Not more than fifty (50) percent of the parking spaces required for theaters, bowling alleys, cafes, or similar uses and not more than eighty (80) percent of the parking spaces required for a church or school auditorium or similar uses may be provided and used jointly by similar uses not normally open, used or operated during the same hours as those listed; provided, however, that written agreement thereto is properly executed and filed as specified below.
In the event the required parking spaces are not located on the same lot with the building or use served, or if the spaces are collectively or jointly provided and used, a written agreement, approved as to form by the City Attorney, shall be properly drawn and executed by the parties, thereby assuring their retention for such purposes, and shall be filed with the application for a building permit.