Lang's Bar, 73 Queen Street, Glasgow

Lang's Bar, located at 73 Queen Street in Glasgow, is a restrained classical tenement building designed by Robert Black around 1830. It is a four-storey, twelve-bay structure with a symmetrical facade above ground, constructed from painted ashlar. The court pends are asymmetrically placed to the left of center and far right of center. The shop fronts at ground level have been altered, featuring an Art Deco frontage for Nos 73-75.

The six central bays are slightly advanced and topped with a balustraded parapet, which is interrupted by round arches and end dies. There is a cornice above the ground floor and a main cornice, along with a cill course at the second floor. The first-floor windows have raised margins, with consoled pediments above three windows to the left of center, while the three on the right have been removed. The cornices are retained for the six central windows at the second floor.

The South Exchange Court, which includes Nos 1-4, is simpler than the other court. The south side features eighteen bays and is three storeys high with a basement. It is also made of ashlar, channelled at the ground level, and has three doorways with steps and consoled cornices. The first-floor windows in the three penultimate bays on either side have architraves and cornices. There is a cornice at the ground floor, matching the cill course of the first floor, and a main cornice above. A slightly recessed bay to the east contains a stairwell leading to the Queen Street offices. The rear is blank, with two windows facing Springfield Court.

The north side has seventeen widely grouped bays that form the rear of the Royal Exchange Court. The Royal Exchange Court, which includes Nos 1-5, has its name incised over the pend on Queen Street. The south side of this court consists of twenty-one bays and is also three storeys high with a basement. It features channelled ashlar at the ground level, with a cornice that matches the cill course of the first floor and a main cornice above. Each seven-bay block has pilastered doorpieces at the center, with outer corniced pediments, each with steps. The ground floor windows are shallow segmental arches, while the three central first-floor windows of each block have consoled cornices. The rear faces South Exchange Court, and there is a recessed bay to the east with a stairwell to the Queen Street offices.

The north side has seventeen bays and features the rear elevations of 5-19 Royal Exchange Square, with an off-center pend to the east. It is channelled ashlar at the ground level, with a cill cornice at the first floor. There is a variety of glazing patterns, including small-pane and plate-glass forms in sash and case windows. The building has wallhead and mutual gable stacks, and it is roofed with slates.