In his decision released yesterday, the judge ordered that Nielsen should stay bankrupted until at least November 23, 2015.
It was not in the public interest to discharge Nielsen, who Justice Venning said had not met his obligations as a bankrupt.
"Mr Nielsen has failed to understand or appreciate the consequences of his actions that led to his bankruptcy in the first place," the judge said.
"I accept the submission made on behalf of the assignee that Mr Nielsen has a clear predisposition to incur credit and take unacceptable risks with other people's money."
The judge described the bankrupt developer's personal circumstances as "hopeless".
"If Mr Nielsen was to be discharged from bankruptcy now, I consider it almost inevitable, despite his suggestion otherwise, that he would engage in further commercial property development in New Zealand, with further loss to banks, financial institutions, their investors and other creditors," he said.