A special land use may be amended as follows:

  1. Minor amendment. Minor amendments are those which will have no foreseeable effect beyond the property boundary, such as minor changes in the siting of buildings, the alignment of utilities and the alignment of interior roadways and parking areas. Minor amendments for good cause may be authorized by the Zoning Administrator without notice or hearing, provided no such changes shall significantly increase the size or height of structures, significantly reduce the efficiency or number of public facilities serving the site, significantly reduce the usable open space or significantly encroach on natural features proposed by the plan to be protected.

  2. Major amendment. Any amendment not qualifying as a minor amendment is considered to be a major amendment and must be approved by the authority granting the SLU to be amended according to the procedures authorized by this chapter for approval of a SLU.

  3. Unless otherwise provided by this chapter or the granting order, an order approving a special land use may be amended by the granting authority according to the procedures authorized by this chapter for approval of a special land use.