Arran Quay is in St. Paul's Parish and St. Paul's R.C. Church on the Quay dates from 1816. Unfortunately, it is not possible to photograph the church from the quay and in order to photography it I will visit the other side of the river within the next few days. The church was built between 1835 and 1837 to the design of Patrick Byrne who also designed nearby St Audoen's Catholic Church and the Church of the Immaculate Conception (Adam and Eve's) on Merchants Quay.

 Eamonn and Sinead De Valera were married at St. Paul's in 1910 and in 1852 Captain Charles Boycott married Annie Dunne. 

It is currently (2022) closed to the public after a decline in numbers living in the parish. The church is used currently by a Catholic youth group and by the St. Gregrorios Jacobite Syrian Christian Church. 

The church was designed by Patrick Byrne and built between 1835 and 1844, not long after Catholic emancipation. The front has a granite portico with four Ionic columns. 

The three-stage Italianate belltower, with its copper dome, was completed in 1843 and is a visual focal point along the quay, except where blocked by the dome of the Four Courts to the east. The inclusion of a clock, less common on Catholic Churches, implies a sense of public responsibility thus increasing the status of the building. 

St Paul's contains a peal of eight bells cast by James Sheridan, of the Eagle Foundry, Church Street. These were originally hung for change ringing for most of their existence; however, they were converted into a chime (operated by one person only) in 1950, and can no longer be rung full-circle. A statue of St. Paul above the portico tops the apex, flanked by statues of SS. Peter and Patrick. 

The statues are the work of Joseph Robinson Kirk and were added about 1870. The large centre door leads to the church proper, while the smaller doors on either side give access to the balcony. The entrance hallway, inside the main door, has a mosaic floor. a marble baptismal font is in the rear of nave. It has a shallow barrel-vaulted coffered ceiling. Steps to the altar are of marble, as is the altar itself. 

The mural above the altar is a copy of Rubens' Conversion of St. Paul, done by F. S. Barff around 1863, which replaced an earlier depiction of the crucifixion. The apse is lit by a skylight