text: Howdy :) The map should reflect what is actually on the ground. So, you are permitted to delete anything that no longer exists. As you delete items, you should use good changeset comments such as, "this is a construction zone, these buildings/paths/ponds, no longer exist". You can also create a construction zone to indicate where construction is taking place. If you have any questions on how to do all this, please feel free to ask :)  https://www.openstreetmap.org/user/chachafish
  