A. The provisions of this Chapter do not apply to commercial or industrial subdivisions or to condominium projects which consist of the subdivision airspace in an existing apartment building which is more than five (5) years old, when no new dwelling units are added.
B. Subdivisions containing less than five (5) parcels and not used for residential purposes shall be exempt from the requirements of this Chapter, provided, however, that a condition shall be placed on the approval of such parcel map that if a building permit is requested for construction of a residential structure or structures on one (1) or more of the parcels within four (4) years, the fee shall be required to be paid by the owner of each such parcel as a condition of the issuance of such permit.