1143.02 GENERAL STANDARDS.
   The Board of Zoning Appeals shall not permit the establishment of a home occupation unless and until the following facts or conditions exist.
   (a)   No more than one person other than the members of the family residing on the premises may be engaged in the home occupation. In no case shall there be more than three persons engaged in the home occupation.
   (b)   The ratio of time/space is equal to or less than .25. (Business hours per week divided by 168 hours plus the area of the occupation divided by the total area of the dwelling divided 2.)
   (c)   In no way shall the appearance of the structure be altered or the occupation within in the residence be conducted in a manner which would cause the premises to differ from its residential character either by use of colors, materials, construction, lighting, signs, or the emission of sounds, noises, or vibrations.
   (d)   An accessory building may be used for a home occupation, but the area used in the accessory building shall be used in determining the time/space ratio.
   (e)   The use shall not generate traffic, parking, noise, vibration, glare, fumes, odors, or electrical interference beyond what occurs in the applicable zoning district. All off-street parking requirements shall meet the requirements of Chapter 1131.
   (f)   There shall be no use of public utilities or community facilities to an extent beyond the normal use of the property for residential purposes.
   (g)   There shall be one sign, not exceeding four square feet in area non-illuminated, and mounted flat against the wall of the principal or accessory building or a free-standing, non-illuminated identification sign not greater than two square feet in area.
   (h)   No space outside the principal or accessory building shall be used for storage or for any home occupational purpose.
   (i)   All home occupation permits must get additional approval from the particular agency that may regulate the occupation, and a copy of the approval must be attached to the home occupation permit.