Approval of the preliminary land division shall constitute authorization for the land divider to provide the land division’s facilities and improvements in accordance with standards and procedures established by this title and any conditions imposed by the Board, Hearing Examiner, or Administrator as part of preliminary approval. No portion of the land division or area within a binding site plan shall be occupied prior to final plat approval with the exception of those structures that are legally existing and occupied at the time the preliminary land division application is submitted, except where otherwise authorized by this title.