Holy Trinity is a Grade I listed medieval church serving a vibrant rural and urban fringe community in Mid Sussex. The stone building dates from the early 13th century and was gradually developed to its present form by the early 16th century. It is likely that the building was at one time rendered and lime washed, although the rag stone walls, tower and single span Horsham stone roof now create an important architectural and heritage feature within the local landscape. The building interior was reordered by George Frederick Bodley in 1855 and it contains a key collection of the work of Charles Eamer Kempe, most notably the decorated ceilings in the chancel (1864) and the nave (1886). The church was further reordered in 2012 under the direction of Nick Lee Evans, to serve both modern liturgy and alternative community uses.
The exposed external stonework of the building is constantly subject to erosion by the weather. During the 1950s a hard cement mortar was used for repairs and repointing. This has trapped moisture within the stone, as it reduces the ability of the stone to “breathe”, making it more susceptible to damage by frost in the winter months. In affected areas the stone is therefore deteriorating faster than it did before the introduction of the hard cement mortar. Where appropriate the hard mortar will be removed, the stone replaced, or refaced, and repointed using a lime mortar. Rainwater goods and other iron work will also be refurbished.