The churchwarden at the time was John Bolney, also a significant and wealthy landowner in the parish, whose family was long established in the area. Described as the "moving spirit" behind "an inspired community effort involving the whole village", he paid for the tower to be built and arranged for dozens of villagers to use their skills and any money they could offer to quarry the sandstone, cut and shape it, build temporary bridges and paths to transport the material to the church, build tools and wooden scaffolding, and erect the tall, structure at the west end of the church. The project was completed in 1538, and a new west doorway was inserted below John Bolney's coat of arms and the commemorative wording . The church continued to expand as the congregation grew. A west gallery for choristers was inserted in 1670—an early example of the practice, common in Sussex, of building accommodation for a choir at the west end of a church so the congregation could face them when they sang. Organs were sometimes too expensive for churches to buy, so choral music by local singers was often preferred instead. West-end galleries only became prevalent in Sussex churches in the early 18th century, though. A porch was built on the south side in 1718, enclosing the Saxon/Norman doorway; and as part of a Victorian restoration, the capacity was increased in 1853 when the nave was extended with a north aisle. A clock was added to the tower in 1898 to commemorate Queen Victoria's Diamond Jubilee. A vestry was added in 1912, and general work was carried out in the nave and chancel during the 1930s. A modern stained glass window by prolific Sussex-based firm Cox & Barnard was inserted in the south aisle in 1982; it depicts a rural scene. The Huth family were important in church life in the 19th and 20th centuries. Henry Huth was a bibliophile whose enormous collection of rare books was sold for £300,000 in 1910 (£ in ). He lived in an extravagant château-style 1870s house called Wykehurst Place in the parish, and was buried in the churchyard after his death in 1878. In 1905, his son Edward gave the church a large, "magnificent" lychgate constructed from local materials: oak, millstones from a mill in the parish, Sussex Marble (a locally quarried limestone) and a Horsham Stone slab roof. It stands at the end of the twitten leading to the churchyard, which has been left slightly overgrown to conserve wildlife.