SL GREEN REALTY CORP
S-3, 1998-12-07
OPERATORS OF NONRESIDENTIAL BUILDINGS
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<PAGE>
    AS FILED WITH THE SECURITIES AND EXCHANGE COMMISSION ON DECEMBER 7, 1998
 
                                            REGISTRATION STATEMENT NO. 333-
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
 
                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549
                            ------------------------
 
                                    FORM S-3
 
                             REGISTRATION STATEMENT
                                     UNDER
                           THE SECURITIES ACT OF 1933
                         ------------------------------
 
                             SL GREEN REALTY CORP.
             (Exact name of registrant as specified in its charter)
 
<TABLE>
<S>                                                             <C>
                           MARYLAND                                                       13-3956775
(State or other jurisdiction of incorporation or organization)             (I.R.S. employer identification number)
</TABLE>
 
                         ------------------------------
 
                             70 WEST 36(TH) STREET
                            NEW YORK, NEW YORK 10018
                                 (212) 594-2700
  (Address, including zip code, and telephone number, including area code, of
                   registrant's principal executive offices)
                         ------------------------------
 
                                STEPHEN L. GREEN
                      CHAIRMAN AND CHIEF EXECUTIVE OFFICER
                             70 WEST 36(TH) STREET
                            NEW YORK, NEW YORK 10018
                                 (212) 594-2700
 (Name, address, including zip code, and telephone number, including area code,
                             of agent for service)
                         ------------------------------
 
                                    COPY TO:
                            MICHAEL F. TAYLOR, ESQ.
                                BROWN & WOOD LLP
                       ONE WORLD TRADE CENTER, 58TH FLOOR
                              NEW YORK, N.Y. 10048
                                 (212) 839-8602
                         ------------------------------
 
    APPROXIMATE DATE OF COMMENCEMENT OF PROPOSED SALE OF PUBLIC: From time to
time after this Registration Statement becomes effective.
 
    If the only securities being registered on this form are being offered
pursuant to dividend or interest reinvestment plans, please check the following
box. / /
 
    If any of the securities being registered on this form are to be offered on
a delayed or continuous basis pursuant to Rule 415 under the Securities Act of
1933, as amended (the "Securities Act"), other than securities offered only in
connection with dividend or interest reinvestment plans, please check the
following box. /X/
 
    If this Form is filed to register additional securities for an offering
pursuant to Rule 462(b) under the Securities Act, please check the following box
and list the Securities Act registration statement number of the earlier
effective registration statement for the same offering. / /
 
    If this Form is a post-effective amendment filed pursuant to Rule 462(c)
under the Securities Act, check the following box and list the Securities Act
registration statement number of the earlier effective registration statement
for the same offering. / /
 
    If delivery of the prospectus is expected to be made pursuant to Rule 434,
please check the following box. /X/
                         ------------------------------
 
                        CALCULATION OF REGISTRATION FEE
 
<TABLE>
<CAPTION>
                                                                                           PROPOSED MAXIMUM       AMOUNT OF
                                                                                          AGGREGATE OFFERING     REGISTRATION
                          TITLE OF EACH CLASS OF SECURITIES(1)                               PRICE(2)(3)            FEE(2)
<S>                                                                                       <C>                 <C>
Preferred Stock, $0.01 par value........................................................
Common Stock, $0.01 par value...........................................................     $400,000,000          $111,200
</TABLE>
 
(1) This Registration Statement also covers delayed delivery contracts which may
    be issued by the Registrant under which the counterparty may be required to
    purchase shares of preferred stock or common stock. Such contracts may be
    issued together with the specific Securities to which they relate. In
    addition, Securities registered hereunder may be sold separately, together
    or as units with other Securities registered hereunder.
 
(2) The registration fee has been calculated in accordance with Rule 457(o)
    under the Securities Act of 1933, as amended.
 
(3) Estimated solely for purposes of calculating the registration fee. No
    separate consideration will be received for shares of common stock that are
    issued upon conversion of shares of preferred stock or Depositary Stock
    registered hereunder. The aggregate maximum offering price of all Securities
    issued pursuant to this Registration Statement will not exceed $400,000,000.
                         ------------------------------
 
    THE REGISTRANT HEREBY AMENDS THIS REGISTRATION STATEMENT ON SUCH DATE OR
DATES AS MAY BE NECESSARY TO DELAY ITS EFFECTIVE DATE UNTIL THE REGISTRANT SHALL
FILE A FURTHER AMENDMENT WHICH SPECIFICALLY STATES THAT THIS REGISTRATION
STATEMENT SHALL THEREAFTER BECOME EFFECTIVE WITH SECTION 8(A) OF THE SECURITIES
ACT OF 1933 OR UNTIL THE REGISTRATION STATEMENT SHALL BECOME EFFECTIVE ON SUCH
DATE AS THE COMMISSION, ACTING PURSUANT TO SAID SECTION 8(A), MAY DETERMINE.
 
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
<PAGE>
PROSPECTUS
 
                                  $400,000,000
 
                                     [LOGO]
 
                        COMMON STOCK AND PREFERRED STOCK
- --------------------------------------------------------------------------------
 
    We may offer from time to time under this prospectus our common stock and
preferred stock, which may be convertible into common stock, (collectively, the
"securities") with an aggregate initial offering price of $400,000,000 on terms
to be determined at the time of offering. We may issue the securities separately
or together in one or more series, in amounts, at prices and on terms described
in one or more prospectus supplements. The prospectus supplement for each
offering of securities will contain specific information and terms for that
offering. Such terms will include, where applicable, any initial public offering
price of any common stock and the specific title and stated liquidation value,
any distribution, liquidation, redemption, conversion, voting and other rights
and initial public offering price of preferred stock.
 
    The prospectus supplement may also add, update or change information
contained in this prospectus. It is important that you read both this prospectus
and the prospectus supplement before you invest. The prospectus supplement will
also contain information, where applicable, about certain United States federal
income tax considerations relating to, and any listing on a security exchange
of, the securities covered by the prospectus supplement.
 
    Investing in the securities involves certain risks. Risk Factors begin on
page 4.
 
    We may offer the securities directly, through agents, or to or through
underwriters. The prospectus supplement will describe the terms of that plan of
distribution and set forth the names of any underwriters involved in the sale of
the securities. See "Plan of Distribution" on page 21 for more information on
this topic. No securities may be sold without delivery of a prospectus
supplement describing the method and terms of the offering of those securities.
 
    Neither the Securities and Exchange Commission nor any state securities
commission has approved or disapproved of these securities or passed upon the
adequacy of this prospectus. Any representation to the contrary is a criminal
offense.
 
December 7, 1998
<PAGE>
                FORWARD-LOOKING STATEMENTS MAY PROVE INACCURATE
 
    This document (and the documents that are incorporated by reference) contain
forward-looking statements that are subject to risks and uncertainties.
Shareholders are cautioned not to place undue reliance on such statements which
only speak as of the date hereof. Forward-looking statements include information
concerning possible or assumed future results of our operations, including any
forecasts, projections and plans and objections for future operations. You can
identify forward looking statements by the use of forward looking expressions
like "may," "will," "should," "expect," "anticipate," "estimate," or "continue"
or any negative or other variations on such expressions. Many factors could
affect our actual financial results, and could cause actual results to differ
materially from those in the forward-looking statements. These factors include
the following:
 
    - general economic or business conditions, either nationally or in New York
      City, being less favorable than expected;
 
    - demand for office space;
 
    - risks of real estate acquisition;
 
    - availability and creditworthiness of prospective tenants;
 
    - adverse changes in the real estate markets;
 
    - unanticipated increases occurring in financing and other costs;
 
    - competition with other companies;
 
    - legislative or regulatory changes adversely affecting real estate
      investment trusts and the real estate business; and
 
    - environmental and/or safety requirements.
 
    We undertake no obligation to publicly update or revise any forward-looking
statements, whether as a result of new information, future events or otherwise.
In light of these risks and uncertainties, the forward-looking events and
circumstances discussed in this prospectus might not occur.
 
                              -------------------
 
    You should rely only on the information contained or incorporated by
reference in this prospectus. We have not, and the underwriters have not,
authorized anyone to provide you with different information. If anyone provides
you with different or inconsistent information, you should not rely on it. We
are not, and the underwriters are not making an offer to sell these securities
in any jurisdiction where the offer or sale is not permitted. You should not
assume that the information contained or incorporated by reference in this
prospectus is accurate as of any date other than the date on the front cover of
this prospectus. Our business, financial condition, results of operations and
prospects may have changed since that date.
 
                      WHERE YOU CAN FIND MORE INFORMATION
 
    We file annual, quarterly and current reports, proxy statements and other
information with the Securities and Exchange Commission (the "SEC"). You may
read and copy any reports, statements or other information we file at the SEC's
public reference rooms located at Judiciary Plaza, 450 Fifth Street, N.W.,
Washington, D.C. 20549, Citicorp Center, 500 West Madison Street, Suite 1400,
Chicago, IL 60661 and 7 World Trade Center, Suite 1300, New York, NY 10048.
Please call the SEC at 1-800-SEC-0330 for further information on the public
reference rooms. Our SEC filings are also available to the public from
commercial document retrieval services and at the web site maintained by the SEC
at "http://www.sec.gov."
 
                                       2
<PAGE>
    We have filed a Registration Statement on Form S-3, of which this Prospectus
forms a part, to register the securities with the SEC. As allowed by SEC rules,
this Prospectus does not contain all the information you can find in the
Registration Statement or the exhibits to the Registration Statement.
 
    The SEC allows us to "incorporate by reference" information into this
Prospectus, which means that we can disclose important information to you by
referring you to another document filed separately with the SEC. The information
incorporated by reference is deemed to be part of this Prospectus, except for
any information superseded by information in this Prospectus. This Prospectus
incorporates by reference the documents set forth below that we have previously
filed with the SEC. These documents contain important information about us, our
business and our finances.
 
<TABLE>
<CAPTION>
DOCUMENT                                                                         PERIOD
                                                             ----------------------------------------------
<S>                                                          <C>
 
Annual Report on Form 10-K.................................  Year ended December 31, 1997
 
Quarterly Reports on Form 10-Q.............................  Quarters ended March 31, 1998, June 30, 1998
                                                             and September 30, 1998
</TABLE>
 
<TABLE>
<CAPTION>
                                                                     DATED                   FILED
                                                             ----------------------  ----------------------
 
<S>                                                          <C>                     <C>
Current Reports on Form 8-K................................  December 18, 1997       January 2, 1998
                                                             February 3, 1998        February 3, 1998
                                                             March 18, 1998          March 31, 1998
                                                             April 24, 1998          May 11, 1998
                                                             August 14, 1998         August 20, 1998
                                                             November 11, 1998       November 18, 1998
</TABLE>
 
<TABLE>
<CAPTION>
                                                                     DATED                   FILED
                                                             ----------------------  ----------------------
 
<S>                                                          <C>                     <C>
Amendments to Current Reports on Form 8-K..................  December 18, 1997       January 5, 1998
                                                             December 18, 1997       March 3, 1998
                                                             March 18, 1998          May 11, 1998
                                                             August 14, 1998         October 28, 1998
</TABLE>
 
    Any documents which we file pursuant to Sections 13(a), 13(c), 14 or 15(d)
of the Exchange Act after the date of this Prospectus but before the end of any
offering of securities made under this Prospectus will also be considered to be
incorporated by reference.
 
    If you request, either orally or in writing, we will provide you with a copy
of any or all documents which are incorporated by reference. Such documents will
be provided to you free of charge, but will not contain any exhibits, unless
those exhibits are incorporated by reference into the document. Written requests
should be addressed to Benjamin Feldman, Esq., SL Green Realty Corp., 70 West
36(th) Street, New York, NY 10018.
 
                                       3
<PAGE>
                           INFORMATION ABOUT SL GREEN
 
    SL Green was the first fully integrated, self administered and self managed
equity real estate investment trust ("REIT") to own, manage, lease, acquire and
reposition only Class B office properties in Manhattan. We own all our assets
and conduct substantially all our business through the Operating Partnership. We
are the managing general partner of the Operating Partnership and as of
September 30, 1998, we owned 90.80% of the outstanding partnership interests in
the Operating Partnership. As used in this Prospectus, "SL Green," "the
Company," "us" or "we" refers to SL Green Realty Corp. and its subsidiaries,
including the Operating Partnership, and the "Operating Partnership" refers to
SL Green Operating Partnership, L.P.
 
    The term "Class B" is generally used in the Manhattan office market to
describe office properties which are more than 25 years old but are in good
physical condition, enjoy widespread acceptance by high-quality tenants and are
situated in desirable locations in Manhattan. Class B office properties can be
distinguished from Class A properties in that Class A properties are generally
newer properties with higher finishes and obtain the highest rental rates within
their markets.
 
    A variety of tenants who do not require, desire or cannot afford Class A
space are attracted to Class B office properties due to their prime locations,
excellent amenities, distinguished architecture and relatively less expensive
rental rates. Class B office space has historically attracted many smaller,
growth oriented firms (many of which have fueled the recent growth in the New
York metropolitan economy) and has played a critical role in satisfying the
space requirements of particular industry groups in Manhattan, such as the
advertising, apparel, business services, engineering, not-for-profit, "new
media" and publishing industries. In addition, several areas of Manhattan,
including many in which particular trades or industries traditionally
congregate, are dominated by Class B office space and contain no or very limited
Class A office space. Examples of such areas include the Garment District, the
Flatiron District, the areas immediately south and north of Houston Street
("Soho" and "Noho", respectively), Chelsea, and the area surrounding the United
Nations. Certain industries are significantly concentrated in such areas,
including the following industries: new media, garment, toy, jewelry, interior
decoration, antiques, giftware, contract furnishing and United Nations-related
businesses. The concentration of such businesses creates strong demand for the
available Class B office space in those locations.
 
    We were incorporated in the State of Maryland on June 10, 1997. Our
executive offices are located at 70 West 36(th) Street, New York, New York
10018-8007 and our telephone number is (212) 594-2700.
 
                                  RISK FACTORS
 
    Set forth below are risks that we believe are material to investors who
purchase or own common stock or preferred stock. We refer to the common stock
and the preferred stock together as "securities" and the investors who own the
securities as our "shareholders."
 
OUR DEPENDENCE ON THE MARKET FOR OFFICE SPACE IN MIDTOWN MANHATTAN COULD
  ADVERSELY AFFECT OUR FINANCIAL PERFORMANCE
 
    Most of our office properties, which we refer to as our "Properties," are
located in midtown Manhattan. As a result, our business (and our ability to make
distributions to shareholders) is largely dependent on the condition of the New
York City economy in general and the market for office space in midtown
Manhattan, in particular. While recent demand for office space in midtown
Manhattan has been strong, the the market for office space for midtown Manhattan
has experienced downturns in the past, most recently in the late 1980's and the
early 1990's, and a decline in the demand for office space in midtown Manhattan
could adversely affect our business and, consequently, our ability to make
distributions to shareholders. There can be no assurance as to the continued
growth of the New York City economy, the continued strength of the market for
office space in midtown Manhattan or the future growth rate of our business.
 
                                       4
<PAGE>
THERE CAN BE NO ASSURANCE THAT WE WILL EFFECTIVELY MANAGE OUR RAPID GROWTH
 
    We are currently growing rapidly. As of September 30, 1998, we owned
interests in 18 office properties containing 6.25 million square feet. Our
office portfolio grew by 182% (on a square footage basis) from the time of our
initial public offering (our "IPO") in August 1997 through September 30, 1998.
We plan to continue to acquire office properties in Manhattan at a pace
commensurate with our ability to identify properties meeting our investment
criteria and ability to fund such acquisitions. We plan on managing this growth
by applying our experience to new properties and expect to be successful in that
effort. If we do not effectively manage our rapid growth, however, we may not be
able to make expected distributions to our shareholders.
 
OUR PERFORMANCE AND THE VALUE OF OUR SECURITIES ARE SUBJECT TO RISKS ASSOCIATED
  WITH THE REAL ESTATE INDUSTRY
 
    GENERAL.  If our assets do not generate income sufficient to pay our
expenses, service our debt and maintain our properties, we may not be able to
make expected distributions to our shareholders. Several factors may adversely
affect the economic performance and value of our properties. These factors
include changes in the national, regional and local economic climate (including
that of midtown Manhattan), local conditions such as an oversupply of office
properties or a reduction in demand for office properties, the attractiveness of
our properties to tenants, competition from other available office properties,
changes in market rental rates and the need to periodically repair, renovate and
relet space. Our performance also depends on our ability to collect rent from
tenants and to pay for adequate maintenance, insurance and other operating costs
(including real estate taxes), which could increase over time. Also, the
expenses of owning and operating a property are not necessarily reduced when
circumstances such as market factors and competition cause a reduction in income
from the property. If a property is mortgaged and we are unable to meet the
mortgage payments, the lender could foreclose on the mortgage and take the
property. In addition, interest rate levels, the availability of financing,
changes in laws and governmental regulations (including those governing usage,
zoning and taxes) and the possibility of bankruptcies of tenants may adversely
affect our financial condition.
 
    WE MAY BE UNABLE TO RENEW LEASES OR RELET SPACE AS LEASES EXPIRE.  When our
tenants decide not to renew their leases upon their expiration, we may not be
able to relet the space. Even if tenants do renew or we can relet the space, the
terms of renewal or reletting (including the cost of required renovations) may
be less favorable than current lease terms. Over the next five years (through
the end of 2003), leases will expire on approximately 38% of the rentable square
feet at our Properties. If we are unable to promptly renew the leases or relet
this space, or if the rental rates upon such renewal or reletting are
significantly lower than expected rates, then our results of operations and
financial condition will be adversely affected. Consequently, our cash flow and
ability to service debt and make distributions to shareholders would be
adversely affected.
 
    IN THE EVENT WE MAKE INVESTMENTS WITH THIRD PARTIES, WE MAY NOT CONTROL SUCH
INVESTMENTS AND MAY BE DEPENDENT UPON A CO-VENTURER'S FINANCIAL CONDITION. From
time to time, we may invest in properties with third parties. Depending upon how
such investments are structured, we may have to share control of the direction
of such investments with third parties whose economic interests and goals may be
inconsistent with our economic interests and goals. In addition, we may be
subject to risks relating to such third parties' financial condition, including
the possibility that such third parties or co-venturers may become insolvent,
seek protection in bankruptcy or otherwise fail to meet their financial
obligations. Finally, under some circumstances, we may become liable for the
actions or obligations of such third parties and co-venturers.
 
    THE EXPIRATION OF NET LEASES AND OPERATING SUBLEASES COULD ADVERSELY AFFECT
OUR FINANCIAL CONDITION. With respect to five of our Properties, we hold a
long-term leasehold or operating sublease interest in the land and the
improvements. Accordingly, unless we can purchase the subject real estate or
extend the terms of
 
                                       5
<PAGE>
these leases before their expiration, we will lose our interest in the
improvements and land upon expiration of the leases.
 
    RELIANCE ON MAJOR TENANTS COULD ADVERSELY AFFECT OUR FINANCIAL
CONDITION.  Giving effect to signed leases in effect as of September 30, 1998
for properties owned as of September 30, 1998, five tenants each accounted for
more than 1.6% of our pro forma total annualized rental revenues and such
tenants collectively accounted for approximately 11.3% of our total annualized
rental revenues. Our business would be adversely affected if any of these
tenants became insolvent, declared bankruptcy or otherwise refused to pay rent
in a timely fashion or at all.
 
DEBT FINANCING, FINANCIAL COVENANTS, DEGREE OF LEVERAGE, AND INCREASES IN
  INTEREST RATES COULD ADVERSELY AFFECT OUR ECONOMIC PERFORMANCE
 
    SCHEDULED DEBT PAYMENTS COULD ADVERSELY AFFECT OUR FINANCIAL CONDITION.  Our
business is subject to risks normally associated with debt financing. Cash flow
could be insufficient to pay distributions at expected levels and meet required
payments of principal and interest. We may not be able to refinance existing
indebtedness (which in virtually all cases requires substantial principal
payments at maturity) and, if we can, the terms of such refinancing might not be
as favorable as the terms of existing indebtedness. The total principal amount
of our outstanding indebtedness was $133.4 million as of September 30, 1998. If
principal payments due at maturity cannot be refinanced, extended or paid with
proceeds of other capital transactions, such as new equity capital, our cash
flow will not be sufficient in all years to repay all maturing debt. If
prevailing interest rates or other factors at the time of refinancing (such as
the possible reluctance of lenders to make commercial real estate loans) result
in higher interest rates, increased interest expense would adversely affect cash
flow and our ability to service debt and make distributions to shareholders.
 
    FINANCIAL COVENANTS COULD ADVERSELY AFFECT OUR FINANCIAL CONDITION.  If a
property is mortgaged to secure payment of indebtedness and we are unable to
meet mortgage payments, the mortgagee could foreclose on the property, resulting
in loss of income and asset value. The mortgages on our Properties contain
customary negative covenants which, among other things, limit our ability,
without the prior consent of the lender, to further mortgage the property, to
enter into new leases or materially modify existing leases, and to discontinue
insurance coverage. In addition, our credit facility contains certain customary
restrictions, requirements and other limitations on our ability to incur
indebtedness, including total debt to assets ratios, secured debt to total
assets ratios, debt service coverage ratios and minimum ratios of unencumbered
assets to unsecured debt. Foreclosure on mortgaged properties or an inability to
refinance existing indebtedness would likely have a negative impact on our
financial condition and results of operations.
 
    RISING INTEREST RATES COULD ADVERSELY AFFECT OUR CASH FLOW.  Advances under
our revolving credit facility will bear interest at a variable rate. In
addition, we may incur indebtedness in the future that also bears interest at a
variable rate or may be required to refinance our debt at higher rates.
Accordingly, increases in interest rates could increase our interest expense,
which could adversely affect our ability to continue to make distributions to
shareholders.
 
    OUR POLICY OF NO LIMITATION ON DEBT COULD ADVERSELY AFFECT OUR CASH
FLOW.  September 30, 1998, our debt to market capitalization ratio ("Debt
Ratio") was approximately 16.6% on a fully diluted basis, but we plan to
increase our Debt Ratio in connection with future acquisitions. Our policy is to
incur debt only if upon such incurrence our Debt Ratio would be 50% or less.
However, our organizational documents do not contain any limitation on the
amount of indebtedness we may incur. Accordingly, our Board of Directors could
alter or eliminate this policy and would do so, for example, if it were
necessary in order for us to continue to qualify as a REIT, or to provide
capital for investment, if our Board of Directors determines that such an action
is in the best interests of our business. If this policy were changed, we could
become more highly leveraged, resulting in an increase in debt service that
could adversely affect cash available for distribution to shareholders and could
increase the risk of default on our indebtedness.
 
                                       6
<PAGE>
    We have established our debt policy relative to the total market
capitalization of our business rather than relative to the book value of our
assets. We use total market capitalization because we believe that the book
value of our assets (which to a large extent is the depreciated original cost of
our Properties, our primary tangible assets) does not accurately reflect our
ability to borrow and to meet debt service requirements. Our market
capitalization, however, is more variable than book value, and does not
necessarily reflect the fair market value of our assets at all times. We also
will consider factors other than market capitalization in making decisions
regarding the incurrence of indebtedness, such as the purchase price of
properties to be acquired with debt financing, the estimated market value of our
Properties upon refinancing and the ability of particular Properties and our
business as a whole to generate cash flow to cover expected debt service.
 
SHAREHOLDERS' ABILITY TO EFFECT CHANGES IN CONTROL OF OUR COMPANY IS LIMITED
 
    PROVISIONS OF OUR ARTICLES OF INCORPORATION AND BYLAWS COULD INHIBIT CHANGES
IN CONTROL. Certain provisions of our Articles of Incorporation and Bylaws may
delay or prevent a change in control of our Company or other transaction that
could provide our shareholders with a premium over the then-prevailing market
price of their stock or which might otherwise be in their best interests. These
include a staggered Board of Directors and the Ownership Limit described below.
Also, any future series of preferred stock may have certain voting provisions
that could delay or prevent a change of control or other transaction that might
involve a premium price or otherwise be good for our shareholders.
 
    WE HAVE A SHARE OWNERSHIP LIMIT FOR REIT TAX PURPOSES.  To remain qualified
as a REIT for federal income tax purposes, not more than 50% in value of our
outstanding capital stock may be owned, directly or indirectly, by five or fewer
individuals (as defined in the federal income tax laws applicable to REITs) at
any time during the last half of any year. To facilitate maintenance of our REIT
qualification, our Articles of Incorporation, subject to certain exceptions,
prohibit ownership by any single shareholder of more than 9.0% (in value or
number of shares, whichever is more restrictive) of any class or series of
stock. We refer to this as the "Ownership Limit." Our Articles of Incorporation
permit our Board of Directors to increase the Ownership Limit with respect to
any class or series of stock. Further, our Board of Directors must waive or
modify the Ownership Limit with respect to a shareholder who would not be
treated as an "individual" for purposes of the tax code if such shareholder's
ownership in excess of the limit will not cause a shareholder who is an
individual to be treated as owning stock in excess of the Ownership Limit or
otherwise jeopardize our REIT status. Absent any such exemption or waiver, stock
acquired or held in violation of the Ownership Limit will be transferred to a
trust for the exclusive benefit of a designated charitable beneficiary, and the
shareholder's rights to distributions and to vote would terminate. Such
shareholder would be entitled to receive, from the proceeds of any subsequent
sale of the shares transferred to the charitable trust, the lesser of (i) the
price paid for the stock or, if the owner did not pay for the stock (for
example, in the case of a gift, devise or other such transaction), the market
price of the stock on the date of the event causing the stock to be transferred
to the charitable trust or (ii) the amount realized from such sale. A transfer
of stock may be void if it causes a person to violate the Ownership Limit. The
Ownership Limit could delay or prevent a change in control and, therefore, could
adversely affect our shareholders' ability to realize a premium over the
then-prevailing market price for their stock.
 
    FUTURE ISSUANCES OF COMMON STOCK COULD DILUTE EXISTING SHAREHOLDERS'
INTERESTS.  Our Articles of Incorporation authorize our Board of Directors to
issue additional shares of common stock without shareholder approval. Any such
issuance could dilute our existing shareholders' interests.
 
    CERTAIN PROVISIONS OF MARYLAND LAW COULD INHIBIT CHANGES IN
CONTROL.  Certain provisions of the Maryland General Corporation Law (known as
the "MGCL") may have the effect of inhibiting a third party from making an
acquisition proposal for our company or of impeding a change in control of our
company under circumstances that otherwise could provide holders of our common
stock with the opportunity to realize a premium over the then-prevailing market
price of such shares.
 
                                       7
<PAGE>
OUR DEPENDENCE ON SMALLER AND GROWTH-ORIENTED BUSINESSES TO RENT CLASS B OFFICE
  SPACE COULD ADVERSELY AFFECT OUR CASH FLOW
 
    Many of the tenants in our Properties are smaller, growth-oriented
businesses that may not have the financial strength of larger corporate tenants.
Smaller companies generally experience a higher rate of failure than large
businesses. Growth-oriented firms may seek other office space, including Class A
space, as they develop. Dependence on these companies could create a higher risk
of tenant defaults and bankruptcies, which could adversely affect our
distributable cash flow and ability to continue to make distributions to
shareholders.
 
CONFLICTS OF INTEREST IN CONNECTION WITH THE FORMATION TRANSACTIONS AND THE
  BUSINESS OF THE COMPANY
 
    Stephen L. Green, members of his immediate family and other parties who
contributed property during our formation may experience more adverse tax
consequences than other shareholders or unitholders in the event we sell, or
reduce the mortgage indebtedness on, any of our Properties. As a result, such
unitholders' objectives with regard to the timing and pricing of any sale, or
reduction of the mortgage indebtedness on, any of our Properties may be
different or adverse to other shareholders and unitholders. As of September 30,
1998 Mr. Green and members of his immediate family beneficially owned 8.1% of
the outstanding units of the Operating Partnership. As used herein, "units"
refers to units of limited partnership in the Operating Partnership and
"unitholders" refers to the holders of such units.
 
    FAILURE TO ENFORCE TERMS OF CONTRIBUTION AND OTHER AGREEMENTS.  The
transactions, which we call the "Formation Transactions," which resulted in our
formation and initial public offering in August, 1997 were not negotiated at
arm's length. The representations and warranties made by entities which
contributed property to us in the formation transactions and the indemnification
provided to us for breaches of such representations and warranties might not be
as good as they might have been had they been negotiated at arm's length. In
addition, because Mr. Green and other members of management were affiliates of
certain entities which contributed properties in the Formation Transactions, and
received units in return, Mr. Green and such members of management have a
conflict of interest with respect to their obligations as directors or executive
officers of SL Green in enforcing the terms (including customary representations
and warranties as to ownership and operations) of the agreement pursuant to
which such Properties were contributed to our company. The failure to enforce
the material terms of those agreements, particularly the indemnification
provisions for breaches of representations and warranties, could result in a
monetary loss to us, which could have a material adverse effect on our financial
condition or results of operations. In addition, the aggregate liability of Mr.
Green and other members of management under those agreements is limited to
approximately $20 million (the initial value of the units they received in the
Formation Transactions based on the IPO price of the common stock) with no
liability being assumed until the aggregate liability exceeds $250,000. In
addition, Mr. Green, David J. Nettina, Nancy A. Peck, Steven H. Klein, Benjamin
P. Feldman, Marc Holliday and Gerard Nocera have entered into employment and
noncompetition agreements with us pursuant to which they have agreed, among
other things, not to engage in certain business activities in competition with
us. To the extent that we choose to enforce our rights under any of these
agreements, we may determine to pursue available remedies, such as actions for
damages or injunctive relief, less vigorously than we otherwise might because of
our desire to maintain our ongoing relationship with the individual involved.
 
    CONFLICTS OF INTEREST WITH AFFILIATES.  Two entities owned by one of Mr.
Green's sons (First Quality Maintenance, L.P. and Classic Security LLC)
currently provide cleaning and security services to office properties, including
our Properties. Although we believe that the terms and conditions of the
contracts pursuant to which these services are provided are no less favorable to
us than those which could be obtained from a third party providing comparable
services, such contracts are not the result of arm's length negotiations and,
therefore, there can be no assurance to this effect. We have adopted certain
policies relating to conflicts of interest. These policies include a resolution
adopted by our Board of Directors that requires all transactions in which
executive officers or directors have a material conflicting interest to that
 
                                       8
<PAGE>
of SL Green to be approved by a majority of the disinterested directors or by
the holders of a majority of the shares of common stock held by disinterested
shareholders. There can be no assurance, however, that these policies will be
successful in eliminating the influence of such conflicts, and if they are not
successful, decisions could be made that might fail to reflect fully the
interests of all shareholders.
 
    OUTSIDE INTERESTS OF OFFICERS AND DIRECTORS COULD CONFLICT WITH OUR
INTERESTS.  Certain of our officers and directors own direct and indirect
interests in office properties and other real estate assets and these interests
may give rise to certain conflicts of interest concerning the fulfillment of
their responsibilities as officers and directors of SL Green.
 
WE RELY ON KEY PERSONNEL WHOSE CONTINUED SERVICE IS NOT GUARANTEED
 
    We are dependent on the efforts of our executive officers, Mr. Green, Nancy
A. Peck, David J. Nettina, Steven H. Klein, Benjamin P. Feldman, Gerard Nocera,
Ann Iseley and Marc Holliday. The loss of their services could have a material
adverse effect on our operations. Mr. Green has interests in various properties
in Manhattan and a property located in Pennsylvania. It is expected that Mr.
Green will not devote a substantial amount of time to the management or
operation of these other properties and these other properties are exempt from
the non-competition provisions of Mr. Green's employment and non-competition
agreement. Each of our executive officers, except Ms. Iseley, has entered into
an employment and noncompetition agreement with us which provides, among other
items, that each such person will devote substantially all of his or her
business time to our company.
 
SHAREHOLDER APPROVAL IS NOT REQUIRED TO CHANGE OUR POLICIES
 
    Our investment, financing, borrowing and distribution policies and our
policies with respect to all other activities, including qualification as a
REIT, growth, debt, capitalization and operations, are determined by our Board
of Directors. Although it has no present intention to do so, our Board of
Directors may amend or revise these policies at any time and from time to time
at its discretion without a vote of our shareholders. A change in these policies
could adversely affect our financial condition, results of operations or the
market price of the common stock.
 
LIMITATIONS ON ABILITY TO SELL OR REDUCE THE MORTGAGE INDEBTEDNESS ON CERTAIN
  PROPERTIES COULD ADVERSELY AFFECT THE VALUE OF THE STOCK
 
    We have agreed to certain restrictions relating to future transactions
involving three of our Properties, which we call the "Lock-out Provisions."
Pursuant to the Lock-out Provisions, we generally may not sell our interest in,
or earlier than one year prior to maturity, reduce the mortgage indebtedness
(other than pursuant to scheduled amortization) on 673 First Avenue, 470 Park
Avenue South or 711 Third Avenue during the Lock-out Period without the approval
of unit holders holding at least 75% of the units issued in consideration of
such properties. In addition, during the Lock-out Period, we are obligated to
use commercially reasonable efforts, beginning one year prior to the stated
maturity, to refinance at maturity (on a basis that is nonrecourse to the
Operating Partnership and us, with the least amount of principal amortization as
is available on commercially reasonable terms) the mortgage indebtedness secured
by each of these Properties at not less than the principal amount outstanding on
the maturity date. Finally, during the Lock-out Period, we may not incur debt
secured by any of these Properties if the amount of the new debt would exceed
the greater of 75% of the value of the property securing the debt or the amount
of existing debt being refinanced (plus costs associated therewith). As used
herein "Lock-Out Period" refers to the time period during which restrictions
contained in the Lock Out Provisions apply.
 
    The Lock-out Provisions may impair our ability to take actions during the
Lock-out Period that would otherwise be in your best interests and, therefore,
may have an adverse impact on the value of the stock (relative to the value that
would result if the Lock-out Provisions did not exist). In particular, the
Lock-out Provisions could preclude the Operating Partnership (and thus us) from
participating in certain major
 
                                       9
<PAGE>
transactions that could result in a disposition of the Operating Partnership's
assets or a change in control of our company even though such disposition or
change in control might be in the best interests of the shareholders.
 
    We anticipate that, in connection with future acquisitions of interests in
properties in which we use units as consideration, we may agree to similar
limitations on our ability to sell, or reduce the amount of mortgage
indebtedness on, such acquired properties, which may increase our leverage. Such
limitations may impair our ability to take actions that would otherwise be in
the best interests of shareholders and, therefore, may have an adverse impact on
the value of our securities (relative to the value that would result if such
limitations did not exist).
 
FAILURE OF THE COMPANY TO QUALIFY AS A REIT WOULD HAVE SERIOUS ADVERSE
  CONSEQUENCES TO OUR SHAREHOLDERS
 
    We believe that, since our IPO in August 1997, we have qualified for
taxation as a REIT for federal income tax purposes. We plan to continue to meet
the requirements for taxation as a REIT. Many of these requirements, however,
are highly technical and complex. The determination that we are a REIT requires
an analysis of various factual matters and circumstances that may not be totally
within our control. For example, to qualify as a REIT, at least 95% of our gross
income must come from certain sources that are itemized in the REIT tax laws. We
are also required to distribute to shareholders at least 95% of our REIT taxable
income (excluding capital gains). The fact that we hold our assets through the
Operating Partnership and its subsidiaries further complicates the application
of the REIT requirements. Even a technical or inadvertent mistake could
jeopardize our REIT status. Furthermore, Congress and the IRS might make changes
to the tax laws and regulations, and the courts might issue new rulings that
make it more difficult, or impossible for us to remain qualified as a REIT. We
do not believe, however, that any pending or proposed tax law changes would
jeopardize our REIT status.
 
    If we fail to qualify as a REIT, we would be subject to federal income tax
at regular corporate rates. Also, unless the IRS granted us relief under certain
statutory provisions, we would remain disqualified as a REIT for four years
following the year we first failed to qualify. If we failed to qualify as a
REIT, we would have to pay significant income taxes and would therefore have
less money available for investments or for distributions to shareholders. This
would likely have a significant adverse affect of the value of our securities.
In addition, we would no longer be required to make any distributions to
shareholders.
 
THE FINANCIAL CONDITION OF THIRD-PARTY PROPERTY MANAGEMENT, LEASING AND
  CONSTRUCTION BUSINESSES COULD ADVERSELY AFFECT OUR FINANCIAL CONDITION
 
    In order to maintain and preserve our status as a REIT, we cannot provide
certain services directly to tenants of properties that we do not wholly own.
These services include management, leasing and construction services. Rather
than providing such services ourself, we have non-controlled subsidiaries, which
we refer to as the "Services Corporations," provide such services. These Service
Corporations are: S.L. Green Management Corp., S.L. Green Leasing, Inc. and
Emerald City Construction Corp. The Service Corporations perform, respectively,
management, leasing and construction services for properties which we do not
own, and are referred to, respectively, as the "Management Corporation," the
"Leasing Corporation" and the "Construction Corporation." We are subject to the
risks associated with the management, leasing and construction businesses that
are conducted by our Service Corporations, in which the Operating Partnership
holds a 95% economic interest. These risks include the risk that management and
leasing contracts with third party property owners will not be renewed upon
expiration (or will be canceled pursuant to cancellation options) or will not be
renewed on terms at least as favorable to us as current terms, that the rental
revenues upon which management, leasing and construction fees are based will
decline as a result of general real estate market conditions or specific market
factors affecting properties we service, and that leasing and construction
activity generally will decline. Since our IPO, 11 management and leasing
contracts with third party property owners have been cancelled, representing an
 
                                       10
<PAGE>
aggregate decrease of approximately $0.9 million in annual revenue. In order to
focus on the management and leasing of our Properties, we do not intend to seek
to replace the contracts or to pursue other third party management and leasing
opportunities. Each of these developments could adversely affect the revenues of
the Management Corporation and the Leasing Corporation and could adversely
affect our ability to continue to make expected distributions to our
shareholders.
 
    The Service Corporation LLC owns 100% of the voting common stock
(representing 5% of the economic interest) of each of the Service Corporations.
As a result, we do not have the ability to elect or remove any members of the
board of directors of the Management Corporation, the Leasing Corporation or the
Construction Corporation, and, therefore, our ability to influence the
day-to-day decisions of the Service Corporations is limited. As a result, the
boards of directors or management of the Service Corporations may implement
business policies or decisions that might not have been implemented by persons
elected by us and that are adverse to our interests or that lead to adverse
financial results, which could adversely affect our ability to make expected
distributions to shareholders.
 
WE ARE DEPENDENT ON EXTERNAL SOURCES OF CAPITAL
 
    To qualify as a REIT, we must distribute to our shareholders each year at
least 95% of our net taxable income (excluding any net capital gain). Because of
these distribution requirements, it is not likely that we will be able to fund
all future capital needs, including acquisitions, from income from operations.
We therefore will have to rely on third-party sources of capital, which may or
may not be available on favorable terms or at all. Our access to third-party
sources of capital depends on a number of things, including the market's
perception of our growth potential and our current and potential future
earnings. In addition, we anticipate having to raise money in the public equity
and debt markets with some regularity, and our ability to do so will be
dependent upon the general conditions prevailing in such markets. Recent
conditions have demonstrated that conditions may exist which effectively prevent
us, and REITs in general, from accessing such markets. Moreover, additional
equity offerings may result in substantial dilution of security-holders'
interests, and additional debt financing may substantially increase our
leverage.
 
                                USE OF PROCEEDS
 
    The net proceeds to us from the sale of the securities offered hereby will
be used for general corporate purposes, which may include the repayment of
existing indebtedness, the development or acquisition of additional properties
as suitable opportunities arise and the renovation, expansion and improvement of
our existing properties. Further details relating to the use of the net proceeds
will be set forth in the applicable Prospectus Supplement.
 
                                       11
<PAGE>
                      RATIOS OF EARNINGS TO FIXED CHARGES
 
    Our ratios of earnings to fixed charges are as follows:
<TABLE>
<CAPTION>
                                                 SL GREEN REALTY CORP.                        SL GREEN PREDECESSOR(1)
<S>                                  <C>                    <C>                      <C>                  <C>        <C>
                                                     (CONSOLIDATED)                                 (COMBINED)
                                     ----------------------------------------------  -----------------------------------------
 
<CAPTION>
                                       NINE MONTHS ENDED      AUGUST 21, 1997 TO      JANUARY 1,1997 TO       YEARS ENDED
                                      SEPTEMBER 30, 1998       DECEMBER 31, 1997       AUGUST 20, 1997        DECEMBER 31,
                                     ---------------------  -----------------------  -------------------  --------------------
                                                                                                            1996       1995
<S>                                  <C>                    <C>                      <C>                  <C>        <C>
Ratio of Earnings to Fixed Charges
  (2)..............................             1.65                    3.96                   0.98            0.61       0.22
 
<CAPTION>
 
<S>                                  <C>        <C>
 
                                       1994       1993
<S>                                  <C>        <C>
Ratio of Earnings to Fixed Charges
  (2)..............................       0.45       0.86
</TABLE>
 
- ------------------------
 
(1) The SL Green Predecessor is not a legal entity but rather a combination of
    real estate properties and affiliated real estate management, construction
    and leasing entities under common control and management of Mr. Green.
 
(2) Prior to completion of the IPO on August 20, 1997, the SL Green Predecessor
    operated in a manner as to minimize net taxable income to the owners. The
    IPO and the related Formation Transactions permitted us to deleverage our
    properties significantly, resulting in a significantly improved ratio of
    earnings to fixed charges.
 
    The ratios of earnings to fixed charges were computed by dividing earnings
by fixed charges, which includes 100% of majority owned non-combined entities of
the SL Green Predecessor. For this purpose, earnings consist of income (loss)
before gains from sale of property and extraordinary items plus fixed charges.
Fixed charges consist of interest expense (including interest costs
capitalized), the amortization of debt issuance costs and rental expense deemed
to represent interest expense.
 
                          DESCRIPTION OF COMMON STOCK
 
GENERAL
 
    The Company's Articles of Incorporation (the "Charter") provide that the
Company may issue up to 100 million shares of common stock, $.01 par value per
share. Subject to the provisions of the Charter regarding excess stock, each
outstanding share of common stock entitles the holder to one vote on all matters
submitted to a vote of shareholders, including the election of directors, and,
except as provided with respect to any other class or series of stock, the
holders of such stock will possess the exclusive voting power. There is no
cumulative voting in the election of directors, which means that the holders of
a majority of the outstanding shares of common stock can elect all of the
directors then standing for election and the holders of the remaining shares
will not be able to elect any directors. On September 30, 1998, there were
23,951,826 shares of common stock outstanding.
 
    All shares of common stock offered hereby have been duly authorized, and
will be fully paid and nonassessible. Subject to the preferential rights of any
other shares or series of stock and to the provisions of the Charter regarding
excess stock, holders of shares of common stock are entitled to receive
dividends on such stock if, as and when authorized and declared by the Board of
Directors of the Company out of assets legally available therefor and to share
ratably in the assets of the Company legally available for distribution to its
shareholders in the event of its liquidation, dissolution or winding up after
payment of or adequate provision for all known debts and liabilities of the
Company.
 
    Holders of shares of common stock have no preference, conversion, exchange,
sinking fund, redemption or appraisal rights and have no preemptive rights to
subscribe for any securities of the Company. Subject to the provisions of the
Charter regarding excess stock, shares of common stock will have equal dividend,
liquidation and other rights.
 
                                       12
<PAGE>
CERTAIN PROVISIONS OF THE COMPANY'S ARTICLES OF INCORPORATION
 
    The Charter authorizes the Board of Directors to reclassify any unissued
shares of common stock into other classes or series of classes of stock and to
establish the number of shares in each class or series and to set the
preferences, conversion and other rights, voting powers, restrictions,
limitations and restrictions on ownership, limitations as to dividends or other
distributions, qualifications and terms or conditions of redemption for each
such class or series.
 
    The Board of Directors is divided into three classes of directors, each
class constituting approximately one-third of the total number of directors,
with the classes serving staggered terms. At each annual meeting of
shareholders, the class of directors to be elected at such meeting will be
elected for a three-year term and the directors in the other two classes will
continue in office. The Company believes that classified directors will help to
assure the continuity and stability of the Board of Directors and the Company's
business strategies and policies as determined by the Board of Directors. The
use of a staggered board may delay or defer a change in control of the Company
or removal of incumbent management.
 
RESTRICTIONS ON OWNERSHIP
 
    For the Company to qualify as a REIT under the Internal Revenue Code of
1986, as amended (the "Code"), not more than 50% in value of its outstanding
common stock may be owned, directly or indirectly, by five or fewer individuals
(as defined in the Code) during the last half of a taxable year and the common
stock must be beneficially owned by 100 or more persons during at least 335 days
of a taxable year of 12 months (or during a proportionate part of a shorter
taxable year). To satisfy the above ownership requirements and certain other
requirements for qualification as a REIT, the Board of Directors has adopted,
and the shareholders prior to the IPO approved, a provision in the Charter
restricting the ownership or acquisition of shares of common stock. See
"Restrictions on Ownership of Capital Stock."
 
TRANSFER AGENT AND REGISTRAR
 
    The transfer agent and registrar for the common stock is the American Stock
Transfer & Trust Company.
 
                         DESCRIPTION OF PREFERRED STOCK
 
GENERAL
 
    The Charter provides that the Company may issue up to 25 million shares of
preferred stock, $.01 par value per share. On September 30, 1998 there were
4,600,000 shares of preferred stock outstanding.
 
    The following description of the preferred stock sets forth certain general
terms and provisions of the preferred stock to which any Prospectus Supplement
may relate. The statements below describing the preferred stock are in all
respects subject to and qualified in their entirety by reference to the
applicable provisions of the Charter and Bylaws of the Company and any
applicable articles supplementary to the Charter designating terms of a series
of preferred stock (a "Designating Amendment").
 
    The issuance of preferred stock could adversely affect the voting power,
dividend rights and other rights of holders of common stock. Although the Board
of Directors has no such intention at the present time, it could establish a
series of preferred stock that could, depending on the terms of such series,
delay, defer or prevent a transaction or a change in control of the Company that
might involve a premium price for the common stock or otherwise be in the best
interest of the holders thereof. Management believes that the availability of
preferred stock will provide the Company with increased flexibility in
structuring possible future financing and acquisitions and in meeting other
needs that might arise.
 
TERMS
 
    Subject to the limitations prescribed by the Charter, the Board of Directors
is authorized to fix the number of shares constituting each series of preferred
stock and the designations and powers, preferences
 
                                       13
<PAGE>
and relative, participating, optional or other special rights and
qualifications, limitations or restrictions thereof, including such provisions
as may be desired concerning voting, redemption, dividends, dissolution or the
distribution of assets, conversion or exchange, and such other subjects or
matters as may be fixed by resolution of the Board of Directors. The preferred
stock will, when issued, be fully paid and nonassessible by the Company and will
have no preemptive rights.
 
    Reference is made to the Prospectus Supplement relating to the series of
preferred stock offered thereby for the specific terms thereof, including:
 
    - The title and stated value of such preferred stock;
 
    - The number of shares of such preferred stock, the liquidation preference
      per share of such preferred stock and the offering price of such preferred
      stock;
 
    - The dividend rate(s), period(s) and/or payment date(s) or method(s) of
      calculation thereof applicable to such preferred stock;
 
    - The date from which dividends on such preferred stock shall accumulate, if
      applicable;
 
    - The procedures for any auction and remarketing, if any, for such preferred
      stock;
 
    - The provision for a sinking fund, if any, for such preferred stock;
 
    - The provision for redemption, if applicable, of such preferred stock;
 
    - Any listing of such preferred stock on any securities exchange;
 
    - The terms and conditions, if applicable, upon which such preferred stock
      may or will be convertible into common stock of the Company, including the
      conversion price (or manner of calculation thereof);
 
    - The relative ranking and preferences of such preferred stock as to
      dividend rights and rights upon liquidation, dissolution or winding up of
      the affairs of the Company;
 
    - Any limitations on direct or beneficial ownership and restrictions on
      transfer, in each case as may be appropriate to preserve the status of the
      Company as a REIT;
 
    - A discussion of federal income tax considerations applicable to such
      preferred stock; and
 
    - Any other specific terms, preferences, rights, limitations or restrictions
      of such preferred stock.
 
RANK
 
    Unless otherwise specified in the applicable prospectus supplement, the
preferred stock will, with respect to dividend rights and rights upon
liquidation, dissolution or winding up of the Company, rank: (i) senior to all
classes or series of common stock and to all equity securities issued by the
Company the terms of which provide that such equity securities shall rank junior
to such preferred stock; (ii) on a parity with all equity securities issued by
the Company other than those referred to in clauses (i) and (iii); and (iii)
junior to all equity securities issued by the Company which the terms of such
preferred stock provide will rank senior to it. The term "equity securities"
does not include convertible debt securities.
 
DIVIDENDS
 
    Unless otherwise specified in the applicable Prospectus Supplement, the
preferred stock will have the rights with respect to payment of dividends set
forth below.
 
    Holders of the preferred stock of each series will be entitled to receive,
when, as and if declared by the Board of Directors, out of assets of the Company
legally available for payment, cash dividends in such amounts and on such dates
as will be set forth in, or pursuant to, the applicable prospectus supplement.
Each such dividend shall be payable to holders of record as they appear on the
share transfer books of the Company on such record dates as shall be fixed by
the Board of Directors.
 
                                       14
<PAGE>
    Dividends on any series of preferred stock may be cumulative or
non-cumulative, as provided in the applicable Prospectus Supplement. Dividends,
if cumulative, will be cumulative from and after the date set forth in the
applicable Prospectus Supplement. If the Board of Directors fails to declare a
dividend payable on a dividend payment date on any series of preferred stock for
which dividends are non-cumulative, then the holders of such series of preferred
stock will have no right to receive a dividend in respect of the related
dividend period and the Company will have no obligation to pay the dividend
accrued for such period, whether or not dividends on such series of preferred
stock are declared payable on any future dividend payment date.
 
    If preferred stock of any series is outstanding, no full dividends will be
declared or paid or set apart for payment on any capital stock of the Company of
any other series ranking, as to dividends, on a parity with or junior to the
preferred stock of such series for any period unless (i) if such series of
preferred stock has a cumulative dividend, full cumulative dividends have been
or contemporaneously are declared and paid or declared and a sum sufficient for
the payment thereof set apart for such payment for all past dividend periods and
the then current dividend period or (ii) if such series of preferred stock does
not have a cumulative dividend, full dividends for the then current dividend
period have been or contemporaneously are declared and paid or declared and a
sum sufficient for the payment thereof set apart for such payment on the
preferred stock of such series. When dividends are not paid in full (or a sum
sufficient for such full payment is not so set apart) upon preferred stock of
any series and the shares of any other series of preferred stock ranking on a
parity as to dividends with the preferred stock of such series, all dividends
declared upon the preferred stock of such series and any other series of
preferred stock ranking on a parity as to dividends with such preferred stock
shall be declared pro rata so that the amount of dividends declared per share of
preferred stock of such series and such other series of preferred stock shall in
all cases bear to each other the same ratio that accrued dividends per share on
the preferred stock of such series and such other series of preferred stock
(which shall not include any accumulation in respect of unpaid dividends for
prior dividend periods if such preferred stock does not have a cumulative
dividend) bear to each other. No interest, or sum of money in lieu of interest,
shall be payable in respect of any dividend payment or payments on preferred
stock of such series which may be in arrears.
 
    Except as provided in the immediately preceding paragraph, unless (i) if
such series of preferred stock has a cumulative dividend, full cumulative
dividends on the preferred stock of such series have been or contemporaneously
are declared and paid or declared and a sum sufficient for the payment thereof
set apart for payment for all past dividend periods and the then current
dividend period, and (ii) if such series of preferred stock does not have a
cumulative dividend, full dividends on the preferred stock of such series have
been or contemporaneously are declared and paid or declared and a sum sufficient
for the payment thereof set apart for payment for the then current dividend
period, no dividends (other than in shares of common stock or other capital
stock ranking junior to the preferred stock of such series as to dividends and
upon liquidation) shall be declared or paid or set aside for payment or other
distribution shall be declared or made upon the common stock, or any other
capital stock of the Company ranking junior to or on a parity with the preferred
stock of such series as to dividends or upon liquidation, nor shall any shares
of common stock, or any other capital stock of the Company ranking junior to or
on a parity with the preferred stock of such series as to dividends or upon
liquidation, be redeemed, purchased or otherwise acquired for any consideration
(or any moneys be paid to or made available for a sinking fund for the
redemption of any such shares) by the Company (except) (i) by conversion into or
exchange for other capital stock of the Company ranking junior to the preferred
stock of such series as to dividends and upon liquidation or (ii) redemption's
for the purpose of preserving the Company's status as a REIT).
 
REDEMPTION
 
    If so provided in the applicable Prospectus Supplement, the preferred stock
will be subject to mandatory redemption or redemption at the option of the
Company, as a whole or in part, in each case upon the terms, at the times and at
the redemption prices set forth in such Prospectus Supplement.
 
                                       15
<PAGE>
    The Prospectus Supplement relating to a series of preferred stock that is
subject to mandatory redemption will specify the number of shares of such
preferred stock that shall be redeemed by the Company in each year commencing
after a date to be specified, at a redemption price per share to be specified,
together with an amount equal to all accumulated and unpaid dividends thereon
(which shall not, if such preferred stock does not have a cumulative dividend,
include any accumulation in respect of unpaid dividends for prior dividend
periods) to the date of redemption. The redemption price may be payable in cash
or other property, as specified in the applicable Prospectus Supplement. If the
redemption price for preferred stock of any series is payable only from the net
proceeds of the issuance of capital stock of the Company, the terms of such
preferred stock may provide that, if no such capital stock shall have been
issued or to the extent the net proceeds from any issuance are insufficient to
pay in full the aggregate redemption price then due, such preferred stock shall
automatically and mandatorily be converted into the applicable capital stock of
the Company pursuant to conversion provisions specified in the applicable
prospectus supplement.
 
    Notwithstanding the foregoing, unless (i) if such series of preferred stock
has a cumulative dividend, full cumulative dividends on all shares of any series
of preferred stock shall have been or contemporaneously are declared and paid or
declared and a sum sufficient for the payment thereof set apart for payment for
all past dividend periods and the then current dividend period, and (ii) if such
series of preferred stock does not have a cumulative dividend, full dividends on
the preferred stock of any series have been or contemporaneously are declared
and paid or declared and a sum sufficient for the payment thereof set apart for
payment for the then current dividend period, no shares of any series of
preferred stock shall be redeemed unless all outstanding preferred stock of such
series is simultaneously redeemed; PROVIDED, HOWEVER, that the foregoing shall
not prevent the purchase or acquisition of preferred stock of such series to
preserve the REIT status of the Company or pursuant to a purchase or exchange
offer made on the same terms to holders of all outstanding preferred stock of
such series. In addition, unless (i) if such series of preferred stock has a
cumulative dividend, full cumulative dividends on all outstanding shares of any
series of preferred stock have been or contemporaneously are declared and paid
or declared and a sum sufficient for the payment thereof set apart for payment
for all past dividend periods and the then current dividend period, and (ii) if
such series of preferred stock does not have a cumulative dividend, full
dividends on the preferred stock of any series have been or contemporaneously
are declared and paid or declared and a sum sufficient for the payment thereof
set apart for payment for the then current dividend period, the Company shall
not purchase or otherwise acquire, directly or indirectly, any shares of
preferred stock of such series (except by conversion into or exchange for
capital stock of the Company ranking junior to the preferred stock of such
series as to dividends and upon liquidation); PROVIDED, HOWEVER, that the
foregoing shall not prevent the purchase or acquisition of preferred stock of
such series to preserve the REIT status of the Company or pursuant to a purchase
or exchange offer made on the same terms to holders of all outstanding preferred
stock of such series.
 
    If fewer than all of the outstanding shares of preferred stock of any series
are to be redeemed, the number of shares to be redeemed will be determined by
the Company and such shares may be redeemed pro rata from the holders of record
of such shares in proportion to the number of such shares held or for which
redemption is requested by such holder (with adjustments to avoid redemption of
fractional shares) or by lot in a manner determined by the Company.
 
    Notice of redemption will be mailed at least 30 days but not more than 60
days before the redemption date to each holder of record of preferred stock of
any series to be redeemed at the address shown on the share transfer books of
the Company. Each notice shall state: (i) the redemption date; (ii) the number
of shares and series of the preferred stock to be redeemed; (iii) the redemption
price; (iv) the place or places where certificates for such preferred stock are
to be surrendered for payment of the redemption price; (v) that dividends on the
shares to be redeemed will cease to accumulate on such redemption date; and (vi)
the date upon which the holder's conversion rights, if any, as to such shares
shall terminate. If fewer than all the shares of preferred stock of any series
are to be redeemed, the notice mailed to each such holder thereof shall also
specify the number of shares of preferred stock to be redeemed from each such
 
                                       16
<PAGE>
holder. If notice of redemption of any preferred stock has been given and if the
funds necessary for such redemption have been set aside by the Company in trust
for the benefit of the holders of any preferred stock so called for redemption,
then from and after the redemption date dividends will cease to accumulate on
such preferred stock, and all rights of the holders of such preferred stock will
terminate, except the right to receive the redemption price.
 
LIQUIDATION PREFERENCE
 
    Upon any voluntary or involuntary liquidation, dissolution or winding up of
the affairs of the Company (referred to herein as a "liquidation"), then, before
any distribution or payment shall be made to the holders of any common stock or
any other class or series of capital stock of the Company ranking junior to the
preferred stock of such series in the distribution of assets upon any
liquidation, dissolution or winding up of the Company, the holders of such
preferred stock shall be entitled to receive out of assets of the Company
legally available for distribution to shareholders liquidating distributions in
the amount of the liquidation preference per share (set forth in the applicable
Prospectus Supplement), plus an amount equal to all dividends accumulated and
unpaid thereon (which shall not include any accumulation in respect of unpaid
dividends for prior dividend periods if such preferred stock does not have a
cumulative dividend). After payment of the full amount of the liquidating
distributions to which they are entitled, the holders of preferred stock will
have no rights or claim to any of the remaining assets of the Company. In the
event that, upon any such voluntary or involuntary liquidation, dissolution or
winding up, the available assets of the Company are insufficient to pay the
amount of the liquidating distributions on all outstanding preferred stock of
such series and the corresponding amounts payable on all shares of other classes
or series of capital stock of the Company ranking on a parity with such
preferred stock in the distribution of assets, then the holders of such
preferred stock and all other such classes or series of capital stock shall
share ratably in any such distribution of assets in proportion to the full
liquidating distributions to which they would otherwise be respectively
entitled.
 
    The consolidation or merger of the Company with or into any other entity, or
the merger of another entity with or into the Company, or a statutory share
exchange by the Company, or the sale, lease or conveyance of all or
substantially all of the property or business of the Company, shall not be
deemed to constitute a liquidation, dissolution or winding up of the Company.
 
VOTING RIGHTS
 
    Holders of the preferred stock will not have any voting rights, except as
set forth below or as otherwise from time to time required by law or as
indicated in the applicable Prospectus Supplement.
 
    Whenever dividends on any series of preferred stock shall be in arrears for
six or more quarterly periods, the holders of such preferred stock (voting
separately as a class with all other series of preferred stock upon which like
voting rights have been conferred and are exercisable) will be entitled to vote
for the election of two additional directors of the Company at a special meeting
called by the holders of record of at least ten percent (10%) of any series of
preferred stock so in arrears (unless such request is received less than 90 days
before the date fixed for the next annual or special meeting of the
shareholders) or at the next annual meeting of shareholders, and at each
subsequent annual meeting until (i) if such series of preferred stock has a
cumulative dividend, all dividends accumulated on such shares of preferred stock
for the past dividend periods and the then current dividend period shall have
been fully paid or declared and a sum sufficient for the payment thereof set
aside for payment or (ii) if such series of preferred stock does not have a
cumulative dividend, four quarterly dividends shall have been fully paid or
declared and a sum sufficient for the payment thereof set aside for payment. In
such cases, the entire Board of Directors will be increased by two directors.
 
    Unless provided otherwise for any series of preferred stock, so long as any
shares of such preferred stock remain outstanding, the Company will not, without
the affirmative vote or consent of the holders of at least two-thirds of the
shares of such series of preferred stock outstanding at the time, given in
person or
 
                                       17
<PAGE>
by proxy, either in writing or at a meeting (such series voting separately as a
class), (i) authorize or create, or increase the authorized or issued amount of,
any class or series of capital stock ranking senior to such preferred stock with
respect to payment of dividends or the distribution of assets upon liquidation,
dissolution or winding up of the Company, or reclassify any authorized capital
stock of the Company into such stock, or create, authorize or issue any
obligation or security convertible into or evidencing the right to purchase any
such stock; or (ii) amend, alter or repeal the provisions of the Charter or the
Designating Amendment for such series of preferred stock, whether by merger,
consolidation or otherwise (an "Event"), so as to materially and adversely
affect any right, preference, privilege or voting power of such series of
preferred stock or the holders thereof; PROVIDED, HOWEVER, with respect to the
occurrence of any of the Events set forth in (ii) above, so long as such series
of preferred stock remains outstanding with the terms thereof materially
unchanged, taking into account that upon the occurrence of an Event the Company
may not be the surviving entity, the occurrence of any such Event shall not be
deemed to materially and adversely affect such rights, preferences, privileges
or voting powers of holders of such series of preferred stock; and provided,
further, that (x) any increase in the amount of the authorized preferred stock
or the creation or issuance of any other series of preferred stock, or (y) any
increase in the amount of authorized shares of such series of preferred stock or
any other series of preferred stock, in each case ranking on a parity with or
junior to the preferred stock of such series with respect to payment of
dividends or the distribution of assets upon liquidation, dissolution or winding
up of the Company, shall not be deemed to materially and adversely affect such
rights, preferences, privileges or voting powers.
 
    The foregoing voting provisions will not apply if, at or prior to the time
when the act with respect to which such vote or consent would otherwise be
required shall be effected, all outstanding shares of such series of preferred
stock shall have been converted, redeemed or called for redemption and
sufficient funds shall have been deposited in trust to effect such redemption.
 
CONVERSION RIGHTS
 
    The terms and conditions, if any, upon which any series of preferred stock
is convertible into shares of common stock will be set forth in the applicable
Prospectus Supplement. Such terms will include the number of shares of common
stock into which the shares of preferred stock are convertible, the conversion
price (or manner of calculation thereof), the conversion period, provisions as
to whether conversion will be at the option of the holders of the preferred
stock or the Company, the events requiring an adjustment of the conversion price
and provisions affecting conversion in the event of the redemption of the
preferred stock.
 
SHAREHOLDER LIABILITY
 
    As discussed above under "Description of Common Stock--General," applicable
Maryland law provides that no shareholder, including holders of preferred stock,
shall be personally liable for the acts and obligations of the Company and that
the funds and property of the Company shall be the only recourse for such acts
or obligations.
 
RESTRICTIONS ON OWNERSHIP
 
    As discussed below under "Restrictions on Ownership of Capital Stock," for
the Company to qualify as a REIT under the Code, not more than 50% in value of
its outstanding capital stock may be owned, directly or indirectly, by five or
fewer individuals (as defined in the Code to include certain entities) during
the last half of a taxable year. Therefore, the Designating Amendment for each
series of preferred stock may contain provisions restricting the ownership and
transfer of such preferred stock. The applicable Prospectus Supplement will
specify any additional ownership limitation relating to a series of preferred
stock.
 
                                       18
<PAGE>
REGISTRAR AND TRANSFER AGENT
 
    The Registrar and Transfer Agent for the preferred stock is the American
Stock Transfer & Trust Company.
 
                   RESTRICTIONS ON OWNERSHIP OF CAPITAL STOCK
 
EXCESS STOCK
 
    The Charter provides that the Company may issue up to 75 million shares of
excess stock, par value $.01 per share. For a description of excess stock, see
"--Restrictions on Ownership" below.
 
RESTRICTIONS ON OWNERSHIP
 
    For the Company to qualify as a REIT under the Code, among other things, not
more than 50% in value of its outstanding capital stock may be owned, directly
or indirectly, by five or fewer individuals (defined in the Code to include
certain entities) during the last half of a taxable year (other than the first
year) (the "Five or Fewer Requirement"), and such shares of capital stock must
be beneficially owned by 100 or more persons during at least 335 days of a
taxable year of 12 months (other than the first year) or during a proportionate
part of a shorter taxable year. Pursuant to the Code, common stock held by
certain types of entities, such as pension trusts qualifying under Section
401(a) of the Code, United States investment companies registered under the
Investment Company Act of 1940, partnerships, trusts and corporations, will be
attributed to the beneficial owners of such entities for purposes of the Five or
Fewer Requirement (I.E., the beneficial owners of such entities will be counted
as shareholders of the Company).
 
    In order to protect the Company against the risk of losing its status as a
REIT due to a concentration of ownership among its shareholders, the Charter,
subject to certain exceptions, provides that no shareholder may own, or be
deemed to own by virtue of the attribution provisions of the Code, more than
9.0% (the "Ownership Limit") of the aggregate number or value of the Company's
outstanding shares of common stock. Limitations on the ownership of preferred
stock may also be imposed by the Company. See "Description of Preferred
Stock--Restrictions on Ownership." Any direct or indirect ownership of shares of
stock in excess of the Ownership Limit or that would result in the
disqualification of the Company as a REIT, including any transfer that results
in shares of capital stock being owned by fewer than 100 persons or results in
the Company being "closely held" within the meaning of Section 856(h) of the
Code, shall be null and void, and the intended transferee will acquire no rights
to the shares of capital stock. The foregoing restrictions on transferability
and ownership will not apply if the Board of Directors determines that it is no
longer in the best interests of the Company to attempt to qualify, or to
continue to qualify, as a REIT. The Board of Directors may, in its sole
discretion, waive the Ownership Limit if evidence satisfactory to the Board of
Directors and the Company's tax counsel is presented that the changes in
ownership will not then or in the future jeopardize the Company's REIT status
and the Board of Directors otherwise decides that such action is in the best
interest of the Company.
 
    Shares of capital stock owned, or deemed to be owned, or transferred to a
shareholder in excess of the Ownership Limit will automatically be converted
into shares of excess stock that will be transferred, by operation of law, to
the trustee of a trust for the exclusive benefit of one or more charitable
organizations described in Section 170(b)(1)(A) and 170(c) of the Code (the
"Charitable Beneficiary"). The trustee of the trust will be deemed to own the
excess stock for the benefit of the Charitable Beneficiary on the date of the
violative transfer to the original transferee-shareholder. Any dividend or
distribution paid to the original transferee-shareholder of excess stock prior
to the discovery by the Company that capital stock has been transferred in
violation of the provisions of the Company's Charter shall be repaid to the
trustee upon demand. Any dividend or distribution authorized and declared but
unpaid shall be rescinded as void AB INITIO with respect to the original
transferee-shareholder and shall instead be paid to the trustee of the trust for
the benefit of the Charitable Beneficiary. Any vote cast by an original
transferee-shareholder of shares of capital stock constituting excess stock
prior to the discovery by the Company that shares of capital stock have been
transferred in violation of the provisions of the Company's Charter shall be
 
                                       19
<PAGE>
rescinded as void AB INITIO. While the excess stock is held in trust, the
original transferee-shareholder will be deemed to have given an irrevocable
proxy to the trustee to vote the capital stock for the benefit of the Charitable
Beneficiary. The trustee of the trust may transfer the interest in the trust
representing the excess stock to any person whose ownership of the shares of
capital stock converted into such excess stock would be permitted under the
Ownership Limit. If such transfer is made, the interest of the Charitable
Beneficiary shall terminate and the proceeds of the sale shall be payable to the
original transferee-shareholder and to the Charitable Beneficiary as described
herein. The original transferee-shareholder shall receive the lesser of (i) the
price paid by the original transferee-shareholder for the shares of capital
stock that were converted into excess stock or, if the original
transferee-shareholder did not give value for such shares (E.G., the stock was
received through a gift, devise or other transaction), the average closing price
for the class of shares from which such shares of capital stock were converted
for the ten trading days immediately preceding such sale or gift, and (ii) the
price received by the trustee from the sale or other disposition of the excess
stock held in trust. The trustee may reduce the amount payable to the original
transferee-shareholder by the amount of dividends and distributions relating to
the shares of excess stock which have been paid to the original
transferee-shareholder and are owed by the original transferee-shareholder to
the trustee. Any proceeds in excess of the amount payable to the original
transferee-shareholder shall be paid by the trustee to the Charitable
Beneficiary. Any liquidation distributions relating to excess stock shall be
distributed in the same manner as proceeds of a sale of excess stock. If the
foregoing transfer restrictions are determined to be void or invalid by virtue
of any legal decision, statute, rule or regulations, then the original
transferee-shareholder of any shares of excess stock may be deemed, at the
option of the Company, to have acted as an agent on behalf of the Company in
acquiring the shares of excess stock and to hold the shares of excess stock on
behalf of the Company.
 
    In addition, the Company will have the right, for a period of 90 days during
the time any shares of excess stock are held in trust, to purchase all or any
portion of the shares of excess stock at the lesser of (i) the price initially
paid for such shares by the original transferee-shareholder, or if the original
transferee-shareholder did not give value for such shares (E.G., the shares were
received through a gift, devise or other transaction), the average closing price
for the class of stock from which such shares of excess stock were converted for
the ten trading days immediately preceding such sale or gift, and (ii) the
average closing price for the class of stock from which such shares of excess
stock were converted for the ten trading days immediately preceding the date the
Company elects to purchase such shares. The Company may reduce the amount
payable to the original transferee-shareholder by the amount of dividends and
distributions relating to the shares of excess stock which have been paid to the
original transferee-shareholder and are owed by the original
transferee-shareholder to the trustee. The Company may pay the amount of such
reductions to the trustee for the benefit of the Charitable Beneficiary. The
90-day period begins on the later date of which notice is received of the
violative transfer if the original transferee-shareholder gives notice to the
Company of the transfer or, if no such notice is given, the date the Board of
Directors determines that a violative transfer has been made.
 
    These restrictions will not preclude settlement of transactions through the
New York Stock Exchange.
 
    All certificates representing shares of stock will bear a legend referring
to the restrictions described above.
 
    Each shareholder shall upon demand be required to disclose to the Company in
writing any information with respect to the direct, indirect and constructive
ownership of capital stock of the Company as the Board of Directors deems
necessary to comply with the provisions of the Code applicable to REITs, to
comply with the requirements of any taxing authority or governmental agency or
to determine any such compliance.
 
    The Ownership Limit may have the effect of delaying, deferring or preventing
a change in control of the Company unless the Board of Directors determines that
maintenance of REIT status is no longer in the best interest of the Company.
 
                                       20
<PAGE>
                       FEDERAL INCOME TAX CONSIDERATIONS
 
    The Company believes it has operated, and the Company intends to continue to
operate, in such a manner as to qualify as a REIT under the Code, but no
assurance can be given that it will at all times so qualify.
 
    The provisions of the Code pertaining to REITs are highly technical and
complex. The following is a brief and general summary of certain provisions that
currently govern the federal income tax treatment of the Company and its
shareholders. For the particular provisions that govern the federal income tax
treatment of the Company and its shareholders, reference is made to Sections 856
through 860 of the Code and the regulations thereunder. The following summary is
qualified in its entirety by such reference.
 
    Under the Code, if certain requirements are met in a taxable year, a REIT
generally will not be subject to federal income tax with respect to income that
it distributes to its shareholders. If the Company fails to qualify during any
taxable year as a REIT, unless certain relief provisions are available, it will
be subject to tax (including any applicable alternative minimum tax) on its
taxable income at regular corporate rates, which could have a material adverse
effect upon its shareholders.
 
    In any year in which the Company qualifies to be taxed as a REIT,
distributions made to its shareholders out of current or accumulated earnings
and profits will be taxed to shareholders as ordinary income except that
distributions of net capital gains designated by the Company as capital gain
dividends will be taxed as long-term capital gain income to the shareholders. To
the extent that distributions exceed current or accumulated earnings and
profits, they will constitute a return of capital, rather than dividend or
capital gain income, and will reduce the basis for the shareholder's common
stock or preferred stock, with respect to which the distribution is paid or, to
the extent that they exceed such basis, will be taxed in the same manner as gain
from the sale of that common stock or preferred stock. Beginning in 1998, the
Company may elect to retain long-term capital gains and pay corporate-level
income tax on them and treat the retained gains as if they had been distributed
to shareholders. In such case, each shareholder would include in income, as
long-term capital gain, its proportionate share of the undistributed gains and
would be deemed to have paid its proportionate share of the tax paid by the
Company with respect thereto. In addition, the basis for a shareholder's common
stock or preferred stock would be increased by the amount of the undistributed
long-term capital gain included in its income, less the amount of the tax it is
deemed to have paid with respect thereto.
 
    Investors are urged to consult their own tax advisors with respect to the
appropriateness of an investment in the securities offered hereby and with
respect to the tax consequences arising under federal law and the laws of any
state, municipality or other taxing jurisdiction, including tax consequences
resulting from such investor's own tax characteristics. In particular, foreign
investors should consult their own tax advisors concerning the tax consequences
of an investment in the Company, including the possibility of United States
income tax withholding on Company distributions.
 
                              PLAN OF DISTRIBUTION
 
    The Company may sell the securities to one or more underwriters for public
offering and sale by them or may sell the securities to investors directly or
through agents. Any such underwriter or agent involved in the offer and sale of
the securities will be named in the applicable prospectus supplement.
 
    Underwriters may offer and sell the securities at a fixed price or prices,
which may be changed, at prices related to the prevailing market prices at the
time of sale or at negotiated prices. The Company also may, from time to time,
authorize underwriters acting as their agents to offer and sell the securities
upon the terms and conditions as are set forth in the applicable Prospectus
Supplement. In connection with the sale of securities, underwriters may be
deemed to have received compensation from the Company in the form of
underwriting discounts or commissions and may also receive commissions from
purchasers of securities for whom they may act as agent. Underwriters may sell
securities to or through dealers, and such
 
                                       21
<PAGE>
dealers may receive compensation in the form of discounts, concessions or
commissions from the underwriters and/or commissions from the purchasers for
whom they may act as agent.
 
    Any underwriting compensation paid by the Company to underwriters or agents
in connection with the offering of securities, and any discounts, concessions
for commissions allowed by underwriters to participating dealers, are set forth
in the applicable Prospectus Supplement. Underwriters, dealers and agents
participating in the distribution of the securities may be deemed to be
underwriters, and any discounts and commissions received by them and any profit
realized by them on resale of the securities may be deemed to be underwriting
discounts and commissions, under the Securities Act. Underwriters, dealers and
agents may be entitled, under agreements entered into with the Company and the
Operating Partnership, to indemnification against and contribution toward
certain civil liabilities, including liabilities under the Securities Act.
 
    If so indicated in the applicable Prospectus Supplement, the Company and the
Operating Partnership will authorize dealers acting as their agents to solicit
offers by certain institutions to purchase securities from them at the public
offering price set forth in such Prospectus Supplement pursuant to Delayed
Delivery Contracts ("Contracts") providing for payment and delivery on the date
or dates stated in such Prospectus Supplement. Institutions with whom Contracts,
when authorized, may be made include commercial and savings banks, insurance
companies, pension funds, investment companies, educational and charitable
institutions, and other institutions but will in all cases be subject to the
approval of the Company and the Operating Partnership. Contracts will not be
subject to any conditions except that the purchase by an institution of the
securities covered by its Contracts shall not at the time of delivery be
prohibited under the laws of any jurisdiction in the United States to which such
institution is subject.
 
    Certain of the underwriters and their affiliates may be customers of, engage
in transactions with and perform services for the Company and the Operating
Partnership and its subsidiaries in the ordinary course of business.
 
                                 LEGAL MATTERS
 
    The validity of the issuance of the securities offered hereby and certain
legal matters described under "Federal Income Tax Considerations" will be passed
upon for the Company by Brown & Wood LLP, New York, New York.
 
                                    EXPERTS
 
    Ernst & Young LLP, independent auditors, have audited our consolidated
financial statements and schedules as of December 31, 1997 and for the period
August 21, 1997 (date of commencement of operations) to December 31, 1997; the
combined financial statements of the SL Green Predecessor as of December 31,
1996 and for the period January 1, 1997 to August 20, 1997 and each of the two
years in the period ended December 31, 1996 and the combined financial
statements of the uncombined joint ventures of the SL Green Predecessor as of
December 31, 1996 and for the period January 1, 1997 to August 20, 1997 and for
each of the two years in the period ended December 31, 1996 included in our
Annual Report on Form 10-K; the statements of revenues and certain expenses for
the property at 17 Battery Place located in the Borough of Manhattan for the
year ended December 31, 1996 included in our Current Report on Form 8-K/A dated
December 18, 1997; the statements of revenues and certain expenses for the
properties at 440 Ninth Avenue, 38 East 30(th) Street and the leasehold interest
in the property at 711 Third Avenue, located in the Borough of Manhattan for the
year ended December 31, 1997, the statement of revenues and certain expenses for
the property at 116 Nassau Street in the Borough of Brooklyn for the year ended
December 31, 1997 and the statement of revenues and certain expenses for the
property at 321 West 44(th) Street in the Borough of Manhattan for the year
ended June 30, 1997, included in our Current Report on form 8-K dated April 24,
1998 the statements of revenues and certain expenses for the property at 1466
Broadway and the leasehold interest in the property at 420 Lexington Avenue in
the Borough of
 
                                       22
<PAGE>
Manhattan for the year ended December 31, 1997 included in our Current Report on
form 8-K/A dated March 18, 1998 and the statement of revenues and certain
expenses for the property at 1412 Broadway located in the Borough of Manhattan
for the year ended April 30, 1998 included in our Current Report on form 8-K/A
dated August 14, 1998, as set forth in their reports which are incorporated in
this registration statement by reference. Our consolidated financial statements
and the financial statements mentioned above are incorporated by reference in
reliance on their reports, given on their authority as experts in accounting and
auditing.
 
                                       23
<PAGE>
                                    PART II
                     INFORMATION NOT REQUIRED IN PROSPECTUS
 
ITEM 14. OTHER EXPENSES OF ISSUANCE AND DISTRIBUTION
 
    The following sets forth the estimated expenses in connection with the
issuance and distribution of the Registrant's securities being registered
hereby, other than underwriting discounts and commissions, all of which will be
borne by the Registrant:
 
<TABLE>
<S>                                                              <C>
Securities and Exchange Commission registration fee............  $111,200.00
Printing and engraving expenses................................   10,000.00
NASD fees......................................................   30,500.00
Legal fees and expenses........................................   50,000.00
Accounting fees and expenses...................................   25,000.00
Blue Sky fees and expenses.....................................    5,000.00
Miscellaneous..................................................   15,000.00
                                                                 ----------
      Total....................................................  $246,700.00
                                                                 ----------
                                                                 ----------
</TABLE>
 
ITEM 15. INDEMNIFICATION OF DIRECTORS AND OFFICERS.
 
    The Maryland General Corporation Law, as amended from time to time (the
"MGCL"), permits a Maryland corporation to include in its charter a provision
limiting the liability of its directors and officers to the corporation and its
shareholders for money damages except for liability resulting from (a) actual
receipt of an improper benefit or profit in money, property or services or (b)
active and deliberate dishonesty established by a final judgment as being
material to the cause of action. The Amended and Restated Articles of
Incorporation contain such a provision which eliminates such liability to the
maximum extent permitted by Maryland law.
 
    The Amended and Restated Articles of Incorporation authorize SL Green, to
the maximum extent permitted by Maryland law, to obligate itself to indemnify
and to pay or reimburse reasonable expenses in advance of final disposition of a
proceeding to (a) any present or former director or officer or (b) any
individual who, while a director of SL Green and at the request of SL Green,
serves or has served another corporation, partnership, joint venture, trust,
employee benefit plan or any other enterprise as a director, officer, partner or
trustee of such corporation, partnership, joint venture, trust, employee benefit
plan or other enterprise. The Bylaws of SL Green obligate it, to the maximum
extent permitted by Maryland law, to indemnify and to pay or reimburse
reasonable expenses in advance of final disposition of a proceeding to (a) any
present or former director or officer who is made a party to the proceeding by
reason of his service in that capacity or (b) any individual who, while a
director of SL Green and at the request of SL Green, serves or has served
another corporation, partnership, joint venture, trust, employee benefit plan or
any other enterprise as a director, officer, partner or trustee of such
corporation, partnership, joint venture, trust, employee benefit plan or other
enterprise and who is made a party to the proceeding by reason of his service in
that capacity. The Amended and Restated Articles of Incorporation and Bylaws
also permit SL Green to indemnify and advance expenses to any person who served
a predecessor of SL Green in any of the capacities described above and to any
employee or agent of SL Green or a predecessor of SL Green.
 
    The MGCL requires a corporation (unless its charter provides otherwise,
which the Amended and Restated Articles of Incorporation do not) to indemnify a
director or officer who has been successful, on the merits or otherwise, in the
defense of any proceeding to which he is made a party by reason of his service
in that capacity. MGCL permits a corporation to indemnify its present and former
directors and officers, among others, against judgments, penalties, fines,
settlements and reasonable expenses actually incurred by them in connection with
any proceeding to which they may be made a party by reason of their service in
those or other capacities unless it is established that (a) the act or omission
of the director or
 
                                      II-1
<PAGE>
officer was material to the matter giving rise to the proceeding and (i) was
committed in bad faith or (ii) was the result of active and deliberate
dishonesty, (b) the director or officer actually received an improper personal
benefit in money, property or services or (c) in the case of any criminal
proceeding, the director or officer had reasonable cause to believe that the act
or omission was unlawful. However, a Maryland corporation may not indemnify for
an adverse judgment in a suit by or in the right of the corporation. In
addition, the MGCL requires SL Green, as a condition to advancing expenses, to
obtain (a) a written affirmation by the director or officer of his good faith
belief that he has met the standard of conduct necessary for indemnification by
SL Green as authorized by the Bylaws and (b) a written statement by or on his
behalf to repay the amount paid or reimbursed by SL Green if it shall ultimately
be determined that the standard of conduct was not met.
 
    SL Green has entered into indemnification agreements with each of its
executive officers and directors. The indemnification agreements require, among
other matters, that SL Green indemnify its executive officers and directors to
the fullest extent permitted by law and advance to the executive officers and
directors all related expenses, subject to reimbursement if it is subsequently
determined that indemnification is not permitted. Under these agreements, SL
Green must also indemnify and advance all expenses incurred by executive
officers and directors seeking to enforce their rights under the indemnification
agreements and may cover executive officers and directors under SL Green's
directors' and officers' liability insurance. Although indemnification
agreements offer substantially the same scope of coverage afforded the Bylaws,
they provide greater assurance to directors and executive officers that
indemnification will be available, because, as contracts, they cannot be
modified unilaterally in the future by the Board of Directors or the
shareholders to eliminate the rights they provide.
 
ITEM 16. EXHIBITS.
 
<TABLE>
<S>        <C>
1.1        -- Form of Underwriting Agreement.(1)
 
4.1        -- Form of Designating Amendment for Preferred Stock.(1)
 
5.1        -- Opinion of Brown & Wood LLP as to the legality of the Securities.
 
8.1        -- Opinion of Brown & Wood LLP as to tax matters.
 
12.1       -- Calculation of Ratios of Earnings to Fixed Charges.
 
23.1       -- Consent of Brown & Wood LLP (included in Exhibit 1).
 
23.2       -- Consent of Ernst & Young LLP.
 
24.1       -- Power of attorney (included on signature page of this Registration Statement).
</TABLE>
 
- ------------------------
 
(1) To be filed by amendment or incorporated by reference in connection with the
    offering of Securities.
 
ITEM 17. UNDERTAKINGS.
 
    (a) The undersigned Registrant hereby undertakes:
 
        (1) To file, during any period in which offers or sales are being made,
    a post-effective amendment to the Registration Statement;
 
           (i) To include any prospectus required by Section 10(a)(3) of the
       Securities Act;
 
           (ii) To reflect in the prospectus any facts or events arising after
       the effective date of the Registration Statement (or the most recent
       post-effective amendment thereof) which, individually or in the
       aggregate, represent a fundamental change in the information set forth in
       the Registration Statement. Notwithstanding the foregoing, any increase
       or decrease in volume of securities offered (if the total dollar value of
       securities offered would not exceed that which was registered) and any
       deviation from the low or high end of the estimated maximum offering
       range
 
                                      II-2
<PAGE>
       may be reflected in the form of prospectus filed with the Commission
       pursuant to Rule 424(b) if, in the aggregate, the changes in volume and
       price represent no more than a 20% change in the maximum offering price
       set forth in the "Calculation of Registration Fee" table in the effective
       registration statement;
 
           (iii) To include any material information with respect to the plan of
       distribution not previously disclosed in the Registration Statement or
       any material change to such information in the Registration Statement.
 
       Provided, however, that paragraphs (1)(i) and (1)(ii) do not apply if the
       information required to be included in a post-effective amendment by
       those paragraphs is contained in periodic reports filed by the Registrant
       pursuant to Section 13 or 15(d) of the Exchange Act that are incorporated
       by reference in the Registration Statement.
 
        (2) That, for the purpose of determining any liability under the
    Securities Act, each such post-effective amendment shall be deemed to be a
    new registration statement relating to the Securities offered therein, and
    the offering of such securities at that time shall be deemed to be the
    initial bona fide offering thereof.
 
        (3) To remove from registration by means of a post-effective amendment
    any of the Securities being registered which remain unsold at the
    termination of the offering.
 
    (b) The undersigned Registrant hereby undertakes that, for purposes of
determining any liability under the Securities Act, each filing of the
Registrant's annual report pursuant to Section 13(a) or 15(d) of the Exchange
Act (and, where applicable, each filing of an employee benefit plan's annual
report pursuant to Section 15(d) of the Exchange Act) that is incorporated by
reference in the Registration Statement shall be deemed to be a new registration
statement relating to the Securities offered therein, and the offering of such
securities at that time shall be deemed to be the initial bona fide offering
thereof.
 
    (c) Insofar as indemnification for liabilities arising under the Securities
Act may be permitted to directors, officers and controlling persons of the
Registrant pursuant to the foregoing provisions, or otherwise, the Registrant
has been advised that in the opinion of the Securities and Exchange Commission
such indemnification is against public policy as expressed in the Securities Act
and is, therefore, unenforceable. In the event that a claim for indemnification
against such liabilities (other than the payment by the Registrant of expenses
incurred or paid by a director, officer or controlling person of the Registrant
in the successful defense of any action, suit or proceeding) is asserted by such
director, officer or controlling person in connection with the Securities being
registered, the Registrant will, unless in the opinion of its counsel the matter
has been settled by controlling precedent, submit to a court of appropriate
jurisdiction the question whether such indemnification by it is against public
policy as expressed in the Securities Act and will be governed by the final
adjudication of such issue.
 
    (d) The undersigned Registrant hereby undertakes that:
 
        (1) For purposes of determining any liability under the Securities Act,
    the information omitted from the form of prospectus filed as part of this
    registration statement in reliance upon Rule 430A and contained in a form of
    prospectus filed by the Registrant pursuant to Rule 424(b)(1) or (4) under
    the Securities Act shall be deemed to be part of this Registration Statement
    as of the time it was declared effective.
 
        (2) For the purpose of determining any liability under the Securities
    Act, each post-effective amendment that contains a form of prospectus shall
    be deemed to be a new registration statement relating to the Securities
    offered therein, and the offering of such securities at that time shall be
    deemed to be the initial bona fide offering thereof.
 
                                      II-3
<PAGE>
                                   SIGNATURES
 
    Pursuant to the requirements of the Securities Act of 1933, SL Green Realty
Corp. certifies that it has reasonable grounds to believe that it meets all of
the requirements for filing on Form S-3 and has duly caused this registration
statement to be signed on its behalf by the undersigned, thereunto duly
authorized, in New York, on December 7, 1998.
 
                                SL GREEN REALTY CORP.
 
                                By:             /s/ DAVID J. NETTINA
                                     ------------------------------------------
                                                  David J. Nettina
                                                     PRESIDENT
 
    KNOW ALL MEN BY THESE PRESENTS, that we, the undersigned officers and
directors of SL Green Realty Corp. hereby severally constitute Stephen L. Green,
Benjamin P. Feldman and Ann Iseley, and each of them singly, our true and lawful
attorneys with full power to them, and each of them singly, to sign for us and
in our names in the capacities indicated below, the Registration Statement filed
herewith and any and all amendments to said Registration Statement, and
generally to do all such things in our names and in our capacities as officers
and directors to enable SL Green Realty Corp. to comply with the provisions of
the Securities Act of 1933, and all requirements of the Securities and Exchange
Commission, hereby ratifying and confirming our signatures as they may be signed
by our said attorneys, or any of them, to said Registration Statement and any
all amendments thereto.
 
    Pursuant to the requirements of the Securities Act of 1933, this
registration statement has been signed by the following persons in the
capacities and on the dates indicated.
 
<TABLE>
<CAPTION>
                      SIGNATURE                                        TITLE                         DATE
- ------------------------------------------------------  -----------------------------------  --------------------
<C>                                                     <S>                                  <C>
 
                 /s/ STEPHEN L. GREEN                   Chief Executive Officer and
     -------------------------------------------          Chairman of the Board of             December 7, 1998
                   Stephen L. Green                       Directors
 
                 /s/ DAVID J. NETTINA                   President and Chief Operating
     -------------------------------------------          Officer (principal executive         December 7, 1998
                   David J. Nettina                       officer)
 
                                                        Executive Vice President and Chief
                    /s/ ANN ISELEY                        Financial Officer (principal
     -------------------------------------------          financial officer and principal      December 7, 1998
                      Ann Iseley                          accounting officer)
 
               /s/ BENJAMIN P. FELDMAN
     -------------------------------------------        Director                               December 7, 1998
                 Benjamin P. Feldman
 
                /s/ JOHN H. ALSCHULER
     -------------------------------------------        Director                               December 7, 1998
                  John H. Alschuler
 
             /s/ EDWIN THOMAS BURTON, III
     -------------------------------------------        Director                               December 7, 1998
               Edwin Thomas Burton, III
 
                   /s/ JOHN S. LEVY
     -------------------------------------------        Director                               December 7, 1998
                     John S. Levy
</TABLE>
 
                                      II-4
<PAGE>
                                 EXHIBIT INDEX
 
<TABLE>
<CAPTION>
  EXHIBITS                                                           DESCRIPTION
- -----------             -----------------------------------------------------------------------------------------------------
<C>          <C>        <S>
       1.1      --      Form of Underwriting Agreement.(1)
       4.1      --      Form of Designating Amendment for Preferred Stock.(1)
       5.1      --      Opinion of Brown & Wood LLP as to the legality of the Securities.
       8.1      --      Opinion of Brown & Wood LLP as to tax matters.
      12.1      --      Calculation of Ratios of Earnings to Fixed Charges.
      23.1      --      Consent of Brown & Wood LLP (included in Exhibit 5.1).
      23.2      --      Consent of Ernst & Young LLP.
      24.1      --      Power of attorney (included on signature page of this Registration Statement).
</TABLE>
 
- ------------------------
 
(1) To be filed by amendment or incorporated by reference in connection with the
    offering of Securities.
 
                                      II-5

<PAGE>

                                                                     Exhibit 5.1

                          [BROWN & WOOD LLP Letterhead]

                                December 7, 1998





SL Green Realty Corp.
70 West 36th Street
New York, NY  10018

Ladies and Gentlemen:

         This opinion is furnished in connection with the registration statement
on Form S-3 (the "Registration Statement"), pursuant to the Securities Act of
1933, as amended (the "Securities Act"), relating to an indeterminate amount of
shares of Common Stock and Preferred Stock (as such terms are defined in the
Registration Statement), of SL Green Realty Corp., a Maryland corporation (the
"Company") authorized for issuance under the Company's Amended and Restated
Articles of Incorporation (the "Articles of Incorporation"), with an aggregate
public offering price of up to $400,000,000 (collectively, the "Securities").
The Registration Statement provides that the Securities may be offered
separately or together, in separate series, in amounts, at prices and on terms
to be set forth in one or more prospectus supplements to the prospectus
contained in the Registration Statement (collectively, the "Prospectus").

         In connection with rendering this opinion, we have examined the
Articles of Incorporation, and the Bylaws, as amended, of the Company; such
records of the corporate proceedings of the Company as we deemed appropriate;
the Registration Statement, and such other certificates, receipts, records and
documents as we considered necessary for the purposes of this opinion.


<PAGE>

         We are attorneys admitted to practice in the State of New York. We
express no opinion concerning the laws of any jurisdictions other than the laws
of the United States of America, the State of Maryland and the State of New
York.

         Based upon the foregoing, we are of the opinion that:

                  (a) The shares of Common Stock have been duly authorized and,
when delivered and paid for in the manner contemplated by the Prospectus, will
be validly issued, fully paid and nonassessable.

                  (b) The shares of Preferred Stock have been duly authorized
and, when the number and specific terms thereof have been duly established in
accordance with the Designating Amendment (as defined in the Prospectus) and
such shares are delivered and paid for in the manner contemplated by the
Prospectus, will be validly issued, fully paid and nonassessable.

         The foregoing assumes that all requisite steps will be taken to comply
with the requirements of the Securities Act and applicable requirements of state
laws regulating the offer and sale of securities.

         We hereby consent to the filing of this opinion as an exhibit to the
Registration Statement and the reference to our firm under the caption "Legal
Matters" in the Prospectus.

                                              Very truly yours,

                                              /s/ Brown & Wood LLP


<PAGE>

                                                                     Exhibit 8.1


                                   Brown & Wood LLP
                                One World Trade Center
                               New York, New York 10048



                                                  December 7, 1998


SL Green Realty Corp.
70 West 36th Street
New York, New York 10018-8007

Ladies and Gentlemen:

     You have requested our opinion concerning certain of the federal income tax
matters with respect to SL Green Realty Corp. (the "Company") in connection with
the Form S-3 Registration Statement of the Company to be filed by the Company
with the Securities and Exchange Commission (the "SEC") on December 7, 1998 (the
"Registration Statement").

     This opinion is based, in part, upon various assumptions and
representations, including representations made by the Company as to factual
matters set forth in the Registration Statement, in registration statements on
Form S-11 previously filed by the Company with the SEC and in a letter delivered
to us by the Company today.  This opinion is also based upon the Internal
Revenue Code of 1986, as amended (the "Code"), the Treasury Regulations
promulgated thereunder and existing administrative and judicial interpretations
thereof, all as they exist at the date of this letter.  All of the foregoing
statues, regulations and interpretations are subject to change, in some
circumstances with retroactive effect.  Any changes to the foregoing authorities
might result in modifications of our opinions contained herein.

     Based on the foregoing, we are of the opinion that, commencing with the
Company's taxable year ended December 31, 1997, the Company was organized in
conformity with the requirements for qualification and taxation as a real estate
investment trust (a "REIT") under the Code and the proposed method of operation
of the Company will enable the Company to meet the requirements for
qualification and taxation as a REIT.

     We express no opinion with respect to the transactions described herein and
in the Registration Statement other than those expressly set forth herein. 
Furthermore, the Company's qualification as a REIT will depend on the Company's
making a timely election for REIT status and meeting, in its actual operations,
the applicable asset composition, source of income, shareholder diversification,
distribution, recordkeeping and other requirements of the Code and Treasury
Regulations necessary for a corporation to qualify as a REIT.  We will not
review these 


<PAGE>

operations and no assurance can be given that the actual operations of the
Company and its affiliates will meet these requirements or the representations
made to us with respect thereto.

     This opinion is furnished to you solely for your use in connection with the
Registration Statement.  We hereby consent to the filing of this opinion as
Exhibit 8.1 to the Registration Statement and to the use of our name in
connection with the material discussed therein under the caption "Federal Income
Tax Consequences."

                                                  Very truly yours,



                                                  /s/ Brown & Wood LLP


                                          2


<PAGE>

                                                                    EXHIBIT 12.1
<TABLE>
<CAPTION>
                                     SL GREEN REALTY CORP.                                     SL GREEN COMPANY PREDECESSOR
                                        (CONSOLIDATED)                                                  (COMBINED)
                            --------------------------------------   --------------------------------------------------------------
                                NINE MONTHS        AUGUST 21, 1997   JANUARY 1, 1997
                            ENDED SEPTEMBER 30,    TO DECEMBER 31,    TO AUGUST 20,               YEARS ENDED DECEMBER 31,
                            -------------------    ---------------   ---------------   --------------------------------------------
                                    1998                1997               1997           1996       1995        1994        1993
                            -------------------    ---------------   ---------------   ---------- ----------  ----------   --------
<S>                                <C>                  <C>               <C>           <C>        <C>         <C>           <C>   
EARNINGS:
Income (loss) from
  continuing operations ........   $16,572              $6,633            $(100)        $(3,470)   $(6,923)    $(5,040)      $(833)
Interest .......................     8,752               1,637            4,874           7,252      7,338       7,639       4,389
Portion of rent expense
  representative of
  interest .....................     7,330                 497              867           1,344      1,323       1,295       1,271
Amortization of loan costs .....       811                 110              143             192        200         266         275
                                 ---------           ---------      -----------       ---------  ---------    --------   ---------
Total earnings .................   $33,465              $8,877         $  5,784        $  5,318   $  1,938      $4,160      $5,102
                                 ---------           ---------      -----------       ---------  ---------    --------   ---------
                                 ---------           ---------      -----------       ---------  ---------    --------   ---------
FIXED CHARGES AND:
PREFERRED STOCK
DIVIDENDS(1)
Interest .......................    $8,752              $1,637           $4,874          $7,252     $7,338      $7,639      $4,389
Preferred stock dividends ......     3,420                 ---              ---             ---        ---         ---         ---
Interest capitalized                   ---                 ---              ---             ---        ---         ---         ---
Portion of rent expense
  representative of
  interest .....................     7,330                 497              867           1,344      1,323       1,295       1,271
Amortization of loan costs
  expensed .....................       811                 110              143             192        200         266         275
Amortization of loan costs
  capitalized ..................       ---                 ---              ---             ---        ---         ---         ---
                                 ---------           ---------      -----------       ---------  ---------    --------   ---------
Total fixed charges ............  $ 20,313              $2,244         $  5,884        $  8,788   $  8,861      $9,200      $5,935
                                 ---------           ---------      -----------       ---------  ---------    --------   ---------
                                 ---------           ---------      -----------       ---------  ---------    --------   ---------
Ratio of earnings to fixed
  charges ......................     1.65x               3.96x            0.98x           0.61x      0.22x       0.45x       0.86x
                                 ---------           ---------      -----------       ---------  ---------    --------   ---------
                                 ---------           ---------      -----------       ---------  ---------    --------   ---------
</TABLE>



- -----------------
(1) Prior to May 18, 1998, no preferred stock had been issued or was 
outstanding.


<PAGE>

                         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 400,000,000 shares of its preferred and
common stock and to the incorporation by reference therein of our reports (i)
dated February 10, 1998, except for the last two paragraphs in Note 15, as to
which the date is March 18, 1998, with respect to the consolidated financial
statements and schedule of the Company for the period August 21, 1997 (date of
commencement of operation) to December 31, 1997, (ii) dated February 10, 1998
with respect to the combined financial statements of SL Green Predecessor and
schedule for the period January 1, 1997 to August 20, 1997 and for the two years
in the period ended December 31, 1996, and (iii) dated February 10, 1998 with
respect to 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
two years in the period ended December 31, 1996, included in its Annual Report
on Form 10-K for the year ended December 31, 1997, filed with the Securities and
Exchange Commission on March 31, 1998. We also consent to the use of our reports
(i) dated December 16, 1997 with respect to the statements of revenues and
certain expenses for the property and mortgage of 17 Battery Place for the year
ended December 31, 1996, included in its Form 8-K/A, dated December 18, 1997 and
filed with the Securities and Exchange Commission on March 3, 1998; (i) dated
March 13, 1998 with respect to the statement of revenues and certain expenses
for the 1466 Broadway property for the year ended December 31, 1997, and (ii)
dated March 13, 1998 with respect to the statement of revenues and certain
expenses for the 420 Lexington Avenue leasehold interest for the year ended
December 31, 1997, included in its Form 8-K/A, dated March 18, 1998 and filed
with the Securities and Exchange Commission on May 11, 1998; (i) dated June 5,
1998 with respect to the statement of revenues and certain expenses for the 1412
Broadway property for the fiscal year ended April 30, 1998, included in its Form
8-K/A, dated August 14, 1998 and filed with the Securities and Exchange
Commission on October 28, 1998. Additionally, we also consent to the use of our
reports (i) dated March 11, 1998 with respect to the statement of revenues and
certain expenses for the 321 West 44th Street property for the year ended
December 31, 1997, (ii) dated March 24, 1998 with respect to the statement of
revenues and certain expenses for the 711 Third Avenue leasehold interest for
the year ended December 31, 1997, (iii) dated March 31, 1998 with respect to the
statement of revenues and certain expenses for the 440 Ninth Avenue property for
the year ended December 31, 1997, (iv) dated March 31, 1998 with respect to the
statement of revenues and certain expenses for the 38 East 30th Street property
for the year ended December 31, 1997, and (v) dated March 31, 1998 with respect
to the statement of revenues and certain expenses for the 116 Nassau Street
property for the year ended December 31, 1997, included in its Form 8-K, dated
April 24, 1998 and filed with the Securities and Exchange Commission on May 11,
1998.


                                                       /s/ Ernst & Young LLP

New York, New York
December 4, 1998



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