/diy/ - Do It Yourself

I have a house that has wooden walls on the inside and a single brick layer wall on the outside. The windows and the roof frame are built onto the wooden frame, while the brick wall isn't really doing much. It isn't bearing any load and it's not even anchored to the wooden walls as far as I can tell.
Would it be safe for me to extend the brick wall to cover the second floor as well, or would that be too tall for a single brick layer wall?