There shall be no off-lot parking except on separate visitors parking lots, which shall be separate from the general mobilehome area by a buffer strip of at least twenty (20) feet. Such visitors parking lot may contain only twenty (20) parking spaces. Each parking space must be at least ten feet by twenty (20) feet, and comply with all other off-street parking requirements of the subdivision code of the city in existence from time to time. (Prior code § 23-2-22)