Parking location. Should additional parking be required as a result of an expansion of an existing use of property or the change of a use of property, such additional parking shall be located in the side or rear yard. Such additional parking shall not be authorized in the front yard unless the property in question is a corner lot. In this case, such additional parking may be authorized in the front yard of the secondary frontage, but shall not be authorized in the front yard of the primary frontage.