The Church is built on a triangular plot on the Larne Road. The land had been bequeathed to the parish in 1895 by a Miss McKeown. For almost seventy years it had remained vacant and during that time it was referred to by the townsfolk as the Chapel Field or Pope’s Plot.

On 8 September 1968 the Church was blessed and dedicated by His Lordship, Most Reverend Doctor Philbin. The building is hexagonal in shape. It is surmounted by a graceful spire rising from an unusual copper-finished roof. The walls are of Clondalkin Bes-stone with abstract design used both externally and internally. Triangular shaped windows with tinted cathedral glass give the maximum of light inside, whilst an engraved glass technique was employed in the design of the low level windows at each of the side entrances.

There is seating for one thousand and fifty people. The seating is grouped around the Sanctuary which, in itself, is designed as an integral part of the main church. Special emphasis in locating the Tabernacle on the rear wall was effected by the use of a triangular shaped back-cloth in white marble briquettes. An unusual technique, ceramic and steel mosaic pieces, was used for the triangular shaped Tabernacle and Baptismal Font. The latter is sited directly opposite the Sanctuary at the main entrance to the church and has surrounding decorative glazing in brilliant coloured continental block glass. The communion rails are of Connemara marble.

Internally the main floor is covered with selected granolithic tiles; the Sanctuary floor has travertine marble to contrast with the furnishings which are executed in Connemara marble. The heating employed was electric underfloor. This was replaced in 2001 by oil fired central heating. An outside boiler room and toilet was also added at this time. The lighting is recessed into the timber ceiling which reflects the external roof shape. In full sight of the altar and with a striking glass partition there is a sound-proof crying room to accommodate parents and small children. On the opposite side is a choir annexe.

The internal church walls of Clondalkin Bes-stone were meant to be left unpainted but in the 1980’s Monsignor Tumelty decided to paint the wall behind the altar and the pillars of the church as some parishioners likened the Church to a warehouse.