Section 119-111 - Tier I tree preservation requirements
To the maximum extent possible, existing trees shall be retained. Trees of six-inch caliper or more may only be removed or destroyed as a result of a development , enlargement or site alteration , provided that:
(a) such trees are located in areas to be occupied by buildings , private roads , driveways, areas for required accessory parking, or within a distance of 15 feet of the exterior walls of such building , provided that it is not possible to avoid such removal by adjustments in the arrangement of such buildings , driveways or required parking areas;
(b) the continued presence of such tree would create special hazards or dangers to persons or property, which would not be possible or practical to eliminate by pruning;
(c) the continued presence of such tree would interfere with the growth or health of another tree of six-inch caliper or more designated for preservation and belonging to a species listed in Appendix B (Selection List for On-site Trees); or
(d) an authorization pursuant to Section 119-313 (Modification of landscaping, tree preservation and tree planting requirements) has been granted by the City Planning Commission approving the removal of such trees.
Any tree of six-inch caliper or more that cannot be preserved as a result of a proposed development , enlargement or site alteration shall be replaced pursuant to the provisions of Section 119-112 (Tier I tree planting requirements).