You know that room where someone was pushing down exploding boxes at you and you find a cyborg assassin carrying a quest item. The elevator is broken. Is it possible to get up to the platform there?
Please define.. in my case, I built in a cold store
under my house (root cellar)
I live in New England. The room, which did involve annoying zoning, did ultimately work. I made sure it was north/northeast in my basement. It will store vegetation I intend to grow/store for the foreseeable future.
To give you a better answer... where are you planning to build? (Growing zone wise...)