S.M.
I don't think it matters as long as the crib is away from all hazzards and drafts. Our kids cribs were on an outside wall in our last apartment. It was the best way for them to be with the design of the rooms. Just make sure if you hang anything above the crib, you put it up high enough the baby can't pull it when they get older and if you put a shelf up there, make sure you properly anchor it so it doesn't fall in the crib. I read a story in the newspaper in Indiana that there was a couple moving into their apartment and they put the baby's crib up first and put him in it while they finished unpacking and he pulled the blinds down on top of him and it smothered him, so be careful!