A. Definitions:
COMMERCIAL VEHICLE: Any vehicle operated for the transportation of persons or property in the furtherance of any commercial or industrial enterprise, but does not include passenger automobiles, vans or trucks under one and a half (11/2) tons of rated load capacity used for the transportation of the occupants of the residence or their guests, nor does it include emergency vehicles, such as ambulances, nor utility repair vehicles such as Commonwealth Edison, North Shore Gas, Ameritech.
OFF STREET PARKING FACILITY ACCESSORY TO A RESIDENTIAL STRUCTURE: That area in front of the building line or that area where the main driveway extends beyond the building line to the enclosed garage, carport or main parking area. It does not include areas adjacent to the sides of the residence or in back of the residence.
B. Restrictions: An off street parking facility accessory to a residential structure shall be used solely for the parking of passenger automobiles owned or used by occupants of the dwelling structure to which the facility is accessory, or by guests of the occupants. Under no circumstances shall a required parking facility accessory to a residential structure be used for the storage of commercial vehicles or for the parking of automobiles belonging to the employees, owners, tenants, visitors or customers of business or manufacturing establishments adjacent to or in the vicinity of said residential structures, except as permitted in subsection 10-11-3B of this code. (1976 Code § 76.012)