<p>Harvard has a number of buildings that are not wheelchair accessible and do not even have elevators (S was in such a dorm in his freshman year, on the fourth floor). That said, Harvard provides great services for students with disabilities. One young acquaintance of mine sprained her ankle last year. She ordinarily lived on the third floor of a House without an elevator. She was moved to one in another House on the ground floor for the duration of her recovery. There is an office of disabilities that is very helpful.
Google Brooke Ellison for a story of how a quadriplegic flourished at Harvard. She wrote a book, and Christopher Reeves produced a movie from the book.</p>