I would just give it time. Im one that hates change. Luckily I've never had to deal with a situation like the one you are describing, but I imagine that it would be dificult to adjust. I think you will feel better there once you have gone there a few times.

Also, think about the positive things: you didn't lose your t during the move. That is a big one. Also, as for things that are in your t's control... what did she have in her old office that made you feel at home? I'm sure she brought her furntiture, etc with her to the new office... yes? is it cool in there (because it is larger?) Could you ask for a space heater to make things more cozy? is it too clean and modern? Maybe you could ask her to bring in a few old blankets or something to throw over the couch armrests or something to make it look more inviting. I am just throwing out ideas here (all the things I love about my t's office).