Use and loading
If the existing driveway has a limited footprint, compare the proposed parking layout with the space needed for walking and bins.
Why it matters for your tarmac surfacing: Describe the normal and occasional use of the area so the construction is assessed for its intended duty. For tarmac surfacing, it can affect excavation, compaction, course depths, drainage, edge support and the handover programme.
Useful photograph: the complete usable area with typical parking or movement space visible.