@Heyladies7
I guess it would be a good idea to look at other schools suggested too.
I have not been much in touch with DLD for a long time. And it looks like a lot has changed. Back around 5yrs ago there was a different headteacher and they had just moved to their current location with their own boarding house.
Back then, most of the boarders were around 60% International Foundation and learning English students. So not really the ones from your DD classes. Infact, most of the GCSE, A Levels, BTech etc. students were non boarding - and I would have pegged this to be around 75% of the whole student body. Also, most of the foreign students from this group would also make sure they did not board, and would choose to live in the one of the Ubenest places instead. As a college, they did not operate like normal boarding schools and it was more mature like a university, no uniform, no houses (they have 'bubbles' now) and no usual boarding school traditions. There was no prep then, but I believe they have it now.
I do remember a couple of students getting caught with weed, and they were expelled either from school or boarding house immediately. Did not hear about harder drugs. I assume your DS will stay at your home. Was not aware things have moved on to them having a reputation of druggie school.
I must say, though that they are located right next to Urbanest, which has older uni students who may not be a good influence. To top it, some of the DLD students choose to live there.
fme, your DD should have lots of friends locally. Some of the students were part of circles in Chelsea and other Central London schools back then. But, as a college, they will not have the sheltered life of normal schools, as this is a very liberal school in terms of their social life.
But fme, she should get the pastoral support etc. in terms of academic school life.