Thanks for the replies
At the minute she doesn't have a litter tray, I wanted to see where she was inclined to go rather than just putting it somewhere she didn't want it. Unfortunately, she's decided her nest is where she wants to go >_< I didn't know about houses with sections, so at the minute she has a couple of smaller single room places to hide in. I'll look into something more suitable though I'm guessing it's best to give her a bit longer to settle before I start messing with her cage too much? I've not had her very long.
And she's a dwarf hamster, not a Syrian.