|UNITED STATES                     
|----------------------------------
|SECURITIES AND EXCHANGE COMMISSION
|Washington, D.C.  20549           



|FORM 10-K
|---------



|[ X ] ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934     
|-----------------------------------------------------------------------------------------------
|For the fiscal year ended December 31, 2013                                                    
|or                                                                                             
|[    ] TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
|For the transition period from _____________ to _____________                                  



|333-179413-01                             
|------------------------------------------
|(Commission File Number of issuing entity)



|UBS- Barclays Commercial Mortgage Trust 2013-C6
|-----------------------------------------------
|(Exact name of issuing entity)                 



|Barclays Commercial Mortgage Securities LLC.          
|------------------------------------------------------
|(Exact name of registrant as specified in its charter)





|Barclays Bank PLC                                       
|--------------------------------------------------------
|Redwood Commercial Mortgage Corporation                 
|Natixis Real Estate Capital LLC                         
|UBS Real Estate Securities Inc.                         
|(Exact names of sponsors as specified in their charters)



|27-010880                           
|------------------------------------
|(I.R.S. Employer Identification No.)





|New York                                                                            
|------------------------------------------------------------------------------------
|(State or other jurisdiction of incorporation or organization of the issuing entity)



|c/o US Bank, National Association as Certificate Administrator
|--------------------------------------------------------------
|190 South Lasalle Street                                      
|Chicago,IL                                                    
|(Address of principal executive offices of issuing entity)    





|60603     
|----------
|(Zip Code)



|(212) 412-4000                                      
|----------------------------------------------------
|(Registrant's telephone number, including area code)



|Securities registered pursuant to Section 12(b) of the Act: | None.
|----------------------------------------------------------- | -----
|Securities registered pursuant to Section 12(g) of the Act: | None.



|Indicate by check mark if the
registrant is a well-known seasoned issuer, as defined in Rule 405 of
the Securities Act. Yes [ ] No [ X ]
|----------------------------------------------------------------------------------------------------------------------------------------





|Indicate by check mark if the
registrant is not required to file reports pursuant to Section 13 or
Section 15(d) of the Act. Yes [ ] No [ X ]
|---------------------------------------------------------------------------------------------------------------------------------------------





|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 whether
the registrant has submitted electronically and posted on its corporate
Web site, if any, every Interactive Data File required to be submitted
and posted pursuant to Rule 405 of Regulation S T (§232.405 of this
chapter) during the preceding 12 months (or for such shorter period
that the registrant was required to submit and post such files).
|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|Not Applicable.                                                                                                                                                                                                                                                                                                                                                                       





|Indicate by checkmark if
disclosure of delinquent filers pursuant to Item 405 of Regulation S-K
(§229.405 of this chapter) 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.
|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|Not Applicable.                                                                                                                                                                                                                                                                                                                                                





|Indicate by check mark whether
the registrant is a large accelerated filer, an accelerated filer, a
non-accelerated filer, or a smaller reporting company. See the
definitions of "large accelerated filer", "accelerated filer", and
"smaller reporting company" in Rule 12b-2 of the Exchange Act.
|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|Large accelerated filer [ ]                                                                                                                                                                                                                                                                         
|Non-accelerated filer [X]                                                                                                                                                                                                                                                                           



|Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Act).         Yes [ ] No [ X ]
|--------------------------------------------------------------------------------------------------------------------------------





|State the aggregate market
value of the voting and non-voting common equity held by non-affiliates
computed by reference to the price at which the common equity was last
sold, or the average bid and asked price of such common equity, as of
the last business day of the registrant's most recently completed
second fiscal quarter.
|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|Not Applicable.                                                                                                                                                                                                                                                                                                                         



|Indicate by check mark whether
the registrant has filed all documents and reports required to be filed
by Section 12, 13 or 15(d) of the Securities Exchange Act of 1934
subsequent to the distribution of securities under a plan confirmed by
a court.
|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|Not Applicable.                                                                                                                                                                                                                                         



|Indicate the number of shares
outstanding of each of the registrant's classes of common stock, as of
the last practicable date.
|-------------------------------------------------------------------------------------------------------------------------------
|Not Applicable.                                                                                                                



|DOCUMENTS INCORPORATED BY REFERENCE                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      
|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|List hereunder the following
documents if incorporated by reference and the Part of the Form 10-K
(e.g., Part I, Part II, etc.) into which the document is incorporated:
(1) Any annual report to security holders; (2) Any proxy or information
statement; and (3) Any prospectus filed pursuant to Rule 424(b) or (c)
under the Securities Act of 1933. The listed documents should be
clearly described for identification purposes (e.g., annual report to
security holders for fiscal year ended December 24, 1980).
|Not Applicable.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          







|EXPLANATORY NOTE                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    
|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|The Exhibit Index describes exhibits
delivered by certain parties (in their capacities indicated on the
Exhibit Index) with respect to the Santa Anita Mall Mortgage Loan,
which constituted approximately 5.4% of the asset pool of the issuing
entity as of its cut-off date. The Santa Anita Mall Mortgage Loan is an
asset of the issuing entity and is part of a loan combination that
includes the Santa Anita Mall Mortgage Loan and one other pari passu
loan that is not an asset of the issuing entity. The other pari passu
portion of this loan combination was securitized in the UBS-BB 2013-C5
Mortgage Trust transaction, Commission File Number 333-177354-05 (the
“UBS-BB 2013-C5 Transaction”). This loan combination, including the
Santa Anita Mall Mortgage Loan, is being serviced and administered
pursuant to the pooling and servicing agreement for the UBS-BB 2013-C5
Transaction, which is incorporated by reference as Exhibit 4.2 to this
Annual Report on Form 10-K.
|Midland Loan Services, a Division of
PNC Bank, National Association (“Midland”) is the master servicer of
the mortgage loans serviced under the Pooling and Servicing Agreement
and the primary servicer and special servicer of the Santa Anita Mall
Mortgage Loan. These mortgage loans, in the aggregate, constituted more
than 10% of the asset pool of the issuing entity as of its cut-off
date. Thus, Midland is a “servicer,” as defined in Item 1108(a)(iii) of
Regulation AB, with respect to these mortgage loans. The assessments of
compliance with applicable servicing criteria, accountants’ attestation
reports and servicer compliance statements delivered by Midland in the
capacities described above are listed in the Exhibit Index.                                                                                                                                                                                                                                         



|PART I
|------



|Item 1.  Business.
|------------------
|Omitted.          



|Item 1A.  Risk Factors.
|-----------------------
|Omitted.               



|Item 1B. Unresolved Staff Comments.
|-----------------------------------
|                                   



|Item 2. Properties.
|-------------------
|Omitted.           



|Item 3. Legal Proceedings.
|--------------------------
|Omitted.                  



|Item 4. Mine Safety Disclosures
|-------------------------------
|                               







|PART II
|-------



|Item 5. Market for Registrant's Common Equity, Related Stockholder Matters and Issuer Purchases of Equity
Securities.
|---------------------------------------------------------------------------------------------------------------------
|Omitted.                                                                                                             





|Item 6. Selected Financial Data.
|--------------------------------
|Omitted.                        



|Item 7. Management's Discussion and Analysis of Financial Condition and Results of Operation.
|---------------------------------------------------------------------------------------------
|Omitted.                                                                                     





|Item 7A. Quantitative and Qualitative Disclosures About Market Risk.
|--------------------------------------------------------------------
|Omitted.                                                            



|Item 8. Financial Statements and Supplementary Data.
|----------------------------------------------------
|Omitted.                                            



|Item 9. Changes in and Disagreements With Accountants on Accounting and Financial Disclosure.
|---------------------------------------------------------------------------------------------
|Omitted.                                                                                     









|Item 9A. Controls and Procedures.
|---------------------------------
|Omitted.                         



|Item 9B. Other Information.
|---------------------------
|Omitted.                   



|PART III
|--------



|Item 10. Directors and Executive Officers and Corporate Governance.
|-------------------------------------------------------------------
|Omitted.                                                           



|Item 11. Executive Compensation.
|--------------------------------
|Omitted.                        



|Item 12. Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters.
|--------------------------------------------------------------------------------------------------------
|Omitted.                                                                                                





|Item 13. Certain Relationships and Related Transactions, and Director Independence.
|-----------------------------------------------------------------------------------
|Omitted.                                                                           



|Item 14. Principal Accounting Fees and Services.
|------------------------------------------------
|Omitted.                                        



|ADDITONAL DISCLOSURE ITEMS FOR REGULATION AB
|--------------------------------------------





|Item 1112(b) of Regulation AB.   Significant Obligors of Pool Assets (Financial Information).
|---------------------------------------------------------------------------------------------



|The Gateway Mortgage Loan
(Loan #1 on Annex A-1 of the prospectus supplement of the registrant
relating to the issuing entity filed on April 25, 2013 pursuant to Rule
424(b)(5)) constitutes a significant obligor within the meaning of Item
1101(k)(2) of Regulation AB. In accordance with Item 1112(b) of
Regulation AB, the most recent unaudited net operating income of the
significant obligor was $12,621,277.60 for the twelve month period
ended December 31, 2013.
|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



|Item 1114(b)(2) of
Regulation AB. Credit Enhancement and Other Support, Except for Certain
Derivatives Instruments (Information Regarding Significant Enhancement
Providers Financial Information).
|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



|No entity or group of
affiliated entities provides any external credit enhancement or other
support for the certificates within this transaction as described under
Item 1114 (a) or Regulation AB.
|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



|Item 1115(b) of Regulation AB.  Certain Derivatives Instruments (Financial Information).
|----------------------------------------------------------------------------------------



|No entity or group of
affiliated entities provides any derivative instruments or other
support for the certificates within this transaction as described under
Item 1115 or Regulation AB.
|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



|Item 1117 of Regulation AB.  Legal Proceedings.
|-----------------------------------------------



|The registrant knows of no
material pending legal proceeding involving the trust or any party
related to the trust, other than routine litigation incidental to the
duties of those respective parties, and the following, with respect to
UBS Real Estate Securities Inc ("UBSRES"), a sponsor and a mortgage
loan seller:
|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



|UBSRES is currently engaged in
litigation with respect to various legacy residential mortgage-backed
securities transactions. Some litigants are seeking the repurchase of
mortgage loans by UBSRES from certain residential mortgage
securitization trusts, on the basis that the loans are allegedly in
breach of contractual representations and warranties in governing
transaction documents. Other litigants are alleging violations of
federal and/or state securities or common law for alleged
misrepresentations and omissions in offering documents in connection
with the issuance and/or distribution of residential mortgage-backed
securities. No assurance can be given that one or more of the foregoing
actions will not result in material liability to UBSRES.
|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



|Item 1119 of Regulation AB.  Affiliations and Certain Relationships and Related Transactions.
|---------------------------------------------------------------------------------------------



|The information regarding this
item has been previously provided in a prospectus supplement of the
registrant relating to the issuing entity filed on April 25, 2013
pursuant to Rule 424(b)(5).
|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



|Item 1122 of Regulation AB.  Compliance with Applicable Servicing Criteria.
|---------------------------------------------------------------------------



|The reports on assessment of
compliance with the servicing criteria for asset-backed securities and
the related attestation reports on such assessments of compliance are
attached hereto under Item 15. Attached as Schedule II to the Pooling
and Servicing Agreement incorporated by reference as Exhibit 4.1 to
this Annual Report on Form 10-K is a chart identifying the entities
participating in a servicing function for the transaction responsible
for each applicable servicing criterion set forth in Item 1122(d).
|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



|The reports on assessments of
compliance with the servicing criteria for asset-backed securities and
related attestation reports on such assessments of compliance with
respect to the Santa Anita Mall Mortgage Loan, which is being serviced
and administered pursuant to the pooling and servicing agreement for
the UBS-BB 2013-C5 Transaction, are attached hereto as Exhibits
33.7-33.8 and 34.7-34.8 to this Annual Report on Form 10-K. Attached as
Schedule II to the pooling and servicing agreement for the UBS-BB
2013-C5 Transaction incorporated by reference as Exhibit 4.2 to this
Annual Report on Form 10-K is a chart identifying the entities
participating in a servicing function for the UBS-BB 2013-C5
Transaction responsible for each applicable servicing criteria set
forth in Item 1122(d).
|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



|Item 1123 of Regulation AB.  Servicer Compliance Statement.
|-----------------------------------------------------------



|The servicer compliance statements are attached as Exhibits to this Annual Report on Form 10-K.
|-----------------------------------------------------------------------------------------------



|PART IV
|-------





|Item 15. Exhibits, Financial Statement Schedules.
|-------------------------------------------------



|(a) The following is a list of documents filed as part of this Annual Report on Form 10-K;
|------------------------------------------------------------------------------------------
|(1) Not applicable                                                                        
|(2) Not applicable                                                                        
|(3) See below                                                                             



|4.1 Pooling and Servicing
Agreement, dated as of April 1, 2013, among Barclays Commercial
Mortgage Securities LLC, as depositor, Midland Loan Services, a
Division of PNC Bank, National Association, as master servicer, Rialto
Capital Advisors, LLC, as special servicer, U.S. Bank National
Association, as trustee, certificate administrator, paying agent and
custodian, and Park Bridge Lender Services, LLC, as operating advisor
(filed as Exhibit 4 to the registrant's Current Report on Form 8-K,
filed on April 25, 2013 and incorporated by reference herein)                                                                                                                                 
|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|4.2 Pooling and Servicing Agreement,
dated as of February 1, 2013, by and among UBS Commercial Mortgage
Securitization Corp., as depositor, Midland Loan Services, a Division
of PNC Bank, National Association, as master servicer, Midland Loan
Services, a Division of PNC Bank, National Association, as special
servicer, Deutsche Bank Trust Company Americas, as trustee, certificate
administrator, paying agent and custodian, and Situs Holdings, LLC, as
operating advisor (filed as Exhibit 4 to the UBS Commercial Mortgage
Securitization Corp's Current Report on Form 8-K, filed on February 28,
2013 in connection with the UBS-BB 2013-C5 Transaction and incorporated
by reference herein)



|31 Rule 13a-14(d)/15d-14(d) Certification
|-----------------------------------------



|33 Reports on Assessment of Compliance with Servicing Criteria for Asset-Backed Securities                                                             
|-------------------------------------------------------------------------------------------------------------------------------------------------------
|33.1 Midland Loan Services, a Division of PNC Bank, National Association, as Master Servicer                                                           
|33.2 Rialto Capital Advisors, LLC, as Special Servicer                                                                                                 
|33.3 U.S. Bank National Association, as Trustee, Certificate Administrator and Custodian                                                               
|33.4 Park Bridge Lender Services, LLC, as Operating Advisor                                                                                            
|33.5 Midland Loan Services, a
Division of PNC Bank, National Association, as Primary Servicer for the
Santa Anita Mall Mortgage Loan (see Exhibit 33.1)
|33.6 Midland Loan Services, a
Division of PNC Bank, National Association, as Special Servicer for the
Santa Anita Mall Mortgage Loan (see Exhibit 33.1)
|33.7 Deutsche Bank Trust Company
Americas, as Trustee, Certificate Administrator and Custodian for the
Santa Anita Mall Mortgage Loan                  
|33.8 Situs Holdings, LLC, as Operating Advisor for the Santa Anita Mall Mortgage Loan                                                                  



|34 Attestation Reports on Assessment of Compliance with Servicing Criteria for Asset-Backed Securities                                                 
|-------------------------------------------------------------------------------------------------------------------------------------------------------
|34.1 Midland Loan Services, a Division of PNC Bank, National Association, as Master Servicer                                                           
|34.2 Rialto Capital Advisors, LLC, as Special Servicer                                                                                                 
|34.3 U.S. Bank National Association, as Trustee, Certificate Administrator and Custodian                                                               
|34.4 Park Bridge Lender Services, LLC, as Operating Advisor                                                                                            
|34.5 Midland Loan Services, a
Division of PNC Bank, National Association, as Primary Servicer for the
Santa Anita Mall Mortgage Loan (see Exhibit 34.1)
|34.6 Midland Loan Services, a
Division of PNC Bank, National Association, as Special Servicer for the
Santa Anita Mall Mortgage Loan (see Exhibit 34.1)
|34.7 Deutsche Bank Trust Company
Americas, as Trustee, Certificate Administrator and Custodian for the
Santa Anita Mall Mortgage Loan                  
|34.8 Situs Holdings, LLC, as Operating Advisor for the Santa Anita Mall Mortgage Loan                                                                  



|35 Servicer Compliance Statements                                                                                                                      
|-------------------------------------------------------------------------------------------------------------------------------------------------------
|35.1 Midland Loan Services, a Division of PNC Bank, National Association, as Master Servicer                                                           
|35.2 Rialto Capital Advisors, LLC, as Special Servicer                                                                                                 
|35.3 U.S. Bank National Association, as Certificate Administrator                                                                                      
|35.4 Midland Loan Services, a
Division of PNC Bank, National Association, as Primary Servicer for the
Santa Anita Mall Mortgage Loan (see Exhibit 35.1)
|35.5 Midland Loan Services, a
Division of PNC Bank, National Association, as Special Servicer for the
Santa Anita Mall Mortgage Loan (see Exhibit 35.1)



|99.1 Mortgage Loan Purchase
Agreement, dated as of April 25, 2013 between UBS Real Estate
Securities Inc., as seller, and Barclays Commercial Mortgage Securities
LLC, as purchaser (filed as Exhibit 99.1 to the registrant's Current
Report on Form 8-K, filed by the registrant on April 25, 2013 and
incorporated by reference herein)        
|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|99.2 Mortgage Loan Purchase
Agreement, dated as of April 25, 2013 between Barclays Bank PLC, as
seller, and Barclays Commercial Mortgage Securities LLC, as purchaser
(filed as Exhibit 99.2 to the registrant's Current Report on Form 8-K,
filed by the registrant on April 25, 2013 and incorporated by reference
herein)                      
|99.3 Mortgage Loan Purchase
Agreement, dated as of April 25, 2013 between Redwood Commercial
Mortgage Corporation, as seller, and Barclays Commercial Mortgage
Securities LLC, as purchaser (filed as Exhibit 99.3 to the registrant's
Current Report on Form 8-K, filed by the registrant on April 25, 2013
and incorporated by reference herein)
|99.4 Mortgage Loan Purchase
Agreement, dated as of April 25, 2013 between Natixis Real Estate
Capital LLC, as seller, and Barclays Commercial Mortgage Securities
LLC, as purchaser (filed as Exhibit 99.4 to the registrant's Current
Report on Form 8-K, filed by the registrant on April 25, 2013 and
incorporated by reference herein)        
|(b) The exhibits required to be filed
by the registrant pursuant to Item 601 of Regulation S-K are listed
above and in the Exhibit Index that immediately follows the signature
page hereof.                                                                                                                                                      
|(c)  Not applicable                                                                                                                                                                                                                                                                                                                               

































|SIGNATURES
|----------



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











| |                       |  | By: /s/  Daniel Vinson
| | --------------------- |  | ----------------------
| | Name:
Daniel Vinson  
| | Title:
Vice President



| | Dated:
March 31, 2014
| | ---------------------







|EXHIBIT INDEX
|-------------



|Exhibit Description
|-------------------



|4.1 Pooling and Servicing
Agreement, dated as of April 1, 2013, among Barclays Commercial
Mortgage Securities LLC, as depositor, Midland Loan Services, a
Division of PNC Bank, National Association, as master servicer, Rialto
Capital Advisors, LLC, as special servicer, U.S. Bank National
Association, as trustee, certificate administrator, paying agent and
custodian, and Park Bridge Lender Services, LLC, as operating advisor
(filed as Exhibit 4 to the registrant's Current Report on Form 8-K,
filed on April 25, 2013 and incorporated by reference herein)
|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



|4.2 Pooling and Servicing
Agreement, dated as of February 1, 2013, by and among UBS Commercial
Mortgage Securitization Corp., as depositor, Midland Loan Services, a
Division of PNC Bank, National Association, as master servicer, Midland
Loan Services, a Division of PNC Bank, National Association, as special
servicer, Deutsche Bank Trust Company Americas, as trustee, certificate
administrator, paying agent and custodian, and Situs Holdings, LLC, as
operating advisor (filed as Exhibit 4 to the UBS Commercial Mortgage
Securitization Corp's Current Report on Form 8-K, filed on February 28,
2013 in connection with the UBS-BB 2013-C5 Transaction and incorporated
by reference herein)
|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



|31 Rule 13a-14(d)/15d-14(d) Certification
|-----------------------------------------



|33 Reports on Assessment of Compliance with Servicing Criteria for Asset-Backed Securities                                                             
|-------------------------------------------------------------------------------------------------------------------------------------------------------
|33.1 Midland Loan Services, a Division of PNC Bank, National Association, as Master Servicer                                                           
|33.2 Rialto Capital Advisors, LLC, as Special Servicer                                                                                                 
|33.3 U.S. Bank National Association, as Trustee, Certificate Administrator and Custodian                                                               
|33.4 Park Bridge Lender Services, LLC, as Operating Advisor                                                                                            
|33.5 Midland Loan Services, a
Division of PNC Bank, National Association, as Primary Servicer for the
Santa Anita Mall Mortgage Loan (see Exhibit 33.1)
|33.6 Midland Loan Services, a
Division of PNC Bank, National Association, as Special Servicer for the
Santa Anita Mall Mortgage Loan (see Exhibit 33.1)
|33.7 Deutsche Bank Trust Company
Americas, as Trustee, Certificate Administrator and Custodian for the
Santa Anita Mall Mortgage Loan                  
|33.8 Situs Holdings, LLC, as Operating Advisor for the Santa Anita Mall Mortgage Loan                                                                  





|34 Attestation Reports on Assessment of Compliance with Servicing Criteria for Asset-Backed Securities                                                 
|-------------------------------------------------------------------------------------------------------------------------------------------------------
|34.1 Midland Loan Services, a Division of PNC Bank, National Association, as Master Servicer                                                           
|34.2 Rialto Capital Advisors, LLC, as Special Servicer                                                                                                 
|34.3 U.S. Bank National Association, as Trustee, Certificate Administrator and Custodian                                                               
|34.4 Park Bridge Lender Services, LLC, as Operating Advisor                                                                                            
|34.5 Midland Loan Services, a
Division of PNC Bank, National Association, as Primary Servicer for the
Santa Anita Mall Mortgage Loan (see Exhibit 34.1)
|34.6 Midland Loan Services, a
Division of PNC Bank, National Association, as Special Servicer for the
Santa Anita Mall Mortgage Loan (see Exhibit 34.1)
|34.7 Deutsche Bank Trust Company
Americas, as Trustee, Certificate Administrator and Custodian for the
Santa Anita Mall Mortgage Loan                  
|34.8 Situs Holdings, LLC, as Operating Advisor for the Santa Anita Mall Mortgage Loan                                                                  



|35 Servicer Compliance Statements                                                                                                                      
|-------------------------------------------------------------------------------------------------------------------------------------------------------
|35.1 Midland Loan Services, a Division of PNC Bank, National Association, as Master Servicer                                                           
|35.2 Rialto Capital Advisors, LLC, as Special Servicer                                                                                                 
|35.3 U.S. Bank National Association, as Certificate Administrator                                                                                      
|35.4 Midland Loan Services, a
Division of PNC Bank, National Association, as Primary Servicer for the
Santa Anita Mall Mortgage Loan (see Exhibit 35.1)
|35.5 Midland Loan Services, a
Division of PNC Bank, National Association, as Special Servicer for the
Santa Anita Mall Mortgage Loan (see Exhibit 35.1)



|99.1 Mortgage Loan Purchase
Agreement, dated as of April 25, 2013 between UBS Real Estate
Securities Inc., as seller, and Barclays Commercial Mortgage Securities
LLC, as purchaser (filed as Exhibit 99.1 to the registrant's Current
Report on Form 8-K, filed by the registrant on April 25, 2013 and
incorporated by reference herein)        
|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|99.2 Mortgage Loan Purchase
Agreement, dated as of April 25, 2013 between Barclays Bank PLC, as
seller, and Barclays Commercial Mortgage Securities LLC, as purchaser
(filed as Exhibit 99.2 to the registrant's Current Report on Form 8-K,
filed by the registrant on April 25, 2013 and incorporated by reference
herein)                      
|99.3 Mortgage Loan Purchase
Agreement, dated as of April 25, 2013 between Redwood Commercial
Mortgage Corporation, as seller, and Barclays Commercial Mortgage
Securities LLC, as purchaser (filed as Exhibit 99.3 to the registrant's
Current Report on Form 8-K, filed by the registrant on April 25, 2013
and incorporated by reference herein)
|99.4 Mortgage Loan Purchase
Agreement, dated as of April 25, 2013 between Natixis Real Estate
Capital LLC, as seller, and Barclays Commercial Mortgage Securities
LLC, as purchaser (filed as Exhibit 99.4 to the registrant's Current
Report on Form 8-K, filed by the registrant on April 25, 2013 and
incorporated by reference herein)        





















|Exhibit 31                             
|---------------------------------------
|Rule 13a-14(d)/15d-14(d) Certification.



|I, Larry Kravetz, certify that:
|-------------------------------



|1 I have reviewed this report
on Form 10-K and all reports on Form 10-D required to be filed in
respect of the period covered by this report on Form 10-K of the
UBS-Barclays Commercial Mortgage Trust 2013-C6 (the Exchange Act
periodic reports);
|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



|2 Based on my knowledge, the
Exchange Act periodic reports, taken as a whole, do not contain any
untrue statement of a material fact or omit to state a material fact
necessary to make the statements made, in light of the circumstances
under which such statements were made, not misleading with respect to
the period covered by this report;
|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



|3 Based on my knowledge, all
of the distribution, servicing and other information required to be
provided under Form 10-D for the period covered by this report is
included in the Exchange Act periodic reports;
|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



|4 Based on my knowledge and
the servicer compliance statements required in this report under Item
1123 of Regulation AB, and except as disclosed in the Exchange Act
periodic reports, the servicers have fulfilled their obligations under
the servicing agreements in all material respects; and
|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



|5 All of the reports on
assessment of compliance with servicing criteria for asset-backed
securities and their related attestation reports on assessment of
compliance with servicing criteria for asset-backed securities required
to be included in this report in accordance with Item 1122 of
Regulation AB and Exchange Act Rules 13a-18 and 15d-18 have been
included as an exhibit to this report, except as otherwise disclosed in
this report. Any material instances of noncompliance described in such
reports have been disclosed in this report on Form 10-K.
|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



|In giving the certifications
above, I have reasonably relied on information provided to me by the
following unaffiliated parties: Midland Loan Services, a Division of
PNC Bank, National Association, as Master Servicer, Rialto Capital
Advisors, LLC, as Special Servicer, U.S. Bank National Association, as
Trustee, Certificate Administrator and Custodian, Park Bridge Lender
Services, LLC, as Operating Advisor, Midland Loan Services, a Division
of PNC Bank, National Association, as Primary Servicer for the Santa
Anita Mall Mortgage Loan, Midland Loan Services, a Division of PNC
Bank, National Association, as Special Servicer for the Santa Anita
Mall Mortgage Loan, Deutsche Bank Trust Company Americas, as Trustee,
Certificate Administrator and Custodian for the Santa Anita Mall
Mortgage Loan, and Situs Holdings, LLC, as Operating Advisor for the
Santa Anita Mall Mortgage Loan.
|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------





|Dated: March 31, 2014
|---------------------



|/s/ Larry Kravetz
|-----------------
|Signature        



|President                                                    
|-------------------------------------------------------------
|(senior officer in charge of securitization of the depositor)