In 2005, Jupp returned to the Diocese of Chichester, and served as an Honorary Assistant Bishop between 2005 and 2012. In addition, he served as Priest-in-Charge of Christ Church, St Leonards-on-Sea. He was made Rector of the parish in 2006. From 2012 until 2018, he was Vicar of St. Laurence's Church, Long Eaton and Priest-in-Charge of Holy Trinity Church, Ilkeston; both in the Diocese of Derby. The Bishop of Derby did not however grant him a position as Honorary Assistant Bishop. He retired in November 2018.