There are numerous options for low-income students such as the Berkeley Student Cooperative, which consists of student-run apartments and houses, in which students collaborate together to create a successful and affordable living environment.
In addition, the Basic Needs Center has a housing search guide if off-campus housing is something you are interested in. Facebook groups on off-campus housing around Berkeley and the Bay Area are also a wonderful resource (beware of scammers!).
UC Berkeley Residence Halls are also an option, but they tend to be more expensive than off-campus housing. The residence halls are a great option for first-year freshman and transfer students, especially if they are not from the Bay Area. If you are a financial aid recipient, please note that financial aid packages are adjusted based on your housing option.
Casa Joaquin is an off-campus, multiethnic leadership academy housing unit available for low income students.