1139.03 ACCESSORY USES.
   The following accessory uses shall be permitted in a Single-Family District only at such time as the main building is actually built or construction thereof is in actual progress:
(a)   Private garages, providing storage for not more than four motor vehicles for each family authorized by this Zoning ordinance to occupy the main building.
(b)   The office of a surgeon, physician, dentist, clergyman, or other professional man residing in the main building.
(c)   Any person carrying on a customary home occupation may do so in a Single- Family District if such dwelling is used by him as his private residence, provided that no persons other than members of his own family are employed in such occupations.
(d)   Real estate signs aggregating not over twelve square feet in area, advertising only the sale, rental or lease of the building or premises on which they are maintained; signs not over two square feet in area, containing the name and address of an occupant of the premises or announcing the existence of an enterprise.
(e)   Detached buildings for keeping poultry will be permitted on lots having at least 40,000 square feet and detached buildings for keeping livestock will be permitted on lots having an area of at least 80,000 square feet only if such poultry or livestock shall not constitute a nuisance.
      (1978 Code Sec. 1262.02)