In 1825 it was decided to rebuild the church and the architect John Semple of the Board of First Fruits was engaged.

[2] In 2007, conservation work began on the church, with assistance from the Irish Georgian Society.

Dr. William FitzGerald served in Monkstown, from 1855 to 1857 when he was elevated to Bishop of Cork, he was succeeded by the Rev.

Archbishop of Dublin Joseph Peacocke served as rector of Monkstown 1878–94; he had earlier been a curate in the parish from 1863 to 1873.

Kevin Dalton[3] served as rector from 1979 until 2007, he was succeeded by Venerable Patrick Lawrence.