With the Renovation functionality in ArchiCAD every element can have 1 of 3 statuses:
Existing
Demolished
New
With this status the Renovation filters can show, hide or override anything using a particular status.
We have included 8 statuses with the NZE template that are set up like so:
You can read up more about this on page 46 of the ArchiCAD 18 NZE Template document