(A) To preserve existing living qualities of residential neighborhoods.
(B) To ensure future high quality amenity including, but limited to the provision of adequate light, air, privacy and convenience of access to the property.
(C) To increase convenience and comfort by providing usable open space and recreation space on the same lot as the housing units they serve.
(D) To prevent additions or alterations of structures which would damage the character or desirability of existing residential areas.
(E) To protect residential areas, to the extent possible and appropriate in each area, against unduly heavy motor vehicle traffic.
('69 Code, § 7-16.01, Subd. 1)