> Yes, you need to obtain “permission” before you build any manufacturing structure on your own land with your own money. This permission is called the NA or Non-Agricultural Certificate. Well, I though it was this way everywhere in the world. In Europe, at least, you cannot build anything on agricultural land unless it is a n agricultural structure or you get the classification changed, which is not easy.
What seems overly complex and inefficient is the amount of permissions and the subpermissions.
Even to my German bueorcracy adjusted ears this sounds like a great way to extract bribes and fees. At least the process here is quite clear (but not always fast)