One57, the iconic 90-story luxury skyscraper dubbed the "The Billionaire Tower" by Carnegie Hall, is hit with a second foreclosure in just a month, according to a news report.

The full-floor penthouse on the 79th floor was bought in 2014 for $50.9 million and the owner took out a $35.5 million loan from a lender based in Luxembourg, according to Bloomberg.

The mortgage was due in full a year later, and the owner, a shell company by the name of One57 79 Inc. failed to pay, said the report.

Now, the apartment is up for auction on July 19. Many say it is the city's biggest residential foreclosure ever, said Bloomberg.

Another apartment on the 56th floor went into auction at the end of May after the owners defaulted on a $20.9 million loan.



Built by Extell Development Co., One57 is still home to the most expensive condominium in New York City, at $100 million, which is occupied.

There are 24 active listings under One57 as of Saturday, according to Streeteasy.com.