Unless otherwise provided in the regulation of this Ordinance, the following provision shall apply only in the R-3 General Residence District.

   Conversion: In all R-3 General Residence Districts, conversion of existing residential buildings shall be governed by the following:

   1.   The quotient secured by dividing the floor area of all dwelling units on a zoning lot by the number of dwelling units on such lot shall not be less that five hundred (500) square feet.

   2.   No existing residential use shall be so converted as to conflict with, or further conflict, with the requirements in “1” above.

   3.   Where applicable, an efficiency dwelling unit or a lodging room may be considered as 0.75 of a dwelling unit in determining compliance with “1” above.