I think that it should be fine if your app could put a node inside the building (at the center?) with the housenumber, and maybe with a fixme "move me at at the access of this building". Being OSM a collaborative project which works with subsequent refinements, someone later could set the exact position.
But I'm afraid that it's not easy to detect if the housenumber is already set (is already there a node "near or inside" the building with the housenumber?) P.S. However, thank you Tobias for your great app, I think it's a valuable tool to bring newbies to OSM. -- Sent from: http://gis.19327.n8.nabble.com/Italy-General-f5324174.html _______________________________________________ Talk-it mailing list Talk-it@openstreetmap.org https://lists.openstreetmap.org/listinfo/talk-it