Allen Glen's Secondary School, St James Road, Glasgow

The building comprises a late 19th and early 20th century Board School designed by Burnet, Boston and Carruthers, dated 1906, along with a janitor's house and associated gatepiers and railings. The main school building is a four-storey structure with a basement, constructed of squared and snecked pink sandstone with ashlar dressings and details, and rock-faced base courses. It features stepped facades and a dentilled cornice.

The South elevation has thirteen bays, with the central seven bays projecting. An 'Infants’ doorway is visible, featuring a carved segmental pediment at terrace level in the outer right bay of the central section. A plain frieze juts out below the top floor. The centre of the first floor displays a swagged panel, with a crest flanked by engaged Doric columns.

The North elevation is six bays wide, with the central four bays projecting. The main entrance is located in the outer left bay of the central section, under an arched aperture with a fanlight. This is flanked by engaged Ionic columns, and an entablature is inscribed with the word "Boys". Below this is an arched arcade with three triforate windows on the ground floor. A jettied frieze below the third floor is inscribed with 'School Board of Glasgow'.

The East elevation has seven irregular bays, the central one containing an entrance flanked by fluted Ionic pilasters, with a segmental pediment bearing the inscription "Girls" in the tympanum. A single-storey projection runs out to the left of the entrance.

The West elevation also has seven irregular bays, but the entrance on the left side of the centre has been obscured by a later brick porch. A blank jettied frieze is present below the third floor, to the left. The school has timber framed sash and case windows with plate glass, replaced from the originals. External doors are of timber, panelled construction. The roof is covered with grey-green slate.

Internally, the school follows a typical Glasgow School Board school layout, with stairs at the East and West converging on galleries around a central light well. The light well is lit by skylights on arched timber rafters. The stone stairs have iron balustrades and wooden rails, while lower floor stairs have timber balustrades. Walls along the stairways are lined with white ceramic tiles. Classrooms and halls are separated by glazed timber partitions, with glazed timber doors, and floors are of timber.

The janitor's house is a two-storey rectangular building with a hipped roof and exposed rafter ends. It features an oriel window with a slate roof on the East elevation and a cornice above the entrance on the South. Chimney stacks are narrow and irregular. The exterior is of droved sandstone with ashlar dressings and massive ashlar base courses, and the roof is covered in grey-green slate. Window and door apertures were blocked in 2010.

Three pairs of ashlar gatepiers are positioned along St James’ Road, some retaining moulded coping. A single pair of gatepiers exist to the South. Simple iron gates and railings are mounted on dwarf walls, with saddleback coping, to the North and South, and around the janitor’s house. A terrace and retaining wall are located to the South.