Hospital, sanitarium, rest home, nursing or convalescents, convalescent home, physician's office or dental office, beauty parlor, professional offices. Professional offices shall include, but not be limited to, physician, dentist, lawyer, engineer, architects, landscape architects, accountants and occupations of similar nature. For the purpose of this definition, determinations as to similarities shall be governed by the definition of home profession occupation as that term is defined at 53 P.S. § 10603 and shall be made on a case by case basis.