An isolated hilltop in the Brecon Beacons might seem an inhospitable place for a couple’s first home. But Adrian and Corinna both grew up in the area, and the ruined farmhouse they chose to restore had been in Adrian’s family for generations. The site’s lack of mains water and electricity gave them no qualms. True, the track up the hill was often inaccessible in winter. But the landscape was beautiful and they both felt they belonged there