Organization	6 Months Ended
Jun. 30, 2011
Organization [Abstract]
Organization	Note B Organization Registrant was originally organized as a partnership on September 25, 1958. On October 1, 1958, Registrant acquired fee title to One Grand Central Place, formerly known as the Lincoln Building, at the address 60 East 42nd Street, New York, New York (the “Building”) and the land there under (the “Property”). On November 28, 2001, Registrant converted to a limited liability company under New York law and is now known as 60 East 42nd St. Associates L.L.C. The conversion did not change any aspect of the assets and operations of Registrant other than to protect its participants from liability to third parties. Registrant’s members (“Members”) are Peter L. Malkin and Anthony E. Malkin (collectively, the “Agents”), each of whom also acts as an agent for holders of participations (“Participations”) in their respective member interest in Registrant (the “Participants”). The Members in Registrant hold senior positions at Malkin Holdings LLC (“Malkin Holdings” or “Supervisor”) (formerly Wien & Malkin LLC), One Grand Central Place, 60 East 42nd Street, New York, New York, which provides supervisory and other services to Registrant and to Lessee. See Note E below.

Organization

6 Months Ended

Jun. 30, 2011

Note B Organization

Registrant was originally organized as a partnership on September 25, 1958. On October 1, 1958, Registrant acquired fee title to One Grand Central Place, formerly known as the Lincoln Building, at the address 60 East 42nd Street, New York, New York (the “Building”) and the land there under (the “Property”). On November 28, 2001, Registrant converted to a limited liability company under New York law and is now known as 60 East 42nd St. Associates L.L.C. The conversion did not change any aspect of the assets and operations of Registrant other than to protect its participants from liability to third parties. Registrant’s members (“Members”) are Peter L. Malkin and Anthony E. Malkin (collectively, the “Agents”), each of whom also acts as an agent for holders of participations (“Participations”) in their respective member interest in Registrant (the “Participants”). The Members in Registrant hold senior positions at Malkin Holdings LLC (“Malkin Holdings” or “Supervisor”) (formerly Wien & Malkin LLC), One Grand Central Place, 60 East 42nd Street, New York, New York, which provides supervisory and other services to Registrant and to Lessee. See Note E below.