Condensed Balance Sheets (USD $)	Jun. 30, 2013	Dec. 31, 2012
Building: One Grand Central Place, located at 60 East 42nd Street and 301 Madison Avenue, New York, N.Y.
Total real estate, net	$ 70,538,558	$ 67,615,604
Cash and cash equivalents	1,295,087	2,095,727
Due from Supervisor, a related party	87,202	87,202
Receivable from Participants - NYS estimated tax	47,248
Rent receivable	11,075
Prepaid insurance		15,764
Deferred costs	3,669,736	3,310,685
Leasing costs, less accumulated amortization of $1,639,896 in 2013 and $1,749,117 in 2012	3,475,858	3,043,218
Mortgage refinancing costs, less accumulated amortization of $2,392,550 in 2013 and $2,188,848 in 2012	875,169	684,783
Total assets	79,999,933	76,852,983
Liabilities:
Mortgages payable	92,257,412	89,109,449
Accrued mortgage interest	423,929	417,546
Payable to Lessee, a related party	2,215,574	21,951
Due to Supervisor, a related party	805,699	789,033
Accrued expenses	14,533	4,415
Total liabilities	95,717,147	90,342,394
Commitments and contingencies
Members' deficiency (at March 31, 2013 and December 31, 2012, there were 700 units (at $10,000 per unit) of participation units outstanding)	(15,717,214)	(13,489,411)
Total liabilities and members' deficiency	79,999,933	76,852,983
Building [Member]
Building: One Grand Central Place, located at 60 East 42nd Street and 301 Madison Avenue, New York, N.Y.
Real estate	16,960,000	16,960,000
Less: accumulated depreciation	(16,960,000)	(16,960,000)
Building Improvements and Equipment [Member]
Building: One Grand Central Place, located at 60 East 42nd Street and 301 Madison Avenue, New York, N.Y.
Real estate	68,910,171	68,039,708
Less: accumulated depreciation	(14,794,995)	(13,918,390)
Total real estate, net	54,115,176	54,121,318
Tenant Improvements [Member]
Building: One Grand Central Place, located at 60 East 42nd Street and 301 Madison Avenue, New York, N.Y.
Real estate	12,636,874	8,779,779
Less: accumulated depreciation	(3,453,492)	(2,525,493)
Total real estate, net	9,183,382	6,254,286
Land [Member]
Building: One Grand Central Place, located at 60 East 42nd Street and 301 Madison Avenue, New York, N.Y.
Total real estate, net	$ 7,240,000	$ 7,240,000