NEW YORK CITY-After several extensions, Gramercy Capital Corp. announced that Gramercy Realty’s $790-million mortgage and mezzanine loans came due today, without an additional extension or restructuring from the lenders.

It means that the holders of these loans--including Goldman Sachs Mortgage Co., SL Green Realty Corp. and Citicorp North America--are left to decide what to do with the collateral securing the loans, which includes properties owned by the company’s Gramercy Realty division.

The maturity of the loan marks the end of multiple extensions, dating back to March, which ultimately caused Gramercy Capital to file a notification of late filing for its 2010 10-K. That filing cited “the continuing uncertainty regarding when, how or if the Gramercy Realty Loans will be extended, modified, restructured or refinanced.”

A company release announcing the loans’ maturity indicates that talks are underway with lenders to work out transfer of the assets and possible continued management of them by Gramercy Capital, which is led by CEO Roger Cozzi. Citicorp and SL Green both declined to comment when contacted by GlobeSt.com and Goldman Sachs and Gramercy Capital did not return phone calls in time for publication.

It’s unclear what the properties in limbo are, but according to the Gramercy Capital website, its areas of focus includes retail, multifamily, industrial, lodging and office.