heres some quotes from really really old posts:
"...Chads: also very religious but it is so small and apparently has one of the best communities in the Uni as everybody knows everybody. accomodation is alright but nothing special apparently. again bar is stupidly small and dark."
"...It shouldn't really be a problem if you're not religious, although John's is the most religious college in Durham really, even more so than Chads, and quite evangelical."
"...Chad's and John's were set up as religious institutions shortly afterwards."
But it might not actually be that religious. and its probably a realy nice college too