Every morning in the austere 1980s, John Bruder reported for work at Carrisbrook House, a 1968 office block in Ballsbridge, Dublin 4. Overlooking PV Doyle’s old Jurys Hotel, the building—with its single-glazed windows and tired hexagonal design—was a dreary place. In winter it was freezing; in summer, stifling. But standards were lower then, and as a young property investment manager in AIB, still only in his twenties, Bruder expected little more. Four decades on, now a seasoned professional, he stood watching as the Tinnelly Group—the contractor he had appointed—brought the entire building down. “I have to say it gave me…