Buildings and works near a tree will require a permit but there are steps you can consider when planning a deck.

Large trees will have roots that collect the water and nutrients they need a considerable way from the trunk. The larger roots near the trunk will be providing stability to the tree and you don’t want to damage them.

Engage an arborist to assess the location of the tree and potential locations for the foundations of the deck that will not damage roots.

Case study

Philip wants to build a new deck in his garden so that he and his family can enjoy meals outside in the shade of their large oak tree. He is keen to protect the tree because it is on the north side of the house and keeps it cool in summer. 

Philip hires an arborist to track the location of the major roots and submits a plan to council that shows that the foundations of the proposed deck are clear of the structural roots.