We are just resubmitting some plans for our grade 2 listed house. It is listed by curtilage so has no actual listing reference and is a modern(ish) barn conversion. We originally asked for a small extension (rejected) but have changed this now to moving our staircase (modern) but the new application will involve knocking through some floorboards. Do I have any hope? Has anyone had success with knocking through walls or floorboards in a listed property?