The Church was completed in 1859, in the French Gothic style with long, elegant, stained glass windows, from Dublin, Ireland showing the Annunciation and Resurrection. Stations of the Cross adorn the walls. The main alter is designed by Giles Gilbert Scott, who designed Liverpool Cathedral in 1904. In the 1920s, Gilbert Scott, won a competition for the General Post Office. He designed, the now iconic, red telephone box.
The origins of the church organ are not entirely known. It is believed to have been in the Pro-Cathedral in Dublin before being installed in the church over a hundred years ago, however during restoration a note was found on which it was written that the organ had been bought from St Francis Xavier’s in 1913. There are earlier references to the organ being at St Mary’s making it something of a mystery.
During the Corona Virus epidemic of 2020, this Church held live streamings of Mass, on a daily basis, led by Monsignor John Devine. St Mary continues to have a live stream of mass which may be viewed via the Roman Catholic Church webpage.