For each mobile home lot there shall be provided and maintained at least one parking space. Each such parking space shall contain a minimum area of one hundred eighty square feet (of dimensions nine feet by twenty feet or ten feet by eighteen feet) and shall be hard surfaced. If central parking lots are provided, they shall be hard surfaced and each space separated by striping or other adequate means and identified to the official lot number of the occupant and reserved for the occupant’s sole use. (Prior code § 17.28.040.)