Finals,
One place that springs to mind is a short distance away from a well used helipad site - so that the older twin aircraft can get a slurp. Are there clear area RR sites a short distance from Battersea these days on the routes in and out??
A recent and sad loss to the list of those who will RR is Halfpenny Green/Wolverhampton International-Business (delete the part of the name that does NOT apply this week). It was such a useful location on a trip.
I believe that the quoted reason for this is due to cutbacks in staff.