The now-broke former high-flying boss of the collapsed Grocon building empire has had to hand over his luxury New York apartment and faces potential action from liquidators.

Former Grocon executive chairman owes over $10 million to the ATO. His bankruptcy comes after settling a legal battle with NSW over a Barangaroo project.

The now-broke former high-flying boss of the collapsed Grocon building empire has had to hand over his luxury New York apartment and faces potential action from liquidators.