Tree Preservation Order Application

This Silver Birch Tree is under threat if a pending proposed planning application with Bristol City Council (Ref 20/02395/H) is granted. The proposal is for a single storey extension against and around two of the party walls in my small garden. In order to build this, the developers would need to dig down to the roots of this tree and in doing so, would endanger, harm or destroy it. I therefore am seeking a tree preservation order with immediate effect.