St Andrews R.C. Church Hall, Bridgend Street, Rothesay, Bute

This building is a church hall, originally a United Free Church, constructed in 1908 by A M McKinlay and later converted to its current use in the late 20th century. It is situated on Bridgend Street, Rothesay, on the Isle of Bute.

The asymmetrical two-storey building features a prominent single bay polygonal tower to the right and a lower, two-bay wing recessed to the left, which adjoins a neighboring building. The exterior is constructed from coursed, natural-faced red sandstone with red ashlar dressings. Architectural details include a raised base course, ashlar cill and lintel courses at ground and first floors, and a coped blocking course above the tower. Red ashlar quoins are present, along with long and short ashlar surrounds to the openings. The windows are a mix of square-headed ground floor windows and segmental-arched windows at the apex, with flat, ogee-arched windows on the first floor. Mullions and transoms are architraved and the reveals are chamfered.

The east-facing entrance elevation has a prominent, canted tower to the right containing a recessed, panelled door with an architraved Tudor-arched surround and a quadripartite fanlight. Flanking the door are half-engaged octagonal shafts with moulded stops and circular caps, topped by a corniced drip-course. A bipartite window is centrally aligned above the door on the first floor. A projecting, half-engaged octagonal belfry with louvred trefoil-headed openings sits atop the tower, finished with bracketed eaves and a finialed ogee roof. To the left of the entrance is a recessed two-storey panel with two single windows at ground level and a large segmental-arched window at first floor, composed of round-arched openings framing a single ogee-arched opening, with mullioned fanlights above. A projecting foliate stop links the single-storey wing to the left, featuring a panelled door with a roll-moulded surround, segmental-arched lintel, and a bipartite window in the outer bay.

The windows are mostly filled with opaque leaded glass, with stylised floral decoration in the upper panels. The ground floor bay to the left has boarded openings. The roof is covered in graded grey slate, with raised stone skews, terracotta ridge tiling, a conical-capped ridge ventilator and a tapering finial.

Inside, a false ceiling has been inserted to create a hall on the ground floor, with storage above. Regularly-disposed cast-iron quatrefoil Corinthian columns support a pointed-arched arcade above the ceiling. A hammerbeam roof and a gallery on the east side are also present. A large pointed-arched window on the west side has been halved. A stone staircase with a decorative cast-iron balustrade and a timber handrail leads to the upper floor.

Cylindrical piers with circular caps flank the entrance, and an engaged single pier is located at ground level to the left of the centre.