Mom's with out of state college age children who are in need of housing

Hello, I am the very proud mom of the 23 year old who will be attending college at CAL Berkeley. The housing options for students in the Berkeley area are limited and very expensive. I live in NC and am disabled so my ability to help her financially is limited. Does anyone know of a realistic option as far as safe and affordable housing in the bay area? I know I can't be the only mom in this situation!