Hi welshnev, Capodolwyn ( spelling from my 1988 OS map ) is
a cottage on the side of Cusop hill. A bit of a landmark, visible from miles away. Grid ref is 248413. I've met 2 people who have lived there along time ago, but not for long, the cottage was usually rented out. They both complained of no electric and having to carry the water. Its in Herefordshire. Hope this helps.