A home occupation may occupy a loft dwelling, or a dwelling unit converted pursuant to Article I, Chapter 5 (Residential Conversion Within Existing Buildings), as an accessory use pursuant to Section 15-13 (Special Home Occupation Provision), except that:

(a)    businesses operated as home occupations may have up to three persons not residing in the dwelling unit or rooming unit may be employed; and

(b)    a home occupation may include any permitted commercial or manufacturing use.