In regards to residential development, two factors need to be considered. Firstly, how many existing ‘trees worthy of retention’ are proposed to be removed/retained and secondly how many new dwellings are proposed.
Example 1:
Three new dwellings on a site – one medium tree is to be planted on the lot of each dwelling i.e. three medium trees required.
Example 2:
Four ‘trees worthy of retention’ are proposed to be removed as part of a development application for two dwellings. In this instance, four medium trees are required to be planted.


Example 3:
Existing house retained and one new dwelling constructed behind. One medium tree is to be planted on the lot of the existing house, and one medium tree is to be planted on the lot of the new dwelling at the rear.

Example 4 (tree concessions):
Three new dwellings on a site – if one tree worthy of retention is retained, then only one new medium tree required i.e. total of two trees across the site; or

Three new dwellings on a site – if one large tree is proposed, then only one additional medium tree required i.e. total of two trees across the site.

Note: The amount of trees required is generally the greater of the number of new dwellings proposed or the number of ‘trees worthy of retention’ removed. This may be able to be reduced where trees are retained or larger new trees are planted.