Ownership Submission
FORM 4
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940
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(Print or Type Responses)
1. Name and Address of Reporting Person *
SELSAM ROBERT E
  2. Issuer Name and Ticker or Trading Symbol
BOSTON PROPERTIES INC [BXP]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director _____ 10% Owner
__X__ Officer (give title below) _____ Other (specify below)
Senior Vice President
(Last)
(First)
(Middle)
C/O BOSTON PROPERTIES, INC., 599 LEXINGTON AVENUE
3. Date of Earliest Transaction (Month/Day/Year)
11/23/2010
(Street)

NEW YORK, NY 10022
4. If Amendment, Date Original Filed(Month/Day/Year)
6. Individual or Joint/Group Filing(Check Applicable Line)
_X_ Form filed by One Reporting Person
___ Form filed by More than One Reporting Person
(City)
(State)
(Zip)
Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1.Title of Security
(Instr. 3)
2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code
(Instr. 8)
4. Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4 and 5)
5. Amount of Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 3 and 4)
6. Ownership Form: Direct (D) or Indirect (I)
(Instr. 4)
7. Nature of Indirect Beneficial Ownership
(Instr. 4)
Code V Amount (A) or (D) Price
Common Stock, par value $.01 11/23/2010   M   20,000 A $ 32.62 (1) (2) 41,030.4279 (3) D  
Common Stock, par value $.01 11/23/2010   S   20,000 D $ 83.2168 (4) 21,030.4279 D  
Common Stock, par value $.01               800 I By child

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security
(Instr. 3)
2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year) 3A. Deemed Execution Date, if any (Month/Day/Year) 4. Transaction Code
(Instr. 8)
5. Number of Derivative Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4, and 5)
6. Date Exercisable and Expiration Date
(Month/Day/Year)
7. Title and Amount of Underlying Securities
(Instr. 3 and 4)
8. Price of Derivative Security
(Instr. 5)
9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 4)
10. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 4)
11. Nature of Indirect Beneficial Ownership
(Instr. 4)
Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares
Employee Stock Option (right to buy) $ 32.62 (1) (2) 11/23/2010   M     20,000   (5) 01/17/2012 Common Stock 20,000 $ 0 53,699 (1) (2) D  

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
SELSAM ROBERT E
C/O BOSTON PROPERTIES, INC.
599 LEXINGTON AVENUE
NEW YORK, NY 10022
      Senior Vice President  

Signatures

 /s/ Kelli A. DiLuglio, Attorney-in-Fact   11/24/2010
**Signature of Reporting Person Date

Explanation of Responses:

* If the form is filed by more than one reporting person, see Instruction 4(b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1) In (1) October 2005, the issuer paid a special dividend of $2.50 per share of common stock to all stockholders of record as of the close of business on September 30, 2005; (2) January 2007, the issuer paid a special dividend of $5.40 per share of common stock to all stockholders of record as of the close of business on December 29, 2006 and (3) January 2008, the Issuer paid a special dividend of $5.98 per share of common stock to all stockholders of record as of the close of business on December 31, 2007. In connection with these special dividends, the issuer's Board of Directors adjusted all options that were awarded, but not exercised, prior to the ex-dividend date for each special dividend to account for the effect of each special dividend. The number of shares subject to each such option was increased and the exercise price correspondingly decreased such that each option had the same fair value to the holder before and after giving effect to the payment of each special dividend.
(2) Pursuant to the adjustments described in Footnote 1, the number of shares underlying Mr. Selsam's options increased by 2,303 from 63,750 to 66,053 in September 2005; by 3,318 from 66,053 to 69,371 in December 2006 and by 4,328 from 69,371 to 73,699 in December 2007 and the per share exercise price was correspondingly decreased.
(3) Includes 12.3384 shares which the Reporting Person acquired in November 2010 pursuant to the Boston Properties, Inc. Dividend Reinvestment and Stock Purchase Plan.
(4) Represents the weighted average sale price. These shares were sold in multiple transactions at sale prices ranging from $83.1009 to $83.43, inclusive. The reporting person undertakes to provide upon request by the U.S. Securities and Exchange Commission staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares sold at each separate price.
(5) The option vested in three equal annual installments beginning on January 17, 2003.

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