Former Dalmarnock Ironworks, 73 Dunn Street

For William Arrol and Co, 1871, 1889 and later additions. Two-storey, 31-bay (four-bay return) rectangular-plan block with three-storey and later attic, six-bay block (former shuttle factory) abutting to right; part of remaining buildings of the former William Arrol's Dalmarnock Ironworks complex; large steel-framed, rectangular plan workshop to rear. Red brick in English Garden Wall bond. Yellow brick eaves course with dentilled cornice to two-storey section; moulded eaves course to three-storey section with recessed glazed attic storey and cast-iron balustrade above. Later corrugated metal to workshop (cladding over brickwork of north elevation). Round-arched openings at ground floor; shallow-arched openings at first and second floors with projecting cills. Large rectangular opening to far right of two-storey section with steel I-beam lintel and roller garage door. Lower portion of ground floor openings to centre replaced with rectangular openings. Single rectangular opening to north elevation under second window to right at ground floor.

Interior: (seen 2010) foreman's office at first floor with vertical timber boarded walls to workshop and some six-pane cast-iron framed windows, accessed via replacement steel staircase. Open, steel-framed interior to workshop, with replacement Arrol Five Ton travelling crane and post cranes. Predominantly 32-pane, cast iron frame windows. Grey slates to piended roof at two-storey section. Flat roof to former shuttle factory. Later corrugated, plasticised sheeted roof to workshop.