Notwithstanding the provisions of Section 78-06 (Ownership), a tract of land which is the subject of an application for authorizations or special permits under the provisions of this Chapter may include adjacent property in more than one ownership, provided that the application is filed jointly by the owners of all property included. Any subdivision of the tract reflecting ownerships at the time of application or creating new ownerships before, during or after development shall be subject to the provisions of Section 78-51 (General Provisions).