It was formed as an offshoot of Bethany chapel, which was then located in Cardiff City Centre (though would move to suburban premises in Rhiwbina in the 1950s).
The limestone used to build the church was once believed to have come from Italy, but is more likely to have hailed from Galway as ballast in coal ships.
In addition to the gift of the land from Lord Tredegar, the church was generously supported by the wealthy Cory family.
William Booth, the founder of the Salvation Army gave his first worship service in Cardiff at the church in 1863 because of Tredegarville's huge effort in establishing the cause.
[3] Missionary work is still a feature of its activities, with operations in evangelising Muslims in Roath which is a suburb with a highly diverse ethnic makeup, and in 2013, the church's congregation had members from 84 different nations.