The development of West Wickham between the two World Wars necessitated the formation of two new parishes - St Francis of Assisi and St Mary of Nazareth . The parish of St Mary's began as a conventional district in 1933, made up of parts of three neighbouring parishes.
A new digital organ was purchased and installed in 2016. This replaced the failing pipe organ which was no longer economical to repair. A new keyboard was also purchased for the chapel.