[2] The church was granted Grade II listed building status in 1954 for its Victorian-medieval style architecture and original fittings.

[3] The church's association with the social reformer Octavia Hill also provided a reason for its Grade II listed status.

[4] Hill is buried in Holy Trinity's churchyard under a yew tree; there is a memorial sarcophagus inside the church.

[2] In 1981, the Church of England decided that Holy Trinity Church's parish should be merged with that of nearby St Peter and St Paul's, Edenbridge, with an associate vicar taking services at Crockham Hill and the Warde patronage suspended.

The decision was not popular locally due to the historical associations with Westerham being ignored, and the Bishop of Rochester appointed the future Archdeacon of Tonbridge Richard Mason as the priest-in-charge to smooth over relations.