The storage or parking or use of a trailer, recreation vehicle, boat, boat trailers or camp-type trailer by any person or persons, except as hereinafter provided, is prohibited in a Residence A District and Residence B District; provided, however, that one such trailer, recreation vehicle, boat with or without a trailer, boat trailer or camp-type trailer may be kept or stored on a premises in a Residence A District and Residence B District upon the following conditions:
(1) Said trailer, recreation vehicle, boat, boat trailer or camp-type trailer must be owned or rented by the occupants of the premises, must not be kept for purposes of sale or rental and must be used solely for the personal use of such occupants;
(2) Said trailer, recreation vehicle, boat, boat trailer or camp-type trailer shall not be occupied as living quarters at any time when it is located on the premises; and
(3) Said trailer, recreational vehicle, boat, boat trailer or camp-type trailer, when stored upon the premises, shall at all times be parked in accordance with the following:
(a) On interior and corner lots, vehicles shall not be parked within the established setback lines for the district and shall in all cases be stored or parked at least four feet from the interior side and rear lines of lots.
(b) On interior lots, said vehicle shall be stored on the rear third of the lot only.
(c) On corner lots, said vehicles shall be stored so that no part thereof shall encroach upon the area between each respective street and a line drawn parallel to such street in a manner to divide the lot into two equal parts.
(d) No vehicle shall be nearer than eight feet from the main residence building or nearer than six feet from any accessory building; provided, however, that vehicles may be stored inside garages on the premises.