Grade II* listed
Most of the church is 14th century, with a 15th century tower, although there was a previous Chapel of ease in the 12th century in the village of cliff. The church had at least one aisle in the 13th century. Like many churches it has undergone several alterations over the years
The church consists of a 3 stage western tower, nave with north and south aisles, chancel and vestry.
The chancel contains remnants of the original Norman Chapel. There is a double squint near the pulpit. This could be for lepers to observe the mass or for an assistant priest to raise the Host at the same time as the priest at the main altar.
The nave has three Bay north and south aisles. There are various paintings hung on the walls.
The church was reconstructed in the 14th century - the roof timbers date from then, and the tower which is built of flint and stone is from the 15th century. The weathervane is dated 1756. The tower clock was made in 1670.
The aisles may have been raised at some time, and they had galleries inserted; both aisles had galleries by the 18th century.
The church was restored in 1877, although some work may have been done previously, especially to the windows. The galleries were removed in 1884 and the vestry was built in the 19th century and extended in 1930.
The organ was first installed in 1740, and another organ in 1802. The present organ is the successor to it.
Outside the church there is a public pump which was erected in 1804, but moved in 1903 to its present position.
See other images of St Thomas à Becket church, Cliffe, Lewes