In reply to markpollak:
I'm still trying to arrange a meeting with the owner, but currently drawing a blank by phone and email. I've advised them that the temporary restriction put in place has now expired.
Anyone wishing to climb there should be aware that the 'no climbing' signage is still in place and there is some chance they may be asked to leave. The standard advise for anyone asked to leave while trespassing applies, which is to do so promptly and politely without complaint.