Thanks @Jennywrenny , I'll get dd to check her timetable again. At this point it will just decide whether we have to drive her (and all her belongings) back the evening before or the morning of the new term. She does normally have a 10am lecture that doesn't show up on that first day back, so hopefully nothing new will have crept in to get in the way earlier than that.
I am prodding dd to put together some sort of a list of what she thinks she does not yet have that she might need as we have this weekend and next weekend left to pack and prep - and she has her (4th) driving test next Saturday too.
And we are making plans around the dropping off day. Currently thinking along the lines of taking, dropping, doing the parents talk thing while she settles her things in, taking her and dd2 for dinner together then leaving her to it for the evening. We have the travelodge to stay the night so no need to rush away if she'd rather spend a bit of time there.