Brannigan's including forecourt walls and railings

Brannigan's, including the forecourt walls and railings, is a late 19th-century building designed in the "Queen Anne Style." It features pressed red brick and terracotta construction with slate roofs and tall moulded red brick stacks. The ornate elevation facing Park Place consists of two storeys and an attic, arranged in five bays. The outer pairs of bays project slightly and are topped with gables in the attic storey, which are decorated with pilasters, swags, and ball finials. Each gable contains paired attic sash windows set within an arch, while the first and ground floor windows are similar but include transoms. The first-floor windows are flanked by panelled pilasters, with mock machicolation above them. The central bay has a blind opening adorned with panels featuring swags and cartouches, along with a date plaque above the ground floor cornice. The ground floor windows are also flanked by panelled pilasters with plant motifs. A central ground floor doorway is recessed behind a tall segmental arch with a keystone and a modern canopy. The side elevations are simpler, with a modern conservatory on the right.

The library extension on Greyfriars' Road has a two-storey elevation with six bays. The first floor features an entablature with a moulded frieze and modillions, with a paired sash window in each bay. The central two bays have quoins and are topped with a triangular pediment that has finials bearing the date 1907. The flanking and end bays are accented with pilasters, while the two outer bays have lower entablatures and shorter windows. The ground floor includes an entablature and a row of rusticated Ionic half-columns, which structurally integrate the gabled piers of the enclosing wall and railings into their bases. The low enclosing wall has short iron railings that reach up to the cill level of the ground floor windows. The central four ground floor windows are round-headed, and the windows in each end bay are curved at the upper corners. At the east end of the library wing, a pair of gates provides access to the main forecourt. The forecourt of the Institute is enclosed by a low red brick wall with ashlar coping and brick piers topped with coping and lanterns at the entrance piers, along with iron railings.

The period interiors have largely been lost due to conversion and fire.