The 1990 Americans with Disabilities Act does not require strictly residential apartments and single-family homes to be made accessible. But all new construction of public accommodations or commercial projects (such as a government building or a shopping mall) must be accessible. New multi-family construction also falls into this category.
In all states, the Federal Fair Housing Act provides protection against discrimination for people with physical or mental disabilities. Discrimination includes the refusal to make reasonable modifications to buildings that aren’t accessible to the disabled.
Two educational brochures, “Housing Rights” and “Discrimination is Against the Law,” are available through the Department of Fair Employment and Housing by calling (916) 227-0551. California residents can dial toll free (800) 884-1684. dfeh.ca.gov