Drove passed this place en route to walk in the Hafren Forest. Sadly, the Forest which is part of Natural Rssources Wales' portfolio does not allow overnight stops in their car park, with toilet ( no water, sinks removed). Notices in place. The bunkhouse would make make ideal Aire as there is a complete lack of sites in the area.
I have messaged them via their Facebook page, asking about being able to stopover and providing a lino to CAMpRA with an introduction from me about the movement. No reply to date. I will email them once home.
https://hafrenforestbunkhouse.com/