a wide vehicle entrance with a painted lintel. The left side features a two-light window with polychrome brick voussoirs and a bracketed ashlar sill, along with a central barleysugar shaft that has a crocket capital supporting an overlight with Romanesque glazing bars. The first floor windows are treated similarly, with the central window being a single sash. Dark brick courses link the heads of these windows. The second floor has smaller sashes, paired in the outer bays, featuring a chequered brick impost band and bolder colour bands in the voussoirs. A coloured Lombard frieze runs between the end-brick kneelers, supporting a renewed eaves gutter. The right return gable is brick, while the left return gable is rendered. The interior has not been inspected. Historically, until 1875, the Saltburn Improvement Committee required white firebrick for frontages. Minutes from the company show approval on 8 November 1875 for a shop, house, and warehouse for William Clayton in Milton Street, which may refer to this warehouse, located behind No. 21 Milton Street, sharing similar materials and style.