Singles w private bathrooms exist. SEAS (disability services) will consider housing requests for students who are registered w their office and have documented their disability. For instance, my kid has a food allergy which can be accommodated somewhat at one dining hall. So, after registering w SEAS, and requesting housing near that dining hall. my kid now has access to food options near the dorm. I suggest contacting SEAS office before ResLife, mostly b/c ResLife is shockingly understaffed and most likely will not be able to be reached.