Live music and theatre promoter Michael Coppel has secured the biggest office sale in the Melbourne CBD so far this year after offloading a partially vacant B-grade building for about $35 million on a 4.6 per cent yield.

Mr Coppel, chairman of entertainment giant Live Nation Australia, and his fellow Melbourne investor George Blau, paid $10.7 million in December 2000 for the seven-storey office building at 333 Queen Street.