Students' Union, University Of Glasgow, University Avenue, Glasgow

The Students' Union at the University of Glasgow, designed by John James Burnet (Burnet, Son and Campbell) in 1886, 1893, and 1908, is an English collegiate Gothic style building. It has a rectangular plan surrounding a central covered courtyard and stands two stories high, featuring a three-stage northwest tower. The exterior is constructed of squared and snecked stugged sandstone, with polished ashlar dressings and window mullions.

The main hall, located at the eastern end and built in 1886, is oriented from south to north. It has two six-bay, two and four-light windows with stone mullions and transoms, showcasing plate tracery with cusping on the upper windows at the southeast and north, as well as on the smaller windows. Gables are present on the north, southeast, and south sides, with the latter added in 1903 and featuring a stack. There is a canted bay with stepping above the first floor on the south elevation, and a bellcote is positioned over the south end.

The elevation facing University Avenue, completed in 1886, maintains a continuous design with the hall and consists of nine bays arranged in a 5-2-2 pattern. The central five-bay range connects the tower to the hall, with four-light stone mullioned and transomed windows on the ground floor and tripartite windows above. The squat three-stage tower to the left has an elliptically arched entrance with relief panels above, flanked by two plain tripartite windows. Above, there are two tripartite cusped windows with raked cills and a single central bipartite window on the first floor. At the northwest corner, there is a two-bay gatekeeper's lodge with irregular fenestration of varying sizes, a dormer, and a crow-stepped gable facing University Avenue. The entrance to the lodge features an elliptically-headed panelled timber door to the left, while the arched carriage entrance has an elliptical central entry flanked by pedestrian arches and a stepped parapet.

The elevation to the west, constructed in 1893, features a 2-2-2 bay arrangement with the two southern bays projecting and a central two-bay outshot, including tripartite and bipartite windows. The southern elevation, added in 1908, consists of a five-bay section linked to the main hall, with tall 15-light windows on the ground floor and smaller four-light windows on the second floor, along with an arched entrance at the southeast.

The interior, as seen in 2010, retains numerous original features, including decorative plasterwork, timber panelling, stair balustrades, stained and leaded glass, and open braced timber roof structures.