Sydney Arborist
The first thing that you need to consider is whether the tree is alive or dead. If the tree is living, you will need to contact a tree service to cut it down.
After the tree has been removed, you will need to clear the land around it. It will be a good idea to dig a trench around the tree trunk to prevent the tree roots from growing back. After you have cleared the land, you can plant something else there.
The reason why you need to do this is to improve the health of the trees. Trees are important because they provide shade.