No, as long as the first dwelling level floor above grade is accessible. Some buildings have parking on the lower floor, and a ramp, wheelchair lift or elevator will be required to provide access to the lowest dwelling level floor above the parking. Accessibility to buildings or portions of buildings shall be provided for all occupancy classifications except as specifically modified by the building code. Multistory buildings must provide access by ramp or elevator, with elevator exceptions available for some buildings. Generally, two story office buildings are not required to have elevators, although all other accessible features are still required on upper floors.
Construction law is quite difficult, and takes experienced professional expertise.
The Division of the State Architect functions as a building oversight agency on state-funded construction projects, and can only direct you to general resources at your local building department. The Manual is also available in hardcopy at technical bookstores throughout California. Accessible seating or accommodations in places of public amusement and resort, including theaters, concert halls and stadiums, but not including hotels and motels, shall be provided in a variety of locations so as to provide persons with disabilities a choice of admission prices otherwise available to members of the general public. When there are over 300 seats, dispersal is required, and when there are less, no dispersal is clearly indicated in the code. The building code does mention this, and further changes in te code to clarify this is quite likely.