For this building I wanted to put a balcony on it. After pondering how to make one look good I ended up deciding that having an 2nd floor apartment with stairs on the outside could look neat. It does open up and I will be adding details after a MichLUG show this weekend.
I buried the stairs into the wall to provide lots of rigidity. Now the whole building can be picked up by the stairs. At the top of the stairs, the landing does get a little tight, but the hatch does close, so if no one is going up or down, there is more usable space.