More outdoor space

I'm starting to contemplate a Brooklyn move, and as I do, I can't help thinking about three words: more outdoor space. When I lived in Boston, my best friend (and neighbor across the street!) had a private deck that was attached to her tiny studio in Beacon Hill. It made all the difference in city living—to have the opportunity to step outside and get some fresh air, all without leaving the comfort of your own home.

Do you have outdoor space at your home? Is there anything you'd trade it for? What are your apartment/home must-haves?

(Image 1, 2)