BOSTON PROPERTIES INC
10-K/A, 1999-04-05
REAL ESTATE
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<PAGE>
 
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                      SECURITIES AND EXCHANGE COMMISSION
                            Washington, D.C. 20549
 
                               ----------------
                                  
                               FORM 10-K/A     
 
[X] ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE
    ACT OF 1934
 
                  For the fiscal year ended December 31, 1998
 
[_] 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)
 
                                                       04-2473675
                 Delaware                       (IRS Employer Id. Number)
       (State or Other Jurisdiction
 
    of Incorporation or Organization)
 
            8 Arlington Street                           02116
          Boston, Massachusetts                        (Zip Code)
     (Address of Principal Executive
               Offices)
 
      Registrant's telephone number, including area code: (617) 859-2600
 
          Securities registered pursuant to Section 12(b) of the Act:
 
           Title of Each Class                 Name of Exchange on Which
       Common Stock, Par Value $.01                  Registered
     Preferred Stock Purchase Rights            New York Stock Exchange
 
       Securities registered pursuant to Section 12(g) of the Act: None
 
   Indicate by check mark whether the registrant: (1) has filed all reports
required to be filed by Section 13 or 15(d) of the Securities Exchange Act of
1934 during the preceding 12 months (or for such shorter period that the
registrant was required to file such reports), and (2) has been subject to
such filing requirements for the past 90 days. Yes [X] No [_]
 
   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 or any
amendment to this Form 10-K. [X]
   
   As of March 26, 1999, the aggregate market value of the 60,956,365 Shares
of Common Stock held by non-affiliates of the Registrant was $1,889,647,315
based upon the closing price of $31.00 on the New York Stock Exchange
composite tape on such date. (For this computation, the Registrant has
excluded the market value of all Shares of Common Stock reported as
beneficially owned by executive officers and trustees 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 26, 1999, there were
63,540,106 Shares of Common Stock outstanding.     
 
   Certain information contained in the Company's Proxy Statement relating to
its Annual Meeting of Stockholders to be held May 5, 1999 are incorporated by
reference in Part III, Items 10, 11, 12 and 13.
 
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<PAGE>
 
    
   Boston Properties, Inc. (the "Company") hereby amends Part II, Item 8 and
Part IV, Item 14 of its Form 10-K dated December 31, 1998 filed with the
Securities and Exchange Commission on March 31, 1999 to amend (1) page F-2 to
include an opinion on the financial statement schedule and (2) amend the
financial statement schedule. This amended annual report on Form 10-K/A does
not reflect any change in the Company's reported consolidated financial
condition or results of operations.       
 
Item 8. Financial Statements and Supplementary Data
 
   See "Index to Financial Statements" on page F-1 of this Form 10-K/A.
 
 
                                       1
<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/A.
       
     (b) Reports on Form 8-K
 
   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 1997 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 and exhibits. The Form 8-K was filed in connection with the
Company's acquisition of Riverfront Plaza and the Mulligan/Griffin Portfolio.
 
   A report on Form 8-K was filed on June 9, 1998 which included information
regarding Item 5. The Form 8-K was filed in connection with information
presented to investors and analysts.
 
   A report on Form 8-K was filed on July 15, 1998 (as amended by Form 8-K/A
filed on August 25, 1998) 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 the Carnegie Center
portfolio.
 
   A report on Form 8-K was filed on July 17, 1998 (as amended by Form 8-K/A
filed on August 25, 1998) 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 The Prudential Center.
 
   A report on Form 8-K was filed on July 27, 1998 (as amended by Form 8-K/A
filed on August 25, 1998) 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 Metropolitan Square.
 
   A report on Form 8-K was filed on October 27, 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 third quarter 1998 earnings and
information presented to investors and analysts.
 
   A report on Form 8-K was filed on November 25, 1998 (as amended by Form 8-
K/A filed on January 26, 1999) 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 Embarcadero Center.
 
   A report on Form 8-K was filed on January 27, 1999 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 1998 earnings.
 
                                       2
<PAGE>
 
     (c) Exhibits
 
<TABLE>
<CAPTION>
   Exhibit No.                            Description
   -----------                            -----------
   <C>         <S>
    3.1        Form of Amended and Restated Certificate of Incorporation of the
               Company (2)
    3.2        Form of Amended and Restated Bylaws of the Company (2)
    4.1        Form of Shareholder Rights Agreement dated as of June , 1997
               between the Company and BankBoston, N.A., as Rights Agent (2)
    4.2        Form of Certificate of Designation for Series E Junior
               Participating Cumulative Preferred Stock, par value $.01 per
               share (2)
    4.3        Form of Certificate of Designations for the Series A Preferred
               Stock. (9)
    4.4        Form of Common Stock Certificate (2)
   10.1        Second Amended and Restated Agreement of Limited Partnership of
               the Operating Partnership, dated as of June 29, 1998. (6)
   10.2        Certificate of Designations for the Series One Preferred Units,
               dated June 30, 1998, constituting an amendment to the Second
               Amended and Restated Agreement of Limited Partnership of the
               Operating Partnership. (6)
   10.3        Certificate of Designations for the Series Two Preferred Units,
               dated November 12, 1998, constituting an amendment to the Second
               Amendment and Restated Agreement of Limited Partnership of the
               Operating Partnership. (9)
   10.4        Certificate of Designations for the Series Three Preferred
               Units, dated November 12, 1998, constituting an amendment to the
               Second Amended and Restated Agreement of Limited Partnership of
               the Operating Partnership. (9)
   10.5        1997 Stock Option and Incentive Plan (2)
   10.6        Form of Noncompetition Agreement between the Company and
               Mortimer B. Zuckerman (2)
   10.7        Form of Employment and Noncompetition Agreement between the
               Company and Edward H. Linde. (2)
   10.8        Form of Employment Agreement between the Company and certain
               executive officers (2)
   10.9        Form of Indemnification Agreement between the Company and each
               of its directors and executive officers (2)
   10.10       Omnibus Option Agreement by and among the Operating Partnership
               and the Grantors named therein dated as of April 9, 1997 (2)
   10.11       Revolving Credit Agreement with BankBoston, N.A. (2)
   10.12       Form of Registration Rights Agreement among the Company and the
               persons named therein (2)
   10.13       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 (2)
   10.14       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 (2)
   10.15       Option Agreement between Boston Properties Limited Partnership
               and Square 36 Properties Limited Partnership dated April 15,
               1997 (2)
   10.16       Form of Certificate of Incorporation of Boston Properties
               Management, Inc (2)
   10.17       Form of By-laws of Boston Properties Management, Inc. (2)
   10.18       Form of Limited Liability Agreement of ZL Hotel LLC (2)
   10.19       Form of Option Agreement to Acquire the Property known as Sumner
               Square(2)
   10.20       Loan Modification Agreement between Lexreal Associates and
               Mitsui Seimei America Corporation relating to loan secured by
               599 Lexington Avenue (2)
   10.21       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 (2)
</TABLE>
 
                                       3
<PAGE>
 
<TABLE>
<CAPTION>
   Exhibit No.                            Description
   -----------                            -----------
   <C>         <S>
   10.22       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 (2)
   10.23       Construction Loan Agreement by and between the Sumitomo Bank,
               Limited and Southwest Market Limited Partnership, dated as of
               August 21, 1990 (2)
   10.24       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 (2)
   10.25       Consent and Loan Modification Agreement regarding One
               Independence Square between the Sumitomo Bank, Limited and
               Southwest Market Limited Partnership dated as of June, 1997 (2)
   10.26       Consent and Loan Modification Agreement regarding Two
               Independence Square between the Sumitomo Bank, Limited and
               Southwest Market Limited Partnership dated as of June, 1997 (2)
   10.27       Form of Amended and Restated Loan Agreement between Square 36
               Office Joint Venture and the Sanwa Bank Limited dated as of June
               , 1997 (2)
   10.28       Indemnification Agreement between the Operating Partnership and
               Mortimer B. Zuckerman and Edward H. Linde (2)
   10.29       Compensation Agreement between the Company and Robert Selsam,
               dated as of August 10, 1995 relating to 90 Church Street (2)
   10.30       Contribution Agreement dated September 2, 1997 by and among the
               Operating Partnership, the Company and Kenvic Associates (5)
   10.31       Lock-Up and Registration Rights Agreement dated November 21,
               1997 by and among the Operating Partnership, the Company and
               Kenvic Associates (1)
   10.32       Agreement dated November 21, 1997 by and between the Operating
               Partnership, the Company and Kenvic Associates (1)
   10.33       Note and Mortgage Modification and Spreader Agreement between
               John Hancock, as lender, and the Operating Partnership, as
               borrower (1)
   10.34       Agreement between Bankers Trust Company, as seller, and the
               Operating Partnership, as borrower, dated September 11, 1997 (3)
   10.35       Term loan agreement between Chase Manhattan Bank, as lender, and
               the Operating Partnership, as borrower, dated September 11, 1997
               (4)
   10.36       Swap Transaction Agreement between the Chase Manhattan Bank and
               the Company dated November 4, 1997 (3)
   10.37       Interest Guarantee and Agreement between Chase Manhattan Bank,
               as lender, and the Operating Partnership, as borrower, dated
               September 11, 1997 (4)
   10.38       Net Cash Flow Shortfall Guarantee and Agreement between Chase
               Manhattan Bank, as lender, and the Operating Partnership, as
               borrower, dated September 11, 1997 (4)
   10.39       Hazardous Material Guaranty and Indemnification Agreement
               between Chase Manhattan Bank, as lender, and the Operating
               Partnership, as borrower, dated September 11, 1997 (4)
   10.40       Amended and Restated Real Estate Purchase and Sale Contract
               between International Business Machines Corporation, as seller,
               and the Operating Partnership, as buyer, dated October 20, 1997
               (4)
   10.41       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 (5)
   10.42       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 (5)
</TABLE>
 
                                       4
<PAGE>
 
<TABLE>
<CAPTION>
   Exhibit No.                            Description
   -----------                            -----------
   <C>         <S>
   10.43       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 (5)
   10.44       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 (5)
   10.45       Environmental Indemnity and Agreement made by the Operating
               Partnership in favor of John Hancock Mutual Life Insurance
               Company (1)
   10.46       Indemnification Agreement made by the Operating Partnership in
               favor of John Hancock Mutual Life Insurance Company (1)
   10.47       Consolidation, Extension and Modification Agreement dated as of
               May 11, 1988 by and between Kenvic Associates and John Hancock
               Mutual Life Insurance Company (1)
   10.48       Modification Agreement dated as of May 30, 1990 by and between
               Kenvic Associates and John Hancock Mutual Life Insurance Company
               (1)
   10.49       Note and Mortgage Notification Agreement, dated July 23, 1992 by
               and between Kenvic Associates and John Hancock Mutual Life
               Insurance Company (2)
   10.50       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 (1)
   10.51       Contribution Agreement dated November 26, 1997 the Operating
               Partnership, Boston Properties LLC and the Contributors named
               therein. (1)
   10.52       Promissory Note dated January , 1998 between the Operating
               Partnership and Metropolitan Life Insurance Company (1)
   10.53       Deed of Trust, Security Agreement and Fixture Filing dated
               January , 1998 (1)
   10.54       Unsecured Indemnity Agreement dated January , 1998 (1)
   10.55       Contribution and Conveyance Agreement concerning the Carnegie
               Portfolio, dated June 30, 1998 by and among the Company, the
               Operating Partnership, and the parties named therein as Landis
               Parties. (6)
   10.56       Contribution Agreement, dated June 30, 1998, by and among the
               Company, the Operating Partnership, and the parties named
               therein as Landis Parties. (6)
   10.57       Registration Rights and Lock-Up Agreement, dated June 30, 1998
               by and among the Company, the Operating Partnership and the
               parties named therein as Holders. (6)
   10.58       Non-Competition Agreement, dated as of June 30, 1998, by and
               between Alan B. Landis and the Company. (6)
   10.59       Agreement Regarding Directorship, dated as of June 30, 1998, by
               and between the Company and Alan B. Landis. (6)
   10.60       Purchase and Sale Agreement, dated May 7, 1998, by and between
               Prudential and the Operating Partnership. (7)
   10.61       Contribution Agreement, dated as of May 7, 1998, by and between
               Prudential and the Operating Partnership. (7)
   10.62       Registration Rights Agreement, dated as of July 2, 1998, by and
               among the Registrant, Strategic Value Investors II, LLC and
               Prudential. (7)
   10.63       Contribution Agreement dated June 5, 1998, by and among Boston
               Properties Limited Partnership, Boston Properties LLC, Square
               224 Associates and the Oliver Carr Company. (8)
   10.64       Registration Rights and Lock-up Agreement, dated as of July 9,
               1998, by and between Boston Properties, Inc. and Square 224
               Associates. (8)
   10.65       Purchase and Sale Agreement, dated as of November 12, 1998, by
               and between Two Embarcadero Center West and BP OFR LLC. (9)
   10.66       Contribution Agreement, dated as of November 12, 1998, by and
               among the Company, The Operating Partnership, Embarcadero Center
               Investors Partnership ("ECIP") and the partners in ECIP listed
               on Exhibit A thereto. (9)
</TABLE>
 
                                       5
<PAGE>
 
<TABLE>
<CAPTION>
   Exhibit No.                            Description
   -----------                            -----------
   <C>         <S>
   10.67       Contribution Agreement, dated as of November 12, 1998, by and
               among the Company, the Operating Partnership, Three Embarcadero
               Center West ("Three ECW") and the partners in Three ECW listed
               on Exhibit A thereto. (9)
   10.68       Three ECW Redemption Agreement, dated as of November 12, 1998,
               by and among Three ECW, the Operating Partnership, BP EC West
               LLC, Prudential, PIC Realty Corporation ("PIC") and Prudential
               Realty Securities II, Inc. ("PRS II").(9)
   10.69       Three ECW Property Contribution Agreement, dated as of November
               12, 1998, by and among Three ECW, Prudential, PIC, PRS II, the
               Operating Partnership, the Company and BP EC West LLC. (9)
   10.70       Registration Rights and Lock-Up Agreement, dated November 12,
               1998, by and among the Company, the Operating Partnership and
               the Holders named therein.(9)
   10.71       Third Amended and Restated Partnership Agreement of One
               Embarcadero Center Venture, dated as of November 12, 1998, by
               and between Boston Properties LLC ("BPLLC"), as managing general
               partner, BP EC1 Holdings LLC ("BP EC1 LLC"), as non-managing
               general partner, and PIC, as non-managing general partner (9)
   10.72       Third Amended and Restated Partnership Agreement of Embarcardero
               Center Associates, dated as of November 12, 1998, by and between
               BP LLC, as managing general partner, BP EC2 Holdings LLC ("BP
               EC2 LLC"), as non-managing general partner, and PIC, as non-
               managing general partner. (9)
   10.73       Second Amended and Restated Partnership Agreement of Three
               Embarcadero Center Venture, dated as of November 12, 1998, by
               and between BPLLC, as managing general partner, BP EC3 Holdings
               LLC ("BP EC3 LLC"), as non-managing general partner, and
               Prudential, as non-managing general partner. (9)
   10.74       Second Amended and Restated Partnership Agreement of Four
               Embarcadero Center Venture, dated as of November 12, 1998, by
               and between BPLLC, as managing general partner, BP EC4 Holdings
               LLC ("BP EC4 LLC"), as non-managing general partner, and
               Prudential, as non-managing general partner. (9)
   10.75       Note Purchase Agreement, dated as of November 12, 1998, by and
               between Prudential Realty Securities, Inc. ("PRS") and One
               Embarcadero Center Venture. (9)
   10.76       Note Purchase Agreement, dated as of November 12, 1998, by and
               between PRS and Embarcadero Center Associates. (9)
   10.77       Note Purchase Agreement, dated November 12, 1998, by and between
               PRS and Three Embarcadero Center Venture. (9)
   10.78       Note Purchase Agreement, dated November 12, 1998, by and between
               PRS and Four Embarcadero Center Venture. (9)
   10.79       Redemption Agreement, dated as of November 12, 1998, by and
               among One Embarcadero Center Venture, BPLLC, BP EC1 LLC and PIC.
               (9)
   10.80       Redemption Agreement, dated as of November 12, 1998, by and
               among Embarcadero Center Associates, BPLLC, BP EC2 LLC and PIC.
               (9)
   10.81       Redemption Agreement, dated as of November 12, 1998, by and
               among Three Embarcadero Center Venture, BPLLC, BP EC3 LLC and
               Prudential. (9)
   10.82       Redemption Agreement, dated as on November 12, 1998, by and
               among Four Embarcadero Center Venture, BPLLC, BP EC4 LLC and
               Prudential. (9)
   10.83       Option and Put Agreement, dated as of November 12, 1998, by and
               between One Embarcadero Center Venture and Prudential. (9)
   10.84       Option and Put Agreement, dated as of November 12, 1998, by and
               between Embarcadero Center Associates and Prudential. (9)
   10.85       Option and Put Agreement, dated as of November 12, 1998, by and
               between Three Embarcadero Center Venture and Prudential. (9)
</TABLE>
 
                                       6
<PAGE>
 
<TABLE>
<CAPTION>
   Exhibit No.                            Description
   -----------                            -----------
   <C>         <S>
   10.86       Option and Put Agreement, dated as of November 12, 1998, by and
               between Four Embarcadero Center Venture and Prudential. (9)
   10.87       Stock Purchase Agreement, dated as of September 28, 1998, by and
               between the Company and Prudential. (9)
   21.1        Schedule of Subsidiaries of the Company (1)
   23.1        Consent of PricewaterhouseCoopers LLP, Independent Accountants
   27.1        Financial Data Schedule
</TABLE>
- --------
(1) Incorporated herein by reference to the Company's Registration Statement on
    Form S-11 (No. 333-41449)
(2) Incorporated herein by reference to the Company's Registration Statement on
    Form S-11 (No. 333-25279)
(3) Incorporated herein by reference to the Company's Current Report on Form 8-
    K filed on November 25, 1997
(4) Incorporated herein by reference to the Company's Current Report on Form 8-
    K/A filed on November 14, 1997
(5) Incorporated herein by reference to the Company's Current Report on Form 8-
    K filed on November 26, 1997
(6)  Incorporated herein by reference to the Company's Current Report on Form
     8-K filed on July 15, 1998.
(7) Incorporated herein by reference to the Company's Current Report on Form 8-
    K filed on July 17, 1998.
(8) Incorporated herein by reference to the Company's Current Report on Form 8-
    K filed on July 27, 1998.
(9) Incorporated herein by reference to the Company's Current Report on Form 8-
    K filed on November 25, 1998.
 
                                       7
<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.
                                             
                                          By: /s/ David G. Gaw     
                                             ----------------------------------
                                                      David G. Gaw
                                                 Chief Financial Officer
   
Date March 31, 1999     
 
   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 31, 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
 
                                          By: /s/ Martin Turchin
                                             ----------------------------------
                                          Martin Turchin
                                          Director
 
                                          By: /s/ Alan B. Landis
                                             ----------------------------------
                                          Alan B. Landis
                                          Director
 
                                          By: /s/ Richard E. Salomon
                                             ----------------------------------
                                          Richard E. Salomon
                                          Director
 
 
                                       8
<PAGE>
 
                 BOSTON PROPERTIES, INC. AND BOSTON PROPERTIES
                               PREDECESSOR GROUP
            INDEX TO CONSOLIDATED AND COMBINED FINANCIAL STATEMENTS
 
                              FINANCIAL STATEMENTS
<TABLE>
<CAPTION>
                                                                           Page
                                                                           ----
<S>                                                                        <C>
  Report of Independent Accountants.......................................  F-2
  Consolidated Balance Sheet of Boston Properties, Inc. (the "Company")
    as of December 31, 1998 and December 31, 1997.........................  F-3
  Consolidated Statement of Operations of the Company for the year ended
    December 31, 1998 and for the period from June 23, 1997
    (inception of operations) to December 31, 1997and Combined
    Statements of Operations for the Predecessor Group for the period
    from January 1, 1997 to June 22, 1997 and the year ended
    December 31, 1996.....................................................  F-4
  Consolidated Statement of Changes in Stockholders' Equity of the Company
    For the year ended December 31, 1998 and 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 year
     ended
    December 31, 1996.....................................................  F-5
  Consolidated Statement of Cash Flows of the Company for the year ended
    December 31, 1998 and for the period June 23, 1997 (inception of
    operations) to December 31, 1997and Combined Statement of Cash
    Flows of the Predecessor Group for the period January 1, 1997 to
    June 22, 1997 and the year ended December 31, 1996....................  F-6
  Notes to Consolidated and Combined Financial Statements.................  F-7
  Financial Statement Schedule--Schedule III.............................. F-22
</TABLE>
 
  All other schedules for which provision is made in the applicable
  accounting regulations of the Securities and Exchange Commission are not
  required under the related instructions or are inapplicable, and therefore
  have been omitted.
 
                                      F-1
<PAGE>
 
                        
                     REPORT OF INDEPENDENT ACCOUNTANTS     
   
To the Board of Directors and Stockholders of     
   
Boston Properties, Inc.     
   
   In our opinion, the accompanying consolidated financial statements and the
financial statement schedule listed in the accompanying index present fairly,
in all material respects, (i) the financial position of Boston Properties, Inc.
(the "Company") at December 31, 1998 and 1997, the results of operations and
cash flows for the year ended December 31, 1998, and for the period from June
23, 1997 to December 31, 1997, and (ii) as described in Note 1, the combined
statements of operations and cash flows, for the period from January 1, 1997 to
June 22, 1997 and for the year ended December 31, 1996 of the Boston Properties
Predecessor Group, in conformity with generally accepted accounting principles.
These financial statements and 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 of these statements in accordance with
generally accepted auditing standards which 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, assessing the accounting principles used and significant estimates
made by management, and evaluating the overall financial statement
presentation. We believe that our audits provide a reasonable basis for the
opinion expressed above.     
                                             
                                          /s/ PricewaterhouseCoopers LLP     
    
Boston, Massachusetts     
   
January 24, 1999, except for Note 16, for which the date is February 10, 1999
    
                                      F-2
<PAGE>
 
                            BOSTON PROPERTIES, INC.
 
                          CONSOLIDATED BALANCE SHEETS
 
<TABLE>
<CAPTION>
        December 31, December 31,
            1998         1997
        ------------ ------------
            (in thousands, except
               share amounts)
<S>     <C>          <C>          <C>
ASSETS
</TABLE>
 
<TABLE>
<S>                                                      <C>         <C>
Real estate:
  Less: accumulated depreciation........................ $4,917,193  $1,796,500
    Total real estate...................................   (357,384)   (294,218)
                                                         ----------  ----------
                                                          4,559,809   1,502,282
Cash and cash equivalents...............................     12,166      17,560
Notes receivable........................................    420,143         --
Escrows.................................................     19,014      14,178
Tenant and other receivables, net.......................     40,830      24,458
Accrued rental income, net..............................     64,251      55,190
Deferred charges, net...................................     46,029      35,485
Prepaid expenses and other assets.......................     26,058      20,225
Investments in joint ventures...........................     46,787       3,143
                                                         ----------  ----------
    Total assets........................................ $5,235,087  $1,672,521
                                                         ==========  ==========
</TABLE>
 
<TABLE>
<S>                                   <C>
LIABILITIES AND STOCKHOLDERS' EQUITY
</TABLE>
 
<TABLE>
<S>                                                      <C>         <C>
Liabilities:
  Mortgage notes payable................................ $2,653,581  $1,099,253
  Notes payable.........................................    420,143         --
  Unsecured line of credit..............................     15,000     233,000
  Accounts payable and accrued expenses.................     33,638      23,822
  Dividends payable.....................................     40,494      22,539
  Accrued interest payable..............................      7,307       6,581
  Other liabilities.....................................     37,209      11,642
                                                         ----------  ----------
    Total liabilities...................................  3,207,372   1,396,837
                                                         ----------  ----------
Commitments and contingencies...........................        --          --
                                                         ----------  ----------
Minority interests......................................  1,079,234     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,
   63,527,819 and 38,694,041 issued and outstanding in
   1998 and 1997, respectively..........................        635         387
  Additional paid-in capital............................    955,711     172,347
  Dividends in excess of earnings.......................     (7,865)      2,314
                                                         ----------  ----------
    Total stockholders' equity..........................    948,481     175,048
                                                         ----------  ----------
      Total liabilities and stockholders' equity........ $5,235,087  $1,672,521
                                                         ==========  ==========
</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 OPERATIONS
                     (in thousands, except per share data)
 
<TABLE>
<CAPTION>
                                 The Company            The Predecessor Group
                          -------------------------- ----------------------------
                                        Period from
                                       June 23, 1997   Period from
                           Year ended       to       January 1, 1997  Year ended
                          December 31, December 31,        to        December 31,
                              1998         1997       June 22, 1997      1996
                          ------------ ------------- --------------- ------------
<S>                       <C>          <C>           <C>             <C>
Revenue
  Rental:
   Base rent............    $419,756     $126,401       $ 80,122       $169,420
   Recoveries from
    tenants.............      48,718       12,564         10,283         22,607
   Parking and other....      19,103          676          3,397          2,979
                            --------     --------       --------       --------
     Total rental
      revenue...........     487,577      139,641         93,802        195,006
  Hotel.................         --           --          31,185         65,678
  Development and
   management services..      12,411        3,813          3,685          5,719
  Interest and other....      13,859        2,189          1,146          3,530
                            --------     --------       --------       --------
     Total revenue......     513,847      145,643        129,818        269,933
                            --------     --------       --------       --------
Expenses
  Rental:
   Operating............      80,894       19,591         13,650         29,823
   Real estate taxes....      69,596       20,502         13,382         28,372
  Hotel:
   Operating............         --           --          20,938         43,634
   Real estate taxes....         --           --           1,514          3,100
  General and
   administrative.......      22,504        6,689          5,116         10,754
  Interest..............     124,860       38,264         53,324        109,394
  Depreciation and
   amortization.........      75,418       21,719         17,054         36,199
                            --------     --------       --------       --------
     Total expenses.....     373,272      106,765        124,978        261,276
                            --------     --------       --------       --------
Income before minority
 interests..............     140,575       38,878          4,840          8,657
Minority interests......     (41,982)     (11,652)          (235)          (384)
                            --------     --------       --------       --------
Income before
 extraordinary items....      98,593       27,226          4,605          8,273
Extraordinary gain
 (loss) from early debt
 extinguishments, net...      (5,481)       7,925            --            (994)
                            --------     --------       --------       --------
Net income..............    $ 93,112     $ 35,151       $  4,605       $  7,279
                            ========     ========       ========       ========
Basic earnings per
 share:
  Income before
   extraordinary items..    $   1.62     $   0.70            --             --
  Extraordinary gain
   (loss), net..........       (0.09)        0.21            --             --
                            --------     --------
  Net income............    $   1.53     $   0.91            --             --
                            ========     ========
  Weighted average
   number of common
   shares outstanding...      60,776       38,694            --             --
Diluted earnings per
 share:
  Income before
   extraordinary items..    $   1.61     $   0.70            --             --
  Extraordinary gain
   (loss), net..........       (0.09)        0.20            --             --
                            --------     --------
  Net income............    $   1.52     $   0.90            --             --
                            ========     ========
  Weighted average
   number of common
   shares outstanding...      61,308       39,108            --             --
</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 STOCKHOLDERS" AND OWNER' EQUITY
                                   (DEFICIT)
                                 (in thousands)
 
<TABLE>
<CAPTION>
                         Common Stock
                         -------------
                                       Additional   Dividends
                                        Paid-in    in excess of Owners' Equity
                         Shares Amount  Capital      Earnings     (Deficit)      Total
                         ------ ------ ----------  ------------ -------------- ---------
<S>                      <C>    <C>    <C>         <C>          <C>            <C>
The Predecessor Group:
  Balance, January 1,
   1996.................                                          $(506,653)   $(506,653)
    Contributions.......                                             33,279       33,279
    Net income for the
     year...............                                              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, 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
  Stock issued in
   connection with
   property
   acquisition..........                       16                                     16
  Allocation of minority
   interest in Operating
   Partnership..........                  (71,669)                              (71,669)
  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          --       175,048
  Sale of Common Stock
   net of Offering
   costs................ 23,000   230     764,760                                764,990
  Unregistered Common
   Shares issued........  1,823    18      58,819                                 58,837
  Conversion of
   operating partnership
   units to common
   stock................     10   --          250                                    250
  Allocation of minority
   interest.............                  (40,490)                               (40,490)
  Net income for the
   year.................                                93,112                    93,112
  Dividends declared....                              (103,291)                 (103,291)
  Stock options
   exercised............      1   --           25                                     25
                         ------  ----  ----------   ----------    ---------    ---------
  Stockholders' Equity,
   December 31, 1998.... 63,528  $635  $  955,711   $   (7,865)   $     --     $ 948,481
                         ======  ====  ==========   ==========    =========    =========
</TABLE>
 
   The accompanying notes are an integral part of these financial statements.
 
                                      F-5
<PAGE>
 
                          BOSTON PROPERTIES, INC. AND
                      BOSTON PROPERTIES PREDECESSOR GROUP
 
               CONSOLIDATED AND COMBINED STATEMENTS OF OPERATIONS
 
<TABLE>
<CAPTION>
                                      The Company                   The Predecessor Group
                          ----------------------------------- ---------------------------------
                                               Period from      Period from
                                              June 23, 1997   January 1, 1997
                             Year ended            to               to           Year ended
                          December 31, 1998 December 31, 1997  June 22, 1997  December 31, 1996
                          ----------------- ----------------- --------------- -----------------
<S>                       <C>               <C>               <C>             <C>
Cash flows from
 operating activities:
 Net income.............     $    93,112        $  35,151        $  4,605         $   7,279
 Adjustments to
  reconcile net income
  to net cash provided
  by operating
  activities:
  Depreciation and
   amortization.........          75,418           21,719          17,054            36,199
  Non-cash portion of
   interest expense.....             247              547           1,497               644
  Extraordinary loss
   (gain) on early debt
   extinguishments......           7,743          (11,216)            --                --
  Minority interests....          38,760            7,659             --                --
 Change in assets and
  liabilities:
  Escrows...............          (4,836)          11,429            (136)            2,242
  Tenant and other
   receivables, net.....         (16,372)          (5,295)         (7,114)            2,313
  Accrued rental
   income...............          (9,061)          (5,694)           (291)              475
  Prepaid expenses and
   other issues.........          (5,833)         (14,330)         (1,494)            2,777
  Accounts payable and
   accrued expenses.....           9,816            5,611           5,220              (572)
  Accrued interest
   payable..............             726           (5,107)          2,021               579
  Other liabilities.....          25,567            5,672           3,728             3,971
                             -----------        ---------        --------         ---------
   Total adjustments....         122,175           10,995          20,485            48,628
                             -----------        ---------        --------         ---------
   Net cash provided by
    operating
    activities..........         215,287           46,146          25,090            55,907
                             -----------        ---------        --------         ---------
Cash flows from
 investing activities:
 Acquisitions to real
  estate and equipment..      (1,697,449)        (526,890)        (27,721)          (30,238)
 Tenant leasing costs...         (17,979)          (2,793)         (2,550)           (4,077)
 Investments in joint
  ventures..............         (43,644)            (570)         (2,573)              --
 Notes receivable.......        (420,143)             --              --                --
 Cash from contributed
  assets................             --            10,510             --                --
                             -----------        ---------        --------         ---------
   Net cash used in
    investing
    activities..........      (2,179,215)        (519,743)        (32,844)          (34,315)
                             -----------        ---------        --------         ---------
Cash flows from
 financing activities:
 Net proceeds from sales
  of common stock.......         819,103          839,209             --                --
 Owners' contributions..             --               --            9,330            33,279
 Owners' distributions..             --               --          (32,125)         (105,619)
 Borrowings on unsecured
  line of credit........         322,000          233,000             --                --
 Repayment of unsecured
  line of credit........        (540,000)             --              --                --
 Repayments of mortgage
  notes.................        (159,714)        (712,338)         (3,799)          (93,695)
 Proceeds from mortgage
  notes.................       1,226,717          220,000             --            117,269
 Proceeds from notes
  payable...............         420,143              --              --             11,933
 Accounts receivable--
  affiliate.............             --               --             (804)              --
 Accounts payable--
  affiliate.............             --           (19,983)         19,983               --
 Proceeds from
  (repayments of) notes
  payable--affiliate....             --           (38,833)         16,716               --
 Dividends and
  distributions.........        (127,307)         (17,026)            --                --
 Deferred financing and
  other costs...........          (2,408)         (12,872)            (35)           (1,628)
                             -----------        ---------        --------         ---------
   Net cash provided by
    financing
    activities..........       1,958,534          491,157           9,266           (38,461)
                             -----------        ---------        --------         ---------
Net increase (decrease)
 in cash................          (5,394)          17,560           1,512           (16,869)
Cash and cash
 equivalents, beginning
 of period..............          17,560              --            8,998            25,867
                             -----------        ---------        --------         ---------
Cash and cash
 equivalents, end of
 period.................     $    12,166        $  17,560        $ 10,510         $   8,998
                             ===========        =========        ========         =========
Supplemental
 disclosures:
 Cash paid for
  interest..............     $    46,422        $  36,783        $ 50,917         $ 107,700
                             ===========        =========        ========         =========
 Interest capitalized...     $     6,933        $   1,168        $  1,111         $     366
                             ===========        =========        ========         =========
Non-cash activities:
 Operating activity:
  Non-cash portion of
   interest expense.....     $       247        $     547        $  1,497               644
                             ===========        =========        ========         =========
 Investing and Financing
  activities:
  Mortgage notes payable
   assumed in connection
   with acquisitions....     $   496,926              --              --                --
                             ===========
  Issuance of minority
   interest in
   connection with
   acquisition..........     $   941,318              --              --                --
                             ===========
  Common stock issued in
   connection with
   acquisition..........     $     5,000              --              --                --
                             ===========
  Dividends and
   distributions
   declared but not
   paid.................     $    40,494          $22,539             --                --
                             ===========        =========
  Conversion of owners'
   equity to notes
   payable--affiliate...             --               --              --          $   4,918
                                                                                  =========
</TABLE>
 
   The accompanying notes are an integral part of these financial statements.
 
                                      F-6
<PAGE>
 
                          BOSTON PROPERTIES, INC. AND
                      BOSTON PROPERTIES PREDECESSOR GROUP
 
       NOTES TO CONSOLIDATED AND COMBINED FINANCIAL STATEMENTS--continued
                (dollars in thousands, except per share amounts)
 
 
1. Organization and Basis of Presentation
 
 Organization
 
   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, Greater Washington, D.C., Greater San Francisco,
Midtown Manhattan, Princeton/East Brunswick, New Jersey, Baltimore, Maryland,
and Richmond, Virginia. The Company is a fully integrated self-administered and
self-managed real estate investment trust ("REIT"). The Company was formed to
succeed to the real estate development, redevelopment, acquisition, management,
operating and leasing businesses association with the predecessor company
founded by Mortimer B. Zuckerman and Edward H. Linde in 1970. The term
"Predecessor Group" or "Predecessor" as used herein refers to 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 includes Boston
Properties, Inc. and its subsidiaries on a consolidated basis (including Boston
Properties Limited Partnership (the "Operating Partnership")).
 
   On June 23, 1997, the Company commenced operations after completing an
initial public offering of 36,110,000 common shares at a price per share of
$25.00 (including 4,710,000 shares issued as a result of the exercise of an
over-allotment option by the underwriters). The proceeds to the Company, net of
underwriters' discount and offering costs, were approximately $839.2 million.
Upon the completion of such offering, the Company succeeded to substantially
all of the interests of the Predecessor in (i) a portfolio of office,
industrial and hotel properties and (ii) the acquisition, property management,
leasing, development and construction businesses of the Predecessor Group. 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.
 
   On January 26, 1998, the Company completed a second offering of 23,000,000
common shares at a price of $35.125 per share (including 3,000,000 shares
issued as a result of the exercise of an over-allotment option by the
underwriters). The proceeds to the Company, net of underwriters' discount and
offering costs were approximately $765.0 million.
 
 Properties
 
   At December 31, 1998, the Company owned a portfolio of 121 commercial real
estate properties (82 properties at December 31, 1997) (the "Properties")
aggregating approximately 31.6 million square feet (including ten properties
currently under development). The Properties consist of 108 office properties,
including 76 Class A office properties and 32 Research and Development
properties; nine industrial properties; three hotels; and one parking garage.
In addition, the Company owns 21 parcels of land totaling 300.1 acres (which
will support approximately 6.8 million square feet of development) and
structured parking for 11,427 vehicles containing approximately 5.8 million
square feet. The Company considers Class A office properties 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. The Company
considers Research and Development properties to support office, research and
development and other technical uses.
 
 Basis of Presentation
 
   The consolidated financial statements of the Company include all the
accounts of the Company, Boston Properties Limited Partnership, and its
subsidiaries. The financial statements reflect the properties acquired at
 
                                      F-7
<PAGE>
 
                          BOSTON PROPERTIES, INC. AND
                      BOSTON PROPERTIES PREDECESSOR GROUP
 
      NOTES TO CONSOLIDATED AND COMBINED FINANCIAL STATEMENTS--continued
               (dollars in thousands, except per share amounts)
 
their historical accounting basis to the extent of the acquisition of
interests from the Predecessor Group's owners who continued as investors. The
remaining interests acquired for cash from those owners of the Predecessor
Group, who decided to sell their interests, have been accounted for as a
purchase and the excess of the purchase price over the related historical cost
basis was allocated to real estate. The combined financial statements of the
Predecessor Group include interests in properties and the third party
commercial real estate development, project management and property management
business. The accompanying combined financial statements for the Predecessor
Group have been presented on a combined basis due to the common ownership and
management of the entities included in the Predecessor Group; therefore, its
combined financial statements are presented for comparative purposes. All
significant intercompany balances and transactions have been eliminated.
 
   Investments in joint ventures where the Company does not have a controlling
interest are accounted for under the equity method. Under the equity method of
accounting the net equity investment of the Company in the joint ventures is
reflected on the consolidated balance sheets.
 
2. Significant Accounting Policies
 
 Real Estate
 
   Real estate is stated at depreciated cost. 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 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. 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.
 
   Depreciation is computed on the straight-line basis over the estimated
useful lives of the assets as follows:
 
<TABLE>
      <S>                                    <C>
      Land improvements..................... 25 to 40 years
      Buildings............................. 10 to 40 years
      Tenant improvements................... Shorter of useful life or terms of
                                             related lease
      Furniture, fixtures, and equipment.... 5 to 7 years
</TABLE>
 
 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 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--continued
                (dollars in thousands, except per share amounts)
 
 
 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 and are included in interest expense. Fully amortized deferred
charges are removed from the books upon the expiration of the lease or maturity
of the debt.
 
 Minority Interests
 
   Minority Interests at December 31, 1998 represent minority interests in
partially owned properties and minority holders' share in the Operating
Partnership.
 
 Offering Costs
 
   Underwriting commissions and offering costs incurred in connection with the
initial public offering and follow-on offering have been reflected as a
reduction of additional paid-in capital.
 
 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
represented approximately 85% and 59% ordinary income for federal income tax
purposes for the year ended December 31, 1998 and the period from June 23, 1997
to December 31, 1997, respectively.
 
 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 $18,510 and $5,985 and decreased revenues by $475 for the
years ended December 31, 1998, 1997 and 1996, 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.
 
   Development fees are recognized ratably over the period of development.
Management fees are recognized as revenue as they are earned.
 
 Interest Expense
 
   Interest expense on fixed rate debt with predetermined periodic rate
increases is computed using the effective interest method over the terms of the
respective loans.
 
 Earnings Per Share
 
   Basic earnings per share ("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 and
conversion of the minority interest in the Operating Partnership.
 
                                      F-9
<PAGE>
 
                          BOSTON PROPERTIES, INC. AND
                      BOSTON PROPERTIES PREDECESSOR GROUP
 
       NOTES TO CONSOLIDATED AND COMBINED FINANCIAL STATEMENTS--continued
                (dollars in thousands, except per share amounts)
 
 
 Reclassifications
 
   Certain prior year balances have been reclassified in order to conform to
current year presentation.
 
 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 values of these financial instruments were not materially
different from their carrying or contract values.
 
 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 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.
 
   To assist the Company in maintaining its status as a REIT, the Company
leases its 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, the Chairman of the Board and
Chief Executive Officer ("CEO"), respectively, are the sole member-managers.
Marriott International, Inc. manages these hotel properties under the Marriott
name pursuant to a management agreement with the lessee. The Company has made
similar arrangements with respect to a hotel property under development.
 
   The net difference between the tax basis and the reported amounts of the
Company's assets and liabilities is approximately $987,789 and $149,000 as of
December 31, 1998 and 1997, respectively.
 
   The Predecessor Group 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 Group'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.
 
                                      F-10
<PAGE>
 
                          BOSTON PROPERTIES, INC. AND
                      BOSTON PROPERTIES PREDECESSOR GROUP
 
       NOTES TO CONSOLIDATED AND COMBINED FINANCIAL STATEMENTS--continued
                (dollars in thousands, except per share amounts)
 
 
 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 and/or other financial 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.
 
 Segment Reporting
 
   In 1998, the Company adopted Statement of Financial Accounting Standards 131
("FAS 131"), "Disclosures about Segments of an Enterprise and Related
Information." FAS 131 supersedes Statement of Financial Accounting Standards
No. 14, "Financial Reporting for Segments of a Business Enterprise", replacing
the "industry segment' approach with a "management" approach. The management
approach designates the internal organization used by management for making
operating decisions and assessing performance as the source of the Company's
segments. FAS 131 also requires disclosures about product and services,
geographic areas, and major customers. The adoption of FAS 131 did not affect
results of operations or financial position of the Company.
 
3. Real Estate
 
   Real estate consisted of the following at December 31,:
 
<TABLE>
<CAPTION>
                                                            1998        1997
                                                         ----------  ----------
   <S>                                                   <C>         <C>
   Land................................................. $  926,862  $  403,022
   Buildings and improvements...........................  3,628,212   1,223,892
   Tenant improvements..................................    134,973     118,374
   Furniture, fixtures and equipment....................     35,710      33,638
   Developments in progress.............................    191,436      17,574
                                                         ----------  ----------
     Total..............................................  4,917,193   1,796,500
   Less: accumulated depreciation.......................   (357,384)   (294,218)
                                                         ----------  ----------
                                                         $4,559,809  $1,502,282
                                                         ----------  ----------
</TABLE>
 
4. Deferred Charges
 
   Deferred charges consisted of the following at December 31,:
 
<TABLE>
<CAPTION>
                                                               1998      1997
                                                             --------  --------
   <S>                                                       <C>       <C>
   Leasing costs............................................ $ 58,803  $ 46,769
   Financing costs..........................................   28,128    29,271
                                                             --------  --------
                                                               86,931    76,040
   Less: accumulated amortization...........................  (40,902)  (40,555)
                                                             --------  --------
                                                             $ 46,029  $ 35,485
                                                             --------  --------
</TABLE>
 
5. Investments in Joint Ventures
 
   The investments in joint ventures represent (i) a 25% interest in a joint
venture which is developing two office buildings in Reston, VA, (ii) a 25%
interest in a joint venture which is developing one office building in Reston,
VA and (iii) a 50% interest in a joint venture which is developing an office
building in Washington,
 
                                      F-11
<PAGE>
 
                          BOSTON PROPERTIES, INC. AND
                      BOSTON PROPERTIES PREDECESSOR GROUP
 
      NOTES TO CONSOLIDATED AND COMBINED FINANCIAL STATEMENTS--continued
               (dollars in thousands, except per share amounts)
 
DC. The Company also serves as development manager for these joint ventures.
Under the equity method of accounting the net equity investment is reflected
on the consolidated balance sheets.
 
   The combined summarized balance sheets of the joint ventures are as
follows:
 
<TABLE>
<CAPTION>
                                                                 1998    1997
                                                               -------- -------
   <S>                                                         <C>      <C>
   Balance Sheets:
     Land..................................................... $ 43,550 $ 8,167
     Developments in progress.................................  128,867  16,748
     Other assets.............................................   10,032   1,192
                                                               -------- -------
       Total Assets........................................... $182,449 $26,107
                                                               -------- -------
     Construction loans payable............................... $ 55,638 $ 6,969
     Other liabilities........................................   20,595   7,042
     Partners' equity.........................................  106,216  12,096
                                                               -------- -------
       Total Liabilities and Partners' Equity................. $182,449 $26,107
                                                               -------- -------
   Company's Share of Equity.................................. $ 46,787 $ 3,143
                                                               -------- -------
</TABLE>
 
6. Mortgage Notes Payable
 
   Mortgage notes payable comprise various loans at December 31, 1998 and
1997, 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 February 1, 2010. Interest
rates on fixed rate mortgage notes payable aggregating approximately
$2,623,847 and $1,082,000 at December 31, 1998 and 1997, respectively, range
from 6.40% to 8.59% (averaging 7.05% and 7.55% at December 31, 1998 and 1997,
respectively). Variable rate mortgage notes payable were approximately $11,417
and $11,600 at December 31, 1998 and 1997, respectively, with rates ranging
from 1.0% above the London Interbank Offered Rate ("LIBOR") (5.06% and 5.90%
at December 31, 1998 and 1997, respectively) to 1.5% above the LIBOR rate.
 
   The interest rates related to the mortgage notes payable for three
properties aggregating approximately $209,987 at December 31, 1998 and for two
properties aggregating $198,781 at December 31, 1997 are subject to periodic
scheduled rate increases. Interest expense for these mortgage notes payable is
computed using the effective interest method. Additionally, mortgage notes
payable at December 31, 1998 on three properties in the amount of $320,484 and
a mortgage note payable on one property at December 31, 1997 totaling $185,618
have been accounted for at their fair value. The impact of using these methods
decreased interest expense $2,656 and increased interest expense $547 and
$1,347 for the years ended December 31, 1998, 1997 and 1996 respectively. The
cumulative liability related to these adjustments is $18,317 and $6,430 at
December 31, 1998 and 1997, respectively, and is included in mortgage notes
payable.
 
   Combined aggregate principal payments of mortgage notes payable at December
31, 1998 are as follows:
 
<TABLE>
           <S>                                  <C>
           1999................................ $ 26,940
           2000................................  233,075
           2001................................  146,059
           2002................................  385,394
           2003................................  206,853
</TABLE>
 
   Certain mortgage indebtedness aggregating approximately $707.1 million was
repaid in conjunction with the initial public offering. These repayments,
along with (i) the payment of certain related repayment penalties,
 
                                     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 amounts)
 
(ii) the write-off of the related previously capitalized deferred financing
costs and (iii) the extinguishment of the excess of the mortgage not payable
balance over the principal payment necessitated by an 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 during the
period from June 23, 1997 through December 31, 1997 in the financial
statements.
 
   During 1998, the Company incurred an extraordinary loss primarily related
to fees incurred in connection with the repayment of certain mortgages payable
in connection with the Embarcadero Center acquisition.
 
7. Unsecured Line of Credit
 
   As of December 31, 1998, the Company has an agreement for a $500,000
unsecured revolving credit facility (the "Unsecured Line of Credit") maturing
in June 2000. Outstanding balances under the Unsecured Line of Credit
currently bear interest at a floating rate based on an increase over LIBOR
from 90 to 120 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 was $15,000 and
$233,000 at December 31, 1998 and 1997, respectively. The weighted average
balance outstanding was approximately $68,293 and $117,000 during the year
ended December 31, 1998 and the period from June 23, 1997 through December 31,
1997, respectively. The weighted average interest rate on amounts outstanding
was approximately 6.64% and 6.82% during the year ended December 31, 1998 and
the period from June 23, 1997 through December 31, 1997. The applicable
interest rate under the Unsecured Line of Credit at December 31, 1998 was
6.73%.
 
   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.
 
8. Leasing Activity
 
   Future minimum lease payments (excluding operating expense reimbursements)
as of December 31, 1998, under non-cancelable operating leases, which expire
on various dates through 2029, are as follows:
 
<TABLE>
<CAPTION>
           Years ending December 31,
           -------------------------
           <S>                                 <C>
           1999............................... $ 547,576
           2000...............................   511,158
           2001...............................   471,238
           2002...............................   411,966
           2003...............................   334,378
           Thereafter......................... 1,234,584
</TABLE>
 
   The geographic concentration of the future minimum lease payments to be
received is detailed as follows:
 
<TABLE>
<CAPTION>
           Location
           --------
           <S>                                <C>
           Greater Boston.................... $  584,318
           Greater Washington D.C............  1,273,401
           Midtown Manhattan.................    913,636
           Greater San Francisco.............    631,611
           New Jersey and Pennsylvania.......    107,934
</TABLE>
 
                                     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 amounts)
 
 
   No one tenant represented more than 10% of the Company's total rental income
for the year ended December 31, 1998. One tenant represented 13.3% of the
Company's total rental income for the year ended December 31, 1997.
 
9. Segment Reporting
 
   The Company has determined that its segments are those that are based on the
Company's method of internal reporting, which classifies its operations by both
geographic area and property type. The Company's segments by geographic area
are: Greater Boston, Greater Washington D.C., midtown Manhattan, Greater San
Francisco, and New Jersey and Pennsylvania. Segments by property type include:
Class A Office, R&D, Industrial, Hotel, and Garage.
 
   Asset information by segment is not reported, since the Company does not use
this measure to assess performance; therefore, the depreciation and
amortization expenses are not allocated among segments. Interest income,
management and development services, interest expense, and general and
administrative expenses are not included in net operating, as the internal
reporting addresses these on a corporate level.
 
   Information by Geographic Area and Property Type:
 
   For the year ended December 31, 1998:
 
<TABLE>
<CAPTION>
                                     Greater               Greater    New Jersey
                         Greater   Washington,  Midtown      San         and       Grand
                          Boston      D.C.     Manhattan  Francisco  Pennsylvania  Totals
                         --------  ----------- ---------  ---------  ------------ --------
<S>                      <C>       <C>         <C>        <C>        <C>          <C>
Rental Revenues:
  Class A Office........ $ 94,284   $ 169,882  $ 129,644  $ 18,914     $17,407    $430,131
  R&D...................    5,955      17,121        --      1,502         --       24,578
  Industrial............    1,611       1,431        --      1,349         789       5,180
  Hotels................   25,944         --         --        --          --       25,944
  Garage................    1,744         --         --        --          --        1,744
                         --------   ---------  ---------  --------     -------    --------
    Total...............  129,538     188,434    129,644    21,765      18,196     487,577
                         --------   ---------  ---------  --------     -------    --------
% of Grand Totals.......    26.57%      38.65%     26.59%     4.46%       3.73%     100.00%
                         --------   ---------  ---------  --------     -------    --------
Rental Expenses:
  Class A Office........   36,591      45,156     44,787     7,099       5,663     139,296
  R&D                       1,808       3,644        --        395         --        5,847
  Industrial............      525         316        --        305         107       1,253
  Hotels................    3,562         --         --        --          --        3,562
  Garage................      532         --         --        --          --          532
                         --------   ---------  ---------  --------     -------    --------
    Total...............   43,018      49,116     44,787     7,799       5,770     150,490
                         --------   ---------  ---------  --------     -------    --------
% of Grand Totals.......    28.59%      32.64%     29.76%     5.18%       3.83%     100.00%
                         --------   ---------  ---------  --------     -------    --------
Net Operating Income....  $86,520    $139,318    $84,857   $13,966     $12,426    $337,087
                         ========   =========  =========  ========     =======    ========
% of Grand Totals.......    25.67%      41.33%     25.17%     4.14%       3.69%     100.00%
                         ========   =========  =========  ========     =======    ========
</TABLE>
 
 
                                      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 amounts)
 
   For the year ended December 31, 1997 (includes operations of the Company and
the Predecessor):
 
<TABLE>
<CAPTION>
                                    Greater              Greater   New Jersey
                         Greater  Washington,  Midtown     San        and       Grand
                         Boston      D.C.     Manhattan Francisco Pennsylvania  Totals
                         -------  ----------- --------- --------- ------------ --------
<S>                      <C>      <C>         <C>       <C>       <C>          <C>
Rental Revenues:
  Class A Office........ $42,082    $87,688    $67,350      --         --      $197,120
  R&D...................   5,420      7,848        --    $1,314        --        14,582
  Industrial............   1,685      1,450        --     1,082       $829        5,046
  Hotels................  14,611        --         --       --         --        14,611
  Garage................   2,084        --         --       --         --         2,084
Hotel Revenues..........  31,185        --         --       --         --        31,185
                         -------    -------    -------   ------       ----     --------
  Total.................  97,067     96,986     67,350    2,396        829      264,628
                         -------    -------    -------   ------       ----     --------
% of Grand Totals.......   36.68%     36.65%     25.45%    0.91%      0.31%      100.00%
                         -------    -------    -------   ------       ----     --------
Operating Expenses:
  Class A Office........  13,445     23,659     23,341      --         --        60,445
  R&D...................   1,398      1,415        --       452        --         3,265
  Industrial............     531        324        --       183        105        1,143
  Hotels................   1,737        --         --       --         --         1,737
  Garage................     535        --         --       --         --           535
Hotel Expenses..........  22,452        --         --       --         --        22,452
                         -------    -------    -------   ------       ----     --------
  Total.................  40,098     25,398     23,341      635        105       89,577
                         -------    -------    -------   ------       ----     --------
% of Grand Totals.......  44.76%     28.35%      26.06%    0.71%      0.12%         100%
                         -------    -------    -------   ------       ----     --------
Net Operating Income.... $56,969    $71,588    $44,009   $1,761       $724     $175,051
                         =======    =======    =======   ======       ====     ========
% of Grand Totals.......   32.54%     40.90%     25.14%    1.01%      0.41%      100.00%
                         =======    =======    =======   ======       ====     ========
</TABLE>
 
   The following is a reconciliation of net operating income to income before
minority interests:
 
<TABLE>
<CAPTION>
                                                              1998    1997(/1/)
                                                            --------  ---------
<S>                                                         <C>       <C>
Net operating income....................................... $337,087  $175,051
Add:
  Development and management services......................   12,411     7,498
  Interest income..........................................   13,859     3,335
Less:
  General and administrative...............................  (22,504)  (11,805)
  Interest expense......................................... (124,860)  (91,588)
  Depreciation and amortization............................  (75,418) (38,773)
                                                            --------  --------
Income before minority interests........................... $140,575   $43,718
                                                            ========  ========
</TABLE>
- --------
(1) Includes operations of the Company and the Predecessor.
 
10. Employee Benefit Plan
 
   Effective January 1, 1985, the Predecessor Group 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
 
                                      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 amounts)
 
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 year ended December 31,
1998, 1997 and 1996 was $583, $403 and $359, respectively.
 
   Participants are immediately vested in their pre-tax and after-tax
contributions. Participants vest in the Company's and the Predecessor Group's
matching contributions and earnings thereon over a five-year period.
 
11. Stock Option and Incentive Plan
 
   The Company has established a stock option and incentive plan for the
purpose of attracting and retaining qualified directors, officers and employees
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 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. The Company
applies Accounting Principles Bulletin Opinion No. 25 ("APB 25") and related
Interpretations in accounting for its plan. Statement of Financial Accounting
Standards No.123 ("SFAS 123") was issued by the Financial Accounting Standards
Board in 1995 and, if fully adopted, changes the methods for recognition of
cost on plans similar to that of the Company. Adoption of FAS 123 is optional;
however, pro forma disclosure as if the Company adopted the cost recognition
requirements under FAS 123 are presented below. The Company did not record any
expense under APB 25.
 
   A summary of the status of the Company's stock options as of December 31,
1998 and 1997 and changes during the years ended December 31, 1998 and 1997 are
presented below:
 
<TABLE>
<CAPTION>
                                                                Weighted Average
                                                      Shares     Exercise Price
                                                     ---------  ----------------
   <S>                                               <C>        <C>
   Outstanding at June 23, 1997..................... 2,290,000       $25.00
   Granted..........................................       --           --
   Exercised........................................       --           --
   Cancelled........................................    (5,900)      $25.00
                                                     ---------       ------
   Outstanding at December 31, 1997................. 2,284,100       $25.00
   Granted.......................................... 3,621,663       $34.13
   Exercised........................................    (1,034)      $25.00
   Cancelled........................................   (66,779)      $31.61
                                                     ---------       ------
   Outstanding at December 31, 1998................. 5,837,950       $30.58
                                                     =========       ======
</TABLE>
 
 
                                      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 amounts)
 
   As of December 31, 1998, there were 9,127,602 shares authorized under the
plan. The weighted average fair value of options granted during the year was
$5.49 and $3.81 for the years ended December 31, 1998 and 1997, respectively.
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 1998 and 1997:
 
<TABLE>
<CAPTION>
                                                                1998    1997
                                                                ----    ----
      <S>                                                       <C>     <C>
      Dividend yield........................................... 4.80%   6.26%
      Expected life of option.................................. 6 years 6 years
      Risk-free interest rate.................................. 5.58%   6.32%
      Expected stock price volatility..........................   20%     20%
</TABLE>
 
   The following table summarizes information about stock options outstanding
at December 31, 1998:
 
<TABLE>
<CAPTION>
                                 Options Outstanding                Options Exercisable
                     ------------------------------------------- --------------------------
                       Number    Weighted Average    Weighted      Number       Weighted
      Range of       Outstanding    Remaining        Average     Exercisable    Average
   Exercise Prices   at 12/31/98 Contractual Life Exercise Price at 12/31/98 Exercise Price
   ---------------   ----------- ---------------- -------------- ----------- --------------
   <S>               <C>         <C>              <C>            <C>         <C>
   $25.00--
    $34.75            5,837,950        9.66           $30.58       495,261       $25.00
</TABLE>
 
   The compensation cost under SFAS 123 for the stock performance-based plan
would have been $6,847 and $999 in 1998 and 1997, respectively. Had
compensation cost for the Company's 1997 grants for stock-based compensation
plans been determined consistent with FAS 123, the Company's net income, and
net income per common share for 1998 would approximate the pro forma amounts
below:
 
<TABLE>
<CAPTION>
                                                                 1998    1997
                                                                ------- -------
      <S>                                                       <C>     <C>
      Net income............................................... $86,265 $34,152
      Net income per common share--basic....................... $  1.42 $  0.88
      Net income per common share--diluted..................... $  1.41 $  0.87
</TABLE>
 
   The effects of applying FAS 123 in this pro forma disclosure are not
indicative of future amounts. FAS 123 does not apply to future anticipated
awards.
 
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
 
                                      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 amounts)
 
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 a property in Massachusetts, the Company received a Notice
of Potential Responsibility 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. On January 15,
1997, the Company notified the state regulatory authority that the Company
would cooperate with and monitor the tenant at the property (which investigated
the matter and undertook remedial actions). That investigation identified the
presence of hazardous substances in and near a catch basin along the property
line. The tenant completed an Immediate Response Action at the site in April
1998. The Company expects the tenant will likewise take any additional
necessary response actions. The lease with the tenant contains a provision
pursuant to which the tenant indemnifies the Company against such liability.
 
   On January 15, 1992, another property in Massachusetts was listed by the
state regulatory authority as an unclassified Confirmed Disposal Site in
connection with groundwater contamination. 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, which eliminates certain
deadlines for conducting response actions at a site and may qualify the Company
for liability relief under recent statutory amendments. 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.
 
   An investigation at an additional property in Massachusetts identified
groundwater contamination. The Company engaged a specially licensed
environmental consultant to perform the necessary investigation and assessment
and to prepare submittals to the state regulatory authority. On March 11, 1998,
the consultant submitted to the state regulatory authority a Release
Notification and Downgradient Property Status Opinion. This Opinion concluded
that the property qualifies for Downgradient Property Status under the state
regulatory program, which eliminates certain deadlines for conducting response
actions at a site and may qualify the Company for liability relief under recent
statutory amendments. 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 the above will not have a material impact on the financial position,
results of operations or liquidity of the Company.
 
 Development
 
   The Company has entered into contracts for the construction and renovation
of properties currently under development. Commitments under these arrangements
totaled approximately $94,300 and $106,100 at December 31, 1998 and 1997,
respectively.
 
                                      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 amounts)
 
 
 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 the CEO. In connection with the acquisition or contribution of 31
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 2008. 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 Operating Partnership units.
 
13. Earnings Per Share
 
   Earnings per share is computed as follows:
 
<TABLE>
<CAPTION>
                                              For the year ended December 31,
                                                            1998
                                             -----------------------------------
                                               Income       Shares     Per Share
                                             (Numerator) (Denominator)  Amount
                                             ----------- ------------  ---------
<S>                                          <C>         <C>           <C>
Basic Earnings:
  Income available to common shareholders...   $93,112      60,776       $1.53
Effect of Dilutive Securities:
  Stock Options.............................                   532        (.01)
                                               -------      ------       -----
Diluted Earnings:
  Income available to common shareholders...   $93,112      61,308       $1.52
                                               =======      ======       =====
</TABLE>
 
<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:
  Income available to common
   shareholders..................   $      35,151          38,694    $      .91
Effect of Dilutive Securities:
  Stock Options..................                             414          (.01)
                                    -------------    ------------    ----------
Diluted Earnings:
  Income available to common
   shareholders..................   $      35,151          39,108    $      .90
                                    =============    ============    ==========
</TABLE>
 
14. Selected Interim Financial Information (unaudited)
 
<TABLE>
<CAPTION>
                                                  1998
                         -------------------------------------------------------
                         Quarter Ended Quarter Ended Quarter Ended Quarter Ended
                           March 31,     June 30,    September 30, December 31,
                         ------------- ------------- ------------- -------------
<S>                      <C>           <C>           <C>           <C>
Revenues................    $95,603      $108,041      $140,177      $170,026
Income before minority
 interests..............     26,228        34,430        36,087        43,830
Income before
 extraordinary item.....     19,631        26,357        25,341        27,271
Per share income before
 extraordinary item.....        .36           .42           .40           .43
Net income..............     19,631        29,921        25,341        18,226
Basic earnings per
 share..................        .36           .48           .40           .29
</TABLE>
 
 
                                      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 amounts)
 
15. Pro Forma Financial Information
 
   The following Pro Forma Condensed Statements of Income for the years ended
December 31, 1998 and 1997 are presented as if the Initial Offering, the
related formation transactions and the material property acquisitions
subsequent to the Initial Offering had occurred on January 1, 1997. 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, 1997, or to project results for any future period.
 
   Pro Forma Condensed Statements of Income:
 
<TABLE>
<CAPTION>
                                                     Years ended December 31,
                                                     ------------------------
                                                         1998         1997
                                                     ------------ ------------
                                                            (Unaudited)
      <S>                                            <C>          <C>
      Revenues...................................... $    704,012 $    638,548
      Expenses...................................... $    535,825 $    522,700
      Net income before extraordinary items......... $    105,864 $     61,323
      Basic earnings per share (before extra-
       ordinary items............................... $       1.67 $        .97
      Diluted earnings per share (before extra-
       ordinary items).............................. $       1.65 $        .96
</TABLE>
 
16. Subsequent Events
 
   On January 21, 1999, the Company entered into a binding agreement to acquire
the leasehold interest in the remaining two development sites in New York
City's Times Square for approximately $312.25 million. The sites will support
more than 2 million square feet of development.
 
   On February 10, 1999, the Company closed on phase two of its acquisition of
Embarcadero Center. As a result, the Company owns 100% of the six buildings
comprising the Embarcadero Center. The total purchase price (including both
phases one and two) of approximately $1.2 billion was funded through the
assumption or incurrence of $730.0 million of mortgage financing, the issuance
of Preferred Units having an aggregate value of approximately $286.4 million,
cash of $100.0 million from the proceeds from the sale of the Company's Series
A Convertible Redeemable Preferred Stock, and a draw down of approximately
$97.3 million on the Company's Unsecured Line of Credit.
 
   In connection with the acquisition of Embarcadero Center, the proceeds from
the notes receivable of $420.1 million were used to discharge the notes
payable.
 
                                      F-20
<PAGE>
 
                            BOSTON PROPERTIES, INC.
 
             SCHEDULE 3--REAL ESTATE AND ACCUMULATED DEPRECIATION
                               December 31, 1998
                            (dollars in thousands)
 
<TABLE>   
<CAPTION>
                                                                           Costs
                                                                        Capitalized                           Development
                                                                        Subsequent                                and
                                                                            to        Land and   Building and Construction
 Property Name     Type      Location     Encumbrances  Land   Building Acquisition Improvements Improvements in  Progress  Total
 -------------    ------ ---------------- ------------ ------- -------- ----------- ------------ ------------ ------------ -------
<S>               <C>    <C>              <C>          <C>     <C>      <C>         <C>          <C>          <C>          <C>
280 Park
Avenue..........  Office New York, NY       220,000    125,288 201,115    11,690      125,288      212,805        --       338,093
599 Lexington
Avenue..........  Office New York, NY       225,000     81,040 100,507    71,487       81,040      171,994        --       253,034
Riverfront
Plaza...........  Office Richmond, VA       119,992     18,000 156,733       587       18,000      157,320        --       175,320
875 Third
Avenue..........  Office New York, NY       153,807     74,880 139,151       844       74,880      139,995        --       214,875
Democracy
Center..........  Office Bethesda, MD           --      12,550  50,015    20,278       13,695       69,148        --        82,843
100 East Pratt
Street..........  Office Baltimore, MD       94,371     27,562 109,662     1,032       27,562      110,694        --       138,256
Two Independence
Square..........  Office Washington, DC     120,252     14,053  59,883     9,016       15,039       67,913        --        82,952
Capital
Gallery.........  Office Washington, DC      59,103      4,725  29,560    12,417        4,730       41,972        --        46,702
One Independence
Square..........  Office Washington, DC      76,611      9,356  33,701    17,475        9,634       50,898        --        60,532
2300 N Street...  Office Washington, DC      66,000     16,509  22,415    12,820       16,509       35,235        --        51,744
NIMA Building...  Office Reston, VA          22,291     10,567  67,431         2       10,567       67,433        --        78,000
Reston Corporate
Center..........  Office Reston, VA          25,727      9,135  41,398       184        9,135       41,582        --        50,717
Lockheed Martin
Building........  Office Reston, VA          27,249     10,210  58,884         0       10,210       58,884        --        69,094
500 E Street....  Office Washington, DC         --         109  22,420    11,027        1,569       31,987        --        33,556
One Cambridge
Center..........  Office Cambridge, MA          --         134  25,110     3,462          134       28,572        --        28,706
University
Place...........  Office Cambridge, MA          --         --   37,091       --           --        37,091        --        37,091
Newport Office
Park............  Office Quincy, MA           6,499      3,500  18,208         2        3,500       18,210        --        21,710
Lexington Office
Park............  Office Lexington, MA          --         998   1,426    10,368        1,072       11,720        --        12,792
191 Spring
Street..........  Office Lexington, MA       23,430      4,213  27,166    16,453        2,850       44,982        --        47,832
Ten Cambridge
Center..........  Office Cambridge, MA       40,000      1,299  12,943     4,428        1,868       16,802        --        18,670
10 and 20
Burlington Mall
Road............  Office Burlington, MA      16,613        930   6,928     8,371          939       15,290        --        16,229
Waltham Office
Center..........  Office Waltham, MA            --         422   2,719     3,214          425        5,930        --         6,355
Montvale
Center..........  Office Gaithersburg, MD     7,792      1,574   9,786     3,881        2,399       12,842        --        15,241
91 Hartwell
Avenue..........  Office Lexington, MA       11,322        784   6,464     2,410          784        8,874        --         9,658
Three Cambridge
Center..........  Office Cambridge, MA          --         174  12,200       803          174       13,003        --        13,177
201 Spring
Street..........  Office Lexington, MA          --       2,695  11,712     2,632        2,695       14,344        --        17,039
Bedford Business
Park............  Office Bedford, MA         22,667        534   3,403    12,936          534       16,339        --        16,873
Eleven Cambridge
Center..........  Office Cambridge, MA          --         121   5,535       504          121        6,039        --         6,160
33 Hayden
Avenue..........  Office Lexington, MA          --         266   3,234        76          266        3,310        --         3,576
Decoverly Two...  Office Rockville, MD          --       1,994   8,814        46        1,994        8,860        --        10,854
Decoverly
Three...........  Office Rockville, MD          --       2,220   9,044         0        2,220        9,044        --        11,264
170 Tracer
Lane............  Office Waltham, MA            --         398   4,601     1,288          418        5,869        --         6,287
32 Hartwell
Avenue..........  Office Lexington, MA          --         168   1,943     2,724          168        4,667        --         4,835
<CAPTION>
                  Accumulated  Year (s) Built/  Depreciable
 Property Name    Depreciation    Renovated    Lives (Years)
 -------------    ------------ --------------- -------------
<S>               <C>          <C>             <C>
280 Park
Avenue..........      7,113    1968/95-96           (1)
599 Lexington
Avenue..........     69,706    1986                 (1)
Riverfront
Plaza...........      3,679    1990                 (1)
875 Third
Avenue..........      3,768    1982                 (1)
Democracy
Center..........     23,628    1985-88/94-96        (1)
100 East Pratt
Street..........      3,474    1975/1991            (1)
Two Independence
Square..........     12,990    1992                 (1)
Capital
Gallery.........     17,246    1981                 (1)
One Independence
Square..........     13,277    1991                 (1)
2300 N Street...     10,932    1986                 (1)
NIMA Building...      1,545    1987/1988            (1)
Reston Corporate
Center..........        948    1984                 (1)
Lockheed Martin
Building........      1,349    1987/1988            (1)
500 E Street....     13,038    1987                 (1)
One Cambridge
Center..........      9,940    1987                 (1)
University
Place...........        479    1985                 (1)
Newport Office
Park............        683    1988                 (1)
Lexington Office
Park............      4,541    1982                 (1)
191 Spring
Street..........     11,905    1971/1995            (1)
Ten Cambridge
Center..........      6,324    1990                 (1)
10 and 20
Burlington Mall
Road............      5,567    1984-1989/95-96      (1)
Waltham Office
Center..........      3,044    1968-1970/87-88      (1)
Montvale
Center..........      3,465    1987                 (1)
91 Hartwell
Avenue..........      3,029    1985                 (1)
Three Cambridge
Center..........      3,887    1987                 (1)
201 Spring
Street..........        414    1997                 (1)
Bedford Business
Park............      7,166    1980                 (1)
Eleven Cambridge
Center..........      2,430    1984                 (1)
33 Hayden
Avenue..........      1,531    1979                 (1)
Decoverly Two...        202    1987                 (1)
Decoverly
Three...........        --     1989                 (1)
170 Tracer
Lane............      2,804    1980                 (1)
32 Hartwell
Avenue..........      2,845    1968-1979/1987       (1)
</TABLE>    
 
                                      F-21
<PAGE>
 
                            BOSTON PROPERTIES, INC.
 
             SCHEDULE 3--REAL ESTATE AND ACCUMULATED DEPRECIATION
                               December 31, 1998
                            (dollars in thousands)
 
<TABLE>   
<CAPTION>
                                                                            Costs
                                                                         Capitalized                           Development
                                                                         Subsequent                                and
                                                                             to        Land and   Building and Construction
 Property Name     Type      Location      Encumbrances  Land   Building Acquisition Improvements Improvements in Progress
 -------------    ------ ----------------- ------------ ------- -------- ----------- ------------ ------------ ------------
<S>               <C>    <C>               <C>          <C>     <C>      <C>         <C>          <C>          <C>
195 West
Street..........  Office Waltham, MA             --       1,611   6,652       621        1,611        7,273         --
92-100 Hayden
Avenue..........  Office Lexington, MA         9,065        594   6,748       880          595        7,627         --
204 Second
Avenue..........  Office Waltham, MA             --          37   2,402       632           37        3,034         --
8 Arlington
Street..........  Office Boston, MA              --          90   1,988        61           90        2,049         --
Carnegie
Center/Tower
One.............  Office New Jersey           63,693     70,146 216,061        43       70,146      216,104         --
Candler
Building........  Office Baltimore, MD           --      12,500  48,734         4       12,500       48,738         --
Metropolitan
Square..........  Office Washington, DC      107,386     35,000 151,709       424       35,000      152,133         --
Prudential
Center..........  Office Boston, MA          298,686    131,850 443,180     9,083      131,850      449,584       2,679
Reservoir
Place...........  Office Waltham, MA          77,006     18,207  88,018         3       18,207       88,021         --
Embarcadero
Center..........  Office San Francisco, CA   729,637    211,297 996,442       --       211,297      996,422         --
910 Clopper
Road............  Office Gaithersburg, MD        --       2,000  15,448       --         2,000       15,448         --
Fullerton
Square..........  Office Springfield, VA         --       3,045  11,522       --         3,045       11,522         --
7450 Boston
Boulevard,
Building Three..  Office Springfield, VA         --       1,165   4,681        27        1,165        4,708         --
Hilltop Business
Center..........  Office San Francisco, CA     4,417         53     492       356           53          848         --
7435 Boston
Boulevard,
Building One....  Office Springfield, VA         --         392   3,822     1,973          486        5,701         --
7601 Boston
Boulevard,
Building Eight..  Office Springfield, VA         --         200     878     3,505          378        4,205         --
8000 Grainger
Court, Building
Five............  Office Springfield, VA         --         366   4,282       966          453        5,161         --
7700 Boston
Boulevard,
Building
Twelve..........  Office Springfield, VA         --       1,105   1,042     8,046        1,105        9,088         --
7500 Boston
Boulevard,
Building Six....  Office Springfield, VA         --         138   3,749       244          273        3,858         --
7501 Boston
Boulevard,
Building Seven..  Office Springfield, VA         --         665     878     8,407          665        9,285         --
7600 Boston
Boulevard,
Building Nine...  Office Springfield, VA         --         127   2,839     1,540          189        4,317         --
Fourteen
Cambridge
Center..........  Office Cambridge, MA           --         110   4,483       569          110        5,052         --
164 Lexington
Road............  Office Billerica, MA           --         592   1,370       131          592        1,501         --
930 Clopper
Road............  Office Gaithersburg, MD        --       1,200   6,506       --         1,200        6,506         --
Sugarland
Building Two....  Office Herndon, VA             --         834   3,216     1,463          834        4,679         --
7374 Boston
Boulevard,
Building Four...  Office Springfield, VA         --         241   1,605       423          303        1,966         --
Sugarland
Building One....  Office Herndon, VA             --         735   2,739     2,577          735        5,316         --
8000 Corporate
Court, Building
Eleven..........  Office Springfield, VA         --         136   3,071       109          214        3,096           6
7451 Boston
Boulevard,
Building Two....  Office Springfield, VA         --         249   1,542     1,430          535        2,686         --
17 Hartwell
Avenue..........  Office Lexington, MA           --          26     150       596           26          746         --
<CAPTION>
                            Accumulated  Year(s) Built/  Depreciable
 Property Name      Total   Depreciation   Renovated    Lives (Years)
 -------------    --------- ------------ -------------- -------------
<S>               <C>       <C>          <C>            <C>
195 West
Street..........      8,884    1,692     1990                (1)
92-100 Hayden
Avenue..........      8,222    2,946     1985                (1)
204 Second
Avenue..........      3,071    1,431     1981/1993           (1)
8 Arlington
Street..........      2,139    2,032     1860-1920/1989      (1)
Carnegie
Center/Tower
One.............    286,250    2,700     1983-1998           (1)
Candler
Building........     61,238      545     1911/1990           (1)
Metropolitan
Square..........    187,133    1,813     1982/1986           (1)
Prudential
Center..........    584,113    5,537     1965/1993           (1)
Reservoir
Place...........    106,228      379     1955/1987           (1)
Embarcadero
Center..........  1,207,719    3,436     1924/1989           (1)
910 Clopper
Road............     17,448      354     1982                (1)
Fullerton
Square..........     14,567      264     1987                (1)
7450 Boston
Boulevard,
Building Three..      5,873       63     1987                (1)
Hilltop Business
Center..........        901    1,305     early 1970's        (1)
7435 Boston
Boulevard,
Building One....      6,187    2,075     1982                (1)
7601 Boston
Boulevard,
Building Eight..      4,583    1,491     1986                (1)
8000 Grainger
Court, Building
Five............      5,614    1,735     1984                (1)
7700 Boston
Boulevard,
Building
Twelve..........     10,193      273     1997                (1)
7500 Boston
Boulevard,
Building Six....      4,131    1,383     1985                (1)
7501 Boston
Boulevard,
Building Seven..      9,950      319     1997                (1)
7600 Boston
Boulevard,
Building Nine...      4,506    1,572     1987                (1)
Fourteen
Cambridge
Center..........      5,162    1,814     1983                (1)
164 Lexington
Road............      2,093      115     1982                (1)
930 Clopper
Road............      7,706      149     1989                (1)
Sugarland
Building Two....      5,513      162     1986/1997           (1)
7374 Boston
Boulevard,
Building Four...      2,269      768     1984                (1)
Sugarland
Building One....      6,051      321     1985/1997           (1)
8000 Corporate
Court, Building
Eleven..........      3,316      825     1989                (1)
7451 Boston
Boulevard,
Building Two....      3,221    1,717     1982                (1)
17 Hartwell
Avenue..........        772      463     1968                (1)
</TABLE>    
 
                                      F-22
<PAGE>
 
                            BOSTON PROPERTIES,INC.
 
             SCHEDULE 3--REAL ESTATE AND ACCUMULATED DEPRECIATION
                               December 31, 1998
                            (dollars in thousands)
 
<TABLE>   
<CAPTION>
                                                                               Costs
                                                                            Capitalized                           Development
                                                                            Subsequent                                and
                                                                                to        Land and   Building and Construction
 Property Name       Type         Location      Encumbrances Land  Building Acquisition Improvements Improvements in Progress
 -------------    ----------- ----------------- ------------ ----- -------- ----------- ------------ ------------ ------------
<S>               <C>         <C>               <C>          <C>   <C>      <C>         <C>          <C>          <C>
7375 Boston
Boulevard,
Building Ten....  Office      Springfield, VA         --        23   2,685       627           47        3,288          --
2391 West Winton
Avenue..........  Industrial  Hayward, CA             --       182   1,217       606          182        1,823          --
40-46 Harvard
Street..........  Industrial  Westwood, MA            --       351   1,782     1,327          351        3,109          --
38 Cabot
Boulevard.......  Industrial  Bucks County, PA        --       329   1,238     2,037          329        3,275          --
6201 Columbia
Park Road,
Building Two....  Industrial  Landover, MD            --       505   2,746     1,146          960        3,437          --
2000 South Club
Drive, Building
Three...........  Industrial  Landover, MD            --       465   2,125       729          859        2,460          --
25-33 Dartmouth
Street..........  Industrial  Westwood, MA            --       273   1,596       495          273        2,091          --
1950 Stanford
Court, Building
One.............  Industrial  Landover, MD            --       269   1,554       196          350        1,669          --
560 Forbes
Boulevard.......  Industrial  San Francisco, CA       --        48     435       262           48          697          --
430 Rozzi
Place...........  Industrial  San Francisco, CA       --        24     217       119           24          336          --
Long Wharf
Marriott........  Hotel       Boston, MA              --     1,752  31,904     8,535        1,752       40,439          --
Cambridge Center
Marriott........  Hotel       Cambridge, MA           --       478  37,918     4,018          478       41,936          --
Cambridge Center
North Garage....  Garage      Cambridge, MA           --     1,163  11,633         8        1,163       11,641          --
1301 New York
Ave.............  Development Washington, DC       24,965    9,250  18,750     4,155        9,250       18,750        4,155
Cambridge Master
Plan............  Development Cambridge, MA           --       --      --      3,542        1,117            4        2,421
Virginia Master
Plan............  Development Springfield, VA         --       --      --      1,520          655          175          690
Maryland Master
Plan............  Development Landover, MD            --       --      --        506          464          --            42
Cambridge Center
Eight...........  Development Cambridge, MA           --       --      --     15,937        1,046          --        14,891
181 Spring
Street..........  Development Lexington, MA           --       --      --      9,000        1,685          --         7,315
Residence Inn by
Marriott........  Development Cambridge, MA           --       --      --     22,243          816          --        21,427
Andover Tech
Center..........  Development Andover, MA             --       --      --      5,299        4,300          --           999
200 West
Street..........  Development Waltham, MA             --       --      --     26,278       13,119          --        13,159
Decoverly Four..  Development Rockville, MD           --       --      --      1,749        1,650          --            99
Decoverly Five..  Development Rockville, MD           --       --      --      1,706        1,665          --            41
Decoverly Six...  Development Rockville, MD           --       --      --      2,028        1,979          --            49
Decoverly
Seven...........  Development Rockville, MD           --       --      --      5,067        4,521          --           546
12050 Sunset
Hills Road......  Development Reston, VA              --       --      --      5,415        4,714          --           701
12280 Sunrise
Valley Drive....  Development Reston, VA              --       --      --      3,824        3,593          --           231
Arboretum.......  Development Reston, VA              --       --      --     10,369        2,850          --         7,519
Tower Oaks......  Development Rockville, MD           --       --      --     26,403       24,652          --         1,751
Washingtonian
North...........  Development Gaithersburg, MD        --       --      --     16,834       11,770          --         5,064
Broad Run
Business Park...  Development Loudon County, VA       --       --      --      5,641        5,457          --           184
<CAPTION>
                         Accumulated  Year(s)Built/  Depreciable
 Property Name    Total  Depreciation   Renovated   Lives (Years)
 -------------    ------ ------------ ------------- -------------
<S>               <C>    <C>          <C>           <C>
7375 Boston
Boulevard,
Building Ten....   3,335     1,039    1988               (1)
2391 West Winton
Avenue..........   2,005       972    1974               (1)
40-46 Harvard
Street..........   3,460     2,724    1967/1996          (1)
38 Cabot
Boulevard.......   3,604     2,410    1972/1984          (1)
6201 Columbia
Park Road,
Building Two....   4,397       981    1986               (1)
2000 South Club
Drive, Building
Three...........   3,319       848    1988               (1)
25-33 Dartmouth
Street..........   2,364     1,343    1966/1996          (1)
1950 Stanford
Court, Building
One.............   2,019       537    1986               (1)
560 Forbes
Boulevard.......     745       874    early 1970's       (1)
430 Rozzi
Place...........     360        69    early 1970's       (1)
Long Wharf
Marriott........  42,191    16,685    1982               (1)
Cambridge Center
Marriott........  42,414    12,240    1986               (1)
Cambridge Center
North Garage....  12,804     2,638    1990               (1)
1301 New York
Ave.............  32,155       --     1983/1998          N/A
Cambridge Master
Plan............   3,542         2    Various            N/A
Virginia Master
Plan............   1,520       175    Various            N/A
Maryland Master
Plan............     506       --     Various            N/A
Cambridge Center
Eight...........  15,937       --     Various            N/A
181 Spring
Street..........   9,000       --     Various            N/A
Residence Inn by
Marriott........  22,243       --     1999               (1)
Andover Tech
Center..........   5,299       --     Various            N/A
200 West
Street..........  26,278       --     Various            N/A
Decoverly Four..   1,749       --     Various            N/A
Decoverly Five..   1,706       --     Various            N/A
Decoverly Six...   2,028       --     Various            N/A
Decoverly
Seven...........   5,067       --     Various            N/A
12050 Sunset
Hills Road......   5,415       --     Various            N/A
12280 Sunrise
Valley Drive....   3,824       --     Various            N/A
Arboretum.......  10,369       --     Various            N/A
Tower Oaks......  26,403       --     Various            N/A
Washingtonian
North...........  16,834       --     Various            N/A
Broad Run
Business Park...   5,641       --     Various            N/A
</TABLE>    
 
                                      F-23
<PAGE>
 
                            BOSTON PROPERTIES, INC.
 
             SCHEDULE 3--REAL ESTATE AND ACCUMULATED DEPRECIATION
                               December 31, 1998
                            (dollars in thousands)
 
<TABLE>
<CAPTION>
                                                                              Costs                               Development
                                                                           Capitalized                                and
                                                                          Subsequent to   Land and   Building and Construction
 Property Name      Type      Location   Encumbrances   Land    Building   Acquisition  Improvements Improvements in Progress
 -------------   ----------- ----------- ------------ -------- ---------- ------------- ------------ ------------ ------------
<S>              <C>         <C>         <C>          <C>      <C>        <C>           <C>          <C>          <C>
New Dominion
Tech Park....... Development Herndon, VA         --        --         --       7,830          7,396          --         434
                                          $2,653,581  $946,231 $3,453,231   $482,021     $1,045,628   $3,751,452    $84,403
                                          ==========  ======== ==========   ========     ==========   ==========    =======
<CAPTION>
                            Accumulated  Year (s) Built/  Depreciable
 Property Name     Total    Depreciation    Renovated    Lives (Years)
 -------------   ---------- ------------ --------------- -------------
<S>              <C>        <C>          <C>             <C>
New Dominion
Tech Park.......      7,830        --    Various              N/A
                 $4,881,483   $336,165
                 ========== ============
</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 $4,000,000 and $411,000, respectively.       
 
                                      F-24
<PAGE>
 
                            BOSTON PROPERTIES, INC.
 
                    REAL ESTATE AND ACCUMULATED DEPRECIATION
                               December 31, 1998
                             (dollars in thousands)
 
   A summary of activity for real estate and accumulated depreciation is as
follows:
 
    
<TABLE>
<CAPTION>
                                               1998        1997        1996
                                            ----------  ----------  ----------
<S>                                         <C>         <C>         <C>
Real Estate:
  Balance at the beginning of the year..... $1,754,780  $1,001,537  $  979,493
    Additions to and improvements of real
     estate................................  3,129,121     754,185      28,110
    Write-off of fully depreciated assets..     (2,418)       (942)     (6,066)
                                            ----------  ----------  ----------
  Balance at the end of the year........... $4,881,483  $1,754,780  $1,001,537
                                            ==========  ==========  ==========
Accumulated Depreciation:
  Balance at the beginning of the year..... $  266,987  $  238,469  $  215,303
    Depreciation expense...................     71,596      29,460      29,232
    Write-off of fully depreciated assets..     (2,418)       (942)     (6,066)
                                            ----------  ----------  ----------
  Balance at the end of the year........... $  336,165  $  266,987  $  238,469
                                            ==========  ==========  ==========
</TABLE>      
 
                                      F-25

<PAGE>
 
                                                                   Exhibit 23.1

                      CONSENT OF INDEPENDENT ACCOUNTANTS



    
We consent to the incorporation by reference in the registration statements of
Boston Properties, Inc. on Forms S-3 (File Numbers 333-60219, 333-61799, 333-
68379, 333-69375 and 333-70765) and on Forms S-8 (File Numbers 333-52845 and 
333-70321) of our report dated January 24, 1999, except for Note 16, for which
the date is February 10, 1999, on our audits of the consolidated financial
statements of Boston Properties, Inc. as of December 31, 1998 and 1997, and for
the year ended December 31, 1998 and the period from June 23, 1997 to December
31, 1997 and our audits of the combined financial statements of the Boston
Properties Predecessor Group for the period from January 1, 1997 to June 22,
1997 and for the year ended December 31, 1996, which is included in the Annual
Report on Form 10-K filed on March 31, 1999 and on Form 10-K/A filed on April 5,
1999.       



April 5, 1999







<TABLE> <S> <C>

<PAGE>
 
<ARTICLE> 5
<MULTIPLIER> 1,000
       
<S>                             <C>
<PERIOD-TYPE>                   YEAR
<FISCAL-YEAR-END>                          DEC-31-1998
<PERIOD-START>                             JAN-01-1998
<PERIOD-END>                               DEC-31-1998
<CASH>                                          12,166
<SECURITIES>                                         0
<RECEIVABLES>                                   40,830
<ALLOWANCES>                                         0
<INVENTORY>                                          0
<CURRENT-ASSETS>                                     0
<PP&E>                                       4,917,193
<DEPRECIATION>                                  75,418
<TOTAL-ASSETS>                               5,235,087
<CURRENT-LIABILITIES>                                0
<BONDS>                                              0
                                0
                                          0
<COMMON>                                           635
<OTHER-SE>                                     947,846
<TOTAL-LIABILITY-AND-EQUITY>                 5,235,087
<SALES>                                        487,577
<TOTAL-REVENUES>                               513,847
<CGS>                                                0
<TOTAL-COSTS>                                        0
<OTHER-EXPENSES>                                     0
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                             124,860
<INCOME-PRETAX>                                      0
<INCOME-TAX>                                         0
<INCOME-CONTINUING>                             98,593
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                (5,481)
<CHANGES>                                            0
<NET-INCOME>                                    93,112
<EPS-PRIMARY>                                     1.53
<EPS-DILUTED>                                     1.52
        

</TABLE>


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