 John rebuilt the monastic church at Bath, which had been damaged during one of Robert de Mowbray's rebellions. As rebuilt, it was only surpassed in size by the cathedrals at Ely, Norwich and Winchester. The present Bath Cathedral is not the building that John built, and occupies only a fraction of the space that John's building encompassed. He also reformed the administration of his diocese, setting up archdeacons and organising a court for hearing ecclesiastical cases. His efforts to reform his diocese led to his cathedral chapter's complaining of their treatment, which John seems to have ignored. At Wells, he was accused of destroying the community of canons there, which had been created by his predecessor.
