P-1, P-2, O-1, O-2, O-3, GB-1 and CBD Zone Districts. No outdoor storage shall be permitted except operable motor vehicles actually used in the business conducted on the premises, except that on any premises where the principal use is residential, the outdoor storage permitted for residential zones shall also be permitted for that premises. On premises containing a mixed residential/non-residential development, outdoor storage for the residential use shall be limited to customary and ancillary storage of typical household waste and recyclables for pickup. Storage of refuse and recyclables for non-residential use shall be located in the rear yard only.