Chapter 1159 shall apply to all Districts. Except as provided in Section 1159.13, no building or structure shall be erected, substantially altered, or its use changed unless permanently maintained off-street parking and loading spaces have been provided in accordance with the provisions of this Ordinance.
A. The provisions of this Chapter, except where there is a change of use, shall not apply to any existing building or structure. Where the new use involves no additions or enlargements, there shall be provided as many of such spaces as may be required by this Ordinance.
B. Whenever a building, structure or use constructed or established after the effective date of this Zoning Ordinance is changed or enlarged in floor area, number of employees, number of dwelling units, seating capacity, or otherwise to create a need for an increase of ten percent (10%) or more in the number of existing parking spaces as determined by the Director of Zoning or his/her authorized representative, additional parking spaces shall be provided on the basis of the enlargement or change.
C. Whenever a building, structure or use existing prior to the effective date of this Zoning Ordinance is enlarged or changed to the extent of thirty percent (30%) or more in floor area or in the area used, number of employees, number of dwelling units, seating capacity, or otherwise, said building, structure or use shall then and thereafter comply with the full parking requirements set forth herein.