[1] In Waterford, a slightly more tolerant attitude prevailed, perhaps reflecting the comparative wealth of the local Catholic community.

[4] Edmund Ignatius Rice, the missionary and educationalist, worshipped at St Patrick's in about 1790, and joined other young men there in the "Waterford group", meeting for prayer and spiritual reading when it was known as the "Little Chapel",[5] the "Big Chapel" later becoming the Cathedral of the Most Holy Trinity.

The building was re-roofed in 1990,[4] and was closed for further renovation including a new access path in 2019, being reopened by Alphonsus Cullinan, the Bishop of Waterford and Lismore in September of that year.

[3] The National Inventory of Architectural Heritage rates St Patrick's as being of "national" importance and describes it as "one of the earliest-surviving post-Reformation churches in Ireland",[4] while the local diocesan website says it is the "oldest Catholic Church in Ireland".

The interior has a balustraded gallery along three sides, supported on an colonnade of five bays with fluted Doric columns.