105-43 - Authorizations to Modify Bulk, Parking, Grading and Private Roads Regulations LAST AMENDED 1/19/2016 For a #development#, #enlargement# or #site alteration# located within the #Special Natural Area District#, the City Planning Commission may authorize: (a) modification of #lot coverage# controls in accordance with the provisions of Section 105-431; (b) modification of underlying district regulations relating to #bulk# or #parking# in accordance with the provisions of Section 105-432 (Modification of yard, height and setback regulations, and parking location regulations); (c) modification of grading controls in accordance with the provisions of Section 105-433; and (d) modification of requirements for driveways and private roads on #Tier I sites# and #Tier II sites# in accordance with the provisions of Section 105-434.