St Ninian's Episcopal Cathedral, Atholl Street, Perth

St Ninian's Episcopal Cathedral, located on Atholl Street in Perth, was designed by William Butterfield in 1849 and has undergone various alterations, particularly between 1901 and 1911 by JL and FL Pearson. This important Gothic cathedral features an exceptionally fine interior. It has buttresses and crockets, a transept crossing, and a clerestorey, along with a Lady Chapel, Chapterhouse, and vestries added by FL Pearson from 1908 to 1911, which connect to a former school building from 1936, now a day centre. The cathedral is situated on a corner site and is constructed of squared and stugged sandstone with contrasting smooth margins. It has a high base course, hoodmoulding, and a decorative parapet, with pilaster buttresses at the clerestory that break the eaves. The windows include pointed arched lancets with 2-, 3-, 4-, and 5-light Gothic tracery, as well as some rose tracery windows in the gables. A tall, spired fleche with an open bellcote is located at the crossing.

The east elevation, facing Kinnoull Street, is buttressed and features a large 5-light tracery window with a small circular window above it, topped by a Celtic cross at the gable apex. There are ornate octagonal crocketted clasping corner pinnacles. To the left, there is a lower polygonal-apsed Lady Chapel adorned with crocketted finials and trefoil openings piercing the parapet. A single-storey vestry corridor connects to a gabled chapterhouse on the left and the 1936 extension at the far left.

On the north elevation, facing Atholl Street, there is a pointed-arched doorway with a central stone mullion and a pair of boarded timber entrance doors featuring decorative metal hinges. The tympanum above the door has decorative carving. The windows are predominantly stained glass or small leaded glass panes, and the roofs are covered with grey slates and some leaded roofs.

Inside, as seen in 2009, the cathedral boasts a fine decorative scheme. It has a steeply pitched ceiling with elaborate timber work, including a timber wagon roof over the chancel. The nave features pointed arches supported by quatrefoil-plan piers. The sanctuary walls at the east have crocketted and finialled stone arcaded sedilia. A rood beam from 1924 by Sir Ninian Comper displays a Crucifixion scene. The high altar baldacchino, designed by FL Pearson, includes statues of saints and biblical scenes. The Lady Chapel features a timber vaulted ceiling.