Arcadia by Jim Crace

Victor, an eighty-year-old multimillionaire, surveys his empire from the remoteness of his cloud-capped penthouse. Expensively insulated from the outside world, he nonetheless finds that memories of his impoverished childhood will not be kept so easily at bay. Focusing on the one area of vitality and chaos that remains in the streets below him, he formulates a plan to leave a mark on the city – one as indelible and disruptive as the mark the city left on him.