1. MAKE NO SECRET OF YOUR MOVE
The child, no matter how old he or she is, deserves to be aware of all changes that are going to happen in his or her life. Your kid needs time to prepare for the huge change that for the moment can be the greatest challenge of his life. That is why you need to tell him about possibility of relocation even before you decide it yourself.
The best way to do it is to gather a meeting where you can explain the situation to the young members of the family. They need to feel as their opinion matters so make them part of the discussion. Feeling like he makes a decision with you will help him embraces the changes in his life easier.