Somerset, DD felt the same. She was probably unlucky in that the person in the room next to her does not attend much, has plenty of money, so can keep very different hours/lifestyle. Getting up at 6.30 to set off for a remote placement using a rural bus service, when others were coming in at 4.00am in a party mood has been tough. From what I can gather flats go either way: quiet or party. She does not dislike the people in her flat, but decided after a difficult week when she was coping with illness, that it was time to be selfish, and ask for a transfer. It seems that it is not unusual for medics to have problems (she is not the only one who has moved) and the accommodation office responded really fast. A quiet clean flat, taking the place of a party person who had asked to move to somewhere more lively.
Its sort of what I meant by that extra year's maturity. There seems to be a lot of pressure to hang out with people in your flat. But something has to give if you have 30 hours teaching and 4x 9.00am starts. Dipping in and out of flat social life can be taken as disloyalty or being antisocial. It is quite possible that not everyone in DDs old flat will graduate. By prioritising her own needs, she should. (Which is why I said in retrospect she should have opted for the hall favoured by scientists, however dull it is painted. Ironically a number of her friends live there.)
2BIGmum, there was a Coeliac is DDs flat. I think your daughter may have to be very clear and upfront to others about what this means, and insist on defined space to store her stuff. Not everyone is particularly house-trained, and there is a lot of "borrowing" other people's cooking equipment, crockery and food. (DD used to prepare a snack to eat on the bus on placement days, often to find that it had been swiped by hungry clubbers in the early hours.) A bore but she might find it is easier to store stuff in her room. And if she is unlucky and finds people take clearly marked food, demand that she is allowed her own mini fridge.
On the other hand, DD is really enjoying the course, loves the city, is making some good friends, has a great and reasonably inexpensive flat close to the University lined up for next year, likes the opportunities to intercalate, and is pleased that placements are mainly in attractive places. Getting the place is only the start of what will be a long, and sometimes difficult, journey.