[1] In August 1864, Cardinal Nicholas Wiseman invited the Order of Saint Augustine to start in a mission for the local Catholic community.

On 20 September 1864, the foundation stone of the church was laid by the Vicar General of the Archdiocese of Westminster, Edward Hearn.

In late March 1865, a concert was held in the sanctuary and part of the nave of the incomplete church.

[2] From 1903, the Augustinian friars started going out to Hammersmith to serve the Catholic community there, eventually building St Augustine's Church in 1916.

[3] In 1907, the school next to St Monica's Church was demolished and replaced with a new one that was opened on 4 July 1908 by Archbishop of Westminster Francis Bourne.