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                                                                    EXHIBIT 23.2

                        CONSENT OF INDEPENDENT AUDITORS

    We consent to the reference to our firm under the caption "Experts" in the
Registration Statement Form S-3 and related Prospectus of SL Green Realty Corp.
(the "Company") for the registration of 1,173,232 shares of its common stock and
to the incorporation by reference therein of our reports (i) dated February 10,
1999, except for the last paragraph in Note 16, as to which the date is
March 12, 1999, with respect to the consolidated financial statements and
schedule of the Company for the year ended December 31, 1998 and for the period
August 21, 1997 (date of commencement of operations) to December 31, 1997,
(ii) dated February 10, 1998 with respect to the combined financial statements
of SL Green Predecessor for the period January 1, 1997 to August 20, 1997 and
for the year ended December 31, 1996 and (iii) dated February 10, 1998 with
respect to the combined financial statements of the uncombined joint ventures of
SL Green Predecessor for the period January 1, 1997 to August 20, 1997 and for
the year ended December 31, 1996, inlcuded in its Annual Report on Form 10-K of
the Company for the year ended December 31, 1998, filed with the Securities and
Exchange Commission. We also consent to the use of our reports (i) dated
March 19, 1999 with respect to the statement of revenues and certain expenses
for the 555 West 57(th) property for the year ended December 31, 1998, included
in its Form 8-K/A, dated January 25, 1999 and filed with the Securities and
Exchange Commission on April 9, 1999, (ii) dated August 3, 1999 with respect to
the statement of revenues and certain expenses for the Madison Properties for
the year ended December 31, 1998, included in its Form 8-K/A, dated May 24, 1999
and filed with the Securities and Exchange Commission on August 6, 1999, and
(iii) dated August 3, 1999 with respect to the statement of revenues and certain
expenses for the 90 Broad Street property for the fiscal year ended April 30,
1999, included in its Form 8-K/A, dated May 24, 1999 and filed with the
Securities and Exchange Commission on August 6, 1999.

                                              /s/ Ernst & Young LLP

New York, New York
February 14, 2000
