St Martin-at-Palace Plain is a medieval church that was restored in the mid nineteenth century by Edward Hakewill. After being made redundant in 1971, the church became reused by the Norfolk Probation Service in 1987, because it is close to the Law Courts. This resulted in some screening being provided in two chancel chapels, to create meeting-rooms, and inserting a three-tier mezzanine floor in the north aisle. Below that excavation works, on two descending levels, provided an opportunity for archæological investigations. Other improvements included restoring the north aisle roof in 2007. MoveOn East then succeeded the Probation Service, but vacated the building in 2012. It then stood empty until 2017 when the Norwich Historic Churches Trust located its main operations there.