There was a church on the present site by circa 1000, of which only the west wall remains. The oldest substantially-remaining portion of Holy Trinity Church is the west tower, dated to the middle of the 11th century; this is built in three stages, primarily from reused
Roman bricks, and has a pyramidal tiled roof. The original Anglo-Saxon church was likely single-celled, with the nave and chancel in the same space. In the mid 14th century the nave and chancel were rebuilt, and in the late 15th century the south arcade, south porch, and south chapel were built. These additions underwent significant restoration work in 1886. The church contains a mural alabaster monument to
William Gilbert. == History ==