Holly (T1) Fell tree in decline . G3 (Holm oak, Bay) Reduce in height by up to 1.5m and trim both sides to maintain trees as a hedge. G4 (Bay) Reduce in height by up to 2m. T5 (Sycamore) Fell self seeded tree close to high retaining wall. T6 (Olive) Fell tree close to high retaining wall.