Organization	9 Months Ended
Sep. 30, 2012
Organization	Note B Organization Registrant is a New York limited liability company which was organized as a joint venture on May 25, 1953. On September 30, 1953, Registrant acquired fee title to the building known as 250 West 57^th Street (the “Building”), formerly known as the Fisk Building, and the land thereunder located at 250-264 West 57th Street, New York, New York (collectively, the “Property”). On November 30, 2001, Registrant converted to a limited liability company under New York law and is now known as 250 West 57^th 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 future liability to a third party. 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 interests in Registrant (the “Participants”). The Members in Registrant hold senior positions at Malkin Holdings LLC (“Malkin Holdings” or the “Supervisor”), One Grand Central Place, 60 East 42nd Street, New York, New York, which provides supervisory and other services to Registrant and Lessee. See Note E below.

Organization

9 Months Ended

Sep. 30, 2012

Note B Organization

Registrant is a New York limited liability company which was organized as a joint venture on May 25, 1953. On September 30, 1953, Registrant acquired fee title to the building known as 250 West 57^th Street (the “Building”), formerly known as the Fisk Building, and the land thereunder located at 250-264 West 57th Street, New York, New York (collectively, the “Property”). On November 30, 2001, Registrant converted to a limited liability company under New York law and is now known as 250 West 57^th 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 future liability to a third party. 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 interests in Registrant (the “Participants”). The Members in Registrant hold senior positions at Malkin Holdings LLC (“Malkin Holdings” or the “Supervisor”), One Grand Central Place, 60 East 42nd Street, New York, New York, which provides supervisory and other services to Registrant and Lessee. See Note E below.

- Definition

The entire disclosure for organization, consolidation and basis of presentation of financial statements disclosure.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 205

-SubTopic 10

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6359566&loc=d3e326-107755

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 852

-SubTopic 10

-URI http://asc.fasb.org/subtopic&trid=2209116

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 205

-SubTopic 10

-URI http://asc.fasb.org/subtopic&trid=2122150

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 205

-SubTopic 10

-Section 45

-Paragraph 3

-URI http://asc.fasb.org/extlink&oid=7668296&loc=d3e288-107754

Reference 5: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 275

-SubTopic 10

-URI http://asc.fasb.org/subtopic&trid=2134480

Reference 6: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 720

-SubTopic 15

-URI http://asc.fasb.org/subtopic&trid=2122524

Reference 7: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name FASB Staff Position (FSP)

-Number FAS140-4/FIN46(R)-8

-Paragraph 8, C1, C7

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 8: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 810

-SubTopic 10

-URI http://asc.fasb.org/subtopic&trid=2197480

Reference 9: http://www.xbrl.org/2003/role/presentationRef

-Publisher AICPA

-Name Statement of Position (SOP)

-Number 94-6

-Paragraph 10

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 10: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name FASB Interpretation (FIN)

-Number 46R

-Paragraph 4, 14, 15

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 11: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 235

-SubTopic 10

-Section 50

-Paragraph 3

-URI http://asc.fasb.org/extlink&oid=6367646&loc=d3e18780-107790

Reference 12: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 272

-SubTopic 10

-Section 50

-Paragraph 3

-URI http://asc.fasb.org/extlink&oid=6373374&loc=d3e70478-108055

Reference 13: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 810

-SubTopic 10

-Section 50

-Paragraph 8

-URI http://asc.fasb.org/extlink&oid=7880789&loc=SL6228881-111685

Reference 14: http://www.xbrl.org/2003/role/presentationRef

-Publisher AICPA

-Name Accounting Research Bulletin (ARB)

-Number 51

-Paragraph 2-6

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 15: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 810

-SubTopic 10

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=18733093&loc=d3e5614-111684

Reference 16: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 915

-SubTopic 235

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6472506&loc=d3e38932-110933

+ Details

250 WEST 57TH ST ASSOCIATES L.L.C. 10-Q