The site was bought by supermarket owners Progressive Enterprises last year but more than $77 million was left owing by Mr Kells' four companies which operated the Soho development.
The Auckland businessman also has other liquidated companies that owe most of their money to banks.
The Kells-owned Marlin Property Consultants was placed into liquidation on March 16 with more than $120,000 owed to Inland Revenue. The liquidator's report on the business said the company's sole asset was a small coffee machine - a $3500 Jura S9 bought from Cafe Express in 2008.
Mr Kells' Gulf Harbour Marlin company owed $44 million to creditors, liquidator Simon Dalton said. Land and properties estimated to be valued at about $4 million are being sold to fund repayments to creditors.
Specific details of Mr Kells' bankruptcy were not available to the public, a spokesman for the Insolvency and Trustee Service said.
Typically bankruptcy, which lasts at least three years, restricts a person from leaving the country, managing a business or being employed by a relative without permission.
Mr Kells will be ordered to make payments towards debt and forced to surrender his assets. He will be entitled to keep the "necessary tools of trade", necessary household furniture, a motor vehicle worth no more than $5000 and money up to $1000.