Chicago Tribune reporter Mary Ellen Podmolik gives the latest update on the Chicago Spire.

The Irish developer behind the Chicago Spire said it has found an investor to pay its creditors, allowing it to emerge from bankruptcy and possibly restart work on the long-stalled residential project.

In papers filed with U.S. Bankruptcy Court Thursday, Shelbourne North Water Street LP, the firm headed by Irish developer Garrett Kelleher, is seeking court approval to move forward with an investment of up to $135 million from Atlas Apartment Holdings LLC, a Northbrook-based apartment development and management company.

While Shelbourne said the amount would enable it to pay bona fide bankruptcy claims in full, there is no detail in the court documents about the additional funds that would be needed to construct the twisting, 2,000-foot tower designed by Santiago Calatrava that was to be the tallest building in the Western Hemisphere. The 1,194-unit condo building captured people’s fascination but couldn’t get construction financing.

Kelleher was not available for comment, according to his attorney, Thomas Murphy.

"Given the ongoing recovery in the Chicago property market, the timing is better now than when this project commenced," Kelleher said in a statement. "I am delighted to have found a partner who believes in the project as passionately as I do."

Steven Ivankovich, Atlas’ CEO, said he was introduced by his bankers at Credit Suisse to Kelleher, and took an interest in the project because of his local roots and Kelleher’s vision. On paper, Atlas would be the majority partner in the joint venture, he said.

"I'm a Chicago guy," Ivankovich said. "I want to see Chicago regain its architectural crown. It's the greatest piece of development land I've ever seen."

The Spire site, at 400 N. Lake Shore Drive, has sat dormant since 2008,  after the project was caught up in the financial and housing markets' meltdown. The project, whose cost was estimated to be at least $1.5 billion, went into foreclosure in 2010 and a protracted legal battle began in several courts systems. It remains a 76-foot by 110-foot hole in the ground.

Last summer, Related Midwest, whose Chicago properties include luxury rental buildings at 500 N. Lake Shore Drive and the soon-to-open 111 W. Wacker, and condos in the South Loop, bought at a discount $93 million of delinquent debt and penalties tied to the project from National Asset Management Agency in Ireland. In November, an affiliate of Related filed a federal lawsuit against Kelleher seeking more than $95 million in guarantees he made as part of the project.

Also, in October, an involuntary bankruptcy petition was filed against Shelbourne by Related and other creditors. Shelbourne was given the exclusive right until March 10 to propose a reorganization plan to the court.

Under the proposed investment agreement filed with the court Thursday, Shelbourne would try to have a reorganization plan confirmed by the court by Aug. 31. In addition to paying all claims, that plan could involve the transfer of some or all of the property to Atlas, according to the filing.

Atlas would be entitled to a break-up fee of about $4 million plus up to $750,000 in expenses if Shelbourne does not have a reorganization plan confirmed by the court by Aug. 31 and have it take effect before Oct. 31, among other conditions.

Since the housing market’s downfall, apartment high-rise construction has taken off in downtown Chicago, but lenders have been more reluctant to finance condominium projects.

Kelleher put $188 million of his own money into the project, and the unpaid loan, the debt now owned by Related, was used to purchase the land, Murphy said.

"From the day we broke ground, we were looking for construction financing and we were still in touch with those lenders," he said.

Before the project faltered, one-third of the units, which started in the $700,000 range and went up to $40 million, were pre-sold, according to Michael Golden, co-founder of @properties, the Spire’s exclusive local marketing agent. About half the buyers who signed contracts were from outside the United States.

Beanie Babies creator and billionaire Ty Warner, recently sentenced to probation for tax evasion, became the highest profile buyer in the project, signing a contract in 2008 for a duplex penthouse unit that was listed for $40 million.

"Obviously, there was demand for what we were selling there," Golden said. The luxury market "wants big, well-designed space and they’ll pay. There's a definite hole in the marketplace right now for luxury product."

A spokeswoman for Related declined comment.

Atlas’ portfolio includes 75,000 apartment units nationwide and additional projects in Great Britain. Most of its domestic investment is in the Southwestern and Southeastern United States. | Twitter @mepodmolik