These standards are designed to lessen congestion in the streets, by requiring the owners and operators of land, structures and uses to provide off-street parking for their residents, employees, customers, clients, patients and other visitors. However, nothing in these regulations shall be deemed to deprive such owners or operators of the right to maintain control over all such land and structures. The off-street parking requirements herein contained shall apply to the following activities which occur after the enactment of these regulations:

     A. Newly constructed buildings and newly established land uses;

     B. Existing buildings which are expanded by an addition thereto;

     C. Change in land use which generates a need for an increase in the required minimum of off-street parking spaces set forth in Section 17.112.020; and

     D. Expansion of a land use which generates a need for an increase in the required minimum of off-street parking spaces as set forth in Section 17.112.020.

     The regulations in this Chapter shall apply to all parking spaces, lots, garages, buildings or portions thereof to be provided in meeting the requirements of this Title.