I've been to the Castlewellan ESB charger, and that site is owned by the local council. Have you approached the council or your elected representatives to ask them to mark it up? Its also something that the charge point operator should be looking at, but I would doubt that ESB ecars would bother as they've declined at other AC sites. In any case they've moved away from the green coloured surfacing, with the latest on road DC chargers receiving a black coloured resin surfacing.
I'm part of EVANI and we have had some success with getting on-road bays marked up. However DfI Roads requires a Traffic Regulation Order (TRO) so its a slow process, but it at least does allow traffic enforcement.
With regards to community charging the On-Street Residential Charging scheme (ORCs) is funded from London, and 9 out of 11 councils here are participating. We've only just seen a report (below) that Weev has won this, even though the tender was supposed to close late 2024 - but we've had no official announcements. However it is intended to provide an additional-or so AC chargers across NI. Mind you this link below doesn't inspire much confidence if elected reps are still trying to change locations - they should've been tied down when the tender was opened.
https://www.northernirelandworld.co...7AaV-d9tfSp62klPqiDtg6x2Nvl3gk9MOSdBZ3jKyCyg-WzmEFsp_aem_AxGrg5d4ICYqkLvfUXC56g
If you want a list of forthcoming projects see here;
https://evani.uk/northern-irelands-public-ev-charging-projects-a-summary/
EDIT; regards Ballynahinch, the original ecars network from more than 10 years ago was never set up with any lands agreements. That means that ESB ecars, who now have adopted that network, now have to negotiate with individual councils to replace chargers. These councils can be difficult to work with. Some are just bureaucratic, others are looking at trying to get revenue from land leases etc. Then ORCs has probably diverted attention as well. I think we'll find that some original locations may never be taken up again.