Retrospective Application for Tree Works Within W2. 19 no. OAKS. The following works were undertaken: All ivy removed and the stems left to dry and die. The stems were then removed as far as possible up to a maximum height of 4.0-5.0m. Live lower branches were removed over the car parking area to a height of 3.5-4.0 m. I no. limb to the southern side of an Oak adjacent to the carport was removed back to the branch collar. This limb had a stem diameter of approximately 175 mm.