Salvin also restored and repaired 20 old churches and three cathedrals, and built 34 new churches. In the early 1840s he had worked on The Holy Sepulchre, Cambridge, employing James Rattee, and following this he was made an honorary member of the Cambridge Camden Society. He arranged for the removal of buildings around the south transept of Norwich Cathedral and reordered its choir. He also made alterations to Durham and Wells Cathedrals. In all he designed at least 34 new churches. Salvin's restorations were not to the liking of the Society for the Protection of Ancient Buildings, particularly his removal of "unwanted fabric" from churches. Other work carried out by Salvin included rebuilding the keep of Durham Castle for student accommodation, and work on restoring Trinity College, Cambridge.