(4) An accessory home business shall not include: (a) any manufacturing, welding, or other industrial or light industrial uses; (b) any activity which produces traffic, noise, vibrations, smoke, dust, odour, litter or heat beyond that normally associated with a dwelling; (c) a fire hazard or source of electrical interference; (d) any exterior display or storage of materials or finished products; (e) retail sale of commodities from the premises. (f£) businesses whose main purpose is to provide service or advice to clients who must visit the premises in order to receive the service or advice. Such businesses include doctors, dentists, hairdressers and similar occupations. (5) 4n accessory home business shall be completely enclosed within a principal dwelling unit and within any garage attached to the dwelling unit, and shall not be carried on outdoors or in any accessory buiiding. (6) The principal dwelling in which the accessory home business is being carried out shall have at least two off-street parking spaces. (7) No structural alterations or additions shall be made to a dwelling to accommodate an accessory home business. (8) Any or all accessory home businesses shall not receive more than ten visits on any day by persons visiting on business, or making deliveries to or from the premises. (9) No signs relating to an accessory home business shall be displayed on residential premises. (10) An accessory home business shall occupy not more than the lesser of 20% of the floor area of the dwelling unit (excluding the area of an attached garage) or 46 square metres (495 square feet). ehoay ri) Sf (11) For the purposes of the parking or storage of commercial vehicles or trucks, Section 504 shall apply.” he Pa