Document:

Boston Properties Deferred Compensation Plan

 EXHIBIT 10.10 
 Boston Properties 
 Deferred Compensation Plan 
 Master Plan Document 
 Amended and Restated Effective as of January 1, 2009 

 Boston Properties 
 Deferred Compensation Plan 
 Master Plan Document 
  

 TABLE OF CONTENTS 
  

					
	 	  	 	  	Page
	 Purpose
	  		  	1
			
	 ARTICLE 1
	  	Definitions	  	1
			
	 ARTICLE 2
	  	Selection, Enrollment, Eligibility	  	4
			
	 2.1
	  	Selection by Compensation Committee	  	4
	 2.2
	  	Enrollment Requirements	  	4
	 2.3
	  	Eligibility; Commencement of Participation	  	4
	 2.4
	  	Termination of Participation and/or Deferrals	  	5
			
	 ARTICLE 3
	  	Deferral Commitments/ 401(k) Restoration Matching Amounts/Vesting/Crediting/Taxes	  	5
			
	 3.1
	  	Minimum Deferrals	  	5
	 3.2
	  	Maximum Deferral	  	5
	 3.3
	  	Election to Defer; Effect of Election Form	  	5
	 3.4
	  	Withholding of Annual Deferral Amounts	  	6
	 3.5
	  	Annual 401(k) Restoration Matching Amount	  	6
	 3.6
	  	Vesting	  	7
	 3.7
	  	Crediting/Debiting of Account Balances	  	7
	 3.8
	  	FICA and Other Taxes	  	8
			
	 ARTICLE 4
	  	Short-Term Payout; Withdrawal Election	  	8
			
	 4.1
	  	Short-Term Payout	  	8
	 4.2
	  	Other Benefits Take Precedence Over Short-Term	  	9
	 4.3
	  	Withdrawal Election	  	9
			
	 ARTICLE 5
	  	Retirement Benefit	  	9
			
	 5.1
	  	Retirement Benefit	  	9
	 5.2
	  	Payment of Retirement Benefit	  	9
	 5.3
	  	Death Prior to Completion of Retirement Benefit	  	10
			
	 ARTICLE 6
	  	Pre-Retirement Survivor Benefit	  	10
			
	 6.1
	  	Pre-Retirement Survivor Benefit	  	10
	 6.2
	  	Payment of Pre-Retirement Survivor Benefit	  	10
			
	 ARTICLE 7
	  	Termination Benefit	  	10
			
	 7.1
	  	Termination Benefit	  	10
	 7.2
	  	Payment of Termination Benefit	  	10
			
	 ARTICLE 8
	  	Beneficiary Designation	  	11
			
	 8.1
	  	Beneficiary	  	11

  

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 Deferred Compensation Plan 
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	 8.2
	  	Beneficiary Designation; Change; Spousal Consent	  	11
	 8.3
	  	Acknowledgement	  	11
	 8.4
	  	No Beneficiary Designation	  	11
	 8.5
	  	Doubt as to Beneficiary	  	11
	 8.6
	  	Discharge of Obligations	  	11
			
	 ARTICLE 9
	  	Leave of Absence	  	11
			
	 9.1
	  	Paid Leave of Absence	  	11
	 9.2
	  	Unpaid Leave of Absence	  	12
			
	 ARTICLE 10
	  	Termination, Amendment or Modification	  	12
			
	 10.1
	  	Termination	  	12
	 10.2
	  	Amendment	  	12
	 10.3
	  	Delegation to Benefits Committee	  	12
	 10.4
	  	Effect of Payment	  	12
			
	 ARTICLE 11
	  	Administration	  	13
			
	 11.1
	  	Benefits Committee Duties	  	13
	 11.2
	  	Agents	  	13
	 11.3
	  	Binding Effect of Decisions	  	13
	 11.4
	  	Indemnity of Benefits Committee	  	13
	 11.5
	  	Sponsor Information	  	13
			
	 ARTICLE 12
	  	Other Benefits and Agreements	  	13
			
	 12.1
	  	Coordination with Other Benefits	  	13
			
	 ARTICLE 13
	  	Claims Procedures	  	14
			
	 13.1
	  	Presentation of Claim	  	14
	 13.2
	  	Notification of Decision	  	14
	 13.3
	  	Review of a Denied Claim	  	14
	 13.4
	  	Decision on Review	  	14
	 13.5
	  	Legal Action	  	15
			
	 ARTICLE 14
	  	Trust	  	15
			
	 14.1
	  	Establishment of the Trust	  	15
	 14.2
	  	Interrelationship of the Plan and the Trust	  	15
	 14.3
	  	Distributions From the Trust	  	15
			
	 ARTICLE 15
	  	Miscellaneous	  	15
			
	 15.1
	  	Status of Plan	  	15
	 15.2
	  	Unsecured General Creditor	  	15
	 15.3
	  	Sponsor’s Liability	  	15
	 15.4
	  	Nonassignability	  	15

  

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 Deferred Compensation Plan 
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	 15.5
	  	Not a Contract of Employment	  	16
	 15.6
	  	Furnishing Information	  	16
	 15.7
	  	Terms	  	16
	 15.8
	  	Captions	  	16
	 15.9
	  	Governing Law	  	16
	 15.10
	  	Notice	  	16
	 15.11
	  	Successors	  	17
	 15.12
	  	Spouse’s Interest	  	17
	 15.13
	  	Validity	  	17
	 15.14
	  	Incompetent	  	17
	 15.15
	  	Court Order	  	17
	 15.16
	  	Insurance	  	17

  

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 Deferred Compensation Plan 
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 BOSTON PROPERTIES 
 DEFERRED COMPENSATION PLAN 
 Amended and Restated Effective as of January 1, 2009 
 Purpose 
 WHEREAS, the purpose
of this Plan is to provide specified benefits to a select group of management or highly compensated Employees who contribute materially to the continued growth, development and future business success of Boston Properties Limited Partnership. This
Plan shall be unfunded for tax purposes and for purposes of Title I of ERISA. 
 WHEREAS, the Sponsor desires to amend and restate the Plan
to comply with Section 409A of the Code; 
 WHEREAS, the Plan provides that the Sponsor may amend the Plan at any time. 
 NOW, THEREFORE, the Sponsor hereby amends and restates the Plan as follows, effective as of January 1, 2009. 
 ARTICLE 1 
 Definitions 

 For the purposes of this Plan, unless otherwise clearly apparent from the context, the following phrases or terms shall have the following
indicated meanings: 
  

	1.1	“Account Balance” shall mean, with respect to a Participant, a credit on the records of the Sponsor equal to the sum of (i) the Deferral Account balance and
(ii) the 401(k) Restoration Matching Account balance. The Account Balance, and each other specified account balance, shall be a bookkeeping entry only and shall be utilized solely as a device for the measurement and determination of the amounts
to be paid to a Participant, or his or her designated Beneficiary, pursuant to this Plan. A “Pre-2005 Account” shall mean the amount standing to the credit of a Participant’s Account Balance as of December 31, 2004, as adjusted
for deemed investment earnings, losses and distributions. A “Post-2004 Account” shall mean the amount credited to a Participant’s Account Balance after January 1, 2005, as adjusted for deemed investment earnings, losses and
distributions. 

  

	1.2	“Annual Bonus” shall mean any compensation, in addition to Base Annual Salary, payable during the Plan Year to a Participant as an Employee under the Sponsor’s annual
bonus and cash incentive plans, excluding stock options and restricted stock, which the Benefits Committee, in its sole discretion, determines to be eligible for deferral under this Plan. 

  

	1.3	“Annual Deferral Amount” shall mean that portion of a Participant’s Base Annual Salary and Annual Bonus that a Participant defers in accordance with Article 3
for any one Plan Year. In the event of a Participant’s Retirement, death or a Separation from Service prior to the end of a Plan Year, such year’s Annual Deferral Amount shall be the actual amount withheld prior to such event.

  

	1.4	“Annual 401(k) Restoration Matching Amount” for any one Plan Year shall be the amount determined in accordance with Section 3.5. 

  

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	1.5	“Annual Installment Method” shall be an annual installment payment over the number of years selected by the Participant in accordance with this Plan, calculated as
follows: (i) for the first annual installment, the Account Balance of the Participant shall be calculated as of the close of business on or around the last business day of the Plan Year in which the Participant Retires and (ii) for
remaining annual installments, the Account Balance of the Participant shall be calculated on every applicable anniversary of the last business day of the Plan Year in which the Participant Retired. The annual installment shall be calculated by
multiplying this balance by a fraction, the numerator of which is one and the denominator of which is the remaining number of annual payments due the Participant. By way of example, if the Participant elects a ten (10) year Annual Installment
Method, the first payment shall be 1/10 of the Account Balance, calculated as described in this definition. The following year, the payment shall be 1/9 of the Account Balance, calculated as described in this definition. The first annual installment
payment shall be paid no later than fifteen (15) days after the last day of the Plan Year in which the Participant Retires. Remaining annual installments shall be paid no later than fifteen (15) days after the last day of the applicable
Plan Year. 

  

	1.6	“Base Annual Salary” shall mean the annual cash compensation included on the Federal Income Tax Form W-2 for such calendar year, excluding bonuses, commissions, overtime,
fringe benefits, stock options, restricted stock, relocation expenses, incentive payments, non-monetary awards, directors fees and other fees, and automobile and other allowances paid to a Participant for employment services rendered (whether or not
such allowances are included in the Employee’s gross income). Base Annual Salary shall be calculated before reduction for compensation voluntarily deferred or contributed by the Participant pursuant to all qualified or non-qualified plans of
the Sponsor and shall be calculated to include amounts not otherwise included in the Participant’s gross income under Code Sections 125, 132(f), 402(e)(3), 402(h), or 403(b) pursuant to plans established by the Sponsor; provided, however, that
all such amounts will be included in compensation only to the extent that had there been no such plan, the amount would have been payable in cash to the Employee. 

  

	1.7	“Beneficiary” shall mean one or more persons, trusts, estates or other entities, designated in accordance with Article 8, that are entitled to receive benefits under
this Plan upon the death of a Participant. 

  

	1.8	“Beneficiary Designation Form” shall mean the form established from time to time by the Benefits Committee that a Participant completes, signs and returns to the Benefits
Committee to designate one or more Beneficiaries. 

  

	1.9	“Benefits Committee” shall mean the committee described in Article 11. 

  

	1.10	“Claimant” shall have the meaning set forth in Section 13.1. 

  

	1.11	“Code” shall mean the Internal Revenue Code of 1986, as it may be amended from time to time. 

  

	1.12	“Compensation Committee” shall mean the Compensation Committee of the Board of Directors of Boston Properties, Inc. 

  

	1.13	“Deferral Account” shall mean (i) the sum of all of a Participant’s Annual Deferral Amounts, plus (ii) amounts credited in accordance with all the
applicable crediting and debiting provisions of this Plan that relate to the Participant’s Deferral Account, less (iii) all distributions made to the Participant or his or her Beneficiary pursuant to this Plan that relate to his or her
Deferral Account. 

  

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 Deferred Compensation Plan 
 Master Plan Document 
  

	1.14	“Election Form” shall mean the form established from time to time by the Benefits Committee that a Participant completes, signs and returns to the Benefits Committee to
make an election under the Plan. 

  

	1.15	“Employee” shall mean a person who is an employee of the Sponsor or an affiliate of the Sponsor. 

  

	1.16	“ERISA” shall mean the Employee Retirement Income Security Act of 1974, as it may be amended from time to time. 

  

	1.17	“First Plan Year” shall mean the period beginning March 1, 2002 and ending December 31, 2002. 

  

	1.18	“401(k) Plan” shall be the Boston Properties Retirement Savings Plan as in effect from time to time. 

  

	1.19	“401(k) Restoration Matching Account” shall mean (i) the sum of all of a Participant’s Annual 401(k) Restoration Matching Amounts, plus (ii) amounts
credited in accordance with all the applicable crediting and debiting provisions of this Plan that relate to the Participant’s 401(k) Restoration Matching Account, less (iii) all distributions made to the Participant or his or her
Beneficiary pursuant to this Plan that relate to the Participant’s 401(k) Restoration Matching Account. 

  

	1.20	“Participant” shall mean any Employee (i) who is selected to participate in the Plan, (ii) who elects to participate in the Plan, (iii) who signs an
Election Form and a Beneficiary Designation Form, (iv) whose signed Election Form and Beneficiary Designation Form are accepted by the Benefits Committee, (v) who commences participation in the Plan, and (vi) whose participation in
the Plan has not terminated. A spouse or former spouse of a Participant shall not be treated as a Participant in the Plan or have an account balance under the Plan, even if he or she has an interest in the Participant’s benefits under the Plan
as a result of applicable law or property settlements resulting from legal separation or divorce. 

  

	1.21	“Plan” shall mean the Boston Properties Deferred Compensation Plan, which shall be evidenced by this instrument, as it may be amended from time to time.

  

	1.22	“Plan Year” shall, except for the First Plan Year, mean a period beginning on January 1 of each calendar year and continuing through December 31 of such calendar
year. 

  

	1.23	“Pre-Retirement Survivor Benefit” shall mean the benefit set forth in Article 6. 

  

	1.24	“Retirement,” “Retire(s)” or “Retired” shall mean, with respect to an Employee, the date a Separation from Service occurs for any reason other than a
leave of absence or death, on or after the attainment of age fifty-five (55) with five (5) Years of Service. 

  

	1.25	“Retirement Benefit” shall mean the benefit set forth in Article 5. 

  

	1.26	 “Separation from Service” or “Separates from Service” shall mean when the Employee and the Sponsor (or any affiliate thereof) reasonably
anticipate that no further services would be performed by the Employee for such Sponsor (or any affiliate thereof) after a certain date or that 

  

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the level of bona fide services the Employee would perform for the Sponsor (or any affiliate thereof) would permanently decrease to no more than 20 percent
of the average level of bona fide services performed by the Employee for the Sponsor (or any affiliate thereof) over the immediately preceding 36-month period (or period of employment, if less than 36 months). 

  

	1.27	“Short-Term Payout” shall mean the payout set forth in Section 4.1. 

  

	1.29	“Sponsor” shall mean Boston Properties Limited Partnership, a Delaware limited partnership, and any successor to all or substantially all of the Sponsor’s assets or
business. 

  

	1.30	“Termination Benefit” shall mean the benefit set forth in Article 7. 

  

	1.31	“Trust” shall mean one or more trusts, if any, established by the Sponsor in its sole discretion. 

  

	1.32	“Years of Service” shall mean the total number of full years in which a Participant has been employed by the Sponsor (or any affiliate thereof). For purposes of this
definition, a year of employment shall be a 365 day period (or 366 day period in the case of a leap year) that, for the first year of employment, commences on the Employee’s date of hiring and that, for any subsequent year, commences on an
anniversary of that hiring date. The Benefits Committee shall make a determination as to whether any partial year of employment shall be counted as a Year of Service. 

 ARTICLE 2 
 Selection, Enrollment, Eligibility 
  

	2.1	Selection by Compensation Committee. Participation in the Plan shall be limited to a select group of management and highly compensated Employees of the Sponsor, as
determined by the Compensation Committee in its sole discretion. From that group, the Compensation Committee shall select, in its sole discretion, Employees to participate in the Plan. 

  

	2.2	Enrollment Requirements. As a condition to participation, each selected Employee shall complete, execute and return to the Benefits Committee an Election Form and a
Beneficiary Designation Form, all within thirty (30) days after he or she is selected to participate in the Plan. In addition, the Benefits Committee shall establish from time to time such other enrollment requirements as it determines in its
sole discretion are necessary. 

  

	2.3	Eligibility; Commencement of Participation. Provided an Employee selected to participate in the Plan has met all enrollment requirements set forth in this Plan and
required by the Benefits Committee, including returning all required documents to the Benefits Committee within the specified time period, that Employee shall commence participation in the Plan on the first day of the month following the month in
which the Employee completes all enrollment requirements, provided that such Employee has not previously been eligible to participate in any other account balance deferred compensation plan of the Sponsor. If an Employee fails to meet all such
requirements within the period required, in accordance with Section 2.2, that Employee shall not be eligible to participate in the Plan until the first day of the Plan Year following the delivery to and acceptance by the Benefits Committee of
the required documents. 

  

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	2.4	Termination of Participation and/or Deferrals. If the Compensation Committee determines in good faith that a Participant no longer qualifies as a member of a select
group of management or highly compensated employees, as membership in such group is determined in accordance with Sections 201(2), 301(a)(3) and 401(a)(1) of ERISA, the Compensation Committee shall have the right, in its sole discretion, to
prevent the Participant from making future deferral elections. 

 ARTICLE 3 
 Deferral Commitments/401(k) Restoration Matching Amounts/Vesting/Crediting/Taxes 
  

	3.1	Minimum Deferrals. 

  

	 	(a)	Annual Deferral Amount. For each Plan Year, a Participant may elect to defer, as his or her Annual Deferral Amount, an aggregate minimum of $2,000 of Base Annual
Salary and Annual Bonus. If an election is made for less than stated minimum amounts, or if no election is made, the amount deferred shall be zero. 

  

	 	(b)	Short Plan Year. Notwithstanding the foregoing, if a Participant first becomes a Participant after the first day of a Plan Year, the minimum Annual Deferral Amount
shall be an amount equal to the minimum set forth above, multiplied by a fraction, the numerator of which is the number of complete months remaining in the Plan Year and the denominator of which is 12. 

  

	3.2	Maximum Deferral. 

  

	 	(a)	Base Annual Salary and Annual Bonus. For each Plan Year, a Participant may elect to defer, as his or her Annual Deferral Amount, Base Annual Salary and Annual Bonus up
to the maximum percentages established by the Benefits Committee from time to time. The Benefits Committee may impose additional limitations on any Participant’s Annual Deferral Amount in any Plan Year in which the Benefits Committee
determines, in its sole discretion, that such additional limitation is in the best interests of the Sponsor. 

  

	 	(b)	Short Plan Year. Notwithstanding the foregoing, if an Employee first becomes a Participant after the first day of a Plan Year, the maximum Annual Deferral Amount
(i) with respect to Base Annual Salary shall be limited to the amount of compensation not yet earned by the Participant as of the date the Participant submits an Election Form to the Benefits Committee for acceptance, and (ii) with respect
to Annual Bonus shall be limited to those amounts which relate to services the Participant performed after the date the Participant submitted his or her Election Form to participate in the Plan. 

  

	3.3	Election to Defer; Effect of Election Form. 

  

	 	(a)	First Plan Year. In connection with a Participant’s commencement of participation in the Plan, the Participant shall make an irrevocable deferral election for the
Plan Year in which the Participant commences participation in the Plan, along with such other elections as the Benefits Committee deems necessary or desirable under the Plan. For these elections to be valid, the Election Form must be completed and
signed by the Participant, timely delivered to the Benefits Committee (in accordance with Section 2.2 above) and accepted by the Benefits Committee. A Participant shall designate on his or her Election Form whether all amounts deferred in such
Plan Year are payable in the form of installments or in a lump sum upon Retirement and whether or not the Participant desires a Short-Term Payout. Such designation may be changed only to the extent provided in subsection (c) below.

  

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	 	(b)	Subsequent Plan Years. For each succeeding Plan Year, an irrevocable deferral election for that Plan Year, and such other elections as the Benefits Committee deems
necessary or desirable under the Plan, shall be made by timely delivering to the Benefits Committee, in accordance with its rules and procedures, before the end of the Plan Year preceding the Plan Year for which the election is made, a new Election
Form. The Participant shall designate on such Election Form whether or not he or she desires a Short-Term Payout. If no such Election Form is timely delivered for a Plan Year, the Annual Deferral Amount shall be zero for that Plan Year.

  

	 	(c)	Amendment of Distribution Election. A Participant may amend his or her Election Form from time to time, in accordance with this subsection (c). Any such amendment
shall be made in accordance with the procedures established by the Benefits Committee from time to time. With respect to a Participant’s Post-2004 Account, a Participant may elect to delay the time when payments from his or her Account Balance
would otherwise commence pursuant to his or her Election Form, provided that such election (i) will not be effective until twelve (12) months after the date the election to change is made, (ii) the payment is deferred for at least
five (5) years from the date the payment would otherwise be paid (or commence to be paid if paid in installments), and (iii) the election is made at least thirteen (13) months before the date payment is scheduled to be paid (or
commence to be paid in installments). With respect to a Participant’s Pre-2005 Account, a Participant may elect to delay the time when payments from his or her Account Balance would otherwise commence pursuant to his or her existing election
and/or change the form of payment applicable to such Pre-2005 Account pursuant to his or her existing election, provided that any such change shall not be given effect unless thirteen (13) months pass between the date on which such election is
submitted to the Benefits Committee and the distribution date designated in such election form occurs. 

  

	3.4	Withholding of Annual Deferral Amounts. For each Plan Year, the Base Annual Salary portion of the Annual Deferral Amount shall be withheld from each regularly
scheduled Base Annual Salary payroll in equal amounts, as adjusted from time to time for increases and decreases in Base Annual Salary to the extent the Annual Deferral Amount is denominated as a percentage of Base Annual Salary. The Annual Bonus
portion of the Annual Deferral Amount shall be withheld at the time the Annual Bonus is or otherwise would be paid to the Participant, whether or not this occurs during the Plan Year itself. 

  

	3.5	Annual 401(k) Restoration Matching Amount. For each Plan Year during which a Participant participates in the Sponsor’s 401(k) Plan and the Sponsor makes a
matching contribution to such 401(k) Plan, the Sponsor shall credit a Participant’s Annual 401(k) Restoration Matching Account under this Plan with an amount equal to the difference between (i) the amount the Sponsor contributed to the
401(k) Plan on behalf of such Participant during the Plan Year, and (ii) the amount that the Sponsor would have contributed to the 401(k) Plan on behalf of such Participant during such plan year had any deferrals of Base Annual Salary under
this Plan been considered compensation under the 401(k) Plan, subject to the compensation limit under Section 401(a)(17) of the Code. The amount credited as a Participant’s Annual 401(k) Restoration Matching Amount for any Plan Year under
this Section 3.5 shall be credited to the Participant’s 401(k) Restoration Matching Account on a date or dates to be determined by the Benefits Committee in its sole discretion. 

  

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	3.6	Vesting. A Participant shall at all times be 100% vested in his or her Deferral Account and 401(k) Restoration Matching Account. 

  

	3.7	Crediting/Debiting of Account Balances. In accordance with, and subject to, the rules and procedures that are established from time to time by the Benefits Committee,
in its sole discretion, amounts shall be credited or debited to a Participant’s Account Balance in accordance with the following rules: 

  

	 	(a)	Measurement Funds. The Participant may elect one or more of the measurement funds (the “Measurement Funds”), based on certain mutual funds or other
investment indices, for the purpose of crediting or debiting additional amounts to his or her Account Balance. At the beginning of each Plan Year, the Benefits Committee shall provide the Participant with a list of Measurement Funds available. As
necessary, the Benefits Committee may, in its sole discretion, discontinue, substitute or add a Measurement Fund. 

  

	 	(b)	Election of Measurement Funds. A Participant, in connection with his or her initial deferral election in accordance with Section 3.3(a) above, shall elect, on the
Election Form, one or more Measurement Fund(s) (as described in Section 3.7(a) above) to be used to determine the amounts to be credited or debited to his or her Account Balance. The Participant may (but is not required to) subsequently elect
at any time, by submitting an Election Form (or other form of communication) to the Benefits Committee that is accepted by the Benefits Committee, to add or delete one or more Measurement Fund(s) to be used to determine the amounts to be credited or
debited to his or her Account Balance, or to change the portion of his or her Account Balance allocated to each previously or newly elected Measurement Fund. If, in accordance with the previous sentence, an election is on any business day prior to
4:00 p.m. Eastern Standard Time, it shall be effective as of the day on which such election is made and shall continue thereafter for each subsequent day in which the Participant participates in the Plan, unless changed in accordance with this
Section 3.7(b). If such election is made on any business day after 4:00 p.m. Eastern Standard Time or on any non-business day, it shall be effective as of the first business day following the day on which such election is made and shall
continue thereafter for each subsequent day in which the Participant participates in the Plan, unless changed in accordance with this Section 3.7(b). 

  

	 	(c)	Proportionate Allocation. In making any election described in Section 3.7(b) above, the Participant shall specify on the Election Form (or such other form of
communication acceptable to the Committee), in increments of one percent (1%), the percentage of his or her Account Balance to be allocated to a Measurement Fund (as if the Participant was making an investment in that Measurement Fund with that
portion of his or her Account Balance). 

  

	 	(d)	 Crediting or Debiting Method. The performance of each elected Measurement Fund (either positive or negative) will be determined by the Benefits
Committee, in its reasonable discretion, based on the performance of the Measurement Funds themselves. 

  

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A Participant’s Account Balance shall be credited or debited on a daily basis, if possible, based on the performance of each Measurement Fund selected
by the Participant, such performance being determined by the Benefits Committee in its sole discretion. 

  

	 	(e)	No Actual Investment. Notwithstanding any other provision of this Plan that may be interpreted to the contrary, the Measurement Funds are to be used for measurement
purposes only, and a Participant’s election of any such Measurement Fund, the allocation to his or her Account Balance thereto, the calculation of additional amounts and the crediting or debiting of such amounts to a Participant’s Account
Balance shall not be considered or construed in any manner as an actual investment of his or her Account Balance in any such Measurement Fund. In the event that the Sponsor or the Trustee (as that term is defined in the Trust), in its
own discretion, decides to invest in any of the investments on which the Measurement Funds are based, no Participant shall have any rights in or to such investments themselves. Without limiting the foregoing, a Participant’s Account Balance
shall at all times be a bookkeeping entry only and shall not represent any investment made on his or her behalf by the Sponsor or the Trust; the Participant shall at all times remain an unsecured creditor of the Sponsor. 

  

	3.8	FICA and Other Taxes. 

  

	 	(a)	Annual Deferral Amounts. For each Plan Year in which an Annual Deferral Amount is being withheld from a Participant, the Sponsor shall withhold from that portion of
the Participant’s Base Annual Salary and Annual Bonus that is not being deferred, in a manner determined by the Sponsor, the Participant’s share of FICA and other employment taxes on such Annual Deferral Amount. If necessary, the Benefits
Committee may reduce the Annual Deferral Amount in order to comply with this Section 3.8. 

  

	 	(b)	401(k) Restoration Matching Account. When the Sponsor credits an Annual 401(k) Restoration Matching Amount to a Participant’s 401(k) Restoration Matching Account,
the Sponsor shall withhold from the Participant’s Base Annual Salary and Annual Bonus, as applicable, that is not deferred, in a manner determined by the Sponsor, the Participant’s share of FICA and other employment taxes. If necessary,
the Benefits Committee may reduce the Participant’s Annual 401(k) Restoration Matching Amount in order to comply with this Section 3.8. 

  

	 	(c)	Distributions. The Sponsor, or the trustee of the Trust, shall withhold from any payments made to a Participant under this Plan all federal, state and local income,
employment and other taxes required to be withheld by the Sponsor, or the trustee of the Trust, in connection with such payments, in amounts and in a manner to be determined in the sole discretion of the Sponsor and the trustee of the Trust.

 ARTICLE 4 
 Short-Term Payout; Withdrawal Election 
  

	4.1	 Short-Term Payout. In connection with each election to defer an Annual Deferral Amount, a Participant may irrevocably elect to receive a future
“Short-Term Payout” from the Plan with respect to all or a portion of such Annual Deferral Amount. The Short-Term Payout shall be a 

  

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lump sum payment in an amount that is equal to the portion of the Annual Deferral Amount the Participant elected to have distributed as a Short-Term Payout
plus amounts credited or debited in the manner provided in Section 3.7 above on that amount, calculated as of the close of business on or around the date on which the Short-Term Payout becomes payable, as determined by the Benefits Committee in
its sole discretion. Subject to the other terms and conditions of this Plan, each Short-Term Payout elected shall be paid out during a fifteen (15) day period commencing immediately after the first day of any Plan Year designated by the
Participant. The Plan Year designated by the Participant must be at least five Plan Years after the end of the Plan Year in which the Annual Deferral Amount is actually deferred. By way of example, if a five year Short-Term Payout is elected for
Annual Deferral Amounts that are deferred in the Plan Year commencing January 1, 2002, the five year Short-Term Payout would become payable during a fifteen (15) day period commencing January 1, 2008. 

  

	4.2	Other Benefits Take Precedence Over Short-Term. Should an event occur that triggers a benefit under Article 5, 6, or 7, any Annual Deferral Amount, plus amounts
credited or debited thereon, that is subject to a Short-Term Payout election under Section 4.1 shall not be paid in accordance with Section 4.1 but shall be paid in accordance with the other applicable Article. 

  

	4.3	Withdrawal Election. A Participant may elect, at any time, to withdraw all or any portion of his or her Pre-2005 Account Balance. For purposes of this
Section 4.3, the value of a Participant’s Account Balance shall be calculated as of the close of business on or around the date the Participant’s benefit distribution is processed, as determined by the Benefits Committee, in its sole
discretion, less a withdrawal penalty equal to 10% of such amount (the net amount shall be referred to as the “Withdrawal Amount”). This election can be made at any time, before or after Retirement, death or Separation from Service, and
whether or not the Participant (or Beneficiary) is in the process of being paid pursuant to an installment payment schedule. The Participant (or his or her Beneficiary) shall make this election by giving the Benefits Committee advance written notice
of the election in a form determined from time to time by the Benefits Committee. The Participant (or his or her Beneficiary) shall be paid the Withdrawal Amount within fifteen (15) days of his or her election. Once the Withdrawal Amount is
paid, the Participant’s participation in the Plan shall be suspended for the immediately following Plan Year. 

 ARTICLE
5 
 Retirement Benefit 
  

	5.1	Retirement Benefit. A Participant who Retires shall receive, as a Retirement Benefit, his or her Account Balance calculated as of the close of business on or around
the date the Participant’s benefit distribution is processed, as determined by the Benefits Committee in its sole discretion. 

  

	5.2	 Payment of Retirement Benefit. A Participant, in connection with his or her commencement of participation in the Plan, shall elect on an Election Form
to receive the Retirement Benefit in a lump sum or pursuant to an Annual Installment Method of up to 15 years. The Participant may, pursuant to the provisions of Section 3.3(c), change his or her election to an allowable alternative payout
period by submitting a new Election Form to the Benefits Committee. If a Participant does not make any election with respect to the payment of the Retirement Benefit, or if the Participant’s Account Balance on the date of the Participant’s
Retirement is less than $25,000, then such benefit shall be payable in a lump sum. With respect to the Participant’s Pre-2005 

  

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Account, the lump sum payment shall be made, or installment payments shall commence, during the first fifteen (15) day period after the last day of the
Plan Year in which the Participant Retires. With respect to the Participant’s Post-2004 Account, the lump sum payment shall be made, or installments shall commence, during the first fifteen (15) day period after the last day of the Plan
Year in which the Participant Retires, or six (6) months after the Participant Retires, if later. 

  

	5.3	Death Prior to Completion of Retirement Benefit. If a Participant dies after Retirement but before the Retirement Benefit is paid in full, the Participant’s
Beneficiary shall receive a lump sum payment that is equal to the Participant’s unpaid remaining Account Balance calculated as of the close of business on or around the date the benefit distribution is processed, as determined by the Benefits
Committee in its sole discretion. The lump sum payment shall be made no later than fifteen (15) days after the Benefits Committee is provided with proof that is satisfactory to the Benefits Committee of the Participant’s death.

 ARTICLE 6 
 Pre-Retirement Survivor Benefit 
  

	6.1	Pre-Retirement Survivor Benefit. If the Participant dies before he or she Retires or experiences a Separation from Service, the Participant’s Beneficiary shall
receive a Pre-Retirement Survivor Benefit equal to the Participant’s Account Balance calculated as of the close of business on or around the date the benefit distribution is processed, as determined by the Benefits Committee in its sole
discretion. 

  

	6.2	Payment of Pre-Retirement Survivor Benefit. The Pre-Retirement Survivor Benefit shall be paid to the Participant’s Beneficiary in a lump sum payment no later than
fifteen (15) days after the Benefits Committee is provided with proof that is satisfactory to the Benefits Committee of the Participant’s death. 

 ARTICLE 7 
 Termination Benefit 
  

	7.1	Termination Benefit. If a Participant experiences a Separation from Service prior to his or her Retirement or death, the Participant shall receive a Termination
Benefit, which shall be equal to the Participant’s Account Balance calculated as of the close of business on or around the date the benefit distribution is processed, as determined by the Benefits Committee in its sole discretion.

  

	7.2	Payment of Termination Benefit. With respect to the Participant’s Pre-2005 Account, the Participant shall receive his or her Termination Benefit in a lump sum
payment during the first fifteen (15) day period after the last day of the Plan Year in which the Participant experiences the Separation from Service. With respect to the Participant’s Post-2004 Account, the Participant shall receive his
or her Termination Benefit in a lump sum during the first fifteen (15) day period after the last day of the Plan Year in which the Participant experiences the Separation from Service, or six (6) months after the Participant’s
Separation from Service, whichever is later. 

  

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 ARTICLE 8 
 Beneficiary Designation 
  

	8.1	Beneficiary. Each Participant shall have the right, at any time, to designate his or her Beneficiary(ies) (both primary as well as contingent) to receive any benefits
payable under the Plan to a beneficiary upon the death of a Participant. The Beneficiary designated under this Plan may be the same as or different from the Beneficiary designation under any other plan of the Sponsor in which the Participant
participates. 

  

	8.2	Beneficiary Designation; Change; Spousal Consent. A Participant shall designate his or her Beneficiary by completing and signing the Beneficiary Designation Form, and
returning it to the Benefits Committee or its designated agent. A Participant shall have the right to change a Beneficiary by completing, signing and otherwise complying with the terms of the Beneficiary Designation Form and the Benefits
Committee’s rules and procedures, as in effect from time to time. If the Participant resides in a community property state and names someone other than his or her spouse as a Beneficiary, a spousal consent, in the form designated by the
Benefits Committee, must be signed by that Participant’s spouse and returned to the Benefits Committee. Upon the acceptance by the Benefits Committee of a new Beneficiary Designation Form, all Beneficiary designations previously filed shall be
canceled. The Benefits Committee shall be entitled to rely on the last Beneficiary Designation Form filed by the Participant and accepted by the Benefits Committee prior to his or her death. 

  

	8.3	Acknowledgment. No designation or change in designation of a Beneficiary shall be effective until received and acknowledged in writing by the Benefits Committee or its
designated agent. 

  

	8.4	No Beneficiary Designation. If a Participant fails to designate a Beneficiary as provided in Sections 8.1, 8.2 and 8.3 above or, if all designated Beneficiaries
predecease the Participant or die prior to complete distribution of the Participant’s benefits, then the Participant’s designated Beneficiary shall be deemed to be his or her surviving spouse. If the Participant has no surviving spouse,
the benefits remaining under the Plan to be paid to a Beneficiary shall be payable to the executor or personal representative of the Participant’s estate. 

  

	8.5	Doubt as to Beneficiary. If the Benefits Committee has any doubt as to the proper Beneficiary to receive payments pursuant to this Plan, the Benefits Committee shall
have the right, exercisable in its discretion, to cause the Sponsor to withhold such payments until this matter is resolved to the Benefits Committee’s satisfaction. 

  

	8.6	Discharge of Obligations. The payment of benefits under the Plan to a Beneficiary shall fully and completely discharge the Sponsor and the Benefits Committee from all
further obligations under this Plan with respect to the Participant, and that Participant’s participation in the Plan shall terminate upon such full payment of benefits. 

 ARTICLE 9 
 Leave of Absence 
  

	9.1	Paid Leave of Absence. If a Participant is authorized by the Sponsor for any reason to take a paid leave of absence from the employment of the Sponsor, the Participant
shall continue to be considered employed by the Sponsor and the Annual Deferral Amount shall continue to be withheld during such paid leave of absence in accordance with Section 3.3. 

  

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	9.2	Unpaid Leave of Absence. If a Participant is authorized by the Sponsor for any reason to take an unpaid leave of absence from the employment of the Sponsor, the
Participant shall continue to be considered employed by the Sponsor and the Participant shall be excused from making deferrals until the earlier of the date the leave of absence expires or the Participant returns to a paid employment status. Upon
such expiration or return, deferrals shall resume for the remaining portion of the Plan Year in which the expiration or return occurs, based on the deferral election, if any, made for that Plan Year. If no election was made for that Plan Year, no
deferral shall be withheld. 

 ARTICLE 10 
 Termination, Amendment or Modification 
  

	10.1	Termination. Although the Sponsor anticipates that it will continue the Plan for an indefinite period of time, there is no guarantee that the Sponsor will continue the
Plan or will not terminate the Plan at any time in the future. Accordingly, the Sponsor reserves the right to discontinue its sponsorship of the Plan and/or to terminate the Plan at any time with respect to any or all of its participating Employees.
The termination of the Plan shall not reduce the Account Balance of any Participant or Beneficiary in existence as of the date of Plan termination. Further, the Sponsor may not accelerate payments under the Plan on account of Plan termination except
to the extent permitted by Section 409A of the Code and the regulations promulgated thereunder. 

  

	10.2	Amendment. The Sponsor may, at any time, amend or modify the Plan in whole or in part; provided, however, that no amendment or modification shall be effective to
decrease or restrict the value of a Participant’s Account Balance in existence at the time the amendment or modification is made, calculated as if the Participant had experienced a Separation from Service as of the effective date of the
amendment or modification or, if the amendment or modification occurs after the date upon which the Participant was eligible to Retire, the Participant had Retired as of the effective date of the amendment or modification. The amendment or
modification of the Plan shall not affect any Participant or Beneficiary who has become entitled to the payment of benefits under the Plan as of the date of the amendment or modification. No amendment or modification shall accelerate payments under
the Plan except to the extent permitted by Section 409A of the Code and the regulations promulgated thereunder. 

  

	10.3	Delegation to Benefits Committee. The Sponsor has delegated its rights to act under Sections 10.1 and 10.2 above to the Benefits Committee and the Benefits Committee
shall have the full power to take action under Sections 10.1 and 10.2. 

  

	10.4	Effect of Payment. The full payment of the applicable benefit under Articles 4, 5, 6, or 7 of the Plan shall completely discharge all obligations to a Participant
and his or her designated Beneficiaries under this Plan and the Participant’s participation in the Plan shall terminate. 

  

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 ARTICLE 11 
 Administration 
  

	11.1	Benefits Committee Duties. Except as otherwise provided in this Article 11, this Plan shall be administered by the Benefits Committee of the Sponsor. The Benefits
Committee shall also have the discretion and authority to (i) make, amend, interpret, and enforce all appropriate rules and regulations for the administration of this Plan and (ii) decide or resolve any and all questions including
interpretations of this Plan, as may arise in connection with the Plan. Any individual serving on the Benefits Committee who is a Participant shall not vote or act on any matter relating solely to himself or herself. When making a determination or
calculation, the Benefits Committee shall be entitled to rely on information furnished by a Participant or the Sponsor. 

  

	11.2	Agents. In the administration of this Plan, the Benefits Committee may, from time to time, employ agents and delegate to them such administrative duties as it sees fit
(including acting through a duly appointed representative) and may from time to time consult with counsel who may be counsel to the Sponsor. 

  

	11.3	Binding Effect of Decisions. The decision or action of the Benefits Committee with respect to any question arising out of or in connection with the administration,
interpretation and application of the Plan and the rules and regulations promulgated hereunder shall be final and conclusive and binding upon all persons having any interest in the Plan. 

  

	11.4	Indemnity of Benefits Committee. The Sponsor shall indemnify and hold harmless the members of the Benefits Committee and any Employee to whom the duties of the
Benefits Committee may be delegated against any and all claims, losses, damages, expenses or liabilities arising from any action or failure to act with respect to this Plan, except in the case of willful misconduct by the Benefits Committee, any of
its members, or any such Employee. 

  

	11.5	Sponsor Information. To enable the Benefits Committee to perform its functions, the Sponsor shall supply full and timely information to the Benefits Committee, as the
case may be, on all matters relating to the compensation of its Participants, the date and circumstances of the Retirement, death or Separation from Service of its Participants, and such other pertinent information as the Benefits Committee may
reasonably require. 

 ARTICLE 12 
 Other Benefits and Agreements 
  

	12.1	Coordination with Other Benefits. The benefits provided for a Participant and Participant’s Beneficiary under the Plan are in addition to any other benefits
available to such Participant under any other plan or program for employees of the Sponsor. The Plan shall supplement and shall not supersede, modify or amend any other such plan or program except as may otherwise be expressly provided.

  

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 ARTICLE 13 
 Claims Procedures 
  

	13.1	Presentation of Claim. Any Participant or Beneficiary of a deceased Participant (such Participant or Beneficiary being referred to below as a “Claimant”) may
deliver to the Benefits Committee a written claim for a determination with respect to the amounts distributable to such Claimant from the Plan. If such a claim relates to the contents of a notice received by the Claimant, the claim must be made
within sixty (60) days after such notice was received by the Claimant. All other claims must be made within 180 days of the date on which the event that caused the claim to arise occurred. The claim must state with particularity the
determination desired by the Claimant. 

  

	13.2	Notification of Decision. The Benefits Committee shall consider a Claimant’s claim within a reasonable time, and shall notify the Claimant in writing:

  

	 	(a)	that the Claimant’s requested determination has been made, and that the claim has been allowed in full; or 

  

	 	(b)	that the Benefits Committee has reached a conclusion contrary, in whole or in part, to the Claimant’s requested determination, and such notice must set forth in a manner
calculated to be understood by the Claimant: 

  

	 	(i)	the specific reason(s) for the denial of the claim, or any part of it; 

  

	 	(ii)	specific reference(s) to pertinent provisions of the Plan upon which such denial was based; 

  

	 	(iii)	a description of any additional material or information necessary for the Claimant to perfect the claim, and an explanation of why such material or information is necessary; and

  

	 	(iv)	an explanation of the claim review procedure set forth in Section 13.3 below. 

  

	13.3	Review of a Denied Claim. Within sixty (60) days after receiving a notice from the Benefits Committee that a claim has been denied, in whole or in part, a
Claimant (or the Claimant’s duly authorized representative) may file with the Benefits Committee a written request for a review of the denial of the claim. Thereafter, but not later than thirty (30) days after the review procedure began,
the Claimant (or the Claimant’s duly authorized representative): 

  

	 	(a)	may review pertinent documents; 

  

	 	(b)	may submit written comments or other documents; and/or 

  

	 	(c)	may request a hearing, which the Benefits Committee, in its sole discretion, may grant. 

  

	13.4	Decision on Review. The Benefits Committee shall render its decision on review promptly, and not later than sixty (60) days after the filing of a written request
for review of the denial, unless a hearing is held or other special circumstances require additional time, in which case the Benefits Committee’s decision must be rendered within 120 days after such date. Such decision must be written in a
manner calculated to be understood by the Claimant, and it must contain: 

  

	 	(a)	specific reasons for the decision; 

  

	 	(b)	specific reference(s) to the pertinent Plan provisions upon which the decision was based; and 

  

	 	(c)	such other matters as the Benefits Committee deems relevant. 

  

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	13.5	Legal Action. A Claimant’s compliance with the foregoing provisions of this Article 13 is a mandatory prerequisite to a Claimant’s right to commence any
legal action with respect to any claim for benefits under this Plan. 

 ARTICLE 14 
 Trust 
  

	14.1	Establishment of the Trust. In order to provide assets from which to fulfill the obligations of the Participants and their beneficiaries under the Plan, the Sponsor
may establish a Trust by a trust agreement with a third party, the trustee, to which the Sponsor may, in its discretion, contribute cash or other property, including securities issued by the Sponsor, to provide for the benefit payments under the
Plan. 

  

	14.2	Interrelationship of the Plan and the Trust. The provisions of the Plan shall govern the rights of a Participant to receive distributions pursuant to the Plan. The
provisions of the Trust shall govern the rights of the Sponsor, Participants and the creditors of the Sponsor to the assets transferred to the Trust. The Sponsor shall at all times remain liable to carry out its obligations under the Plan.

  

	14.3	Distributions From the Trust. The Sponsor’s obligations under the Plan may be satisfied with Trust assets distributed pursuant to the terms of the Trust, and any
such distribution shall reduce the Sponsor’s obligations under this Plan. 

 ARTICLE 15 
 Miscellaneous 
  

	15.1	Status of Plan. The Plan is intended to be a plan that is not qualified within the meaning of Code Section 401(a) and that “is unfunded and is maintained by
an employer primarily for the purpose of providing deferred compensation for a select group of management or highly compensated employees” within the meaning of ERISA Sections 201(2), 301(a)(3) and 401(a)(1). The Plan shall be administered and
interpreted to the extent possible in a manner consistent with that intent. 

  

	15.2	Unsecured General Creditor. Participants and their Beneficiaries, heirs, successors and assigns shall have no legal or equitable rights, interests or claims in any
property or assets of the Sponsor. For purposes of the payment of benefits under this Plan, any and all of the Sponsor’s assets shall be, and remain, the general, unpledged unrestricted assets of the Sponsor. The Sponsor’s obligation under
the Plan shall be merely that of an unfunded and unsecured promise to pay money in the future. 

  

	15.3	Sponsor’s Liability. The Sponsor’s liability for the payment of benefits shall be defined only by the Plan. The Sponsor shall have no obligation to a
Participant under the Plan except as expressly provided in the Plan. 

  

	15.4	 Nonassignability. Neither a Participant nor any other person shall have any right to commute, sell, assign, transfer, pledge, anticipate, mortgage or
otherwise encumber, transfer, hypothecate, alienate or convey in advance of actual receipt, the amounts, if any, payable hereunder, or any part thereof, which are, and all rights to which are expressly declared to be, unassignable and 

  

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non-transferable. No part of the amounts payable shall, prior to actual payment, be subject to seizure, attachment, garnishment or sequestration for the
payment of any debts, judgments, alimony or separate maintenance owed by a Participant or any other person, be transferable by operation of law in the event of a Participant’s or any other person’s bankruptcy or insolvency or be
transferable to a spouse as a result of a property settlement or otherwise. 

  

	15.5 	Not a Contract of Employment. The terms and conditions of this Plan shall not be deemed to constitute a contract of employment between the Sponsor and the Participant.
Such employment is hereby acknowledged to be an “at will” employment relationship that can be terminated at any time for any reason, or no reason, with or without cause, and with or without notice, unless expressly provided in a written
employment agreement. Nothing in this Plan shall be deemed to give a Participant the right to be retained in the service of the Sponsor, as an Employee, or to interfere with the right of the Sponsor to discipline or discharge the Participant at any
time. 

  

	15.6 	Furnishing Information. A Participant or his or her Beneficiary will cooperate with the Benefits Committee by furnishing any and all information requested by the
Benefits Committee and take such other actions as may be requested in order to facilitate the administration of the Plan and the payments of benefits hereunder, including but not limited to taking such physical examinations as the Benefits Committee
may deem necessary. 

  

	15.7 	Terms. Whenever any words are used herein in the masculine, they shall be construed as though they were in the feminine in all cases where they would so apply; and
whenever any words are used herein in the singular or in the plural, they shall be construed as though they were used in the plural or the singular, as the case may be, in all cases where they would so apply. 

  

	15.8 	Captions. The captions of the articles, sections and paragraphs of this Plan are for convenience only and shall not control or affect the meaning or construction of
any of its provisions. 

  

	15.9 	Governing Law. Subject to ERISA, the provisions of this Plan shall be construed and interpreted according to the internal laws of the Commonwealth of Massachusetts
without regard to its conflicts of laws principles. 

  

	15.10 	Notice. Any notice or filing required or permitted to be given to the Benefits Committee under this Plan shall be sufficient if in writing and hand-delivered, or sent
by registered or certified mail, to the address below: 

 Boston Properties Benefits Committee 
 c/o Boston Properties, Inc. 
 Prudential
Center 
 800 Boylston Street, Suite 1900 
 Boston MA 02199 
 Such notice shall be deemed given as of the date of delivery or, if delivery is made by
mail, as of the date shown on the postmark on the receipt for registration or certification. 
 Any notice or filing required or permitted to
be given to a Participant under this Plan shall be sufficient if in writing and hand-delivered, or sent by mail, to the last known address of the Participant. 
  

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	15.11 	Successors. The provisions of this Plan shall bind and inure to the benefit of the Sponsor and its successors and assigns and the Participant and the
Participant’s designated Beneficiaries. 

  

	15.12 	Spouse’s Interest. The interest in the benefits hereunder of a spouse of a Participant who has predeceased the Participant shall automatically pass to the
Participant and shall not be transferable by such spouse in any manner, including but not limited to such spouse’s will, nor shall such interest pass under the laws of intestate succession. 

  

	15.13 	Validity. In case any provision of this Plan shall be illegal or invalid for any reason, said illegality or invalidity shall not affect the remaining parts hereof, but
this Plan shall be construed and enforced as if such illegal or invalid provision had never been inserted herein. 

  

	15.14 	Incompetent. If the Benefits Committee determines in its discretion that a benefit under this Plan is to be paid to a minor, a person declared incompetent or to a
person incapable of handling the disposition of that person’s property, the Benefits Committee may direct payment of such benefit to the guardian, legal representative or person having the care and custody of such minor, incompetent or
incapable person. The Benefits Committee may require proof of minority, incompetence, incapacity or guardianship, as it may deem appropriate prior to distribution of the benefit. Any payment of a benefit shall be a payment for the account of the
Participant and the Participant’s Beneficiary, as the case may be, and shall be a complete discharge of any liability under the Plan for such payment amount. 

  

	15.15 	Court Order. The Benefits Committee is authorized to make any payments directed by court order in any action in which the Plan or the Benefits Committee has been named
as a party. In addition, if a court determines that a spouse or former spouse of a Participant has an interest in the Participant’s benefits under the Plan in connection with a property settlement or otherwise, the Benefits Committee shall,
notwithstanding any election made by a Participant, distribute the spouse’s or former spouse’s interest in the Participant’s benefits under the Plan to that spouse or former spouse in accordance with the domestic relations order.

  

	15.16 	Insurance. The Sponsor, on its own behalf or on behalf of the trustee of the Trust, and, in its sole discretion, may apply for and procure insurance on the life of the
Participant, in such amounts and in such forms as the Trust may choose. The Sponsor or the trustee of the Trust, as the case may be, shall be the sole owner and beneficiary of any such insurance. The Participant shall have no interest whatsoever in
any such policy or policies, and at the request of the Sponsor shall submit to medical examinations and supply such information and execute such documents as may be required by the insurance company or companies to whom the Sponsor has applied for
insurance. 

  

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 Boston Properties 
 Deferred Compensation Plan 
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 IN WITNESS WHEREOF, the Sponsor has caused this amended and restated Plan document to be duly executed by a duly
authorized officer of its general partner as of December 18, 2008. 
  

					
	BOSTON PROPERTIES LIMITED PARTNERSHIP
		
	By:	 	BOSTON PROPERTIES, INC.,
		 	Its General Partner
			
		 	By:	 	/s/ Frank D. Burt
		 	Name:	 	Frank D. Burt
		 	Title:	 	Senior Vice President and General Counsel

  

 -18-Second Amendment to Employment Agreement

 EXHIBIT 10.13 
  
 SECOND AMENDMENT 
 TO 

EMPLOYMENT AGREEMENT 
  
 Second Amendment (“Amendment”) made as of the 15th day of December, 2008 to the Employment Agreement (“Employment Agreement”) dated as of January 17, 2003, as subsequently amended as of
November 1, 2007, by and between Boston Properties, Inc., a Delaware corporation with its principal executive office in Boston, Massachusetts (the “Company”), and Mortimer B. Zuckerman (“Employee”). 

 
 WHEREAS, the parties hereto desire to amend the Employment Agreement
further to comply with the requirements of Section 409A of the Internal Revenue Code of 1986, as amended; and 
  
 WHEREAS, the parties hereto desire that this Amendment be deemed a modification and an amendment to the Employment Agreement. 
  
 NOW, THEREFORE, in consideration of the mutual covenants contained herein,
the Company and Employee agree as follows: 
  
 1. Subparagraph
8(e)(iii) of the Employment Agreement is amended by deleting the penultimate sentence of clause (A) thereof and substituting therefor the following: 
  
 “The Severance Amount shall be paid in equal installments in accordance with the Company’s then payroll practice over a twelve (12) month
period beginning with the first payroll date that occurs at least thirty (30) days after the Date of Termination.” 
  
 2. All other provisions of the Employment Agreement shall remain in full force and effect according to their respective terms, and nothing contained
herein shall be deemed a waiver of any right or abrogation of any obligation otherwise existing under the Employment Agreement except to the extent specifically provided for herein. 

 IN WITNESS WHEREOF, this Amendment has been executed as a sealed instrument by the Company and by
Employee as of the date first above written. 
  

					
	BOSTON PROPERTIES, INC.
		
	 By:
	 	/s/ Douglas T. Linde
		 	Name:	 	Douglas T. Linde
		 	Title:	 	President
	
	/s/ Mortimer B. Zuckerman
	 MORTIMER B. ZUCKERMAN

  

 2

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