BOSTON PROPERTIES INC
10-K405, 1998-03-31
REAL ESTATE
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<PAGE>
 
                       SECURITIES AND EXCHANGE COMMISSION
                            Washington, D.C.  20549
                                   FORM 10-K

     [X]  ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES
                          EXCHANGE ACT OF 1934

                     For the fiscal year ended December 31, 1997

     [_]  TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES
                    EXCHANGE ACT OF 1934 (NO FEE REQUIRED)

            For the transition period from __________to __________

                        Commission File Number  1-13087

                            BOSTON PROPERTIES, INC.
             (Exact name of Registrant as specified in its Charter)

Delaware                                                       04-2473675
(State or other jurisdiction                           (IRS Employer Id. Number)
of incorporation or organization)

8 Arlington Street
Boston, Massachusetts                                             02116
(Address of principal executive offices)                        (Zip Code)

      Registrant's telephone number, including area code:  (617) 859-2600

        Securities registered pursuant to Section 12(b) of the Act: None

     Title of Each Class                 Name of Exchange on Which Registered
     -------------------                 ------------------------------------
Common Stock, Par Value $.01             New York Stock Exchange
Preferred Stock Purchase Rights

          Securities registered pursuant to Section 12(g) of the Act:



Indicate by check mark if disclosure of delinquent filers pursuant to Item 405
of Regulation S-K is not contained herein, and will not be contained, to the
best of Registrant's knowledge, in definitive proxy or information statements
incorporated by reference in Part III of this Form 10-K.  Yes [X] No [_]

As of March 24, 1998, the aggregate value of the 59,098,500 Common Shares held
by non-affiliates of the Registrant was $2,031,510,938 based upon the closing
price of $34.375 on the New York Stock Exchange composite tape on such date.
(For this computation, the Registrant has excluded the market value of all
Common Shares reported as beneficially owned by executive officers and directors
of the Registrant; such exclusion shall not be deemed to constitute an admission
that any such person is an "affiliate" of the Registrant.) As of March 24, 1998,
there were 61,694,041 Common Shares outstanding.

Certain information contained in the Company's Proxy Statement relating to its
Annual Meeting of Stockholders to be held May 6, 1998 is incorporated by
reference in Part III, Items 10, 11, 12 and 13.



<PAGE>
 
                               TABLE OF CONTENTS

ITEM NO.                          DESCRIPTION                           PAGE NO.

PART I

1.         BUSINESS....................................................     1

2.         PROPERTIES..................................................     9

3.         LEGAL PROCEEDINGS...........................................    11
      
4.         SUBMISSION OF MATTERS TO A VOTE OF SECURITY HOLDERS.........    11

PART II

5.         MARKET FOR REGISTRANT'S COMMON EQUITY AND RELATED
            STOCKHOLDER MATTERS........................................    11
      
6.         SELECTED FINANCIAL DATA.....................................    13

7.         MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION 
            AND RESULTS OF OPERATIONS..................................    16

8.         FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA.................    25
      
9.         CHANGES IN AND DISAGREEMENTS WITH ACCOUNTANTS ON ACCOUNTING 
            AND FINANCIAL DISCLOSURE...................................    25

PART III

10.        DIRECTORS AND EXECUTIVE OFFICERS OF THE REGISTRANT..........    25

11.        EXECUTIVE COMPENSATION......................................    25

12.        SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND 
            MANAGEMENT.................................................    25

13.        CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS..............    26

PART IV

14.        EXHIBITS, FINANCIAL STATEMENT SCHEDULES, AND REPORTS ON 
            FORM 8-K...................................................    27

           SIGNATURES..................................................    28
<PAGE>
 
                                    PART I

Item 1.   Business

General

     Boston Properties, Inc. (the "Company") is one of the largest owners and
developers of office properties in the United States, with a significant
presence in Greater Boston, Massachusetts, Greater Washington, D.C., midtown
Manhattan, New York, Baltimore, Maryland and Richmond, Virginia.  The Company is
a fully integrated self-administered and self-managed real estate company and
expects to qualify as a real estate investment trust ("REIT") for the taxable
year ended December 31, 1997.  The Company was formed to succeed to the real
estate development, redevelopment, acquisition, management, operating and
leasing businesses associated with the predecessor company founded by Mortimer
B. Zuckerman and Edward H. Linde in 1970.  The term "Boston Properties
Predecessor Group" or "Predecessor" as used herein refers to the Company and the
entities that owned interests in one or more properties that were contributed to
the Company in connection with the Company's initial public offering in June
1997 (the "Initial Offering").  The term "Company" as used herein means Boston
Properties, Inc. and its subsidiaries on a consolidated basis (including Boston
Properties Limited Partnership and its subsidiaries) or, where the context so
requires, Boston Properties, Inc., and, as the context may require, their
predecessors.

     The Company's portfolio currently consists of 92 properties (the
"Properties"), including six properties currently under development by the
Company (the "Development Properties"). The Properties consist of 79 office
properties (the "Office Properties"), including 48 Class A office buildings (the
"Class A Office Buildings") and 31 properties that support both office and
technical uses (the "R&D Properties"); nine industrial properties (the
"Industrial Properties"); three hotels (the "Hotel Properties"); and one parking
garage (the "Garage Property"). Five of the Office Properties are Development
Properties and are referred to as the "Office Development Properties." One Hotel
Property is a Development Property and is referred to as the "Hotel Development
Property." The Company considers Class A Office Buildings to be centrally
located buildings that are professionally managed and maintained, attract high-
quality tenants and command upper-tier rental rates, and that are modern
structures or have been modernized to compete with newer buildings.

     Over its 27-year history, the Company has developed 83 properties totaling
approximately 15.3 million square feet, including properties developed for third
parties and the six Development Properties currently under development.  The
Company's current portfolio of 92 Properties includes 60 of these company-
developed properties.

     The Company has a $300 million unsecured line of credit with BankBoston,
N.A., as agent, that expires in June 2000 (the "Unsecured Line of Credit").  As
of March 24, 1998, there were no amounts outstanding under the Unsecured Line of
Credit. Reference is made to "Item 7. Management's Discussion and Analysis of
Financial Condition and Results of Operations - Liquidity and Capital Resources"
for additional information regarding the Company's Unsecured Line of Credit and
outstanding indebtedness.

                                       1
<PAGE>
 
     The Company is a full service real estate company, with substantial in-
house expertise and resources in acquisitions, development, financing,
construction management, property management, marketing, leasing, accounting,
tax and legal services.  As of December 31, 1997, the Company had 323 employees,
including 109 professionals.  The Company's 16 senior officers, together with 
Mr. Zuckerman, Chairman of the Board, have an average of 25 years experience in
the real estate industry and an average of 16 years tenure with the Company. The
Company's headquarters are located at 8 Arlington Street, Boston, Massachusetts
02116 and its telephone number is (617) 859-2600. In addition, the Company has
regional offices at the U.S. International Trade Commission Building at 500 E.
Street, SW, Washington, D.C. 20024 and at 599 Lexington Avenue, New York, New
York 10002.

The Operating Partnership

     Boston Properties Limited Partnership, a Delaware limited partnership (the
"Operating Partnership"), is the entity through which the Company conducts
substantially all of its business and owns (either directly or through
subsidiaries) substantially all of its assets. As of March 24, 1998, the Company
holds 77.0% of the Operating Partnership's units of general and limited
partnership interest. This structure is commonly referred to as an umbrella
partnership REIT or UPREIT. The Company's partnership interests in the Operating
Partnership entitle it to share in cash distributions from, and in the profits
and losses of, the Operating Partnership in proportion to its percentage
interest therein and generally entitle the Company to vote on all matters
requiring a vote of the partners. The other partners of the Operating
Partnership are persons who contributed their direct or indirect interests in
certain properties to the Operating Partnership in connection with the Company's
Initial Offering or subsequent property acquisitions by the Company for units of
limited partnership interest in the Operating Partnership ("OP Units").
Beginning on August 23, 1998 (or such later date as a holder of OP Units may
have agreed), the Operating Partnership will be obligated to redeem each OP Unit
at the request of the holder thereof for cash equal to the fair market value of
one share of Common Stock at the time of such redemption (determined in
accordance with the provisions of the Amended and Restated Agreement of Limited
Partnership of the Operating Partnership, as amended), provided that the Company
may elect to acquire any such OP Unit presented for redemption for one share of
Common Stock or an amount of cash of the same value. The Company presently
anticipates that it will elect to issue Common Stock in connection with each
such redemption rather than having the Operating Partnership pay cash. With each
such redemption, the Company's percentage ownership in the Operating Partnership
will increase. In addition, whenever the Company issues shares of Common Stock,
the Company will be obligated to contribute any net proceeds therefrom to the
Operating Partnership and the Operating Partnership will be obligated to issue
an equivalent number of OP Units to the Company.

                                 Recent Events

Recent Property Acquisitions

     On September 11, 1997, the Company acquired 280 Park Avenue, New York, New
York for approximately $322.7 million (including closing costs).  This Class A
Office Building is located in the Park Avenue submarket of midtown Manhattan and
contains approximately 1.2 

                                       2
<PAGE>
 
million net rentable square feet. The Company anticipates investing
approximately $29.0 million in tenant improvements, leasing commissions and
building systems improvements. The Property consists of two linked towers of 30
and 42 stories.

     On October 23, 1997, the Company acquired 100 East Pratt Street in
Baltimore, Maryland for $137.5 million in cash (including closing costs) and the
issuance of 500 shares of the Company's Common Stock.  This Class A Office
Building contains approximately 635,000 net rentable square feet and an eight-
story parking garage.

     On November 21, 1997, the Company acquired 875 Third Avenue, New York, New
York for approximately $215.1 million (including closing costs).  This Class A
Office Building is located in the East Side submarket of midtown Manhattan and
contains approximately 682,000 net rentable square feet.

     On January 22, 1998, the Company acquired Riverfront Plaza in Richmond,
Virginia for approximately $174.4 million.  This Class A Office Building
contains approximately 900,000 net rentable square feet.

     On February 2, 1998, the Company acquired the Mulligan/Griffin Portfolio, a
portfolio of nine office buildings and six parcels of land located in Fairfax
County, Virginia and Montgomery County, Maryland for approximately 
$257.9 million (including closing costs). The Mulligan/Griffin Portfolio
contains approximately 1,277,000 net rentable square feet of office space and
30.7 acres of land.

Recent Financing Activity

     On September 21, 1997, in conjunction with the acquisition of 280 Park
Avenue, the Company obtained a $220.0 million loan from Chase Manhattan Bank.
Under the terms of such loan the Company was required to make interest only
payments based on the contracted London Interbank Offering Rate ("LIBOR") plus
1.0% until the year 2000 when the Company would then be required to make monthly
principal and interest payments.  On November 4, 1997, the Company entered into
a swap transaction with Chase Manhattan Bank with respect to this loan. The swap
transaction had the effect of fixing the interest rate with respect to 
$213.0 million of the total indebtedness on the loan at 7.0%. The Company
continues to pay interest on the remaining $7.0 million of indebtedness at LIBOR
plus 1.0%.

     On January 30, 1998, the Company completed a public offering of 23,000,000
shares of Common Stock (including 3,000,000 shares issued pursuant to the
exercise of the underwriters' overallotment options) at $35.125 per share,
resulting in gross proceeds of approximately $807.9 million and net proceeds to
the Company of approximately $766.5 million.

                                       3
<PAGE>
 
                         Business and Growth Strategies

Business Strategy

     The Company's primary business objective is to maximize growth in net cash
available for distribution and to enhance the value of its portfolio in order to
maximize total return to stockholders.  The Company's strategy to achieve this
objective is: (i) to selectively acquire and develop properties in the Company's
existing markets, adjacent suburban markets and in new markets that present
favorable opportunities; (ii) to maintain high lease renewal rates at rents that
are at the high end of the markets in which the Properties are located, and to
continue to achieve high room rates and occupancy rates in the Hotel Properties;
and (iii) to selectively provide fee-based development consulting and project
management services to third parties.

Growth Strategies

     External Growth

     The Company believes that it is well positioned to realize significant
growth through external asset development and acquisition.  The Company believes
that this development experience and the Company's organizational depth
positions the Company to continue to develop a range of property types, from
single-story suburban properties to high-rise urban developments, within budget
and on schedule.  Other factors that contribute to the Company's competitive
position include: (i) the significant increase in demand for new, high quality
office and industrial space in the Company's core market areas; (ii) the
Company's control of sites (including sites under contract or option to acquire)
in its core markets that will support approximately 2.3 million square feet of
new development through fee ownership, contract ownership, and joint venture
relationships; (iii) the Company's reputation gained through the stability and
strength of its existing portfolio of properties; (iv) the Company's
relationships with leading national corporations and public institutions seeking
new facilities and development services; (v) the Company's relationships with
nationally recognized financial institutions that provide capital to the real
estate industry; and (vi) the substantial amount of commercial real estate owned
by domestic and foreign institutions, private investors, and corporations who
are seeking to sell such assets in the Company's market areas.

     The Company has targeted four areas of development and acquisition as
significant opportunities to execute the Company's external growth strategy:

          Acquire assets and portfolios of assets from institutions or
     individuals.  The Company believes that due to its size, management
     strength and reputation it will be in an advantageous position to acquire
     portfolios of assets or individual properties from institutions or
     individuals.  Some of these properties may be acquired for cash but the
     Company believes that it is particularly well positioned to appeal to
     sellers wishing to convert on a tax deferred basis their ownership of
     property to the ownership of equity in a diversified real estate operating
     company that offers liquidity through access to the public equity markets.
     In addition, the Company may pursue mergers with and acquisitions of
     compatible real estate firms.  The ability to offer OP Units to sellers who
     would 

                                       4
<PAGE>
 
     otherwise recognize a gain upon a sale of assets for cash or Common Stock
     may facilitate this type of transaction on a tax-efficient basis.

          Acquire existing underperforming assets and portfolios of assets.  The
     Company has actively pursued and continues to pursue opportunities to
     acquire existing buildings that, while currently generating income, are
     either underperforming the market due to poor management or are currently
     leased at below market rents with anticipated roll-over of space.  These
     opportunities may include the acquisition of entire portfolios of
     properties.  The Company believes that because of its in-depth market
     knowledge and development experience in each market in which it currently
     operates, its national reputation with brokers, financial institutions and
     others involved in the real estate market and its access to competitively-
     priced capital, the Company is well-positioned to identify and acquire
     existing, underperforming properties for competitive prices and to add
     significant additional value to such properties through its effective
     marketing strategies and responsive property management program.

          Pursue development and land acquisitions in selected submarkets.  The
     Company believes that development of well-positioned office buildings and
     R&D properties is currently or will be justified in many of the submarkets
     in which the Company has a presence.  The Company believes in acquiring
     land in response to market conditions that allow for the development of
     such land in the relatively near term.  Over its 27 year history, the
     Company has established a successful record of carefully timing land
     acquisitions in submarkets where the Company can become one of the market
     leaders in establishing rent and other business terms.  The Company
     believes that there are opportunities in its existing and other markets to
     acquire land with development potential at key locations in markets which
     are experiencing growth.

          In the past, the Company has been particularly successful at acquiring
     sites or options to purchase sites that need governmental approvals before
     the announcement of development.  Because of the Company's development
     expertise, knowledge of the governmental approval process and reputation
     for quality development with local government approval bodies, the Company
     generally has been able to secure the permits necessary to allow
     development, thereby enabling the Company to profit from the increase in
     their value once the necessary permits have been obtained.

          Provide third-party development management services.  While the
     primary objective of the Company has been, and will continue to be, the
     development and acquisition of quality, income producing buildings to be
     held for long term ownership, a select amount of comprehensive project-
     level development management services for third parties will be an element
     of the continued growth and strategy of the Company.  The Company believes
     that third-party development projects permit the Company to: (i) create
     relationships with major institutions and corporations that lead to new
     development opportunities; (ii) continue to enhance the Company's
     reputation in its core markets; (iii) create opportunities to enter new
     markets; and (iv) leverage its operating overhead.

                                       5
<PAGE>
 
     Internal Growth

     The Company believes that significant opportunities exist to increase cash
flow from its existing Properties because they are high quality properties in
desirable locations in submarkets that, in general, are experiencing rising
rents, low vacancy rates and increasing demand for office and industrial space.
In addition, the Company's Properties are in markets where, in general, supply
is limited by the lack of available sites and the difficulty of receiving the
necessary approvals for development on vacant land.  The Company's strategy for
maximizing the benefits from these opportunities is (i) to provide high quality
property management services using its own employees in order to enhance tenant
preferences for renewal, expansion and relocation in the Company's properties,
and (ii) to achieve speed and transaction cost efficiency in replacing departing
tenants through the use of in-house services for marketing, lease negotiation,
and design and construction of tenant improvements.  In addition, the Company
believes that the Hotel Properties will add to the Company's internal growth
because of their desirable locations in the downtown Boston and East Cambridge, 
Massachusetts submarkets, which are experiencing high occupancy rates and
continued growth in room rates, and their effective management by Marriott/(R)/,
which has achieved high guest satisfaction and limitations on increases in
operating costs.

          Cultivate existing submarkets.  In choosing locations for its
     properties, the Company has paid particular attention to transportation and
     commuting patterns, physical environment, adjacency to established business
     centers, proximity to sources of business growth and other local factors.
     Substantially all of the Company's square footage of Office Properties are
     located in fourteen submarkets in Greater Boston, Massachusetts, Greater
     Washington, D.C., midtown Manhattan, New York, Baltimore, Maryland, and
     Richmond, Virginia.

          Many of these submarkets are experiencing increasing rents and as a
     result current market rates often exceed the rents being paid by current
     tenants in the Properties.  The Company expects that leases expiring over
     the next three years in these submarkets will be renewed, or space re-let,
     at higher rents.  Based on leases in place at December 31, 1997, leases
     with respect to 7.6% and 5.1% of the Office and Industrial Properties will
     expire in calendar years 1998 and 1999, respectively.  The actual rental
     rates at which available space will be re-let will depend on prevailing
     market factors at the time.  There can be no assurance that the Company
     will re-let such space at an increased, or even at the then current, rental
     rate.

          Directly manage properties to maximize the potential for tenant
     retention.  The Company itself provides property management services,
     rather than contracting for this service, to achieve awareness of and
     responsiveness to tenant needs.  The Company and the Properties also
     benefit from cost efficiencies produced by an experienced work force
     attentive to preventive maintenance and energy management and from the
     Company's continuing programs to assure that its property management
     personnel at all levels remain aware of their important role in tenant
     relations.  The Company has long recognized that renewal of existing tenant
     leases, as opposed to tenant replacement, often provides the best operating
     results, because renewals minimize transaction costs associated with

                                       6
<PAGE>
 
     marketing, leasing and tenant improvements and avoid interruptions in
     rental income during periods of vacancy and renovation of space.

          Replace tenants quickly at best available market terms and lowest
     possible transaction costs.  The Company believes that it has a competitive
     advantage in attracting new tenants and achieving rental rates at the
     higher end of its markets as a result of its well-located, well-designed
     and well-maintained properties, its reputation for high quality building
     services and responsiveness to tenants, and its ability to offer expansion
     and relocation alternatives within its submarkets.  The Company's objective
     throughout this process is to obtain the highest possible rental terms and
     to achieve rent commencement for new tenancies as quickly as possible, and
     the Company believes that its use of in-house resources for marketing,
     leasing and tenant improvements continues to result in lower than average
     transaction costs.

                              The Hotel Properties

     To assist the Company in maintaining its status as a REIT, the Company
leases the two in-service Hotel Properties, pursuant to a lease with a
participation in the gross receipts of such Hotel Properties, to a lessee ("ZL
Hotel LLC") in which Messrs. Zuckerman and Linde are the sole member-managers.
Messrs. Zuckerman and Linde have a 9.8% economic interest in such lessee and one
or more unaffiliated charities have a 90.2% economic interest.  Marriott
International, Inc. manages these Hotel Properties under the Marriott/(R)/ name
pursuant to a management agreement with the lessee.  Under the REIT
requirements, revenues from a hotel are not considered to be rental income for
purposes of certain income tests which a REIT must meet. Accordingly, in order
to maintain its qualification as a REIT, the Company has entered into the
participating leases described above to provide revenue which qualifies as
rental income under the REIT requirements.  The Company intends to make similar
arrangements with respect to the Hotel Development Property.

                             Environmental Matters

     Some of the Properties are located in urban and industrial areas where fill
or current or historical industrial uses of the areas have caused site
contamination.  With respect to all of the Properties, independent environmental
consultants have been retained in the past to conduct or update Phase I
environmental assessments (which generally do not involve invasive techniques
such as soil or ground water sampling) and asbestos surveys on all of the
Properties.  These environmental assessments have not revealed any environmental
conditions that the Company believes will have a material adverse effect on its
business, assets or results of operations, and the Company is not aware of any
other environmental condition with respect to any of the Properties which the
Company believes would have such a material adverse effect. See "Management's 
Discussion and Analysis of Financial Condition and Results of Operations--
Environmental Matters."

                                       7
<PAGE>

                                  Competition

     The Company competes in the leasing of office and industrial space with a
considerable number of other realty concerns, some of which may have greater
marketing and financial resources than the Company.  In addition, the Company's
in-service Hotel Properties compete for guests with other hotels, some of which
may have greater marketing and financial resources than the Company and
Marriott/(R)/ International, Inc.

                                       8
<PAGE>
 
                                  Seasonality

     The Company's two in-service Hotel Properties traditionally have
experienced significant seasonality in their operating income, with average
weighted net operating income by quarter over the three years 1995 through 1997
as follows:

     First Quarter      Second Quarter     Third Quarter      Fourth Quarter
     -------------      --------------     -------------      --------------
          13%                30%                32%                 25%

     The Company's Office and Industrial Properties and the Garage Property have
not traditionally experienced significant seasonality.



Item 2.   Properties

     The Company's portfolio currently consists of 92 Properties, including six
Development Properties.  The Properties consist of 79 Office Properties,
including 48 Class A Office Buildings and 31 R&D Properties; nine Industrial
Properties; three Hotel Properties; and one Garage Property.  In addition, the
Company owns an additional thirteen parcels of land for future development.  The
following table sets forth information relating to the Properties currently
owned by the Company:

<TABLE>
<CAPTION>
                                                                                       %           Year(s) Built/
        Property Name                                     Market                    Ownership      Renovated (1)    
       --------------                                     ------                    ---------      -------------    
<S>                                                       <C>                       <C>           <C> 
Office Properties:
  Class A Office Properties:
       280 Park Avenue                                    New York, NY                100.0%                 1968            
       599 Lexington Avenue                               New York, NY                100.0%                 1986            
       Riverfront Plaza                                   Richmond, VA                100.0%                 1990            
       875 Third Avenue                                   New York, NY                100.0%                 1982            
       Democracy Center                                   Bethesda, MD                100.0%        1985-88/94-96            
       100 East Pratt Street                              Baltimore, MD               100.0%            1975/1991             
       Two Independence Square                            SW, Washington, D.C.        100.0%                 1992            
       Capital Gallery                                    SW, Washington, D.C.        100.0%                 1981            
       One Independence Square                            SW, Washington, D.C.        100.0%                 1991            
       2300 N Street                                      NW, Washington, D.C.        100.0%                 1986            
       National Imagery and Mapping Agency Building       Reston, VA                  100.0%            1987/1988           
       Reston Town Center Office Complex                  Reston, VA                  100.0%                 1984            
       Lockheed Martin Building                           Reston, VA                  100.0%            1987/1988           
       The U.S. International Trade Commission Building   SW, Washington, D.C.        100.0%                 1987            
       One Cambridge Center                               Cambridge, MA               100.0%                 1987            
       Newport Office Park                                Quincy, MA                  100.0%                 1988            
       Lexington Office Park                              Lexington, MA               100.0%                 1982            
       191 Spring Street                                  Lexington, MA               100.0%            1971/1995             
       Ten Cambridge Center                               Cambridge, MA               100.0%                 1990            
       10 & 20 Burlington Mall Road                       Burlington, MA              100.0%      1984-1986/95-96         
       Waltham Office Center                              Waltham, MA                 100.0%      1968-1970/87-88         
       Montvale Center                                    Gaithersburg, MD             75.0%                 1987            
       91 Hartwell Avenue                                 Lexington, MA               100.0%              1985/96         
       Three Cambridge Center                             Cambridge, MA               100.0%                 1987            
       201 Spring Street                                  Lexington, MA               100.0%                 1997            
       Bedford Business Park                              Bedford, MA                 100.0%                 1980            
       Eleven Cambridge Center                            Cambridge, MA               100.0%                 1984            
       33 Hayden Avenue                                   Lexington, MA               100.0%                 1979            
       Decoverly Two                                      Rockville, MD               100.0%                 1987            
       170 Tracer Lane                                    Waltham, MA                 100.0%                 1980            
       32 Hartwell Avenue                                 Lexington, MA               100.0%       1968-1979/1987  
       195 West Street                                    Waltham, MA                 100.0%                 1990            
       100 Hayden Avenue                                  Lexington, MA               100.0%                 1985            
       204 Second Avenue                                  Waltham, MA                 100.0%            1981/1993       
       92 Hayden Avenue                                   Lexington, MA               100.0%            1968/1984       
       8 Arlington Street                                 Boston, MA                  100.0%       1860-1920/1989  
Subtotal for Office Properties ............................................................                   
</TABLE>

                                       9
<PAGE>
 
<TABLE>
<CAPTION>
                                                                                   %           Year(s) Built/
        Property Name                                 Market                    Ownership      Renovated (1)    
       --------------                                 ------                    ---------      -------------    
<S>                                                   <C>                       <C>           <C> 
R & D Properties:                                                                                                              
       Bedford Business Park                          Bedford, MA                 100.0%         1962-1978/96    
       910 Clopper Road                               Gaithersburg, MD            100.0%                 1982            
       Fullerton Square                               Springfield, VA             100.0%                 1987            
       Hilltop Business Center                        South San Francisco, CA      35.7%         early 1970's    
       7435 Boston Boulevard, Building One            Springfield, VA             100.0%                 1982            
       7601 Boston Boulevard, Building Eight          Springfield, VA             100.0%                 1986            
       8000 Grainger Court, Building Five             Springfield, VA             100.0%                 1984            
       7700 Boston Boulevard, Building Twelve         Springfield, VA             100.0%                 1997            
       7500 Boston Boulevard, Building Six            Springfield, VA             100.0%                 1985            
       7501 Boston Boulevard, Building Seven          Springfield, VA             100.0%                 1997            
       7600 Boston Boulevard, Building Nine           Springfield, VA             100.0%                 1987            
       Fourteen Cambridge Center                      Cambridge, MA               100.0%                 1983            
       164 Lexington Road                             Billerica, MA               100.0%                 1982            
       930 Clopper Road                               Gaithersburg, MD            100.0%                 1989            
       Sugarland Building Two                         Herndon, VA                 100.0%            1986/1997       
       7374 Boston Boulevard, Building Four           Springfield, VA             100.0%                 1984            
       Sugarland Building One                         Herndon, VA                 100.0%            1985/1997       
       8000 Corporate Court, Building Eleven          Springfield, VA             100.0%                 1989            
       7451 Boston Boulevard, Building Two            Springfield, VA             100.0%                 1982            
       17 Hartwell Avenue                             Lexington, MA               100.0%                 1968            
       7375 Boston Boulevard, Building Ten            Springfield, VA             100.0%                 1988            
Subtotal for R & D Properties ...................................................                             
                                                                                                              
Industrial Properties:
       2391 West Winton Avenue                        Hayward, CA                 100.0%                 1974            
       40-46 Harvard Street                           Westwood, MA                100.0%            1967/1996       
       38 Cabot Boulevard                             Bucks County, PA            100.0%            1972/1984       
       6201 Columbia Park Road, Building Two          Landover, MD                100.0%                 1986            
       2000 South Club Drive, Building Three          Landover, MD                100.0%                 1988            
       25-33 Dartmouth Street                         Westwood, MA                100.0%            1966/1996       
       1950 Stanford Court, Building One              Landover, MD                100.0%                 1986            
       560 Forbes Boulevard                           South San Francisco, CA      35.7%         early 1970's    
       430 Rozzi Place                                South San Francisco, CA      35.7%         early 1970's    
Subtotal for Industrial Properties ..............................................                             
                                                                                                              
Development Properties:
       One and Two Reston Overlook                    Reston, VA                     25%                 1999            
       One Freedom Square                             Reston, VA                     25%                 1999            
       Eight Cambridge Center                         Cambridge, MA                 100%                 1999            
       181 Spring Street                              Lexington, MA                 100%                 1999            
Subtotal for Development Properties ...................................................                       
                                                                                                              
Consolidated total for all Properties .........................................                               

Hotel Properties:                                                                                                              
       Long Wharf Marriott/(R)/                       Boston, MA                  100.0%                 1982            
       Cambridge Center Marriott/(R)/                 Cambridge, MA               100.0%                 1986            
       Residence Inn by Marriott/(R)/                 Cambridge, MA               100.0%                 1999            
                                                                                                              
Garage Property:
       Cambridge Center North Garage                  Cambridge, MA               100.0%                 1990            
       Structured Parking included in Class
           A Office Buildings                                                                                 
                                                                                                              

Total for all Properties .............................                                                        
                                                                                                              
<CAPTION>
                                                                        # Of           Net
                                                                     Structured     Rentable
                                                          Number       Parking       Square
        Property Name                                  Of Buildings    Spaces         Feet
       --------------                                  ------------    ------         ----
<S>                                                    <C>           <C>           <C> 
Office Properties:
  Class A Office Properties:
       280 Park Avenue                                        1         -           1,198,769
       599 Lexington Avenue                                   1         -           1,000,070
       Riverfront Plaza                                       1         2,178         899,720
       875 Third Avenue                                       1         -             681,669
       Democracy Center                                       3         1,469         680,000
       100 East Pratt Street                                  1           940         633,482
       Two Independence Square                                1           700         579,600
       Capital Gallery                                        1           466         399,549
       One Independence Square                                1           389         337,794
       2300 N Street                                          1           278         280,065
       National Imagery and Mapping Agency Building           1         -             263,870
       Reston Town Center Office Complex                      2         -             261,046
       Lockheed Martin Building                               1         1,206         255,244
       The U.S. International Trade Commission Building       1           214         243,998
       One Cambridge Center                                   1            12         215,385
       Newport Office Park                                    1         -             168,829
       Lexington Office Park                                  2         -             168,500
       191 Spring Street                                      1         -             162,700
       Ten Cambridge Center                                   1         -             152,664
       10 & 20 Burlington Mall Road                           2           207         152,552
       Waltham Office Center                                  3         -             129,658
       Montvale Center                                        1         -             122,157
       91 Hartwell Avenue                                     1         -             122,135
       Three Cambridge Center                                 1         -             107,484
       201 Spring Street                                      1         -             102,000
       Bedford Business Park                                  1         -              90,000
       Eleven Cambridge Center                                1         -              79,616
       33 Hayden Avenue                                       1         -              79,564
       Decoverly Two                                          1         -              77,747
       170 Tracer Lane                                        1         -              73,258
       32 Hartwell Avenue                                     1         -              69,154
       195 West Street                                        1            60          63,500
       100 Hayden Avenue                                      1         -              55,924
       204 Second Avenue                                      1         -              40,974
       92 Hayden Avenue                                       1         -              30,980
       8 Arlington Street                                     1         -              30,526
                                                              --        -----      ----------
Subtotal for Office Properties .......................        43        8,119      10,010,183
                                                              --        -----      ----------
R&D Properties:                                                                                 
       Bedford Business Park                                  2         -             383,704
       910 Clopper Road                                       1         -             180,650
       Fullerton Square                                       2         -             178,841
       Hilltop Business Center                                9         -             144,479
       7435 Boston Boulevard, Building One                    1         -             105,414
       7601 Boston Boulevard, Building Eight                  1         -             103,750
       8000 Grainger Court, Building Five                     1         -              90,465
       7700 Boston Boulevard, Building Twelve                 1         -              82,224
       7500 Boston Boulevard, Building Six                    1         -              79,971
       7501 Boston Boulevard, Building Seven                  1         -              75,756
       7600 Boston Boulevard, Building Nine                   1         -              69,832
       Fourteen Cambridge Center                              1         -              67,362
       164 Lexington Road                                     1         -              64,140
       930 Clopper Road                                       1         -              60,056
       Sugarland Building Two                                 1         -              59,423
       7374 Boston Boulevard, Building Four                   1         -              57,321
       Sugarland Building One                                 1         -              52,797
       8000 Corporate Court, Building Eleven                  1         -              52,539
       7451 Boston Boulevard, Building Two                    1         -              47,001
       17 Hartwell Avenue                                     1         -              30,000
       7375 Boston Boulevard, Building Ten                    1         -              26,865
                                                              --        -----      ----------
Subtotal for R & D Properties ........................        31            0       2,012,590
                                                              --        -----      ----------
                                                                                 
Industrial Properties:
       2391 West Winton Avenue                                1         -             221,000
       40-46 Harvard Street                                   1         -             169,273
       38 Cabot Boulevard                                     1         -             161,000
       6201 Columbia Park Road, Building Two                  1         -              99,885
       2000 South Club Drive, Building Three                  1         -              83,608
       25-33 Dartmouth Street                                 1         -              78,045
       1950 Stanford Court, Building One                      1         -              53,250
       560 Forbes Boulevard                                   1         -              40,000
       430 Rozzi Place                                        1         -              20,000
                                                              --        -----      ----------
Subtotal for Industrial Properties ...................        9             0         926,061
                                                              --        -----      ----------
                                                                                 
Development Properties:
       One and Two Reston Overlook                            2         -             444,000
       One Freedom Square                                     1         -             406,980
       Eight Cambridge Center                                 1         -             175,000
       181 Spring Street                                      1         -              52,000
                                                              --        -----      ----------
Subtotal for Development Properties ..................        5         -           1,077,980
                                                                                   ----------
Consolidated total for all Properties ................        88        8,119      14,026,814
                                                              --        -----      ----------

Hotel Properties:                                                                                
       Long Wharf Marriott/(R)/                               1          -            420,000
       Cambridge Center Marriott/(R)/                         1          -            330,400
       Residence Inn by Marriott/(R)/                         1          -            187,474
                                                              --        -----      ----------
                                                              3          -            937,874
                                                              --        -----      ----------
Garage Property:
       Cambridge Center North Garage                          1         1,170         332,442
                                                             
Structured Parking included in Class
           A Office Buildings                                 -          -          2,880,530
                                                              --        -----      ----------
                                                              1         1,170       3,212,972
                                                              --        -----      ----------
Total for all Properties .............................        92        9,289      18,177,660
                                                              ==        =====      ==========
</TABLE>


                                      10
<PAGE>
 
Item 3.     Legal Proceedings

     Neither the Company, nor its affiliates is presently subject to any 
material litigation or, to the Company's knowledge, has any litigation been
threatened against it or its affiliates other than routine actions and
administrative proceedings substantially all of which are expected to be covered
by liability insurance and in the aggregate are not expected to have a material
adverse effect on the business, financial condition, results of operations, or
liquidity of the Company.

Item 4.     Submission of Matters to a Vote of Security Holders

     No matters were submitted to a vote of the Company's stockholders during
the fourth quarter of the year ended December 31, 1997.

                                    PART II

Item 5.     Market for Registrant's Common Equity and Related Stockholder
            Matters

The Company's Common Stock is listed on the New York Stock Exchange under the
symbol "BXP".  The high and low closing sales prices for the periods indicated
in the table below were:

                                       1997
 Quarter Ended            High         Low         Distributions
 -------------            ----         ---         -------------
June 30, 1997            $27 1/4     $26 1/6          $.035(a)
September 30, 1997        33 1/4      26 5/8           .405(a)
December 31, 1997         34 3/8      30               .405(b)

(a) The Company paid a distribution of $.44 per share on November 21, 1997 with
respect to the period from June 23, 1997 (the closing of the Initial Offering)
through September 30, 1997 which represents a quarterly distribution rate
of $.405 and an annual distribution rate of $1.62 per share of Common Stock.

(b) Paid on January 28, 1998 to stockholders of record on December 26, 1997.

     At March 24, 1998, there were approximately 142 shareholders of record.
This does not include beneficial owners for whom Cede & Co. or others act as
nominee.

     The Company has adopted a policy of paying regular quarterly distributions
on its Common Stock and cash distributions have been paid on the Company's
Common Stock with respect to the period since its inception.

     In order to maintain its qualification as a REIT, the Company must make
annual distributions to its shareholders of at least 95% of its taxable income
(which does not include net capital gains).  Distributions for Federal Income
Tax purposes totaled $.50 per share in 1997. The Company intends that any
dividend paid in respect of its Common Stock during the last quarter of each
year will, if necessary, be adjusted to satisfy the REIT requirement that at
least 

                                       11
<PAGE>
 
95% of taxable income for such taxable year be distributed. The Company has
determined that, for federal income tax purposes, 59% of the total distribution
of $0.845 represented ordinary income to its stockholders.

     On October 23, 1997, in connection with the Company's acquisition of 100
East Pratt Street, the Company issued 500 shares of Common Stock to
International Business Machines Corporation, one of the sellers of the Property.
Such shares were issued in reliance on Section 4(2) of, and Regulation D under,
the Securities Act.

     On November 21, 1997, in connection with the Company's acquisition of 875
Third Avenue, the Company issued 890,869 OP Units to Kenvic Associates, the
contributor of such property.  Such OP Units were issued in reliance on Section
4(2) of, and Regulation D under, the Securities Act.

                                       12
<PAGE>
 
Item 6.     Selected Financial Data

     The following sets forth selected financial and operating data for the
Company on a historical consolidated basis and for the Predecessor on a
historical combined basis.  The following data should be read in conjunction
with the financial statements and notes thereto and Management's Discussion and
Analysis of Financial Condition and Results of Operations included elsewhere in
this Form 10-K.

     Historical operating results of the Company and the Predecessor, including
net income, may not be comparable to future operating results.

<TABLE> 
<CAPTION> 
                                     The Company                            The Predecessor Group
                                     -----------      ---------------------------------------------------------------------
                                                        (in thousands, except per share data)

                                     June 23, 1997    January 1,                       Year ended December 31,
                                      to December    1997 to June                      -----------------------
                                        31, 1997       22, 1997            1996           1995          1994          1993
                                        --------       --------         ----------------------------------------------------
STATEMENT OF OPERATIONS INFORMATION:
<S>                                  <C>             <C>                <C>             <C>           <C>           <C>
Total revenues                          $ 145,643       $ 129,818        $269,933       $248,725      $244,083      $245,561
                                       ----------     -----------        --------       --------      --------      --------

Property expenses                          40,093          27,032          58,195         55,421        53,239        54,766
 
Hotel expenses                                  -          22,452          46,734         44,018        42,753        40,286

General and administrative                  6,689           5,116          10,754         10,372        10,123         9,549

Interest                                   38,264          53,324         109,394        108,793        97,273        90,335

Depreciation and amortization              21,719          17,054          36,199         33,828        33,112        33,148
                                       ----------     -----------          ------         ------        ------        ------
                                                                                      
Income (loss) before minority                                                         
  interests                                38,878           4,840           8,657         (3,707)        7,583        17,477
                                                                                      
Minority interest in property                                                         
  partnerships                               (215)           (235)           (384)          (276)         (412)         (391)
                                       ----------     -----------           -----          -----         -----         -----
                                                                                      
Income(loss) before minority                                                          
  interest in Operating                                                               
  Partnership                              38,663           4,605           8,273         (3,983)        7,171        17,086
                                                                                      
Minority interest in Operating                                                        
Partnership                               (11,437)              -               -              -             -             -
                                      -----------     -----------           -----       --------        ------       -------

Income(loss) before extraordinary     
  item                                    27,226           4,605           8,273          (3,983)        7,171        17,086 
                                                                                      
Extraordinary item                         7,925               -            (994)              -             -             -
                                      ----------     -----------           -----        --------        ------       -------

Net income (loss)                        $35,151          $4,605          $7,279         $(3,983)       $7,171       $17,086
                                      ==========     ===========          ======        ========        ======       =======

Basic earnings per share:                                                             

  Income before extraordinary item         $ .70               -               -              -             -             -

  Extraordinary item                         .21               -               -              -             -             -
                                           -----                                      

  Net income                               $ .91               -               -              -             -             -
                                           =====                                      

  Weighted average common shares                                                      
     outstanding                          38,694               -               -              -             -             -
</TABLE> 
 

                                       13
<PAGE>
 
<TABLE> 
<S>                                 <C>               <C>             <C>               <C>               <C>              <C> 
Diluted earnings per share:

  Income before extraordinary item        $ .70              -                  -                 -               -                -

  Extraordinary item                        .20              -                  -                 -               -                -
                                          -----

  Net income                              $ .90              -                  -                 -               -                -
                                          =====

Weighted average common shares     
  outstanding                            39,108              -                  -                 -               -                -

BALANCE SHEET INFORMATION:

Real estate, before
  accumulated deprecation           $ 1,796,500              -        $ 1,035,571       $ 1,012,324       $ 984,853        $ 983,751

Real estate, after
  accumulated depreciation            1,502,282              -            771,660           773,810         770,763          789,234
     
Cash                                     17,560              -              8,998            25,867          46,289           50,697

Total assets                          1,672,521              -            896,511           922,786         940,155          961,715

Total indebtedness                    1,332,253              -          1,442,476         1,401,408       1,413,331        1,426,882

Shareholders' and owners
  equity (deficit)                      175,048              -          (576,632)         (506,653)       (502,230)        (495,104)

OTHER INFORMATION:

Funds from Operations                  $ 60,008       $ 21,450           $ 36,318          $ 29,151        $ 39,568         $ 49,240

Funds from Operations (Company's 
  share) (1)                             42,258              -                  -                 -               -                -

Cash dividends per common share - 
  annualized                               1.62              -                  -                 -               -                -

Cash flow provided by operating  
  activities                             33,843       $ 25,226             51,531            29,092          45,624           59,834

Cash flow used for investing 
  activities                          (519,743)       (32,844)           (23,689)          (36,844)        (18,424)          (9,437)
     
Cash flow provided by (used in) 
  financing activities                  503,460          9,130           (44,711)          (12,670)        (31,608)         (28,540)

</TABLE>

(1) The White Paper of Funds from Operations approved by the Board of Governors
of the National Association of Real Estate Investment Trusts ("NAREIT") in March
1995 defines Funds from Operations as net income (loss) (computed in accordance
with GAAP), excluding gains (or losses) from debt restructuring and sales of
properties, plus real estate related depreciation and amortization and after
adjustments for unconsolidated partnerships and joint ventures.  The Company
believes that Funds from Operations is helpful to investors as a measure of the
performance of the equity REIT because, along with cash flow from operating
activities, financing  activities and investing activities, it provides 
investors with an indication of the ability of the Company to incur and service
debt, to make capital expenditures and to fund other cash needs.  The Company
computes Funds from Operations in accordance with standards established by
NAREIT which may not be comparable to Funds from Operations reported by other
REIT's that do not define the term in accordance with the current NAREIT
definition or that interpret the current NAREIT definition differently than the
Company.  Funds from Operations does not represent cash generated from operating
activities determined in accordance with GAAP and should not be considered as an
alternative to net income (determined in accordance with GAAP) as a measure of
the Company's liquidity, nor is it indicative of funds available to fund the
Company's cash needs, including its ability to make cash distributions.

                                       14
<PAGE>
 
      Funds from Operations for the respective periods is calculated as follows:

<TABLE> 
<CAPTION> 
 
                                              The Company                          The Predecessor Group
                                              -----------    ----------------------------------------------------------------
                                                                            (in thousands)

                                                 June 23,
                                                 1997 to      January 1,                  Year ended December 31,
                                                 December    1997 to June
                                                 31, 1997      22, 1997       1996          1995           1994         1993
                                                 --------      --------      ------------------------------------------------ 

<S>                                              <C>           <C>           <C>          <C>            <C>          <C> 
Income (loss) before minority interest and       
   extraordinary item                            $38,878       $ 4,840       $ 8,657      $(3,707)       $ 7,583      $17,477

Add:
   Real estate depreciation and                   
     amortization                                 21,417        16,808        35,643       33,240         32,509       32,300

Less:
   Minority property partnership's share            
     of Funds from Operations                       (287)         (198)         (479)        (382)          (524)        (537)
              
   Non-recurring item - significant lease            
     termination fee                                   -             -        (7,503)           -              -            -
                                                 -------       -------       -------      -------        -------      -------
              
Funds from Operations                            $60,008       $21,450       $36,318      $29,151        $39,568      $49,240
                                                 =======       =======       =======      =======        =======      =======
</TABLE>

                                       15
<PAGE>
 
Item 7.    Management's Discussion and Analysis of Financial Condition and
           Results of Operations

     The following discussion should be read in conjunction with the selected
financial data and the historical consolidated and combined financial statements
and related notes thereto for the Company and the Predecessor respectively. The
following discussion is based primarily on the consolidated financial statements
of the Company for the period subsequent to formation of the Company and on the
combined financial statements of the Predecessor for the periods prior to the
formation. The combined financial statements of the Predecessor include the
results of operations from 82 properties for the periods presented. Historical
results and percentage relationships in the Consolidated and Combined Financial
Statements, including trends which might appear, should not be taken as
indicative of future operations or financial position.

Overview

     Certain statements in this Form 10-K, in the Company's press releases, and
in oral statements made by or with the approval of an authorized executive
officer of the Company, constitute "forward-looking statements" as that term is
defined under the Private Securities Litigation Reform Act of 1995 (the "Act")
and releases issued by the Securities and Exchange Commission. The words
"believe," "expect," "anticipate," "intend,""estimate" and other expressions
which are predictions of or indicate future events and trends and which do not
relate to historical matters identify forward-looking statements. Reliance
should not be placed on forward-looking statements because they involve known
and unknown risks, uncertainties and other factors, which may cause the actual
results, performance or achievements of the Company to differ materially from
anticipated future results, performance or achievements expressed or implied by
such forward-looking statements. Factors that could cause actual results to
differ materially from those set forth in the forward-looking statements include
general economic conditions, local real estate conditions, timely re-leasing of
occupied square footage upon expiration, interest rates, availability of equity
and debt financing and other risks detailed from time to time in the Company's
filings with the Securities and Exchange Commission. The Company undertakes no
obligation to publicly update or revise any forward-looking statement, whether
as a result of new information, future events or otherwise.

Results of Operations

     The results of operations for the years ended December 31, 1996 and 1995
includes the operations of the Predecessor. The results of operations for the
year ended December 31, 1997 include the operations of the Predecessor for the
period January 1, 1997 through June 22, 1997 and the operations of the Company
from June 23, 1997 through December 31, 1997.

     Comparison of the year ended December 31, 1997 to the year ended
December 31, 1996:

     Rental revenues increased $38.4 million or 19.7% for the year ended
December 31, 1997 compared to the year ended December 31, 1996 primarily as a
result of (i) the acquisitions of 280 Park Avenue, 100 East Pratt Street and 875
Third Avenue, (ii) the inclusion of revenue from the hotel leases entered into
in connection with the Initial Offering, and (iii) an overall increase in
average occupancy and rental rates.  This was offset by a decrease due to no
lease termination fee 

                                       16
<PAGE>
 
received in the year ended December 31, 1997 compared to a $7.5 million fee
received during 1996.

     Hotel revenue decreased $34.5 million or 52.5% for the year ended
December 31, 1997 compared to the year ended December 31, 1996 primarily because
hotel operating revenue was only recognized for the period from January 1, 1997
to June 22, 1997 as a result of the Operating Partnership entering into a
participating lease with ZL Hotel LLC at the time of the Initial Offering.

     Third party management and development fee income increased $1.8 million or
31.1% for the year ended December 31, 1997 compared to the year ended 
December 31, 1996 primarily as a result of new fees for development services for
projects which began during 1997 and increased fees on existing projects.

     Interest and other income decreased $195,000 or 5.5% primarily due to
a reduction in interest income resulting from a reduction in cash reserves.

     Property expenses increased $8.9 million or 15.3% for the year ended
December 31, 1997 compared to the year ended December 31, 1996 primarily as a
result of the three property acquisitions and overall increases in real estate
taxes.

     Hotel expenses decreased $24.3 million or 52.0% for the year ended
December 31, 1997 compared to the year ended December 31, 1996 because after the
Initial Offering the Company did not manage the Hotel Properties but rather
leased them to ZL Hotel LLC under participating leases.

     Interest expense decreased $17.8 million or 16.3% for the year ended
December 31, 1997 compared to the year ended December 31, 1996 primarily as the
result of the payoff of certain mortgage indebtedness with the proceeds from the
Initial Offering.

     As a result of the foregoing, income before extraordinary items and
minority interest of Boston Properties, Inc. and the Predecessor Group increased
$35.0 million.

     Comparison of the year ended December 31, 1996 to the year ended 
December 31, 1995:

     Rental revenues increased $15.7 million or 8.8% for the year ended
December 31, 1996 compared to the year ended December 31, 1995 primarily as a
result of (i) a $7.5 million lease termination fee received from a tenant at 
599 Lexington Avenue for which the space was immediately re-leased, (ii) an
increase of $2.8 million due to the completion of the redevelopment and leasing
of 191 Spring Street and (iii) an overall increase in average occupancy and
rental rates.

     Hotel revenue increased $4.4 million or 7.1% for the year ended
December 31, 1996 compared to the year ended December 31, 1995 primarily as a
result of an increase in average daily room rates of 7.6%.

     Third party management and development fee income increased $1.3 million or
28.7% for the year ended December 31, 1996 compared to the year ended 
December 31, 1995 primarily 

                                       17
<PAGE>
 
as a result of new fees for development services for projects which began during
1996.

     Interest and other income decreased $166,000 or 4.5 % primarily due to a
reduction in interest income resulting from a reduction in cash reserves.

     Property expenses increased $2.8 million or 5.0% for the year ended
December 31, 1996 compared to the year ended December 31, 1995 primarily as a
result of (i) a $1.1 million increase in utility costs which is partially due to
the increase in occupancy of the properties during 1996 and (ii) an increase of
$0.1 million in real estate taxes.

     Hotel expenses increased $2.7 million or 6.2% primarily as a result of an
increase in average occupancy at the hotels.

     Interest expense increased $601,000 or 0.6% for the year ended
December 31, 1996 compared to the year ended December 31, 1995 primarily as the
result of an increase in interest expense with respect to 191 Spring Street
resulting from placing the property in service and discontinuing the
capitalization of interest, and an increase in total indebtedness from new loans
on Bedford Business Park and Capital Gallery, partially offset by decreases in
interest rates on variable rate loans.

     Depreciation and amortization expense increased $2.4 million or 7.0% as a
result of increased tenant improvement costs incurred during the successful
leasing of available space during 1996 and 1995.

     As a result of the foregoing, income before extraordinary items and
minority interest in property partnerships increased $12.3 million.

Liquidity and Capital Resources

     Cash and cash equivalents were $17.6 and $9.0 million at December 31, 1997
and December 31, 1996, respectively. The increase in cash is primarily a result
of cash flows provided by operating and financing activities offset by cash used
in investing activities. Net cash provided by operating activities was $ 59.0
million for the year ended December 31, 1997 compared to the $51.5 million for
the year ended December 31, 1996. The increase is primarily due to the
transactions related to the acquisition of real estate assets and the operations
of the Company subsequent to the Initial Offering.

     Net cash used in investing activities increased from $23.7 million for the
year ended December 31, 1996 to $552.6 million for the year ended December 31,
1997. This increase is due primarily to the following acquisitions of real
estate assets subsequent to the Initial Offering:
 
           Acquisitions

           On September 11, 1997, the Company acquired 280 Park Avenue in
     midtown Manhattan, NY, a Class A Office Building, for approximately $322.7 
     million. The property is located in the Park Avenue submarket of Manhattan
     and contains approximately 1.2 million net rentable square feet. The
     acquisition was funded by a payment of approximately $102.7 million in cash
     and mortgage financing of $220.0 million.

                                       18
<PAGE>
 
           On October 23, 1997, the Company acquired 100 East Pratt Street in
     Baltimore, Maryland, a Class A Office Building, for $137.5 million in cash
     and the issuance of 500 shares of the Company's Common Stock. The property
     contains approximately 635,000 net rentable square feet and an eight-story
     parking garage.

           On November 21, 1997, the Company acquired 875 Third Avenue, for
     approximately $215.1 million.  The Property is an approximately 682,000
     square foot Class A Office Building located in midtown Manhattan, NY.  The
     acquisition was funded by the assumption of a mortgage note with a fair
     value of $185.6 million, payment of $1.5 million in cash, and the issuance
     of OP Units for a value of approximately $28.0 million.

           In addition to the above acquisitions which closed in 1997, the
     Company closed the following acquisitions during the first quarter of 1998:

           On November 11, 1997, the Company entered into a purchase and sale
     agreement to acquire, for approximately $174.4 million (including closing
     costs), Riverfront Plaza, a Class A Office Building with approximately
     900,000 net rentable square feet located in Richmond, VA. The Company
     completed its acquisition of this property on January 22, 1998. The
     acquisition was funded by a $52.6 million draw under the Unsecured Line of
     Credit and mortgage financing of approximately $121.8 million.

           On November 26, 1997, the Company entered into agreements to acquire,
     for approximately $257.9 million (including closing costs), the
     Mulligan/Griffin Portfolio, a portfolio of nine Office Properties with
     approximately 1,277,000 net rentable square feet and six parcels of land
     aggregating 30.7 acres located in Fairfax County, Virginia and Montgomery
     County, Maryland. The Company completed its acquisition of this portfolio
     on February 2, 1998. The acquisition was funded through the payment of
     approximately $88.5 million in cash, the assumption of mortgage debt with a
     fair value of approximately $118.3 million, the assumption of other
     liabilities of approximately $1.1 million, and the issuance of OP Units
     valued at approximately $50.0 million.

     Net cash provided by (used in) financing activities increased from
$44.7 million used for the year ended December 31, 1996 to cash provided of
$512.6 million for the year ended December 31, 1997.  This increase is primarily
attributable to transactions relating to the Initial Offering, including
proceeds received from the Initial Offering of approximately $839.2 million and
proceeds and assumption of long term debt of $453.0 million offset by the
prepayment of $707.0 million of mortgage notes from proceeds of the Initial
Offering.

     Recent Financing

     On January 30, 1998, the Company completed a public offering (the
"Second Offering") of 23,000,000 shares of Common Stock (including 3,000,000
shares issued pursuant to the exercise of the underwriters' overallotment
options) at $35.125 per share, resulting in gross proceeds of approximately
$807.9 million and net proceeds to the Company of approximately $766.5 million.

     Cash and cash equivalents increased $8.6 million during the year ended
December 31, 

                                       19
<PAGE>
 
1997 compared to a decrease of $16.9 million during the year ended December 31,
1996. The increase is due to a $557.3 million increase in net cash provided by
financing activities and a $7.5 million increase in cash provided by operating
activities, offset by an increase in cash used for investing activities of
approximately $528.9 million. The increase in cash provided by operating
activities is primarily a result of decreased interest payments and increased
rental receipts.

Capitalization

     At December 31, 1997, the Company's total consolidated debt was
approximately $1.3 billion. At December 31, 1997, the Company's outstanding
consolidated debt consisted of approximately $233.0 million under an unsecured
revolving line of credit with BankBoston, as amended (the "Unsecured Line of
Credit") and approximately $1.1 billion of mortgage indebtedness. The weighted
average rate of the Company's consolidated mortgage indebtedness is 7.54% and
the weighted average maturity is approximately 5.6 years.

     Based on the Company's total market capitalization of approximately
$3.2 billion at December 31, 1997 (at the December 31, 1997 closing stock price
of $33.0625 and including the 16,957,328 Units of minority interest in the
Operating Partnership and the Company's consolidated debt), the Company's
consolidated debt represented approximately 42.0% of its total market
capitalization.  Subsequent to the completion of the Second Offering on 
January 30, 1998, based on the Company's total market capitalization of
approximately $4.0 billion (based on the closing price of the Company's Common
Stock on January 26, 1998 of $35.125 and including the 16,957,328 OP Units
(representing the minority interest in the Operating Partnership) and the
Company's consolidated debt), the Company's consolidated debt represented
approximately 30.5% of its total market capitalization.

     The Company utilizes the Unsecured Line of Credit primarily to finance
acquisitions of additional properties, for working capital purposes, and to fund
the development of properties. The Unsecured Line of Credit is a non-recourse
obligation of the Operating Partnership and is guaranteed by the Company.  The
Company's ability to borrow under the Unsecured Line of Credit is subject to the
Company's compliance with a number of customary financial and other covenants on
an ongoing basis,  including (i) loan-to-value ratio against the total borrowing
base not to exceed 65% for the period through April 30, 1998, and 55% subsequent
to April 30, 1998, (ii) a loan-to-value ratio against the total secured
borrowing base not to exceed 55% during the period through April 30, 1998, 50%
during the period from May 1, 1998 through June 30, 1998, and 40% subsequent to
June 30, 1998, (iii) debt service coverage ratio of 1.4 for the borrowing base
and 1.75 for the Company as a whole, a leverage ratio not to exceed 65%, (iv) an
interest rate applicable to any amounts drawn under the Unsecured Line of Credit
for LIBOR based loans shall be equal to a floating rate based on a spread over
LIBOR equal to 125 basis points during the period through January 31, 1998, 
140 basis points during the period from February 1, 1998 through April 30, 1998
and from 90 to 110 basis points after April 30, 1998, depending on the Company's
applicable leverage ratio, (v) limitations on additional indebtedness and
stockholders distributions, and (vi) a minimum net worth requirement. At
December 31, 1997, the Company had the ability to borrow an additional 
$67.0 million under the Unsecured Line of Credit. On January 30, 1998, the
Company repaid the entire amount outstanding under the Unsecured Line of Credit.
As of March 24, 1998 the Company's Unsecured Line of Credit had a total
borrowing capacity of $300 million. The Company is currently negotiating to
increase the total borrowing capacity thereunder to $500 million and expects
such increase to be effective by the beginning of

                                       20
<PAGE>
 
the second calendar quarter although no assurances can be made in this regard.

     The following table sets forth certain information regarding the Mortgage
Debt at December 31, 1997:

                                 Principal
        Properties                Amount     Interest Rate          Maturity
        ----------                ------     -------------          --------
                             (in thousands)  

599 Lexington Avenue              $225,000   7.00%            July 19, 2005 (1)

280 Park Avenue                    220,000   7.00% (2)        September 11, 2002

875 Third Avenue                   185,618   8.00% (3)        December 31, 2002

Two Independence Square            121,822   8.09% (4)        February 27, 2003

One Independence Square             77,743   8.12% (4)        August 21, 2001

2300 N Street                       66,000   6.88%            August 3, 2003

Capital Gallery                     60,029   8.24%            August 15, 2006

10&20 Burlington Mall Road(5)       37,000   8.33%            October 1, 2001

Ten Cambridge Center and
North Garage                        40,000   7.57%            March 29, 2000

191 Spring Street                   23,697   8.50%            September 1, 2006

Bedford Business Park               23,085   8.50%            December 10, 2008

Montvale Center                      7,905   8.59%            December 1, 2006

Newport Office Park                  6,754   8.13%            July 1, 2001

Hilltop Business Center              4,600   LIBOR + 1.50%    December 15, 1998
                                     -----

                                $1,099,253
                                ==========

(1) At maturity the lender has the option to purchase a 33.33% interest in this
Property in exchange for the cancellation of the loan indebtedness.

(2) Outstanding principal of $213,000 bears interest at a fixed rate of 7.00%.
The remaining $7,000 bears interest at a floating rate equal to LIBOR + 1.00%.

(3) The principal amount and interest rate shown have been adjusted to reflect
the fair value of the note.  The actual principal balance at December 31, 1997
was $180,000 and the interest rate was 8.75%.

(4) The principal amount and interest rate shown have been adjusted to reflect
the effective rates on the loans. The actual principal balances at December 31,
1997 were $121,344 and $77,438 respectively. The actual interest rates on the
loans are 7.90%. The interest rates increase to 8.50% on March 25, 1998 and
continues at such rate through the loan expiration.

(5) Includes outstanding indebtedness secured by 91 Hartwell Avenue and 92 and
100 Hayden Avenue.

     The Company has determined that the adequacy of estimated cash flows as
well as expected liquidity sources are adequate to meet its short-term (up to 12
months) liquidity needs. 

                                       21
<PAGE>
 
The Company believes that its principal short-term liquidity needs are to fund
normal recurring expenses, debt service requirements and the minimum
distribution required to maintain the Company's REIT qualifications under the
Internal Revenue Code of 1986, as amended. The Company believes that these needs
will be fully funded from cash flows provided by operating activities.

     The Company expects to meet long-term (greater than 12 months) liquidity
requirements for the costs of development, property acquisitions, scheduled debt
maturities, major renovations, expansions and other non-recurring capital
improvements through the issuance of additional OP Units and equity securities
of the Company and the incurrence of long-term secured and unsecured
indebtedness.  In addition, the Company may finance the development,
redevelopment or acquisition of additional properties by using its Unsecured
Line of Credit.

     Rental revenues, operating expense reimbursement income from tenants, and
income from the operations of the Company's majority-owned affiliate, Boston
Properties Management, Inc. (the "Development and Management Company") are the
Company's principal sources of capital to pay its operating expenses, debt
service and recurring capital expenditures. The Company seeks to increase income
from its existing Properties by maintaining quality standards for its Properties
that promote high occupancy rates and permit increases in rental rates while
reducing tenant turnover and controlling operating expenses. The Development and
Management Company's sole source of income are fees generated by its office and
industrial real estate management, leasing, development and construction
businesses. Consequently, the Company believes its revenues will continue to
provide the necessary funds for its operating expenses, debt service and
recurring capital expenditures.

     Principal sources of funds for acquisitions are expected to include income
from operations, proceeds of offerings, amounts available under the Unsecured
Line of Credit, long-term secured and unsecured indebtedness and sales of real
estate. In addition to funds from the above sources, the Company may acquire
properties or interests therein through the issuance of OP Units.

     During the period from June 23, 1997 through December 31, 1997, the Company
paid or declared quarterly dividends totaling $.845 per common share (consisting
of $.035 related to the period from June 23, 1997 to June 30, 1997 and $.405 for
each of the third and fourth calendar quarters).  The Company intends to
continue paying dividends quarterly. The Company expects to use cash flows from
operating activities to fund dividends to stockholders.

 

Funds from Operations

     The White Paper of Funds from Operations approved by the Board of Governors
of the National Association of Real Estate Investment Trusts ("NAREIT") in March
1995 defines Funds from Operations as net income (loss) (computed in accordance
with GAAP), excluding gains (or losses) from debt restructuring and sales of
properties, plus real estate related depreciation and amortization and after
adjustments for unconsolidated partnerships and joint ventures. The Company
believes that Funds from Operations is helpful to investors as a measure of the
performance of the equity REIT because, along with cash flow from operating
activities,

                                       22
<PAGE>
 
financing activities and investing activities, it provides investors with an
indication of the ability of the Company to incur and service debt, to make
capital expenditures and to fund other cash needs. The Company computes Funds
from Operations in accordance with standards established by NAREIT which may not
be comparable to Funds from Operations reported by other REITs that do not
define the term in accordance with the current NAREIT definition or that
interpret the current NAREIT definition differently than the Company. Funds from
Operations does not represent cash generated from operating activities
determined in accordance with GAAP and should not be considered as an
alternative to net income (determined in accordance with GAAP) as a measure of
the Company's liquidity, nor is it indicative of funds available to fund the
Company's cash needs, including its ability to make cash distributions.


Environmental Matters

     Some of the Properties are located in urban and industrial areas where fill
or current or historical industrial uses of the areas have caused site
contamination.  With respect to all of the Properties, independent environmental
consultants have been retained in the past to conduct or update Phase I
environmental assessments (which generally do not involve invasive techniques
such as soil or ground water sampling) and asbestos surveys on all of the
Properties.  These environmental assessments have not revealed any environmental
conditions that the Company believes will have a material adverse effect on its
business, assets or results of operations, and the Company is not aware of any
other environmental condition with respect to any of the Properties which the
Company believes would have such a material adverse effect.

     With respect to 17 Hartwell Avenue in Lexington, Massachusetts, the Company
received a Notice of Potential Responsibility ("NOR") from the state regulatory
authority on January 9, 1997, related to groundwater contamination.  In
addition, the Company received a Notice of Downgradient Property Status
Submittal from each of two third parties concerning alleged contamination at two
downgradient properties.  17 Hartwell Avenue is a 30,000 square foot office
building occupied by Kendall Company, a division of Tyco International, which
has been the tenant of the entire building for 20 years.  The tenant received a
similar NOR and responded to the state regulatory authority that it would
conduct an investigation.  That investigation is underway and has identified the
presence of hazardous substances in a catch basin along the property line.  It
is expected that the tenant will take any necessary response actions.  The lease
with the tenant contains a provision pursuant to which the tenant indemnifies
the Company against such liability.  The Company has notified the state
regulatory authority that it will cooperate with and monitor the tenant's
investigation.

     On January 15, 1992, 91 Hartwell Avenue in Lexington, Massachusetts was
listed by the state regulatory authority as an unclassified Confirmed Disposal
Site in connection with groundwater contamination.  91 Hartwell Avenue is a
122,328 square foot office building occupied by five tenants.  The Company has
engaged a specially licensed environmental consultant to perform the necessary
investigation and assessment and to prepare submittals to the state regulatory
authority.  On August 1, 1997, such consultant submitted to the state regulatory
authority a Phase I - Limited Site Investigation Report and Downgradient
Property Status Opinion.  This Opinion concluded that the Property qualifies for
Downgradient Property Status under the state regulatory program.  Downgradient
Property Status eliminates certain deadlines for conducting response actions at
a site.  Although the Company believes that the current or 

                                       23
<PAGE>
 
former owners of the upgradient source properties may ultimately be responsible
for some or all of the costs of such response actions, the Company will take any
necessary further response actions.


     The Company expects that any resolution of the environmental matters
relating to 17 Hartwell Avenue and 91 Hartwell Avenue will not have a material
impact on the financial position, results of operations or liquidity of the
Company.

     The Company is in the process of having asbestos-containing material that
is delaminating from a floor deck above a ceiling removed from an area of
approximately 5,500 square feet at 280 Park Avenue.  The Company expects that
all removal and related renovation costs (a portion of which may be reimbursable
by the tenant), should not exceed $800,000. This cost will be capitalized into
the carrying value of the property as incurred.


Year 2000

     The Company is currently working to resolve the potential impact of the
year 2000 on the processing of date-sensitive information by the Company's
computerized information systems. Based on preliminary information, costs of
addressing potential problems are not currently expected to have a material
adverse impact on the Company's financial position, results of operations or
cash flows in future periods.


Newly issued Accounting Standards

     Financial Accounting Standards Board Statement No. 129 ("FAS 129")
"Disclosure of Information about Capital Structure" is effective for financial
statements issued for periods ending after December 31, 1997.  FAS 129
establishes standards for disclosure of information about securities,
liquidation preference of preferred stock and redeemable stock.

     Financial Accounting Standards Board Statement No. 130 ("FAS 130")
"Reporting Comprehensive Income" is effective for fiscal years beginning after
December 31, 1997, although earlier application is permitted.  The Company
intends to adopt the requirements of this pronouncement in its financial
statements for the year ending December 31, 1998.  FAS 130 establishes standards
for reporting and display of comprehensive income and its components in a full
set of general-purpose financial statements.  FAS 130 requires that all
components of comprehensive income shall be reported in the financial statements
in the period in which they are recognized.  Furthermore, a total amount for
comprehensive income shall be displayed in the financial statement where the
components of other comprehensive income are reported.  The Company was not
previously required to present comprehensive income or the components thereof in
its financial statements under generally accepted accounting principles.

     Financial Accounting Standards Board Statement No. 131 ("FAS 131")
"Disclosure about Segments of an Enterprise and Related Information" is
effective for financial statements issued for periods beginning after December
15, 1997.  FAS 131 requires disclosures about segments of an enterprise and
related information regarding the different types of business activities in
which an enterprise engages and the different economic environments in which it

                                       24
<PAGE>
 
operates.

     Financial Accounting Standards Board Statement No. 132 ("FAS 132")
"Employers' Capital Disclosures about Pensions and Other Postretirement
Benefits" is effective for fiscal years beginning after December 15, 1997,
although earlier application is encouraged.  FAS 132 establishes standards
related to the disclosure requirements for pensions and other postretirement
benefits.  FAS 132 requires additional information to be disclosed regarding
changes in the benefit obligation and fair value of plan assets, as well as
eliminates other disclosures no longer considered useful.

     The Company does not believe that the implementation of FAS 129, FAS 130,
FAS 131 or FAS 132 will have a material impact on the Company's financial
statements.


Inflation

     Substantially all of the office leases provide for separate real estate tax
and operating expense escalations over a base amount.  In addition, many of the
leases provide for fixed base rent increases or indexed increases.  The Company
believes that inflationary increases may be at least partially offset by the
contractual rent increases described above.

Item 8.   Financial Statements and Supplementary Data

          See "Index to Financial Statements" on this Form 10-K.

Item 9.   Changes in and Disagreements with Accountants on Accounting and
          Financial Disclosures

          None.

                                   PART III

Item 10.  Directors and Executive Officers of the Registrant

     The information concerning Directors and Executive Officers of the
Registrant required by Item 10 shall be included in the Proxy Statement to be
filed relating to the 1998 Annual Meeting of the Registrant's Stockholders and
is incorporated herein by reference.

Item 11.  Executive Compensation

     The information concerning Executive Compensation required by Item 11 shall
be included in the Proxy Statement to be filed relating to the 1998 Annual
Meeting of the Registrant's Stockholders and is incorporated herein by
reference.

Item 12.  Security Ownership of Beneficial Owners and Management

     The information concerning Directors and Executive Officers of the
Registrant required by Item 12 shall be included in the Proxy Statement to be
filed relating to the 1998 Annual 

                                       25
<PAGE>
 
Meeting of the Registrant's Stockholders and is incorporated herein by
reference.

Item 13.  Certain Relationships and Related Transactions

     The information concerning Directors and Executive Officers of the
Registrant required by Item 13 shall be included in the Proxy Statement to be
filed relating to the 1998 Annual Meeting of the Registrant's Stockholders and
is incorporated herein by reference.

                                       26
<PAGE>
 
                                    PART IV

Item 14.  Exhibits, Financial Statement Schedule and Reports on Form 8-K
 
     (a) Financial Statements and Financial Statement Schedule
 
     See "Index to Financial Statements" on page F-1 on this Form 10-K.

     (b) Reports on Form 8-K

     A report on Form 8-K was filed on September 26, 1997 (as amended by Form 8-
K/A) which included information regarding Item 2, 5, and 7.  Included in Item 7
was pro forma information and exhibits.  The Form 8-K was filed in connection
with the Company's acquisition of 280 Park Avenue and agreement to acquire 875
Third Avenue.

     A report on Form 8-K was filed on November 6, 1997 (as amended by Form 8-
K/A) which included information regarding Item 2 and 7.  Included in Item 7 was
pro forma information and exhibits.  The Form 8-K was filed in connection with
the Company's acquisition of 100 East Pratt Street.

     A report on Form 8-K was filed on November 26, 1997 which included
information regarding Item 2, 5 and 7.  Included in Item 7 was pro forma
information and exhibits.  The Form 8-K was filed in connection with the
Company's acquisition of 875 Third Avenue.

     A report on Form 8-K was filed on December 16, 1997 which included
information regarding Item 5 and 7.  Included in Item 7 was pro forma
information.  The Form 8-K was filed in connection with the Company's agreement
to acquire the Mulligan/Griffin Portfolio.

     A report on Form 8-K was filed on January 12, 1998 which included
information regarding Item 5.  The Form 8-K was filed in connection with the
Company's press release regarding the potential acquisition of the Prudential
Center.

     A report on Form 8-K was filed on January 26, 1998 which included
information regarding Item 5.  The Form 8-K was filed in connection with the
Company's press release regarding the Company's fourth quarter earnings.

     A report on Form 8-K was filed on February 6, 1998 which included
information regarding Item 2, 5 and 7.  Included in Item 7 was pro forma 
information. The Form 8-K was filed in connection with the Company's acquisition
of Riverfront Plaza and the Mulligan/Griffin Portfolio.

                                       27

<PAGE>
 
     (c)  Exhibits
<TABLE>   
<CAPTION>
 EXHIBIT NO.                             DESCRIPTION
 -----------                             -----------
 <C>         <S>
     +1.1    --Form of U.S. Purchase Agreement
     +1.2    --Form of International Purchase Agreement
     *3.1    --Form of Amended and Restated Certificate of Incorporation of the
               Company
     *3.2    --Form of Amended and Restated Bylaws of the Company
     *4.1    --Form of Shareholder Rights Agreement dated as of June   , 1997
               between the Company and BankBoston, N.A., as Rights Agent.
     *4.2    --Form of Certificate of Designation for Series E Junior
               Participating Cumulative Preferred Stock, par value $.01 per 
               share
     *4.3    --Form of Common Stock Certificate
     +5.1    --Opinion of Goodwin, Procter & Hoar LLP regarding legality of the
               shares of the Common Stock issued
     +8.1    --Opinion of Goodwin, Procter & Hoar LLP regarding tax matters
    *10.1    --Form of Amended and Restated Agreement of Limited Partnership of
               the Operating Partnership
    *10.2    --1997 Stock Option and Incentive Plan
    *10.3    --Form of Noncompetition Agreement between the Company and
               Mortimer B. Zuckerman
    *10.4    --Form of Employment and Noncompetition Agreement between the
               Company and Edward H. Linde
    *10.5    --Form of Employment Agreement between the Company and certain
               executive officers
    *10.6    --Form of Indemnification Agreement between the Company and each
               of its directors and executive officers
    *10.7    --Omnibus Option Agreement by and among Boston Properties Limited
               Partnership (the "Operating Partnership") and the Grantors named
               therein dated as of April 9, 1997
    *10.8    --Revolving Credit Agreement with BankBoston, N.A.
    *10.9    --Form of Registration Rights Agreement among the Company and the
               persons named therein
   *10.10    --Form of Lease Agreement dated as of June  , 1997 between Edward
               H. Linde and Mortimer B. Zuckerman, as Trustees of Downtown
               Boston Properties Trust, and ZL Hotel LLC
   *10.11    --Form of Lease Agreement dated as of June  , 1997 between Edward
               H. Linde and Mortimer B. Zuckerman, as Trustees of Two Cambridge
               Center Trust, and ZL Hotel LLC
   *10.12    --Option Agreement between Boston Properties Limited Partnership
               and Square 36 Properties Limited Partnership dated April 15, 1997
   *10.13    --Form of Certificate of Incorporation of Boston Properties
               Management, Inc.
   *10.14    --Form of By-laws of Boston Properties Management, Inc.
   *10.15    --Form of Limited Liability Agreement of ZL Hotel LLC
   *10.16    --Form of Option Agreement to Acquire the Property known as Sumner
               Square
   *10.17    --Loan Modification Agreement between Lexreal Associates and
               Mitsui Seimei America Corporation relating to loan secured by 599
               Lexington Avenue
   *10.18    --Loan Modification and Extension Agreement by and between
               Southwest Market Limited Partnership, a District of Columbia
               limited partnership, Mortimer B. Zuckerman and Edward H. Linde
               and the Sumitomo Bank, Limited, for One Independence Square,
               dated as of September 26, 1994
   *10.19    --Loan Modification and Extension Agreement by and among Southwest
               Market Limited Partnership, a District of Columbia limited
               partnership, Mortimer B. Zuckerman and Edward H. Linde and the
               Sumitomo Bank, Limited, for Two Independence Square, dated as of
               September 26, 1994
   *10.20    --Construction Loan Agreement by and between the Sumitomo Bank,
               Limited and Southwest Market Limited Partnership, dated as of
               August 21, 1990
   *10.21    --Construction Loan Agreement by and between the Sumitomo Bank,
               Limited and Southwest Market Limited Partnership for Two
               Independence Square, dated as of February 22, 1991
   *10.22    --Consent and Loan Modification Agreement regarding One
               Independence Square between the Sumitomo Bank, Limited and
               Southwest Market Limited Partnership dated as of June  , 1997
   *10.23    --Consent and Loan Modification Agreement regarding Two
               Independence Square between the Sumitomo Bank, Limited and
               Southwest Market Limited Partnership dated as of June  , 1997
   *10.24    --Form of Amended and Restated Loan Agreement between Square 36
               Office Joint Venture and the Sanwa Bank Limited dated as of June
               , 1997
   *10.25    --Indemnification Agreement between Boston Properties Limited
               Partnership and Mortimer B. Zuckerman and Edward H. Linde
</TABLE>    
 
                                      28
<PAGE>
 
<TABLE>   
<CAPTION>
 EXHIBIT NO.                             DESCRIPTION
 -----------                             -----------
 <C>         <S>
    *10.26   --Compensation Agreement between the Company and Robert Selsam,
               dated as of August 10, 1995 relating to 90 Church Street
    +10.27   --Contribution Agreement dated as of September 2, 1997 by and
               among the Operating Partnership, the Company and Kenvic
               Associates.
    +10.28   --Lock-Up and Registration Rights Agreement dated November 21,
               1997 by and among the Operating Partnership, the Company and
               Kenvic Associates.
    +10.29   --Agreement dated November 21, 1997 by and between the Operating
               Partnership and Kenvic Associates.
    +10.30   --Note and Mortgage Modification and Spreader Agreement between
               John Hancock, as lender and Boston Properties Limited
               Partnership, as borrower.
  (2)10.31   --Agreement between Bankers Trust Company as seller and Boston
               Properties Limited Partnership, as purchaser, dated September 11,
               1997
  (1)10.32   --Term loan agreement between Chase Manhattan Bank, as lender and
               Boston Properties Limited Partnership, as borrower, dated
               September 11, 1997
  (1)10.33   --Interest Guarantee and Agreement between Chase Manhattan Bank,
               as lender and Boston Properties Limited Partnership, as borrower,
               dated September 11, 1997
  (1)10.34   --Net Cash Flow Shortfall Guarantee and Agreement between Chase
               Manhattan Bank, as lender and Boston Properties Limited
               Partnership, as borrower, dated September 11, 1997
  (1)10.35   --Hazardous Material Guaranty and Indemnification Agreement
               between Chase Manhattan Bank, as lender and Boston Properties
               Limited Partnership, as borrower, dated September 11, 1997
  (2)10.36   --Swap Transaction Agreement between the Chase Manhattan Bank and
               Boston Properties, Inc. dated November 4, 1997
  (3)10.37   --Amended and Restated Real Estate Purchase and Sale Contract
               Between International Business Machines Corporation, as seller,
               and Boston Properties Limited Partnership, as buyer, dated
               October 20, 1997
  (4)10.38   --First Amendment to Revolving Credit Agreement dated July 29,
               1997 by and among the Company, BankBoston, N.A., and the
               subsidiaries of the Company and lending institutions named
               therein.
  (4)10.39   --Second Amendment to Revolving Credit Agreement dated July 30,
               1997 by and among the Company, BankBoston, N.A., and the
               subsidiaries of the Company and lending institutions named
               therein.
  (4)10.40   --Third Amendment to Revolving Credit Agreement dated September
               11, 1997 by and among the Company, BankBoston N.A., and the
               subsidiaries of the Company and lending institutions named
               therein.
  (4)10.41   --Fourth Amendment to Revolving Credit Agreement dated October 31,
               1997 by and among the Company, BankBoston, N.A., and the
               subsidiaries of the Company and lending institutions named
               therein.
    +10.42   --Environmental Indemnity and Agreement made by Boston Properties
               Limited Partnership in favor of John Hancock Mutual Life
               Insurance Company.
    +10.43   --Indemnification Agreement made by Boston Properties Limited
               Partnership in favor of John Hancock Mutual Life Insurance
               Company.
    +10.44   --Consolidation, Extension and Modification Agreement dated as of
               May 11, 1988 by and between Kenvic Associates and John Hancock
               Mutual Life Insurance Company.
    +10.45   --Modification Agreement dated as of May 30, 1990 by and between
               Kenvic Associates and John Hancock Mutual Life Insurance Company.
    +10.46   --Note and Mortgage Modification Agreement dated as of July 23,
               1992 by and between Kenvic Associates and John Hancock Mutual
               Life Insurance Company.
    +10.47   --Note and Mortgage Modification and Spreader Agreement dated as
               of December 29, 1995 by and between Kenvic Associates and John
               Hancock Mutual Life Insurance Company.
    +10.48   --Contribution Agreement dated November 26, 1997 among the
               Operating Partnership, Boston Properties LLC and the contributors
               named therein.
    +10.49   --Promissory Note dated January  , 1998 between the Operating
               Partnership and Metropolitan Life Insurance Company.
    +10.50   --Deed of Trust, Security Agreement and Fixture Filing dated
               January  , 1998.
    +10.51   --Unsecured Indemnity Agreement dated January  , 1998.
     +21.1   --Schedule of Subsidiaries of the Company
      27.1   --Financial Data Schedule.
      27.2   --Financial Data Schedule.
</TABLE>    
- --------
*   Incorporated herein by reference to the Company's Registration Statement on
    Form S-11 (No. 333-25279)
+   Incorporated herein by reference to the Company's Registration Statement on
    Form S-11 (No. 333-41449)       
(1) Incorporated herein by reference to the Company's Current Report on Form 8-
    K/A filed November 14, 1997.
(2) Incorporated herein by reference to the Company's Current Report on Form 8-
    K/A-2 filed November 25, 1997.
(3) Incorporated herein by reference to the Company's Current Report on Form 8-
    K/A filed November 14, 1997.
(4) Incorporated herein by reference to the Company's Current Report on Form 8-K
    filed November 26, 1997.
 
                                      29
<PAGE>
 
                                  SIGNATURES

Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange
Act of 1934, the Registrant, Boston Properties, Inc., has duly caused this
report to be signed on its behalf by the undersigned, thereunto duly authorized.

                                       Boston Properties, Inc.
                                      
Date                                  
                                       By: /s/ David G. Gaw
                                       --------------------
March 30, 1998                         David G. Gaw
                                       Chief Financial Officer


Pursuant to the requirements of the Securities Exchange Act of 1934, this report
has been signed below by the following persons on behalf of the registrant and
in the capacities and on the dates indicated.





                                       By: /s/ Mortimer B. Zuckerman
                                       -----------------------------
March 30, 1998                         Mortimer B. Zuckerman
                                       Chairman of the Board of Directors
 
                                       By: /s/ Edward H. Linde
                                       -----------------------------
                                       Edward H. Linde
                                       President and Chief Executive Officer
 
                                       By: /s/ David G. Gaw
                                       -----------------------------
                                       David G. Gaw
                                       Chief Financial Officer
 
                                       By: /s/ Alan J. Patricof
                                       -----------------------------
                                       Alan J. Patricof
                                       Director
 
                                       By: /s/ Ivan G. Seidenberg
                                       -----------------------------
                                       Ivan G. Seidenberg
                                       Director
 
                                       By: /s/ Martin Turchin
                                       -----------------------------
                                       Martin Turchin
                                       Director

                                       30
<PAGE>
 
                 BOSTON PROPERTIES, INC. AND BOSTON PROPERTIES
                               PREDECESSOR GROUP
            INDEX TO CONSOLIDATED AND COMBINED FINANCIAL STATEMENTS


FINANCIAL STATEMENTS

     Report of Independent Accountants . . . . . . . . . . . . . . . . . . . F-2
 
     Consolidated Balance Sheet of Boston Properties, Inc. (the "Company")
          as of December 31, 1997 and Combined Balance Sheet of the
          Predecessor Group as of December 31, 1996 . . . . . . . . . . . .  F-3
 
     Consolidated Statement of Operations of the Company for the period from
          June 23, 1997 (inception of operations) to December 31, 1997
          and Combined Statements of Operations for the Predecessor Group
          for the period from January 1, 1997 to June 22, 1997 and the years
          ended December 31, 1996 and 1995 . . . . . . . . . . . . . . . . . F-4

     Consolidated Statement of Changes in Stockholders' Equity of the Company
          for the period June 23, 1997 (inception of operations) to
          December 31, 1997 and the Combined Statement of Changes
          in Owners' Equity (Deficit) of the Predecessor Group for
          the period January 1, 1997 to June 22, 1997 and the years ended
          December 31, 1996 and 1995 . . . . . . . . . . . . . . . . . . . . F-5

     Consolidated Statement of Cash Flows of the Company for the period
          June 23, 1997  (inception of operations) to December 31, 1997
          and Combined Statement of Cash Flows of the Predecessor
          Group for the period January 1, 1997 to June 22, 1997 and
          the years ended December 31, 1996 and 1995 . . . . . . . . . . . . F-6

     Notes to Consolidated and Combined Financial Statements . . . . . . . . F-7

     Financial Statement Schedule - Schedule III . . . . . . . . . . . . .  F-24
 
 
<PAGE>
 
                       REPORT OF INDEPENDENT ACCOUNTANTS

To the Board of Directors and Stockholders of
Boston Properties, Inc.

We have audited the accompanying consolidated and combined financial statements
and the financial statement schedule of Boston Properties, Inc. (the "Company")
and the Predecessor Group as listed on the index of this Form 10-K.  These
consolidated and combined financial statements and the financial statement
schedule are the responsibility of the Company's management.  Our responsibility
is to express an opinion on these financial statements and financial statement
schedule based on our audits.

We conducted our audits in accordance with generally accepted auditing
standards. Those standards require that we plan and perform the audit to obtain
reasonable assurance about whether the financial statements are free of material
misstatement. An audit includes examining, on a test basis, evidence supporting
the amounts and disclosures in the financial statements. An audit also includes
assessing the accounting principles used and significant estimates made by
management, as well as evaluating the overall financial statement presentation.
We believe that our audits provide a reasonable basis for our opinion.

In our opinion, the consolidated and combined financial statements referred to
above present fairly, in all material respects, the consolidated and combined
financial position of Boston Properties, Inc. as of December 31, 1997 and the
Predecessor Group as of December 31, 1996, and the consolidated and combined
results of operations and cash flows of the Company for the period from June 23,
1997 to December 31, 1997 and for the Predecessor Group from January 1, 1997 to
June 22, 1997, and the years ended December 31, 1996 and 1995, respectively, in
conformity with generally accepted accounting principles.  In addition, in our
opinion, the financial statement schedule referred to above, when considered in
relation to the basic financial statements taken as a whole, presents fairly, in
all material respects, the information required to be set forth therein.

                                    /s/Coopers & Lybrand L.L.P.

Boston, Massachusetts
January 23, 1998, except for
Note 16 for which the date
is February 2, 1998
<PAGE>
 
                           BOSTON PROPERTIES, INC. AND
                       BOSTON PROPERTIES PREDECESSOR GROUP
                    CONSOLIDATED AND COMBINED BALANCE SHEETS


<TABLE> 
<CAPTION> 
                                                                                                           The
                                                                                         The           Predecessor
                                                                                       Company            Group
                                                                                   ...............   ...............
                                                                                     December 31,      December 31,
                                                                                         1997              1996
                                                                                   ...............   ...............
<S>                                                                                <C>               <C> 
   ASSETS                                                                                    (in thousands)

Real estate:                                                                           $1,796,500        $1,035,571
   Less: accumulated depreciation                                                        (294,218)         (263,911)
                                                                                   ---------------   ---------------
       Total real estate                                                                1,502,282           771,660

Cash and cash equivalents                                                                  17,560             8,998
Escrows                                                                                    14,178            25,474
Tenant and other receivables, net                                                          24,458            12,049
Accrued rental income, net                                                                 55,190            49,206
Deferred charges, net                                                                      35,485            24,722
Prepaid expenses and other assets                                                          20,225             4,402
Investment in joint ventures                                                                3,143                 -
                                                                                   ---------------   ---------------
   Total assets                                                                        $1,672,521          $896,511
                                                                                   ===============   ===============    

   LIABILITIES AND STOCKHOLDERS' AND OWNERS' EQUITY (DEFICIT)

Liabilities:
   Mortgage notes payable                                                              $1,099,253        $1,420,359
   Unsecured line of credit                                                               233,000                 -
   Notes payable - affiliate                                                                    -            22,117
   Accounts payable and accrued expenses                                                   23,822            13,795
   Dividends payable                                                                       22,539                 -
   Accrued interest payable                                                                 6,581             9,667
   Other liabilities                                                                       11,642             7,205
                                                                                   ---------------   ---------------
       Total liabilities                                                                1,396,837         1,473,143
                                                                                   ---------------   ---------------

Commitments and contingencies                                                                   -                 -
                                                                                   ---------------   ---------------

Minority interest in Operating Partnership                                                100,636                 -
                                                                                   ---------------   ---------------

Stockholders' equity:
   Preferred stock, $.01 par value, 50,000,000 shares
       authorized, none issued or outstanding                                                   -                 -
   Excess stock, $.01 par value, 150,000,000 shares                          
       authorized, none issued or outstanding                                                   -                 -
   Common stock, $.01 par value, 250,000,000 shares                          
       authorized, 38,694,041 issued and outstanding                                          387                 -
   Additional paid-in capital                                                             172,347                 -
   Earnings in excess of dividends                                                          2,314                 -
Owners' deficit                                                                                 -          (576,632)
                                                                                   ---------------   ---------------
       Total stockholders' and owners' equity (deficit)                                   175,048          (576,632)
                                                                                   ---------------   ---------------
           Total liabilities and stockholders' and owners' equity (deficit)            $1,672,521          $896,511
                                                                                   ===============   ===============    
</TABLE> 





  The accompanying notes are an integral part of these financial statements.

                                      F-2
<PAGE>
 

                           BOSTON PROPERTIES, INC. AND
                       BOSTON PROPERTIES PREDECESSOR GROUP
               CONSOLIDATED AND COMBINED STATEMENTS OF OPERATIONS

<TABLE> 
<CAPTION> 

                                                                       The Company                   The Predecessor Group
                                                                    ..................   ...........................................
                                                                                                          
                                                                      June 23, 1997       January 1, 1997   Year ended December 31,
                                                                            to                  to          .......................
                                                                    December 31, 1997      June 22, 1997       1996        1995
                                                                    .................    .................  ..........  ...........
                                                                               (in thousands, except for per share data)
                                                                    ...............................................................
<S>                                                                 <C>                  <C>                <C>         <C>   
REVENUE
     Rental:
          Base rent                                                          $126,401            $80,122     $169,420     $155,614
          Recoveries from tenants                                              12,564             10,283       22,607       21,124
          Parking and other                                                       676              3,397        2,979        2,527
                                                                    ------------------   ----------------   ----------  -----------
             Total rental revenue                                             139,641             93,802      195,006      179,265
     Hotel operating                                                                -             31,185       65,678       61,320
     Development and management services                                        3,813              3,685        5,719        4,444
     Interest and other                                                         2,189              1,146        3,530        3,696
                                                                    ------------------   ----------------   ----------  -----------
             Total revenue                                                    145,643            129,818      269,933      248,725
                                                                    ------------------   ----------------   ----------  -----------

EXPENSES
     Rental:
          Operating                                                            19,591             13,650       29,823       27,142
          Real estate taxes                                                    20,502             13,382       28,372       28,279
     Hotel:
          Operating                                                                 -             20,938       43,634       41,501
          Real estate taxes                                                         -              1,514        3,100        2,517
     General and administrative                                                 6,689              5,116       10,754       10,372
     Interest                                                                  38,264             53,324      109,394      108,793
     Depreciation and amortization                                             21,719             17,054       36,199       33,828
                                                                    ------------------   ----------------   ----------  -----------
             Total expenses                                                   106,765            124,978      261,276      252,432
                                                                    ------------------   ----------------   ----------  -----------
Income (loss) before minority interests and extraordinary items                38,878              4,840        8,657       (3,707)
Minority interest in property partnerships                                       (215)              (235)        (384)        (276)
                                                                    ------------------   ----------------   ----------  -----------
Income (loss) before minority interest in Operating Partnership
     and extraordinary items                                                   38,663              4,605        8,273       (3,983)
Minority interest in Operating Partnership                                    (11,437)                 -            -            -
                                                                    ------------------   ----------------   ----------  -----------
Income (loss) before extraordinary items                                       27,226              4,605        8,273       (3,983)
Extraordinary gains (losses) on early debt extinguishments,
     net of minority interest                                                   7,925                  -         (994)           -
                                                                    ------------------   ----------------   ----------  -----------
Net income (loss)                                                             $35,151             $4,605       $7,279      ($3,983)
                                                                    ==================   ================   ==========  ===========

Basic earnings per share:
     Income before extraordinary items                                          $0.70                  -            -            -
     Extraordinary items                                                         0.21
                                                                    ------------------
     Net income                                                                 $0.91                  -            -            -
                                                                    ==================

Diluted earnings per share:
     Income before extraordinary items                                          $0.70                  -            -            -
     Extraordinary items                                                         0.20
                                                                    ------------------
     Net income                                                                 $0.90                  -            -            -
                                                                    ==================
</TABLE> 


   The accompanying notes are an integral part of these financial statements.

                                       F-3
<PAGE>
 
                           BOSTON PROPERTIES, INC. AND
                       BOSTON PROPERTIES PREDECESSOR GROUP
              CONSOLIDATED AND COMBINED STATEMENTS OF STOCKHOLDERS'
                          AND OWNERS' EQUITY (DEFICIT)
                             (dollars in thousands)
<TABLE> 
<CAPTION> 
                                                              Common Stock        Additional  Earnings in    Owners'
                                                              ------------          Paid-in    excess of     Equity
                                                            Shares     Amount       Capital    Dividends    (Deficit)     Total
                                                            ------     ------       -------    ---------    ---------     -----
<S>                                                         <C>        <C>          <C>        <C>          <C>          <C> 
The Predecessor Company:
  Balance, January 1, 1995                                                                                  ($502,230)   ($502,230)
      Contributions                                                                                            44,661       44,661
      Net loss                                                                                                 (3,983)      (3,983)
      Distributions                                                                                           (45,101)     (45,101)
                                                                                                              --------     --------
  Balance, December 31, 1995                                                                                 (506,653)    (506,653)
      Contributions                                                                                            33,279       33,279
      Net income                                                                                                7,279        7,279
      Distributions and conversion of equity to                                                                     -            -
       note  payable - affiliate                                                                             (110,537)    (110,537)
                                                                                                             ---------    ---------
  Balance, December 31, 1996                                                                                 (576,632)    (576,632)
      Contributions                                                                                             9,330        9,330
      Net income for period January 1, 1997                       
       through June 22, 1997                                                                                    4,605        4,605
      Distributions                                                                                           (32,125)     (32,125)
                                                                                                              --------     --------
  Balance contributed at June 22, 1997                                                                       (594,822)    (594,822)
The Company:
  Reclassification adjustment                                                     ($594,822)                  594,822            -
  Sale of Common Stock net of Offering costs                 38,694       $387      838,822                         -      839,209
  Allocation of minority interest in Operating             
     Partnership                                                             -      (71,669)                        -      (71,669)
  Stock issued in connection with property acquisition                       -           16                         -           16
  Net income, June 23, 1997 to December 31, 1997                             -            -     $35,151             -       35,151
  Dividends declared                                                         -            -     (32,837)            -      (32,837)
                                                                          ----     --------      ------       -------     --------
  Stockholders' Equity, December 31, 1997                    38,694       $387     $172,347      $2,314            $0     $175,048
                                                             ======       ====     ========      ======       =======     ========
</TABLE> 

The accompanying notes are an integral part of these financial statements.

                                       F-4
<PAGE>
 
                           BOSTON PROPERTIES, INC. AND
                       BOSTON PROPERTIES PREDECESSOR GROUP
               CONSOLIDATED AND COMBINED STATEMENTS OF CASH FLOWS

<TABLE> 
<CAPTION> 
                                                                                    The Company      The Predecessor Group
                                                                                 .................   .....................
                                                                                  June 23, 1997 to    January 1, 1997 to      
                                                                                 December 31, 1997      June 22, 1997         
                                                                                 .................   .....................
                                                                                               (in thousands)
<S>                                                                              <C>                 <C> 
Cash flows from operating activities:
    Net income (loss)                                                                    $35,151               $4,605
Adjustments to reconcile net income (loss) to net cash provided by
    operating activities:
    Depreciation and amortization                                                         21,719               17,054     
    Non-cash portion of interest expense                                                     547                1,497     
    Extraordinary gain on early debt extinguishments                                     (11,216)                   -     
    Minority interest in Operating Partnership                                             7,659                    -     
    Change in assets and liabilities:
       Tenant and other receivables                                                       (5,295)              (7,114)    
       Prepaid expenses and other assets                                                 (14,330)              (1,494)    
       Escrows                                                                              (874)                   -     
       Accrued rental income                                                              (5,694)                (291)    
       Accounts payable and accrued expenses                                               5,611                5,220     
       Accrued interest payable                                                           (5,107)               2,021     
       Other liabilities                                                                   5,672                3,728     
                                                                                 ----------------     ----------------    
    
          Total adjustments                                                               (1,308)              20,621     
                                                                                 ----------------     ----------------    
    
          Net cash provided by operating activities                                       33,843               25,226     
                                                                                 ----------------     ----------------    

Cash flows from investing activities:
    Acquisitions/additions to real estate                                               (526,890)             (27,721)    
    Tenant leasing costs                                                                  (2,793)              (2,550)    
    Escrows                                                                                    -                    -     
    Change in accounts payable                                                                 -                    -     
    Investment in joint ventures                                                            (570)              (2,573)    
    Cash from contributed assets                                                          10,510                    -     
                                                                                 ----------------     ----------------    

          Net cash used in investing activities                                         (519,743)             (32,844)    
                                                                                 ----------------     ----------------    

Cash flows from financing activities:
    Net proceeds from sale of common stock                                               839,209                    -     
    Owners' contributions                                                                      -                9,330     
    Owners' distributions                                                                      -              (32,125)    
    Borrowings on Unsecured Line of Credit                                               233,000                    -     
    Proceeds from long term debt                                                         220,000                    -     
    Proceeds (payments) from notes payable                                                     -                    -     
    Repayments on mortgage notes                                                        (703,826)              (3,799)    
    Accounts receivable - affiliates                                                           -                 (804)    
    Accounts payable - affiliates                                                        (19,983)              19,983     
    Dividends paid                                                                       (17,026)                   -     
    Escrows                                                                               12,303                 (136)    
    Costs related to debt extinguishments                                                 (8,512)                   -     
    Proceeds (repayments) from notes payable - affiliate                                 (38,833)              16,716     
    Payment of deferred financing and other costs                                        (12,872)                 (35)    
                                                                                 ----------------     ----------------    

          Net cash provided (used) by financing activities                               503,460                9,130     
                                                                                 ----------------     ----------------    

Net increase (decrease) in cash                                                           17,560                1,512     
Cash and cash equivalents, beginning of period                                                 -                8,998     
                                                                                 ----------------     ----------------    
Cash and cash equivalents, end of period                                                 $17,560              $10,510     
                                                                                 ================     ================ 

Supplemental disclosures:
    Cash paid for interest                                                               $36,783              $50,917     
                                                                                 ================     ================ 
    Interest capitalized                                                                  $1,168               $1,111     
                                                                                 ================     ================ 

Non-cash activities:
   Investing activities:
    Mortgage note payable assumed in connection with acquisition                        $180,000
                                                                                 ================
    Issuance of Operating Partnership Units in connection with acquisition               $28,000
                                                                                 ================
    Issuance of common stock related to acquisition                                          $16
                                                                                 ================
   Financing activities:
    Dividends declared                                                                   $22,539
                                                                                 ================
    Net liabilities assumed in connection with contribution of properties               $592,452
                                                                                 ================
    Reallocation of additional paid-in capital to minority interest in
       Operating Partnership                                                            $666,507
                                                                                 ================
    Conversion of owners' equity to notes payable - affiliate 
                                                                 

<CAPTION> 
                                                                                         The Predecessor Group
                                                                                 .....................................
                                                                                        Year ended December 31,
                                                                                 .....................................
                                                                                      1996                  1995
                                                                                 .....................................
                                                                                             (in thousands)
<S>                                                                              <C>                  <C> 
Cash flows from operating activities:
    Net income (loss)                                                                     $7,279              ($3,983)
Adjustments to reconcile net income (loss) to net cash provided by
    operating activities:
    Depreciation and amortization                                                         36,199               33,828
    Non-cash portion of interest expense                                                     644                1,347
    Extraordinary gain on early debt extinguishments                                           -                    -
    Minority interest in Operating Partnership                                                 -                    -
    Change in assets and liabilities:
       Tenant and other receivables                                                        2,313               (1,049)
       Prepaid expenses and other assets                                                   2,777                 (360)
       Escrows                                                                            (1,033)                 692
       Accrued rental income                                                                 475                 (360)
       Accounts payable and accrued expenses                                              (1,673)              (2,219)
       Accrued interest payable                                                              579                1,667
       Other liabilities                                                                   3,971                 (471)
                                                                                 ----------------     ----------------

          Total adjustments                                                               44,252               33,075
                                                                                 ----------------     ----------------

          Net cash provided by operating activities                                       51,531               29,092
                                                                                 ----------------     ----------------

Cash flows from investing activities:
    Acquisitions/additions to real estate                                                (30,238)             (33,960)
    Tenant leasing costs                                                                  (4,077)              (3,191)
    Escrows                                                                                9,525                  307
    Change in accounts payable                                                             1,101                    -
    Investment in joint ventures                                                               -                    -
    Cash from contributed assets                                                               -                    -
                                                                                 ----------------     ----------------

          Net cash used in investing activities                                          (23,689)             (36,844)
                                                                                 ----------------     ----------------

Cash flows from financing activities:
    Net proceeds from sale of common stock                                                     -                    -
    Owners' contributions                                                                 33,279               44,661
    Owners' distributions                                                               (105,619)             (45,101)
    Borrowings on Unsecured Line of Credit                                                     -                    -
    Proceeds from long term debt                                                         117,269                1,200
    Proceeds (payments) from notes payable                                                11,933                  171
    Repayments on mortgage notes                                                         (93,695)             (14,641)
    Accounts receivable - affiliates                                                           -                    -
    Accounts payable - affiliates                                                              -                    -
    Dividends paid                                                                             -                    -
    Escrows                                                                               (6,250)                   -
    Costs related to debt extinguishments                                                      -                    -
    Proceeds (repayments) from notes payable - affiliate                                       -                    -
    Payment of deferred financing and other costs                                         (1,628)               1,040
                                                                                 ----------------     ----------------

          Net cash provided (used) by financing activities                               (44,711)             (12,670)
                                                                                 ----------------     ----------------

Net increase (decrease) in cash                                                          (16,869)             (20,422)
Cash and cash equivalents, beginning of period                                            25,867               46,289
                                                                                 ----------------     ----------------
Cash and cash equivalents, end of period                                                  $8,998              $25,867
                                                                                 ================     ================ 

Supplemental disclosures:
    Cash paid for interest                                                              $107,700             $108,618
                                                                                 ================     ================ 
    Interest capitalized                                                                    $366               $1,543
                                                                                 ================     ================ 

Non-cash activities:
   Investing activities:
    Mortgage note payable assumed in connection with acquisition               
    Issuance of Operating Partnership Units in connection with acquisition     
    Issuance of common stock related to acquisition                            
   Financing activities:
    Dividends declared                                                         
    Net liabilities assumed in connection with contribution of properties      
    Reallocation of additional paid-in capital to minority interest in
       Operating Partnership                                                 
    Conversion of owners' equity to notes payable - affiliate                             $4,918
                                                                                 ================     
</TABLE> 


  The accompanying notes are an integral part of these financial statements.

                                      F-5
<PAGE>
 
                 BOSTON PROPERTIES, INC. AND BOSTON PROPERTIES
                               PREDECESSOR GROUP

            NOTES TO CONSOLIDATED AND COMBINED FINANCIAL STATEMENTS
                 (dollars in thousands, except per share data)

1.  Organization and Basis of Presentation

       Organization
       Boston Properties, Inc. (the "Company") was formed under the laws of the
State of Delaware on June 23, 1997, to be a self-administered and self-managed
real estate investment trust ("REIT").  The Company is the sole general partner
of Boston Properties Limited Partnership (the "Operating Partnership") and at
December 31, 1997, owned an  approximately 69.53% limited and general
partnership interest in the Operating Partnership.

       The Company has been formed to succeed to substantially all of the
interests of Boston Properties Inc. and its affiliates  (the "Predecessor") in
(i) a portfolio of office, industrial and hotel properties and (ii) the national
acquisition, property management, leasing, development and construction
businesses of the Predecessor and its affiliates.  The acquisition, property
management, leasing, development and construction businesses are being carried
out by the Operating Partnership and the Company's majority-owned affiliate,
Boston Properties Management, Inc. (the "Development and Management Company").

       On June 23, 1997, the Company commenced operations after completing an
initial public offering (the "Initial Offering") of 31,400,000 shares of common
stock. The Company issued an additional 4,710,000 shares of common stock
pursuant to the exercise of the underwriters' over-allotment option. The
combined 36,110,000 shares of common stock were issued at a price of $25.00 per
share, generating gross proceeds of $902.8 million. The proceeds to the Company,
net of underwriters' discount and offering costs were approximately $839.2
million. Upon completion of the Initial Offering, the Company contributed
substantially all of the net proceeds of the Initial Offering in exchange for an
approximately 70.66% interest in the Operating Partnership.

       Upon completion of the Initial Offering, the Operating Partnership
entered into participating leases with ZL Hotel LLC, an affiliate. Accordingly,
in order to maintain its qualification as a REIT, the participating leases
provide the Company with revenue which qualifies as rental income under the REIT
requirements. Marriott International, Inc. manages the Company's two hotel
properties under the Marriott/(R)/ name.

       Properties
       At December 31, 1997, the Company owned 82 commercial real estate
properties, consisting of 69 office properties containing approximately 10.9
million (including five office properties under development containing
approximately 1.1 million square feet), nine industrial properties containing
approximately 926,100 net rentable square feet, three hotel properties with
1,054 rooms totaling approximately 938,000 square feet (including one hotel
currently under development which will contain 221 rooms and approximately
187,000 square feet), and one 

                                      F-6
<PAGE>
 
                 BOSTON PROPERTIES, INC. AND BOSTON PROPERTIES
                               PREDECESSOR GROUP

            NOTES TO CONSOLIDATED AND COMBINED FINANCIAL STATEMENTS
                 (dollars in thousands, except per share data)

garage property containing 1,170 spaces and approximately 332,000 square feet.
In addition, the Company owns six parcels of land totaling 39.0 acres (which
will support approximately 629,000 square feet of development) and structured
parking for 4,735 vehicles containing approximately 1,614,000 square feet.

       Basis of Presentation
       The accompanying combined financial statements comprise interests in
properties and the third party commercial real estate development, project
management and property management business of the Predecessor at December 31,
1996. The accounts are presented on a combined basis because of the affiliates,
general partners and common management which control the business operations of
each entity.

       The business combination was structured as an exchange of properties or
partnership interests by the Predecessor for limited partnership interests in
the Operating Partnership, which holds the operating assets of the Company.  The
Operating Partnership holds all of the assets of the Predecessor entities as a
result of the business combination.  Due to the affiliation of the Predecessor,
the business combination was accounted for as a reorganization of entities under
common control which is similar to the accounting used for a pooling of
interests.

       The Company's accompanying consolidated financial statements include the
consolidated financial position of the Operating Partnership, its subsidiaries,
and interests in properties of which the Company had control as of December 31,
1997, and its consolidated results of operations and cash flows for the period
from June 23, 1997 to December 31, 1997.
 
       All significant intercompany transactions have been eliminated in the
combined and consolidated financial statements.
 
2.  Summary of Significant Accounting Policies

Real Estate

       Real estate is stated at depreciated cost. In accordance with Statement
of Financial Accounting Standard No. 121, "Accounting for the Impairment of 
Long-Lived Assets and for Long-Lived Assets to be Disposed of," impairment
losses are recorded on long-lived assets used in operation, when events and
circumstances indicate that the assets might be impaired and the estimated
undiscounted cash flows to be generated by those assets are less than the
carrying amount of those assets. The Company periodically reviews its properties
to determine if its carrying costs will be recovered from future operating cash
flows. Upon determination that an impairment has occurred, those assets shall be
reduced to fair value. No such impairment losses

                                      F-7
<PAGE>
 
                 BOSTON PROPERTIES, INC. AND BOSTON PROPERTIES
                               PREDECESSOR GROUP

            NOTES TO CONSOLIDATED AND COMBINED FINANCIAL STATEMENTS
                 (dollars in thousands, except per share data)

have been recognized to date.

       The cost of buildings and improvements includes the purchase price of
property, legal fees and acquisition costs.  The cost of buildings under
development includes the capitalization of interest, property taxes and other
costs incurred during the period of development.

       Depreciation is computed on the straight-line basis over the estimated
useful lives of the assets as follows:

          Land improvements                   25 to 40 years
          Building costs                      10 to 40 years
          Tenant improvements                 Terms of related lease
          Furniture, fixtures, and equipment  5 to 7 years

       Depreciation expense for corporate furniture, fixtures, and equipment and
corporate occupied real property was $548, $556 and $588 for the years ended
December 31, 1997, 1996 and 1995, respectively.

       Expenditures for repairs and maintenance are charged to operations as
incurred. Significant betterments are capitalized.

       When assets are sold or retired, their costs and related accumulated
depreciation are removed from the accounts with the resulting gains or losses
reflected in net income or loss for the period.

Cash and cash equivalents

       Cash and cash equivalents consist of cash on hand and investments with
maturities of three months or less from the date of purchase.  The majority of
the Company's cash and cash equivalents are held at major commercial banks.  The
Company has not experienced any losses to date on its invested cash.

Escrows

       Escrows include amounts established pursuant to various agreements for
security deposits, property taxes, insurance and other costs.

                                      F-8
<PAGE>
 
                 BOSTON PROPERTIES, INC. AND BOSTON PROPERTIES
                               PREDECESSOR GROUP

            NOTES TO CONSOLIDATED AND COMBINED FINANCIAL STATEMENTS
                 (dollars in thousands, except per share data)


Revenue Recognition

       Base rental revenue is reported on a straight-line basis over the terms
of the respective leases. The impact of the straight-line rent adjustment
increased revenues by $5,985, decreased revenues by $475, and increased revenues
by $360 for the years ended December 31, 1997, 1996 and 1995, respectively.
Property operating cost reimbursements due from tenants for common area
maintenance, real estate taxes and other recoverable costs are recognized in the
period the expenses are incurred.

       Accrued rental income represents rental income earned in excess of rent
payments received pursuant to the terms of the individual lease agreements, net
of an allowance for doubtful accounts.

       Fees received for lease terminations are deferred and amortized to income
using the straight-line method over the remaining original lease term until the
space is subsequently leased.

       Development fees are recognized ratably over the period of development.
Management fees are recognized as revenue as they are earned.

Deferred Charges

       Deferred charges include leasing costs and financing fees. Fees and costs
incurred in the successful negotiation of leases, including brokerage, legal and
other costs have been deferred and are being amortized on a straight-line basis
over the terms of the respective leases. Fees and costs incurred to obtain long-
term financing have been deferred and are being amortized over the terms of the
respective loans on a basis which approximates the effective interest method.

Offering Costs

       Underwriting commissions and offering costs incurred in connection with
the Initial Offering have been reflected as a reduction of additional paid-in
capital.

Income Taxes

       The Company has elected to be taxed as a REIT under Sections 856 through
860 of the Internal Revenue Code of 1986, as amended (the "Code"), commencing
with its taxable year ended December 31, 1997.  As a result, the Company
generally will not be subject to federal corporate income tax on its taxable
income that is distributed to its shareholders.  A REIT is subject to a number
of organizational and operational requirements, including a requirement that 

                                      F-9
<PAGE>
 
                 BOSTON PROPERTIES, INC. AND BOSTON PROPERTIES
                               PREDECESSOR GROUP

            NOTES TO CONSOLIDATED AND COMBINED FINANCIAL STATEMENTS
                 (dollars in thousands, except per share data)

it currently distribute at least 95% of its annual taxable income. Accordingly,
no provision has been made for federal income taxes in the accompanying
consolidated financial statements.

       The net difference between the tax basis and the reported amounts of the
Company's assets and liabilities is approximately $149,000.

       The Predecessor was not a legal entity subject to income taxes. No
federal or state income taxes were applicable to the entities that managed and
owned the properties; accordingly, no provision has been made for federal income
taxes in the accompanying combined financial statements.

       Certain entities included in the Company's consolidated financial
statements and the Predecessor's combined financial statements are subject to
District of Columbia franchise taxes. Franchise taxes are recorded as rental
operating expenses in the accompanying combined financial statements.

Investment in Joint Ventures

       The investment in joint ventures represents (i) a 25% interest in an
entity which owns two office buildings in Reston, VA and (ii) a 25% interest in
an entity which owns one office building in Reston, VA. The Company also serves
as development manager for both joint ventures. These investments are accounted
for under the equity method.

Interest Expense

       Interest expense on fixed rate debt with periodic rate increases is
computed using the effective interest method over the terms of the respective
loans.

Minority Interests

       Minority interest in the Operating Partnership represents the limited
partners' proportionate share of the equity in the Operating Partnership.
Income is allocated to minority interest based on the weighted-average
percentage ownership through the year.

       Minority interest in property partnerships represents the limited
partners' proportionate share of the equity in partnerships, of which the
Company a 35.7% controlling general partnership interest in eleven properties
located in South San Francisco, CA. The Operating Partnership has a majority
ownership interest and the equity accounts described above are consolidated into
the Operating Partnership.

                                     F-10
<PAGE>
 
                 BOSTON PROPERTIES, INC. AND BOSTON PROPERTIES
                               PREDECESSOR GROUP

            NOTES TO CONSOLIDATED AND COMBINED FINANCIAL STATEMENTS
                 (dollars in thousands, except per share data)

Concentrations of Credit Risk

       Management of the Company performs ongoing credit evaluations of the
tenants and may require tenants to provide some form of credit support such as
corporate guarantees.  Although the Company's properties are geographically
diverse and the tenants operate in a variety of industries, to the extent the
Company has a significant concentration of rental revenues from any single
tenant, the inability of that tenant to make its lease payments could have an
adverse effect on the Company.  As of December 31, 1997, the Company's largest
tenant (The U.S. Government General Services Administration which has six leases
in six different buildings) accounted for approximately 13.3% of the Company's
total rental income.

Use of Estimates in the Preparation of Financial Statements

       The preparation of financial statements in conformity with generally
accepted accounting principles requires management to make estimates and
assumptions that affect the reported amounts of assets and liabilities and
disclosure of contingent assets and liabilities at the date of the financial
statements and the reported amounts of revenues and expenses during the
reporting period.  Actual results could differ from those estimates.

Fair Value of Financial Instruments

       The carrying values of cash and cash equivalents, escrows, receivables,
accounts payable, accrued expenses and other assets and liabilities are
reasonable estimates of their fair values because of the short maturities of
these instruments.  Mortgage notes payable have aggregate carrying values which
approximate their estimated fair values based upon the remaining maturities for
certain debt and interest rates for debt with similar terms and remaining
maturities. The fair value of these financial instruments were not materially
different from their carrying or contract values.

Partners' Capital Contributions, Distributions and Profits and Losses

       Partners' capital contributions, distributions and profits and losses are
allocated in accordance with the terms of individual partnership agreements.

Dividends

       Earnings and profits, which will determine the taxability of dividends to
shareholders, will differ from income reported for financial reporting purposes
due to the differences for federal income tax purposes primarily in the
estimated useful lives used to compute depreciation. Dividends declared in 1997
represent approximately 59% ordinary income for federal income tax purposes for
the period from June 23, 1997 to December 31, 1997.

                                     F-11
<PAGE>
 
                 BOSTON PROPERTIES, INC. AND BOSTON PROPERTIES
                               PREDECESSOR GROUP

            NOTES TO CONSOLIDATED AND COMBINED FINANCIAL STATEMENTS
                 (dollars in thousands, except per share data)

Earnings Per Share

       During 1997, the Company adopted Statement of Financial Accounting
Standards No. 128 ("SFAS 128") which provides standards for calculating earnings
per share ("EPS").  Basic EPS is computed by dividing net income by the weighted
average number of common shares outstanding during the year.  Diluted EPS
reflects the potential dilution that could occur from common shares issuable
through stock-based compensation including stock options.

Stock-Based Compensation

       During 1997, the Company adopted Statement of Financial Accounting
Standard No. 123 ("SFAS 123") which provides companies an alternative to
accounting for stock-based compensation as prescribed under Accounting
Principles Board Opinion No. 25 ("APB 25"). SFAS 123 encourages, but does not
require companies to recognize expense for stock-based awards based on their
fair value at date of grant. SFAS 123 allows companies to follow existing
accounting rules (intrinsic value method under APB 25) provided that pro-forma
disclosures are made of what net income and earnings per share would have been
had the new fair value method been used. The Company has elected to adopt the
disclosure requirements of SFAS 123, but will continue to account for stock-
based compensation under APB 25.

3.     Real Estate

      Real estate consisted of the following at December 31,:

                                                      1997             1996
                                                      ----             ----
               Land                               $  403,022      $  169,424
               Building and improvements           1,223,892         702,720
               Tenant improvements                   118,374         107,808
               Furniture and fixtures                 33,638          34,034
               Development in progress                17,574          21,585
                                                  ----------      ----------
                Total                              1,796,500       1,035,571
               Less: Accumulated depreciation       (294,218)       (263,911)
                                                  ----------      ----------
                                                  $1,502,282      $  771,660
                                                  ==========      ==========
 
4.     Deferred Charges
 
       Deferred charges consisted of the following at December 31, :

                                                     1997           1996
                                                     ----           ----
               Leasing costs                      $   46,769     $   48,167
               Financing costs                        29,271         29,182
                                                  ----------     ----------
                                                      76,040         77,349
                Less: Accumulated amortization       (40,555)       (52,627)
                                                  ----------     ----------
                                                  $   35,485     $   24,722
                                                  ==========     ==========

                                      F-12
<PAGE>
 
                BOSTON PROPERTIES, INC. AND BOSTON PROPERTIES 
                               PREDECESSOR GROUP

      NOTES TO CONSOLIDATED AND COMBINED FINANCIAL STATEMENTS, continued
                 (dollars in thousands, except per share data)

5.   Mortgage Notes Payable
 
     Mortgage notes payable comprise 14 and 44 loans at December 31, 1997 and
1996, respectively, each collateralized by a building and related land included
in real estate assets.  The mortgage notes payable are generally due in monthly
installments and mature at various dates through December 10, 2008.  Interest
rates on fixed rate mortgage notes payable aggregating approximately $1,082,000
and $1,013,000 at December 31, 1997 and 1996, respectively, range from 6.70% to
8.59% (averaging 7.55% and 8.18% at December 31, 1997 and 1996, respectively).
Interest expense on variable rate mortgage notes payable was approximately
$11,600 and $385,985 at December 31, 1997 and 1996, respectively, with rates
ranging from 1.0% above the London Interbank Offered Rate ("LIBOR") (5.9% and
5.6% at December 31, 1997 and 1996, respectively) to 1.5% above the LIBOR rate.

     The interest rates related to the mortgage notes payable for two properties
aggregating approximately $198,781 at December 31, 1997 and for three properties
aggregating $610,782 at December 31, 1996 are subject to periodic scheduled rate
increases.  Interest expense for these mortgage notes payable is computed using
the effective interest method.  Additionally, a mortgage note payable in the
amount of $185,618 for one property has been accounted for at fair value at
December 31, 1997.  The impact of using these methods increased interest expense
$547, $1,347 and $3,131 for the years ended December 31, 1997, 1996 and 1995
respectively. The cumulative liability related to these adjustments is $6,430
and $21,013 at December 31, 1997 and 1996, respectively, and is included in
mortgage notes payable.

     Combined aggregate principal payments of mortgage notes payable at 
December 31, 1997 are as follows:

     1998                $  8,995
     1999                   4,559
     2000                  48,853
     2001                 131,169
     2002                 389,474

     Certain mortgage indebtedness aggregating approximately $707.1 million was
repaid in conjunction with the Initial Offering.  These repayments, along with
the payment of certain related prepayment penalties, the write-off of the
related previously capitalized deferred financing costs and the extinguishment
of the excess of the mortgage note payable balance over the principal payment
necessitated by this increasing rate loan being accounted for using the
effective interest method, generated a gain of approximately $7.9 million (net
of minority interest share of approximately $3.3 million), which has been
reflected as an extraordinary gain in the financial statements.

                                     F-13
<PAGE>
 
                 BOSTON PROPERTIES, INC. AND BOSTON PROPERTIES
                               PREDECESSOR GROUP

      NOTES TO CONSOLIDATED AND COMBINED FINANCIAL STATEMENTS, continued
                 (dollars in thousands, except per share data)

6.   Unsecured Line of Credit

     On June 23, 1997 the Company entered into an agreement for a three year,
$300,000 unsecured  revolving credit facility (the "Unsecured Line of Credit")
maturing in June 2000. Outstanding balances under the Unsecured Line of Credit
bear interest at a floating rate based on an increase over LIBOR equal to 
(i) 125 basis points during the period from November 21, 1997 through 
January 31, 1998, (ii) 140 basis points during the period from February 1, 1998
through April 30, 1998, and (iii) after April 30, 1998, from 90 to 110 basis
points, depending upon the Company's applicable leverage ratio, or the lender's
prime rate. The Unsecured Line of Credit requires monthly payments of interest
only.

     The outstanding balance of the Unsecured Line of Credit at December 31,
1997 was $233,000.  The weighted average balance outstanding during the period
from June 23, 1997 through December 31, 1997 was approximately $117,000.  The
weighted average interest rate on amounts outstanding during the period from
June 23, 1997 through December 31, 1997 was approximately 6.82%.  The applicable
interest rate under the Unsecured Line of Credit at December 31, 1997 was 7.13%.

     The Company's ability to borrow under the Unsecured Line of Credit is
subject to the Company's ongoing compliance with a number of financial and other
covenants, including, but not limited to, maintaining a certain ratio of secured
indebtedness to total asset value, as defined.

7.   Leasing Activity

     The properties are leased to tenants under net operating leases with
initial term expiration dates ranging from 1998 to 2014.  The future minimum
lease payments to be received (excluding operating expense reimbursements) by
the Company as of December 31, 1997, under non-cancelable operating leases,
which expire on various dates through 2014, are as follows:
 
     Years ending December 31,

 
     1998         $ 280,724
     1999           273,534
     2000           254,657
     2001           235,602
     2002           205,299
     Thereafter     947,775

                                     F-14
<PAGE>
 
                 BOSTON PROPERTIES, INC. AND BOSTON PROPERTIES
                               PREDECESSOR GROUP

      NOTES TO CONSOLIDATED AND COMBINED FINANCIAL STATEMENTS, continued
                 (dollars in thousands, except per share data)

     The geographic concentration of the future minimum lease payments to be
received is detailed as follows:
 
     Location
     --------
 
     Greater Boston, MA               $235,263
     Greater Washington D.C.           936,982
     Baltimore, MD                      99,070
     Midtown Manhattan, NY             920,804
     Greater San Francisco, CA           5,090
     Bucks County, PA                      382

     One tenant represented 13.3% of the Company's total rental income for the
year ended December 31, 1997.

8.   Related Party Transactions

     Rental income of $10,655, $10,455 and $10,522 has been received from an
affiliate for the years ended December 31, 1997, 1996 and 1995, respectively.

     Development fees of $985, $25 and $125 have been received from affiliates
for the years ended December 31, 1997, 1996 and 1995, respectively.

     Management fees and other income of $363, $419 and $554 have been received
from affiliates for the years ended December 31, 1997, 1996 and 1995,
respectively.

     Notes payable - affiliates consisted of amounts funded by affiliates for
office buildings which were under renovation or construction.  The notes bore
interest at the prime rate plus 1% and were due on demand.

9.   Employee Benefit Plan

     Effective January 1, 1985, the Predecessor adopted a 401(k) Savings Plan
(the "Plan") for its employees.  Under the Plan, as amended, employees as
defined, are eligible to participate in the Plan after they have completed three
months of service.  In addition, participants may elect to make an after-tax
contribution of up to 10% of their wages.  Upon formation, the Company adopted
the Plan and the terms of the Plan.

     The Plan provides that matching employer contributions are to be determined
at the discretion of the Company. The Company matches 200% of the first 2% of
pay (utilizing pay that is not in excess of $100). The cost to the Company and
the Predecessor of this matching contribution for the years ended December 31,
1997, 1996 and 1995 was $403, $359 and $319, respectively.

                                     F-15
<PAGE>
 
                 BOSTON PROPERTIES, INC. AND BOSTON PROPERTIES
                               PREDECESSOR GROUP

      NOTES TO CONSOLIDATED AND COMBINED FINANCIAL STATEMENTS, continued
                 (dollars in thousands, except per share data)

     Participants are immediately vested in their pre-tax and after-tax
contributions. Participants vest in the Company's and the Predecessor's matching
contributions and earnings thereon over a seven year period.

10.  Stock Option and Incentive Plan

     The Company has established a stock option and incentive plan for the
purpose of attracting and retaining qualified executives and rewarding them for
superior performance in achieving the Company's business goals and enhancing
stockholder value.  In conjunction with the Initial Offering, the Company
granted options with respect to 2,290,000 common shares to directors, officers
and employees.  All of such options were issued at an exercise price of $25.00
per share.  The term of each of such option is 10 years from the date of grant.
In general, one-third of each of the options granted to officers and the
chairman of the board (the "Chairman") are exercisable on each of the third,
fourth and fifth anniversary of the date of grant, respectively.

     One-third of the options granted to employees who are not officers will be
exercisable on each of the first, second and third anniversary of the date of
grant, respectively.  Other than the options granted to the Chairman, one-half
of the options granted to non-employee directors will be exercisable on each of
the first and second anniversary of the date of grant, respectively.

     The Company sponsors a share-based incentive compensation plan as described
above. The Company applies APB Opinion No. 25 ("APB 25") and related
Interpretations in accounting for its plan.  SFAS 123 was issued by the FASB in
1995 and, if fully adopted, changes the methods for recognition of cost on plans
similar to that of the Company.  Adoption of SFAS 123 is optional; however, pro
forma disclosure as if the Company adopted the cost recognition requirements
under SFAS 123 in 1997 are presented below.  The Company's compensation expense
under APB 25 was $0.

                                     F-16
<PAGE>
 
                 BOSTON PROPERTIES, INC. AND BOSTON PROPERTIES
                               PREDECESSOR GROUP

      NOTES TO CONSOLIDATED AND COMBINED FINANCIAL STATEMENTS, continued
                 (dollars in thousands, except per share data)

     A summary of the status of the Company's stock options as of December 31,
1997 and changes during the year ended December 31, 1997 are presented below:

                                                              Weighted Average
                                                 Shares        Exercise Price 
                                                 ------        -------------- 
                                                                              
         Outstanding at beginning of year               -                -
                                                                              
         Granted                                2,290,000           $25.00 
                                                                              
         Exercised                                      -                -    
                                                                              
         Canceled                                   5,900                -    
                                               ----------                     
                                                                              
         Outstanding at end of year             2,284,100            25.00    
                                               ==========                    
                                                                             
         Options exercisable at year end                -                    
                                               ==========                    
                                                                             
         Weighted average fair value of                                      
            options granted during the year         $3.81                    
                                               ==========                     

     The fair value of each share option granted is estimated on the date of
grant using the Black-Scholes option-pricing model with the following weighted-
average assumptions for grants in 1997: dividend yield of 6.20%; risk-free
interest rates for each grant of 6.26%; options with expected lives of 6 years;
and volatility of 20% for all grants.

     The following table summarizes information about stock options outstanding
at December 31, 1997:

<TABLE>
<CAPTION>
                                    Options Outstanding                         Options Exercisable
                                    -------------------                         -------------------

                                         Weighted
                       Number             Average          Weighted           Number           Weighted
     Range of       Outstanding at       Remaining         Average        Exercisable at       Average
 Exercise Prices      12/31/97       Contractual Life   Exercise Price       12/31/97       Exercise Price
 ---------------      --------       ----------------   --------------       --------       --------------
 <S>                  <C>            <C>                <C>                  <C>            <C>  
 
     $25.00           2,284,100            9.47             $25.00               -                 -
</TABLE>

     The compensation cost under SFAS 123 for the stock performance-based plan
would have been $999 in 1997.  Had compensation cost for the Company's 1997
grants for stock-based compensation plans been determined consistent with SFAS
123, the Company's net income, and net income per common share for 1997 would
approximate the pro forma amounts below:

                                        As Reported        Pro Forma
                                        -----------        ---------
     Net income                           $ 35,151          $ 34,152
     Net income per common share          $    .91          $    .88

     The effects of applying SFAS 123 in this pro forma disclosure are not
indicative of future amounts.  SFAS 123 does not apply to future anticipated
awards.

                                     F-17
<PAGE>
 
                 BOSTON PROPERTIES, INC. AND BOSTON PROPERTIES
                               PREDECESSOR GROUP

      NOTES TO CONSOLIDATED AND COMBINED FINANCIAL STATEMENTS, continued
                 (dollars in thousands, except per share data)

11.  Minority Interest in Operating Partnership

     Minority interest in the Operating Partnership relates to the portion which
is not owned by the Company and, at December 31, 1997 amounted to 30.47%.  The
weighted-average minority interest in the Operating Partnership for the period
from June 23, 1997 to December 31, 1997 was approximately 29.58%.

     In conjunction with the formation of the Company, persons contributing
interests in properties to the Operating Partnership elected to receive either
common stock or interest in the Operating Partnership ("Units").  Each Unit
may be redeemed for either one share of common stock, or, at the option of the
Company, cash equal to the fair market value of a share of common stock at the
time of redemption.  When a Unit holder redeems a Unit for a share of common
stock or cash, minority interest is decreased and the Company's investment in
the Operating Partnership is increased.  At December 31, 1997, 16,957,328 OP
Units were outstanding.

12.  Commitments and Contingencies

Legal Matters

     The Company is subject to various legal proceedings and claims that arise
in the ordinary course of business.  These matters are generally covered by
insurance.  Management believes that the final outcome of such matters will not
have a material adverse effect on the financial position, results of operations
or liquidity of the Company.

Environmental Matters

     Some of the Properties are located in urban and industrial areas where fill
or current or historical industrial uses of the areas have caused site
contamination.  With respect to all of the Properties, independent environmental
consultants have been retained in the past to conduct or update Phase I
environmental assessments (which generally do not involve invasive techniques
such as soil or ground water sampling) and asbestos surveys on all of the
Properties.  These environmental assessments have not revealed any environmental
conditions that the Company believes will have a material adverse effect on its
business, assets or results of operations, and the Company is not aware of any
other environmental condition with respect to any of the Properties which the
Company believes would have such a material adverse effect.

     With respect to the property located at 17 Hartwell Avenue in Lexington,
Massachusetts, the Company received a Notice of Potential Responsibility ("NOR")
from the state regulatory authority on January 9, 1997, related to groundwater
contamination.  In addition, the Company received a Notice of Downgradient
Property Status Submittal from each of two third parties concerning alleged
contamination at two downgradient properties.  17 Hartwell Avenue is a 30,000
square foot office building occupied by Kendall Company, a division of Tyco
International, which has been the tenant of the entire building for 20 years.
The tenant received a similar NOR and responded to the state regulatory
authority that it would conduct an 

                                     F-18
<PAGE>
 
                 BOSTON PROPERTIES, INC. AND BOSTON PROPERTIES
                               PREDECESSOR GROUP

      NOTES TO CONSOLIDATED AND COMBINED FINANCIAL STATEMENTS, continued
                 (dollars in thousands, except per share data)

investigation. That investigation is underway and has identified the presence of
hazardous substances in a catch basin along the property line. It is expected
that the tenant will take any necessary response actions. The lease with the
tenant contains a provision pursuant to which the tenant indemnifies the Company
against such liability. The Company has notified the state regulatory authority
that it will cooperate with and monitor the tenant's investigation.

     On January 15, 1992, the property located at 91 Hartwell Avenue in
Lexington, Massachusetts was listed by the state regulatory authority as an
unclassified Confirmed Disposal Site in connection with groundwater
contamination.  91 Hartwell Avenue is a 122,328 square foot office building
occupied by five tenants.  The Company has engaged a specially licensed
environmental consultant to perform the necessary investigation and assessment
and to prepare submittals to the state regulatory authority.  On August 1, 1997,
such consultant submitted to the state regulatory authority a Phase I - Limited
Site Investigation Report and Downgradient Property Status Opinion.  This
Opinion concluded that the property qualifies for Downgradient Property Status
under the state regulatory program.  Downgradient Property Status eliminates
certain deadlines for conducting response actions at a site.  Although the
Company believes that the current or former owners of the upgradient source
properties may ultimately be responsible for some or all of the costs of such
response actions, the Company will take any necessary further response actions.

     The Company expects that any resolution of the environmental matters
relating to 17 Hartwell Avenue and 91 Hartwell Avenue will not have a material
impact on the financial position, results of operations or liquidity of the
Company.

     The Company is in the process of having asbestos-containing material that
is delaminating from a floor deck above a ceiling removed from an area of
approximately 5,500 square feet at 280 Park Avenue.  The Company expects that
all removal and related renovation costs (a portion of which may be reimbursable
by the tenant), will not exceed $800. This cost will be capitalized into the
carrying value of the building as incurred.

Development

     The Company has entered into contracts for the construction and renovation
of properties currently under development.  Commitments under these arrangements
totaled approximately $106,100 at December 31, 1997.

Management Contracts

     The two in-service hotel properties are leased to an affiliate and managed
pursuant to contracts which expire in 2012 with Marriott International, a
national hotel management company.  These agreements include base and incentive
fee provisions.  The fees under these agreements aggregated $6,996, $6,246 and
$5,540 for the years ended December 31, 1997, 1996, and 1995 respectively.

                                     F-19
<PAGE>
 
                 BOSTON PROPERTIES, INC. AND BOSTON PROPERTIES
                               PREDECESSOR GROUP

      NOTES TO CONSOLIDATED AND COMBINED FINANCIAL STATEMENTS, continued
                 (dollars in thousands, except per share data)

Sale of Property

     The Operating Partnership Agreement provides that, until June 23, 2007, the
Operating Partnership may not sell or otherwise transfer four designated
properties in a taxable transaction without the prior written consent of the
Chairman and CEO.  In connection with the acquisition or contribution of five
other Properties, the Company entered into similar agreements for the benefit of
the selling or contributing parties which specifically state the Company will
not sell or otherwise transfer the Properties in a taxable transaction until a
period ranging from June 2002 to November 2007.  The Operating Partnership is
not required to obtain the consent from a party protected thereby if such party
does not continue to hold at least a specified percentage of such party's
original Units.

     The Operating Partnership has also entered into agreements providing the
Chairman, CEO and others with the right to guarantee additional and/or
substitute indebtedness of the Company in the event that certain other
indebtedness is repaid or reduced.

13.  Earnings Per Share

     Consolidated earnings per share is computed as follows:

<TABLE> 
<CAPTION> 
                                                   For the period from June 23, 1997 to     
                                                   December 31, 1997                        
                                                                                            
                                                     Income         Shares        Per Share  
                                                   (Numerator)   (Denominator)      Amount   
                                                   -----------   -------------      ------   
<S>                                                <C>           <C>                <C> 

Basic Earnings Per Share:                                                                   
    Income available to common shareholders            $35,151          38,694       $ .91  

Effect of Dilutive Securities:                                                              
    Stock Options                                                          414        (.01) 
                                                 -----------------------------------------  
Diluted Earnings Per Share:                                                                 
    Income available to common shareholders            $35,151          39,108       $ .90  
                                                 =========================================   
</TABLE>

                                     F-20
<PAGE>
 
                 BOSTON PROPERTIES, INC. AND BOSTON PROPERTIES
                               PREDECESSOR GROUP

      NOTES TO CONSOLIDATED AND COMBINED FINANCIAL STATEMENTS, continued
                 (dollars in thousands, except per share data)

14.  Selected Interim Financial Information (unaudited)

<TABLE>
<CAPTION> 
                                             -------------------------1997-------------------------

                                              June 23, 1997       Quarter ended      Quarter ended 
                                             through June 30,         September           December 
                                                  1997                 30, 1997           31, 1997  
                                                  ----                 --------           --------  
<S>                                               <C>                  <C>             <C>         
                                                                                                   
Revenues                                         $5,363                 $62,989           $77,291     

Income before minority interest in                
   Operating Partnership                          1,520                  19,502            17,641

Income before extraordinary item                  1,074                  13,780            12,372
 
Per share income before extraordinary item          .03                     .36               .32
 
Net income                                        9,057                  13,722            12,372

Basic earnings per share                            .23                     .36               .32
</TABLE>

15.  Pro Forma Financial Information (unaudited)

     The following Pro Forma Condensed Statements of Income for the years ended
December 31, 1997 and 1996 are presented as if the Initial Offering and related
formation transactions and the property acquisitions had occurred at January 1,
1996. The pro forma information is based upon historical information and does
not purport to present what actual results would have been had such
transactions, in fact, occurred at January 1, 1996, or to project results for
any future period.

Pro Forma Condensed Statements of Income

                                                            (Unaudited)
                                                      Years ended December 31,
                                                      1997                1996  
                                                      ----                -----

Revenues                                            $320,068            $304,458

Expenses                                            $246,220            $252,130

Net income before extraordinary item                $ 55,550            $ 39,535

Basic earnings per share (before extra-
    ordinary item)                                  $   1.44            $   1.02

Diluted earnings per share (before
 extraordinary item)                                $   1.42            $   1.01
              
                                     F-21
<PAGE>
 
                 BOSTON PROPERTIES, INC. AND BOSTON PROPERTIES
                               PREDECESSOR GROUP

      NOTES TO CONSOLIDATED AND COMBINED FINANCIAL STATEMENTS, continued
                 (dollars in thousands, except per share data)

16. Subsequent Events

     On January 22, 1998, the Company acquired Riverfront Plaza for
approximately $174,400 (including closing costs).  Riverfront Plaza, a 899,720
square foot, Class A office building, is located in Richmond, Virginia.  The
acquisition was funded through a draw-down from the Unsecured Line of Credit of
$52,600, and mortgage financing of $121,800.

     On January 30, 1998, the Company completed a public offering (the
"Offering") of 23,000,000 shares of the Company's Common Stock (including
3,000,000 shares issued pursuant to the exercise of the underwriters'
overallotment options) at $35.125 per share resulting in net proceeds to the
Company of approximately $766,500.

     On January 30, 1998, the Company paid down the outstanding balance of
$300,000 on the Unsecured Line of Credit with proceeds from the Offering.

     On February 2, 1998, the Company acquired the Mulligan/Griffin Portfolio
for approximately $257,900 (including closing costs).  The Portfolio consists of
nine properties (five Class A office buildings and four R&D properties)
aggregating approximately 1.3 million square feet and six parcels of land
aggregating approximately 30.7 acres in Montgomery County, MD and Fairfax
County, VA.  The acquisition was funded through the payment of approximately
$88,500 in cash, the assumption of the fair value of mortgage debt of
approximately $118,300, the assumption of other liabilities of approximately
$1,100, and the issuance of Units valued at approximately $50,000.
 
                                     F-22
<PAGE>
 
                            BOSTON PROPERTIES INC.
                   REAL ESTATE AND ACCUMULATED DEPRECIATION
                               December 31, 1997
                            (dollars in thousands)

<TABLE> 
<CAPTION> 

                                                                                            Costs                                   
                                                                                            Capitalized   
                                                                                            Subsequent    Land          Building    
                                                        Encumbran-                          to            and           and         
Property Name              Type       Location          ces            Land      Building   Acquisition   Improvements  Improvements
- -------------              ----       --------          ----------   --------    --------   -----------   ------------   -----------
<S>                       <C>         <C>               <C>          <C>         <C>        <C>           <C>            <C> 
599 Lexington Avenue      Office      New York, NY         225,000     81,040     100,507        73,294        81,040       173,801 

280 Park Avenue           Office      New York, NY         220,000    125,288     201,115            50       125,288       201,165 

875 Third Avenue          Office      New York, NY         185,618     74,880     139,151            50        74,880       139,201 

One Cambridge Center      Office      Cambridge, MA              -        134      25,110         3,142           134        28,252 

Three Cambridge Center    Office      Cambridge, MA              -        174      12,200           631           174        12,831 

Ten Cambridge Center      Office      Cambridge, MA         40,000      1,299      12,943         4,427         1,867        16,802 

170 Tracer Lane           Office      Waltham, MA                -        398       4,601         1,289           418         5,870 

195 West Street           Office      Waltham, MA                -        758       5,150         2,977         1,611         7,274 

Waltham Office Center     Office      Waltham, MA                -        422       2,719         2,484           425         5,200 

191 Spring Street         Office      Lexington, MA         23,697      4,213      27,166        17,726         4,213        44,892 

Lexington Office Park     Office      Lexington, MA              -        998       1,426        10,119         1,072        11,471 

10&20 Burlington Mall     Office      Burlington, MA        16,613        930       6,928         8,333           939        15,252 

Newport Office Park       Office      Quincy, MA             6,754      3,500      18,208             -         3,500        18,208 

100 East Pratt Street     Office      Baltimore, MD              -     27,562     109,662            50        27,562       109,712 

Democracy Center          Office      Bethesda, MD               -     12,550      50,015        19,234        13,695        68,104 

Montvale Center           Office      Gaithersburg, MD       7,905      1,574       9,786         3,988         2,399        12,949 
                                                             -----      -----       -----         -----         -----        ------ 

     Subtotal                                             $725,587   $335,720    $726,687      $147,794      $339,217      $870,984 
                                                          --------   --------    --------      --------      --------      -------- 

<CAPTION> 
                                                                                                                               
                                                            Development                                                
                                                            and                                                              
                                                            Construction             Accumulated     Year              Depreciable 
Property Name             Type       Location               in Process      Total    Depreciation    Built/Renovated   Lives (Years)
- -------------             ----       --------               ----------     -------   ------------    ---------------   ------------
<S>                      <C>         <C>                    <C>            <C>       <C>             <C>                <C> 
599 Lexington Avenue     Office      New York, NY                -         254,841     (64,200)       1986              (1)

280 Park Avenue          Office      New York, NY                -         326,453      (1,644)       1968/95-96        (1)

875 Third Avenue         Office      New York, NY                -         214,081        (280)       1982              (1)

One Cambridge Center     Office      Cambridge, MA               -          28,386      (8,967)       1987              (1)

Three Cambridge Center   Office      Cambridge, MA               -          13,005      (3,502)       1987              (1)

Ten Cambridge Center     Office      Cambridge, MA               -          18,669      (5,603)       1990              (1)

170 Tracer Lane          Office      Waltham, MA                 -           6,288      (2,464)       1980              (1)

195 West Street          Office      Waltham, MA                 -           8,885      (1,485)       1990              (1)

Waltham Office Center    Office      Waltham, MA                 -           5,625      (2,819)       1968-70/87-88     (1)

191 Spring Street        Office      Lexington, MA               -          49,105     (10,359)       1971/95           (1)

Lexington Office Park    Office      Lexington, MA               -          12,543      (4,018)       1982              (1)

10&20 Burlington Mall    Office      Burlington, MA              -          16,191      (5,012)       1984-89/95-96     (1)

Newport Office Park      Office      Quincy, MA                  -          21,708        (227)       1988              (1)

100 East Pratt Street    Office      Baltimore, MD               -         137,274        (689)       1975/91           (1)

Democracy Center         Office      Bethesda, MD                -          81,799     (20,530)       1985-88/94-96     (1)

Montvale Center          Office      Gaithersburg, MD            -          15,348      (3,892)       1987              (1)
                                                                 -          ------     -------       

     Subtotal                                                    -      $1,210,201   $(135,691)       
                                                                 -      ----------   ---------       
</TABLE> 

                                     F-23
<PAGE>
 
                             BOSTON PROPERTIES INC.
                    REAL ESTATE AND ACCUMULATED DEPRECIATION
                                December 31, 1997
                             (dollars in thousands)

<TABLE> 
<CAPTION> 

                                                                                                      Costs              
                                                                                                      Capitalized                  
                                                                                                      Subsequent       Land    
                                                                                                      to               and
Property Name              Type       Location        Encumbrances       Land         Building        Acquisition      Improvements
- -------------              ----       --------        ------------     --------       --------        -----------      ------------ 
<S>                       <C>         <C>             <C>              <C>            <C>            <C>               <C>       
Subtotal from previous                                  $725,587       $335,720       $726,687         $147,794         $339,217    
                                                        --------       --------       --------         --------         --------    
Two Independence Square   Office      Washington DC      121,822         14,053         59,883            8,951           15,039    
One Independence Square   Office      Washington DC       77,743          9,356         33,701           17,315            9,634    
Capital Gallery           Office      Washington DC       60,029          4,725         29,560           11,916            4,725    
2300 N Street             Office      Washington DC       66,000         16,509         22,415           12,756           16,509    
US International Trade                                                                                                              
   Commission Building    Office      Washington DC            -            109         22,420            9,870            1,569    
Bedford Business Park     Office      Bedford, MA          4,617            100            631            2,525              100    
201/181 Spring Street     Office      Lexington, MA            -              -          3,637           12,363                -    
32 Hartwell Avenue        Office      Lexington, MA            -            168          1,943            2,725              168    
91 Hartwell Avenue        Office      Lexington, MA       11,322            784          6,464            2,385              784    
33 Hayden Avenue          Office      Lexington, MA            -            266          3,234               12              266    
92 Hayden Avenue          Office      Lexington, MA        9,065            230          3,145              396              230    
100 Hayden Avenue         Office      Lexington, MA            -            364          3,603              390              364    
Eleven Cambridge Center   Office      Cambridge, MA            -            121          5,535              434              121    
204 Second Avenue         Office      Waltham, MA              -             37          2,402              723               37    
R&D Building                                                                                                                        
Sugarland Building One    Office      Herndon, VA              -            735          2,739            1,606              735    
Sugarland Building Two    Office      Herndon, VA              -            834          3,216            1,883              834    
Bedford Business Park     Office      Bedford, MA         18,468            402          2,772            9,853              402    
17 Hartwell Avenue        Office      Lexington, MA            -             26            150              558               26    
Fourteen Cambridge        Office      Cambridge, MA            -            110          4,483              569              110    
                                                               -            ---          -----              ---              ---    

     Subtotal                                         $1,094,653       $384,649       $938,620         $245,024         $390,870    
                                                      ----------       --------       --------         --------         --------    

<CAPTION> 
                                                                              Development                  
                                                         Building             and                          
                                                         and                  Construction                 
Property Name              Type       Location           Improvements         in Process          Total    
- -------------              ----       --------           ------------         ----------        ----------  
<S>                       <C>         <C>                <C>                 <C>                <C>  
Subtotal from previous                                    $870,984                    -         $1,210,201  
                                                          --------                    -         ----------  
Two Independence Square   Office      Washington DC         67,848                    -             82,887  
One Independence Square   Office      Washington DC         50,738                    -             60,372  
Capital Gallery           Office      Washington DC         41,476                    -             46,201  
2300 N Street             Office      Washington DC         35,171                    -             51,680  
US International Trade                                                                                      
   Commission Building    Office      Washington DC         30,830                    -             32,399  
Bedford Business Park     Office      Bedford, MA            3,156                    -              3,256  
201/181 Spring Street     Office      Lexington, MA         11,511                4,489             16,000  
32 Hartwell Avenue        Office      Lexington, MA          4,668                    -              4,836  
91 Hartwell Avenue        Office      Lexington, MA          8,849                    -              9,633  
33 Hayden Avenue          Office      Lexington, MA          3,246                    -              3,512  
92 Hayden Avenue          Office      Lexington, MA          3,541                    -              3,771  
100 Hayden Avenue         Office      Lexington, MA          3,993                    -              4,357  
Eleven Cambridge Center   Office      Cambridge, MA          5,969                    -              6,090  
204 Second Avenue         Office      Waltham, MA            3,125                    -              3,162  
R&D Building                                                                                                
Sugarland Building One    Office      Herndon, VA            4,345                    -              5,080  
Sugarland Building Two    Office      Herndon, VA            5,099                    -              5,933  
Bedford Business Park     Office      Bedford, MA           12,625                    -             13,027  
17 Hartwell Avenue        Office      Lexington, MA            708                    -                734  
Fourteen Cambridge        Office      Cambridge, MA          5,052                    -              5,162  
                                                             -----               ------              -----  
                                                                                                
     Subtotal                                           $1,172,934               $4,489         $1,568,293  
                                                        ----------               ------         ----------  
                                                                                              
<CAPTION>                                                                                               
                                                                                                        Depre-  
                                                                                                        ciable 
                                                               Accumulated        Year                  Lives  
Property Name              Type       Location                 Depreciation       Built/Renovated      (Years)  
- -------------              ----       --------                 ------------       ---------------      -------
<S>                       <C>         <C>                      <C>                <C>                  <C> 
Subtotal from previous                                         $(135,691)                       
                                                               ----------                       
Two Independence Square   Office      Washington DC              (11,111)         1992                   (1)
One Independence Square   Office      Washington DC              (11,392)         1991                   (1)
Capital Gallery           Office      Washington DC              (15,699)         1981                   (1)
2300 N Street             Office      Washington DC               (9,942)         1986                   (1)
US International Trade                                                                                       
   Commission Building    Office      Washington DC              (12,007)         1987                   (1)  
Bedford Business Park     Office      Bedford, MA                 (1,297)         1980                   (1)
201/181 Spring Street     Office      Lexington, MA                  (48)         1997                   (1)
32 Hartwell Avenue        Office      Lexington, MA               (2,545)         1968-79/1987           (1)
91 Hartwell Avenue        Office      Lexington, MA               (2,541)         1985                   (1)
33 Hayden Avenue          Office      Lexington, MA               (1,450)         1979                   (1)
92 Hayden Avenue          Office      Lexington, MA               (1,262)         1968/1984              (1)
100 Hayden Avenue         Office      Lexington, MA               (1,424)         1985                   (1)
Eleven Cambridge Center   Office      Cambridge, MA               (2,203)         1984                   (1)
204 Second Avenue         Office      Waltham, MA                 (1,418)         1981/1993              (1)
R&D Building                                                                                           
Sugarland Building One    Office      Herndon, VA                    (88)         1987                   (1)
Sugarland Building Two    Office      Herndon, VA                   (104)         1986/97                (1)
Bedford Business Park     Office      Bedford, MA                 (5,187)         1962-78/96             (1)
17 Hartwell Avenue        Office      Lexington, MA                 (409)         1968                   (1)
Fourteen Cambridge        Office      Cambridge, MA               (1,688)         1983                   (1)
                                                                  -------                                  

     Subtotal                                                  $(217,506)                                  
                                                               ----------                                   
</TABLE> 


                                      F-24
<PAGE>
 
                             BOSTON PROPERTIES INC.
                    REAL ESTATE AND ACCUMULATED DEPRECIATION
                                December 31, 1997
                             (dollars in thousands)
<TABLE> 
<CAPTION> 

                                                                                                                     
                                                                                                 Costs             
                                                                                                 Capitalized      Land        
                                                                                                 Subsequent       and     
Property Name                Type       Location          Encumbrances    Land        Building   to Acquisition   Improvements 
- -------------                ----       --------          ------------    -----       --------   --------------   ------------
<S>                          <C>        <C>               <C>             <C>         <C>        <C>              <C> 
Subtotal from previous                                     $1,094,653     $384,649    $938,620      $245,024         $390,870     
page                                                       ----------     --------    --------      --------         --------     

164 Lexington Road          Office      Billerica, MA               -          592       1,370           132              592     

7601 Boston Boulevard,                                                                                                            
Building Eight              Office      Springfield, VA             -          200         878         3,506              378     

7500 Boston Boulevard,                                                                                                            
Building Six                Office      Springfield, VA             -          138       3,749           244              273     

7600 Boston Boulevard,                                                                                                            
   Building Nine            Office      Springfield, VA             -          127       2,839         1,415              189     

7435 Boston Boulevard,                                                                                                            
     Building One           Office      Springfield, VA             -          392       3,822         1,581              486     

8000 Grainger Court,                                                                                                              
     Building Five          Office      Springfield, VA             -          366       4,282           710              453     

7375 Boston Boulevard,                                                                                                            
     Building Ten           Office      Springfield, VA             -           23       2,685           565               47     

7700 Boston Boulevard,                                                                                                            
     Building Twelve        Office      Springfield, VA             -        1,105       1,042         7,769            1,105     

7501 Boston Boulevard,                                                                                                            
     Building Seven         Office      Springfield, VA             -          665         878        10,098              665     

8000 Corporate Court,                                                                                                             
     Building Eleven        Office      Springfield, VA             -          136       3,071            95              214     

7374 Boston Boulevard,                                                                                                            
     Building Four          Office      Springfield, VA             -          241       1,605           423              303     

7451 Boston Boulevard,                                                                                                            
     Building Two           Office      Springfield, VA             -          249       1,542         1,429              535     

Hilltop Business Center     Office      San Francisco,          4,600           53         492           208               53     
                                        CA                                                                                        

40-46 Harvard Street      Industrial    Westwood, MA                -          351       1,782         1,321              351     

25-33 Dartmouth Street    Industrial    Westwood, MA                -          273       1,596           493              273     

6201 Columbia Park                                                                                                                
    Road, Building Two    Industrial    Landover, MD                -          505       2,746           975              960     
                                                                    -          ---       -----           ---              ---     

     Subtotal                                              $1,099,253     $390,060    $972,999      $275,988         $397,747     
                                                           ----------     --------    --------      --------         --------     
</TABLE> 
<TABLE> 
<CAPTION> 

                                                                     Development                                             Depre-
                                                       Building      and                                                     ciable
                                                       and           Construction             Accumulated    Year             Lives
Property Name               Type      Location         Improvement   in Process     Total     Depreciation   Built/Renovated  (Year)
- -------------               ----      --------         -----------   ------------   -----     ------------   ---------------  ------
<S>                         <C>       <C>              <C>           <C>          <C>         <C>            <C>              <C> 
Subtotal from previous                                 $1,172,934        $4,489   $1,568,293    ($217,506)
page                                                   ----------        ------   ----------     ---------
                                    
164 Lexington Road         Office     Billerica, MA         1,502             -        2,094          (78)         1982         (1)
7601 Boston Boulevard,                                                                                                           
Building Eight             Office     Springfield, VA       4,206             -        4,584       (1,380)         1986         (1)

7500 Boston Boulevard,                                                                                                           
Building Six               Office     Springfield, VA       3,858             -        4,131       (1,278)         1985         (1)

7600 Boston Boulevard,                                                                                                           
   Building Nine           Office     Springfield, VA       4,192             -        4,381       (1,391)         1987         (1)

7435 Boston Boulevard,                                                                                                           
     Building One          Office     Springfield, VA       5,309             -        5,795       (1,783)         1982         (1)

8000 Grainger Court,                                                                                                             
     Building Five         Office     Springfield, VA       4,905             -        5,358       (1,656)         1989         (1) 

7375 Boston Boulevard,                                                                                                           
     Building Ten          Office     Springfield, VA       3,226             -        3,273         (954)         1988         (1)

7700 Boston Boulevard,                                                                                                           
     Building Twelve       Office     Springfield, VA       8,811             -        9,916          (48)         1997          (1)

7501 Boston Boulevard,                                                                                                           
     Building Seven        Office     Springfield, VA      10,976             -       11,641          (36)         1997          (1)

8000 Corporate Court,                                                                                                            
     Building Eleven       Office     Springfield, VA       3,084             4        3,302         (708)         1989          (1)

7374 Boston Boulevard,                                                                                                           
     Building Four         Office     Springfield, VA       1,966             -        2,269         (704)         1984          (1)

7451 Boston Boulevard,                                                                                                           
     Building Two          Office     Springfield, VA       2,685             -        3,220       (1,410)         1982          (1)

Hilltop Business Center    Office     San Francisco,          700             -          753         (303)         early 1970's  (1)
                                      CA                                                                                         

40-46 Harvard Street     Industrial   Westwood, MA          3,103             -        3,454       (2,468)         1967/1996     (1)

25-33 Dartmouth Street   Industrial   Westwood, MA          2,089             -        2,362       (1,231)         1966/1996     (1)

6201 Columbia Park                                                                                                               
    Road, Building Two   Industrial   Landover, MD          3,266             -        4,226       (1,311)         1986          (1)
                                                            -----             -        -----       -------   
     Subtotal                                          $1,236,812        $4,493   $1,639,052    ($234,245)   
                                                       ----------        ------   ----------    ----------   

</TABLE> 

                                     F-25
<PAGE>
 
                            BOSTON PROPERTIES INC.
                   REAL ESTATE AND ACCUMULATED DEPRECIATION
                               December 31, 1997
                            (dollars in thousands)

<TABLE> 
<CAPTION> 

                                                                                                       Costs                     
                                                                                                       Capitalized                  
                                                                                                       Subsequent     Land      
                                                                                                       to             and       
Property Name                     Type       Location         Encumbrances     Land         Building   Acquisition    Improvements  
- -------------                     ----       --------         ------------   --------       --------   -----------    ------------ 
<S>                            <C>           <C>              <C>            <C>         <C>           <C>            <C> 
Subtotal from previous                                                   $   $390,060     $  972,999      $275,988      $397,747   
page                                                                     -   --------     ----------      --------      --------   

2000 South Club Drive,
    Building Three             Industrial    Landover, MD                -        465          2,125           729           859   

1950 Stanford Court,
    Building One               Industrial    Landover, MD                -        269          1,554           172           350   

38 Cabot Boulevard             Industrial    Bucks County,               -        329          1,238         2,036           329   
                                             PA

2391 West Winton               Industrial    Hayward, CA                 -        182          1,217           281           182   
Avenue

560 Forbes Boulevard           Industrial    San Francisco,              -         48            435           183            48   
                                             CA

430 Rozzi Place                Industrial    San Francisco,              -         24            217            92            24   
                                             CA


Hotel Properties

Long Wharf Marriott               Hotel      Boston, MA                  -      1,752         31,904         8,021         1,752   

Cambridge Center                  Hotel      Cambridge, MA               -        478         37,918         3,992           478   
Marriott


Garage Property

Cambridge Center North           Garage      Cambridge, MA               -      1,163         11,633             8         1,163   


Development

                                 Develop
Cambridge Master Plan             ment       Cambridge, MA               -          -              -         4,264             -   

                                 Develop
Virginia Master Plan              ment       Springfield, VA             -          -              -         1,506             -   

                                 Develop
Maryland Master Plan              ment       Landover, MD                -          -              -           506             -   

                                 Develop
Cambridge Center Six              ment       Cambridge, MA               -          -              -         2,277             -   

                                 Develop
Cambridge Center Eight            ment       Cambridge, MA               -          -              -            28             -   

                                 Develop
Andover Tech Center               ment       Andover, MA                 -          -              -         4,682             -   
     Subtotal                                                            -      4,710         88,241        28,777         5,185   
                                                                         -      -----         ------        ------         -----   
     Total                                                               $   $394,775     $1,061,240      $304,765      $402,932   
                                                                         =   ========     ==========      ========      ========   
<CAPTION> 
                                                                                                                               
                                                                     Development                                             Depre-
                                                        Building     and                                                     ciable 
                                                        and          Construction              Accumulated   Year            Lives 
Property Name                Type       Location        Improvement  in Process      Total     Depreciation  Built/Renovated (Years)
- -------------                ----       --------        -----------  ----------    ----------  ------------  --------------- ------ 
<S>                       <C>          <C>              <C>          <C>           <C>         <C>           <C>             <C>  
Subtotal from previous                                  $1,236,812       $4,493    $1,639,052   ($234,245)
page                                                    ----------       ------    ----------   ---------
     
2000 South Club Drive,
    Building Three        Industrial    Landover, MD         2,460            -         3,319       (766)      1988            (1)

1950 Stanford Court,                                                                                           
    Building One          Industrial    Landover, MD         1,645            -         1,995       (491)      1986            (1)

38 Cabot Boulevard        Industrial    Bucks County,        3,274            -         3,603     (2,818)      1972/1984       (1)
                                        PA                                                                     

2391 West Winton          Industrial    Hayward, CA          1,498            -         1,680       (906)      1974            (1)
Avenue                                                                                                         

560 Forbes Boulevard      Industrial    San Francisco,         618            -           666       (268)      early 1970's    (1)
                                        CA                                                                     

430 Rozzi Place           Industrial    San Francisco,         309            -           333       (134)      early 1970's    (1)
                                        CA                                                                     


Hotel Properties                                                                                               

Long Wharf Marriott          Hotel      Boston, MA          39,925            -        41,677    (15,581)      1982            (1)

Cambridge Center             Hotel      Cambridge, MA       41,910            -        42,388    (11,182)      1986            (1)
Marriott                                                                                                       


Garage Property                                                                                                

Cambridge Center North      Garage      Cambridge, MA       11,641            -        12,804     (2,304)      1990            (1)


Development                                                                                                    
                            Develop                                                                            
Cambridge Master Plan        ment       Cambridge, MA            4        4,260         4,264         (1)      various           N/A

                            Develop                                                                            
Virginia Master Plan         ment       Springfield, VA        178        1,328         1,506       (175)      various           N/A

                            Develop                                                                            
Maryland Master Plan         ment        Landover, MD            -          506           506           -      various           N/A

                            Develop                                                                            
Cambridge Center Six         ment       Cambridge, MA            -        2,277         2,277                  various           N/A

                            Develop                                                                            
Cambridge Center Eight       ment       Cambridge, MA            -           28            28                  various           N/A

                            Develop                                                                            
Andover Tech Center          ment       Andover, MA              -        4,682         4,682                  various           N/A
     Subtotal                                              103,462       13,081       121,728     (34,626)      
                                                           -------       ------       -------    --------      
     Total                                              $1,340,274      $17,574    $1,760,780   ($268,871)      
                                                        ==========      =======    ==========   =========      
</TABLE> 

(1) Depreciation of the buildings and improvements are calculated over lives
ranging from the life of the lease to 40 years. 

(2) The aggregate cost and accumulated depreciation for tax purposes was 
approximately $1,820,000 and $479,000, respectively.

                                     F-26
<PAGE>
 
                            BOSTON PROPERTIES, INC.
                   REAL ESTATE AND ACCUMULATED DEPRECIATION
                               December 31, 1997
                            (dollars in thousands)


A summary of activity for real estate and accumulated depreciation is as
follows:

<TABLE> 
<CAPTION> 
                                                                1997         1996         1995
                                                            -----------   ----------    --------
<S>                                                         <C>           <C>           <C> 
 
Real estate:
  Balance at beginning of year............................  $1,001,537    $  979,493    $952,374
    Additions to and Improvements of real estate..........     754,185        28,110      29,660
    Write off of fully depreciated assets.................        (942)       (6,066)     (2,541)
                                                            ----------    ----------    --------
  Balance at end of year..................................  $1,760,780    $1,001,537    $979,493
                                                            ==========    ==========    ========
 
Accumulated Depreciation:
  Balance at beginning of year............................  $  238,469    $  215,303    $189,712
    Depreciation expense..................................      29,460        29,232      28,132
    Write off of fully depreciated assets.................        (942)       (6,066)     (2,541)
                                                            ----------    ----------    --------
  Balance at end of year..................................  $  268,871    $  238,469    $215,303
                                                            ==========    ==========    ========
</TABLE>

                                     F-27

<TABLE> <S> <C>

<PAGE>
 
<ARTICLE> 5
<MULTIPLIER> 1,000
       
<S>                             <C>                   <C>
<PERIOD-TYPE>                   OTHER                   OTHER  
<FISCAL-YEAR-END>                          DEC-31-1997             DEC-31-1997
<PERIOD-START>                             JUN-23-1997             JAN-01-1997
<PERIOD-END>                               DEC-31-1997             JUN-22-1997
<CASH>                                          17,560                       0
<SECURITIES>                                         0                       0
<RECEIVABLES>                                   24,458                       0
<ALLOWANCES>                                         0                       0
<INVENTORY>                                          0                       0
<CURRENT-ASSETS>                                     0                       0
<PP&E>                                       1,796,500                       0
<DEPRECIATION>                                  21,719                  17,054
<TOTAL-ASSETS>                               1,672,521                       0
<CURRENT-LIABILITIES>                                0                       0
<BONDS>                                              0                       0
                                0                       0
                                          0                       0
<COMMON>                                           387                       0
<OTHER-SE>                                     174,661                       0
<TOTAL-LIABILITY-AND-EQUITY>                 1,672,521                       0
<SALES>                                        139,641                  93,802
<TOTAL-REVENUES>                               145,643                 129,818
<CGS>                                                0                       0
<TOTAL-COSTS>                                        0                       0
<OTHER-EXPENSES>                                     0                       0
<LOSS-PROVISION>                                     0                       0
<INTEREST-EXPENSE>                              38,264                  53,324
<INCOME-PRETAX>                                      0                       0
<INCOME-TAX>                                         0                       0
<INCOME-CONTINUING>                             27,226                       0
<DISCONTINUED>                                       0                       0
<EXTRAORDINARY>                                  7,925                       0
<CHANGES>                                            0                       0
<NET-INCOME>                                    35,151                   4,605
<EPS-PRIMARY>                                      .91                       0
<EPS-DILUTED>                                      .90                       0
        


</TABLE>

<TABLE> <S> <C>

<PAGE>
 
<ARTICLE> 5
<RESTATED>
<MULTIPLIER> 1,000
       
<S>                             <C>                     <C>
<PERIOD-TYPE>                   3-MOS                   OTHER
<FISCAL-YEAR-END>                          DEC-31-1997             DEC-31-1997
<PERIOD-START>                             JUL-01-1997             JUN-23-1997
<PERIOD-END>                               SEP-30-1997             SEP-30-1997
<CASH>                                          25,989                  25,989
<SECURITIES>                                         0                       0
<RECEIVABLES>                                   13,170                  13,170
<ALLOWANCES>                                         0                       0
<INVENTORY>                                          0                       0
<CURRENT-ASSETS>                               113,060                 113,060
<PP&E>                                       1,433,376               1,433,376
<DEPRECIATION>                                   9,268                  10,113
<TOTAL-ASSETS>                               1,295,638               1,295,638
<CURRENT-LIABILITIES>                           33,375                  33,375
<BONDS>                                              0                       0
                                0                       0
                                          0                       0
<COMMON>                                           387                     387
<OTHER-SE>                                     195,094                 195,094
<TOTAL-LIABILITY-AND-EQUITY>                 1,295,638               1,295,638
<SALES>                                         59,251                  64,253
<TOTAL-REVENUES>                                62,989                  68,353
<CGS>                                                0                       0
<TOTAL-COSTS>                                        0                       0
<OTHER-EXPENSES>                                43,427                  47,261
<LOSS-PROVISION>                                     0                       0
<INTEREST-EXPENSE>                              14,719                  16,091
<INCOME-PRETAX>                                      0                       0
<INCOME-TAX>                                         0                       0
<INCOME-CONTINUING>                             13,780                  14,854
<DISCONTINUED>                                       0                       0
<EXTRAORDINARY>                                   (58)                   7,925
<CHANGES>                                            0                       0
<NET-INCOME>                                    13,722                  22,779
<EPS-PRIMARY>                                      .36                     .59
<EPS-DILUTED>                                      .35                     .58  
        



</TABLE>


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