But early in the 15th century there was a dispute between parishioners and the Bishop of Rochester.

Henry Chichele, Archbishop of Canterbury, intervened and in 1421 the parishioners of St Nicholas were instructed to move out of the cathedral to a church of their own.

It was partly demolished, rebuilt, and on 24 September 1624 John Buckeridge, Bishop of Rochester, reconsecrated it.

[6] In 1963–64 Diocesan offices were inserted in the west end and aisles, which were partitioned off for the purpose.

[6] St Nicholas is now the headquarters of the Diocesan Board of Education.