(a) At any time an existing parking lot or loading area is enlarged to cover a greater area, the entire parking lot and/or loading area shall be made to conform with the then current requirements for paving, storm sewer, and landscaping, to the maximum extent practicable as determined by the Planning Commission.
(b) Alterations or repairs may be made to any existing parking lot and/or loading area without requiring the existing facility to comply with all requirements of this Chapter, provided the alteration or repair conforms to the applicable requirements set forth herein.
(c) Off-street parking and loading facilities accessory to an existing use on the effective date of this Development Code, and those required as accessory to a use created or a building constructed or altered thereafter, shall be continued and maintained in operation, and shall not be used for any other outdoor uses and shall not be reduced below the requirements during the period that the principal use is maintained.