107-31 - General Regulations for Natural Features LAST AMENDED 11/2/2023 Except for any existing natural feature which is unsafe and the removal of which is required by the Department of Buildings to eliminate hazardous conditions, no #site alteration# may take place except as provided in this Section, inclusive. No modification of topography shall take place within eight feet of a tree that is counted toward minimum #tree credits# pursuant to the provisions of Section 107-32 (Tree Requirements). Within any #zoning lot# which is not a #plan review site#, tree removal shall be permitted in areas that do not contain #designated open space#, provided that such #zoning lot# complies with the provisions of Section 107-32.