Port Dundas Sugar Refinery, 40-50 Speirs Wharf, Port Dundas, Glasgow

The Port Dundas Sugar Refinery, built in 1866, is a former industrial building that has been converted into flats as of 1991. It features a seven-storey and basement structure with a 15-window late classical ashlar facade facing the canal. The central three windows and the end pairs are slightly advanced, with channelled ground floors. The central three windows are topped with a pediment, while the end pairs have raised parapets. There are cill band courses on the first, second, and fifth floors, and segment-headed windows throughout, with smaller bipartite windows on the seventh and ninth floors. The outer first-floor windows and doorways of the central sections are corniced, and the central windows are positioned at half levels.

The north-west angle of the building is splayed and features built-up recessed loading doors at all levels. The north gable retains two-thirds of its original stonework, with the remaining third being later brickwork that deepens towards Craighall Road. The rear of the building is constructed of cranked red and white brick, divided into four sections of one to seven bays, with a dormer at the fourth bay. It has a main cornice and parapet, and the base of the chimney is located at the north-east angle. This part of the building is set back from the street behind a two-storey frontal structure that is arcaded at both levels, also made of red brick with white brick dressings and topped with piended slated roofs. The lower floors are supported by massive cast-iron columns with jack arches, while the upper floors feature timber floors on cast-iron columns.