That is the same number both on a node (once) and on the way/relation *that this node belongs to* (once)?
Do you mean area when you say way? I think if a building has the address then you should not have a node for just the address. If it's a amenity, craft etc. then it's fine to put the address on that, too.
PS: Yay contact: guess that will never end... __________ openstreetmap.org/user/AndiG88 wiki.openstreetmap.org/wiki/User:AndiG88 _______________________________________________ Tagging mailing list Tagging@openstreetmap.org https://lists.openstreetmap.org/listinfo/tagging