Motor Vehicles must be parked on an all- weather surface such as black top, brick, concrete, or gravel. Only runners made of an all-weather surface shall be used for driveways and parking places located in the front yard.
No vehicle shall be parked on the lawn, the yard, or the sidewalk.
No motor home, trailer, watercraft, mobile home or aircraft, operable or inoperable may be parked on front yard, side yard or on the street for longer than 3 days.
SOURCE: STANDARD BUILDING CODE, 1997 EDITION, SECTION 1104ff