[1] The church, originally designed by John Semple, was later remodelled by Thomas Drew between 1856 and 1889 according to Tractarian principles.

The building also boasts a fine number of stained glass windows designed by A. L. Moore, installed during the 1880s and 1890s.

Born into the community of All Saints, he later converted to Roman Catholicism and was ordained as a Jesuit priest before being excommunicated for modernist views challenging, amongst others, the doctrine of Papal Infallibility.

[6] The small instances of ritualism, incomparable with that represented in England at the time, generated protests and led to "a fiery mob of young men" breaking up the services offered within the church on some occasions.

Consistent with the Anglo-Catholic principles of the ritual of All Saints church, the choir consists of robed adults and children who "lend their voice to the adornment of the Sacraments and Other Rites and Ceremonies to the use of the Church of Ireland for the purpose of the worship of the Lord in the beauty of holiness and the edification of the people".

The choir traces its origins from the earliest days of the parish and records indicate that, while adult members were volunteers, the children were paid.

The principal repertoire of the choir is Gregorian Chant, while also encompassing polyphonic and contemporary works in accordance with the altered dynamic of the parish.