(A) The requirements of this section shall apply to all new residential subdivisions creating more than five buildable lots and to all new multi-family and non-residential development. New single-family residential construction shall provide tree(s) in accordance with the residential design standards found within Chapter 5.
(B) Expansion or reconstruction of an existing non-residential building or development shall be subject to the requirements of this section as follows:
(1) Any development site on which there is an increase in building area or impervious surface area by more than 50% or where a structure has been demolished and a new structure has been built in its place shall fully comply with the tree canopy requirements set forth in this section.
(2) Any development site on which there is an increase in building area or impervious surface area by more than 20% and less than 50% shall provide one-half the tree canopy required by this section.
(3) Any development site on which there is an increase in building area or impervious surface area by 20% or less shall not be required to provide the tree canopy required by this part.
(C) (1) The requirements of this section shall apply to the entire area shown on a development plan and the required canopy may be equally distributed throughout that area or be concentrated in certain parts or portions of that area.
(2) Note: This provision allows residential subdivisions and multi-lot commercial developments to group trees in clusters throughout the development rather than meeting the canopy requirements on a lot-by-lot basis.
(LDC § 10.1.2)