For subdivisions or resubdivisions having one or more of the following characteristics, the public works director and the director of planning shall have the power to waive any or all portions of the preliminary study requirements and procedure:
A. Where the subdivision involves the creation of not more than two new building lots and does not involve the dedication of a full width street or is not part of a larger tract intended for future development;
B. Where the subdivision involves the creation of not more than one new building lot which exceeds 20,000 square feet in size and has access to a public road;
C. Where the subdivision involves the replatting of existing lots and results in the creation of additional building lots, or involves an administrative subdivision.