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, 2015

or



| ̈ | TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
|- | ----------------------------------------------------------------------------------------

For the transition period from
 to

Commission file number

333-189017-07

(Commission File Number of issuing entity)

0001629716

(Central
Index Key Number of issuing entity)





Citigroup Commercial Mortgage Trust 2015-GC27

(Exact name of issuing entity as specified in its charter)

333-189017

(Commission
File Number of depositor)

0001258361

(Central Index Key Number of depositor)

Citigroup Commercial Mortgage Securities Inc.

(Exact name of depositor as specified in its charter)

Citigroup Global Markets Realty Corp.

(Central Index Key Number: 0001541001)

Goldman Sachs Mortgage Company

(Central Index Key Number: 0001541502)

Rialto Mortgage Finance, LLC

(Central Index Key Number: 0001592182)

Redwood Commercial Mortgage Corporation

(Central Index Key Number: 0001567746)

RAIT Funding, LLC

(Central Index Key Number: 0001587045)

(Exact name of sponsor as specified in its charter)







|                                                                    |  |                                     
|------------------------------------------------------------------- |  | ------------------------------------
|New York                                                            |  | 47-3052831
47-3071329
47-6802394    
|(State or other jurisdiction of
organization of the issuing entity) |  | (I.R.S. Employer
Identification No.)

c/o Citibank, N.A.

388 Greenwich Street, 14th Floor

New York, New York 10013

(Address of principal executive offices of issuing entity)

(212) 816-5614

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    x  No

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    x  No

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.    x  Yes     ̈  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 check mark 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 |  |  ̈                                                |  | Accelerated filer         |  |  ̈
|                        |  |                                                  | 
|Non-accelerated filer   |  | x  (Do not check if a smaller reporting company) |  | Smaller reporting company |  |  ̈

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

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 latest 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).

See Item 15.









---

PART I

Item 1. Business.

Omitted.

Item 1A. Risk Factors.

Omitted.

Item 1B. Unresolved Staff Comments.

None.

Item 2. Properties.

Omitted.

Item 3. Legal Proceedings.

Omitted.

Item 4. Mine Safety Disclosures.

Not applicable.

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 Operations.

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.

None.

PART III

Item 10. Directors,
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.

ADDITIONAL DISCLOSURE ITEMS REQUIRED
BY GENERAL INSTRUCTION J(2)

Item 1112(b) of Regulation AB

With respect to the pool assets for Citigroup Commercial Mortgage Trust 2015-GC27, there are no significant obligors within the meaning of Item 1101(k) of
Regulation AB.

Item 1114(b)(2) and Item 1115(b) of Regulation AB

No entity or group of affiliated entities provides any external credit enhancement, uses any derivative instruments or other support for the certificates
within this transaction.

Item 1117 of Regulation AB

Disclosure from Citibank, N.A., as Certificate Administrator:

On June 18, 2014, a civil action was filed against Citibank, N.A. (Citibank) in the Supreme Court of the State of New York by a group of
investors in 48 private-label RMBS trusts for which Citibank allegedly serves or did serve as trustee, asserting claims for purported violations of the Trust Indenture Act of 1939, breach of contract, breach of fiduciary duty and negligence based on
Citibanks alleged failure to perform its duties as trustee for the 48 RMBS trusts. On November 24, 2014, plaintiffs sought leave to withdraw this action. On the same day, a smaller subset of similar plaintiff investors in 27
private-label RMBS trusts for which Citibank allegedly serves or did serve as trustee, filed a new civil action against Citibank in the United States District Court for the Southern District of New York asserting similar claims as the prior action
filed in state court. In January 2015, the court closed plaintiffs original state court action. Citibanks motion to dismiss the federal complaint was fully briefed as of May 13, 2015. On

September 8, 2015, the federal court dismissed all claims as to 24 of the 27 trusts and allowed certain of the claims to proceed as to the other three trusts.
That case, involving the three remaining trusts, is pending.



---

On November 24, 2015, the same investors that brought the federal case brought a new civil action in the Supreme
Court of the State of New York related to 25 private-label RMBS trusts for which Citibank allegedly serves or did serve as trustee. This case includes the 24 trusts previously dismissed in the federal action, and one additional trust. The
investors assert claims for breach of contract, breach of fiduciary duty, breach of duty to avoid conflicts of interest, and violation of New Yorks Streit Act. Citibank filed a motion to dismiss this case on February 26, 2016.

On August 19, 2015, the Federal Deposit Insurance Corporation (FDIC) as Receiver for a financial institution filed a civil action against Citibank in the
Southern District of New York. This action relates to one private-label RMBS trust for which Citibank formerly served as trustee. FDIC asserts claims for breach of contract, violation of the Streit Act, and violation of the Trust Indenture
Act. Citibank is jointly briefing a motion to dismiss with The Bank of New York Mellon and U.S. Bank, entities that have also been sued by FDIC in their capacity as trustee, and whose cases are all in front of Judge Carter. Defendants joint
motion to dismiss was fully briefed as of March 22, 2016.

There can be no assurances as to the outcome of litigation or the possible impact of litigation
on the trustee or the RMBS trusts. However, Citibank denies liability and continues to vigorously defend against these litigations. Furthermore, neither the above-disclosed litigations nor any other pending legal proceeding involving
Citibank will materially affect Citibanks ability to perform its duties as Certificate Administrator under the Pooling and Servicing Agreement for this CMBS transaction.

Disclosure from Deutsche Bank Trust Company Americas, as Trustee:

On June 18, 2014, a group of investors, including funds managed by Blackrock Advisors, LLC, PIMCO-Advisors, L.P., and others, filed a
derivative action against Deutsche Bank Trust Company Americas (DBTCA) and Deutsche Bank National Trust Company (DBNTC) in New York State Supreme Court purportedly on behalf of and for the benefit of 544 private-label
RMBS trusts asserting claims for alleged violations of the U.S. Trust Indenture Act of 1939 (TIA), breach of contract, breach of fiduciary duty and negligence based on DBNTC and DBTCAs alleged failure to perform their duties as trustees
for the trusts. Plaintiffs subsequently dismissed their state court complaint and filed a derivative and class action complaint in the U.S. District Court for the Southern District of New York on behalf of and for the benefit of
564 private-label RMBS trusts, which substantially overlapped with the trusts at issue in the state court action. The complaint alleges that the trusts at issue have suffered total realized collateral losses of U.S. $89.4 billion, but the
complaint does not include a demand for money damages in a sum certain. DBNTC and DBTCA filed a motion to dismiss, and on January 19, 2016, the court partially granted the motion on procedural grounds: as to the 500 trusts that are governed by
Pooling and Servicing Agreements, the court declined to exercise jurisdiction. The court did not rule on substantive defenses asserted in the motion to dismiss as to the 64 trusts formed under indentures for which it retained
jurisdiction. Instead, the court ordered plaintiffs to file an amended complaint as to those indenture trusts. On February 23, 2016, plaintiffs filed an amended complaint as to 62 of the 64 indenture trusts included in the original U.S.
District Court complaint. DBNTC and DBTCA will have an opportunity to file new defensive motions with respect to this amended complaint.

On March 25, 2016, plaintiffs filed a new state court complaint in California against DBTCA as to 513 trusts governed by Pooling and Servicing
Agreements, most of which had been dismissed from the U.S. District Court action. (Plaintiffs removed 19 of the original 500 and have added 32 new trusts.) DBTCA serves as trustee on only one of these 513 trusts.

On December 30, 2015, IKB International, S.A. and IKB Deutsche Industriebank A.G. filed a Summons With Notice in New York state court naming
as defendants DBNTC and DBTCA, as trustees of 37 RMBS trusts (the IKB Action). The claims in the IKB Action appear to be substantively similar to the SDNY Action. The IKB Action is not styled as a putative class action, but may
attempt to bring derivative claims on behalf of the named RMBS Trusts. DBTCA intends to vigorously defend the IKB Action.

DBTCA has
no pending legal proceedings (including, based on DBTCAs present evaluation, the litigation disclosed in the foregoing paragraphs) that would materially affect its ability to perform its duties as Trustee under the Pooling and Servicing
Agreement for this transaction.

Item 1119 of Regulation AB

Provided previously in the prospectus supplement of the Registrant relating to the issuing entity and filed on February 9, 2015 pursuant to Rule 424(b)(5)
of the Securities Act of 1933, as amended.

Item 1122 of Regulation AB

The reports on assessment of compliance with servicing criteria for asset-backed securities and related attestation reports are attached hereto under Item 15.

Item 1123 of Regulation AB

The servicer compliance
statements are attached hereto under Item 15.

PART IV

Item 15. Exhibits, Financial Statement Schedules.



|(a) | List the following documents filed as a part of the report:
|--- | -----------------------------------------------------------



| | (1) | Not Applicable
| | --- | --------------



| | (2) | Not Applicable
| | --- | --------------



| | (3) | Exhibits listed below are either included or incorporated by reference as indicated below:
| | --- | ------------------------------------------------------------------------------------------



|               |  |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              
|-------------- |  | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|Exhibit Number |  | Description                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  
|               | 
|4.1            |  | Pooling and Servicing Agreement, dated as of February 1, 2015 (the CGCMT 2015-GC27 PSA), by and among Citigroup Commercial Mortgage Securities, Inc., as depositor, Wells Fargo Bank, National Association, as master
servicer, Midland Loan Services, a Division of PNC Bank, National Association, as special servicer, Park Bridge Lender Services LLC, as operating advisor, Citibank, N.A., as certificate administrator, and Deutsche Bank Trust Company Americas, as
trustee (filed as Exhibit 4.1 to the registrants Current Report on Form 8-K dated February 9, 2015, and filed by the registrant on February 9, 2015, and is incorporated by reference herein).
|               | 
|4.2            |  | Pooling and Servicing Agreement governing the issuance of the GSMS 2014-GC26 certificates, dated as of December 1, 2014 (the GSMS 2014-GC26 PSA), by and among GS Mortgage Securities Corporation II, as depositor, Wells
Fargo Bank, National Association, as master servicer, LNR Partners, LLC, as general special servicer, CWCapital Asset Management LLC, as Cypresswood Court Shopping Center special servicer,                                                                                                                                                                                                                                                     



---

|     |  |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   
|---- |  | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|     |  |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   
|     |  | Pentalpha Surveillance LLC, as operating advisor, and U.S. Bank National Association, as trustee and certificate administrator (filed as Exhibit 4.2 to the registrants Current Report on Form 8-K dated February 9, 2015, and
filed by the registrant on February 9, 2015, and is incorporated by reference herein)1.                                                                                                                                                                           
|     | 
|10.1 |  | Mortgage Loan Purchase Agreement, dated as of February 1, 2015, between Citigroup Global Markets Realty Corp. and Citigroup Commercial Mortgage Securities Inc., pursuant to which Citigroup Global Markets Realty Corp. sold certain
mortgage loans to Citigroup Commercial Mortgage Securities Inc. (filed as Exhibit 10.1 to the registrants Current Report on Form 8-K dated February 9, 2015, and filed by the registrant on February 9, 2015, and is incorporated by reference
herein).    
|     | 
|10.2 |  | Mortgage Loan Purchase Agreement, dated as of February 1, 2015, between Goldman Sachs Mortgage Company and Citigroup Commercial Mortgage Securities Inc., pursuant to which Goldman Sachs Mortgage Company sold certain mortgage loans
to Citigroup Commercial Mortgage Securities Inc. (filed as Exhibit 10.2 to the registrants Current Report on Form 8-K dated February 9, 2015, and filed by the registrant on February 9, 2015, and is incorporated by reference herein).                  
|     | 
|10.3 |  | Mortgage Loan Purchase Agreement, dated as of February 1, 2015, between Rialto Mortgage Finance, LLC and Citigroup Commercial Mortgage Securities Inc., pursuant to which Rialto Mortgage Finance, LLC sold certain mortgage loans to
Citigroup Commercial Mortgage Securities Inc. (filed as Exhibit 10.3 to the registrants Current Report on Form 8-K dated February 9, 2015, and filed by the registrant on February 9, 2015, and is incorporated by reference herein).                      
|     | 
|10.4 |  | Mortgage Loan Purchase Agreement, dated as of February 1, 2015, between Redwood Commercial Mortgage Corporation and Citigroup Commercial Mortgage Securities Inc., pursuant to which Redwood Commercial Mortgage Corporation sold
certain mortgage loans to Citigroup Commercial Mortgage Securities Inc. (filed as Exhibit 10.4 to the registrants Current Report on Form 8-K dated February 9, 2015, and filed by the registrant on February 9, 2015, and is incorporated by
reference herein).
|     | 
|10.5 |  | Mortgage Loan Purchase Agreement, dated as of February 1, 2015, between RAIT Funding, LLC and Citigroup Commercial Mortgage Securities Inc., pursuant to which RAIT Funding, LLC sold certain mortgage loans to Citigroup Commercial
Mortgage Securities Inc. (filed as Exhibit 10.5 to the registrants Current Report on Form 8-K dated February 9, 2015, and filed by the registrant on February 9, 2015, and is incorporated by
reference herein).                                            
|     | 
|31   |  | Rule 15d-14(d) Certification                                                                                                                                                                                                                                                                                                                                                                                                                                                                      
|     | 
|33.1 |  | Report on assessment of compliance with servicing criteria for asset-backed securities, Wells Fargo Bank, National Association, as master servicer                                                                                                                                                                                                                                                                                                                                                
|     | 
|33.2 |  | Report on assessment of compliance with servicing criteria for asset-backed securities, Midland Loan Services, a Division of PNC Bank, National Association, as special servicer                                                                                                                                                                                                                                                                                                                  
|     | 
|33.3 |  | Report on assessment of compliance with servicing criteria for asset-backed securities, Park Bridge Lender Services LLC, as operating advisor                                                                                                                                                                                                                                                                                                                                                     
|     | 
|33.4 |  | Report on assessment of compliance with servicing criteria for asset-backed securities, Citibank, N.A., as certificate administrator                                                                                                                                                                                                                                                                                                                                                              
|     | 
|33.5 |  | Report on assessment of compliance with servicing criteria for asset-backed securities, Deutsche Bank Trust Company Americas, as custodian                                                                                                                                                                                                                                                                                                                                                        



|1 | The Twin Cities Premium Outlets mortgage loan is part of a loan combination comprised of the subject mortgage loan included in the issuing entity and one pari passu companion loan that is held outside the issuing
entity. The Twin Cities Premium Outlets mortgage loan and the related companion loan is serviced pursuant to the GSMS 2014-GC26 PSA.
|- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



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|      |  |                                                                                                                                                                                                                                                                             
|----- |  | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|      |  |                                                                                                                                                                                                                                                                             
|33.6  |  | Report on assessment of compliance with servicing criteria for asset-backed securities, CoreLogic Commercial Real Estate Services, Inc., as servicing function participant                                                                                                  
|      | 
|33.7  |  | Report on assessment of compliance with servicing criteria for asset-backed securities, National Tax Search, LLC, as servicing function participant                                                                                                                         
|      | 
|33.8  |  | Report on assessment of compliance with servicing criteria for asset-backed securities, Wells Fargo Bank, National Association, as master servicer for the Twin Cities Premium Outlets mortgage loan under the GSMS 2014-GC26 PSA (see Exhibit 33.1)                        
|      | 
|33.9  |  | Report on assessment of compliance with servicing criteria for asset-backed securities, LNR Partners, LLC, as general special servicer for the Twin Cities Premium Outlets mortgage loan under the GSMS 2014-GC26 PSA                                                       
|      | 
|33.10 |  | Report on assessment of compliance with servicing criteria for asset-backed securities, CoreLogic Commercial Real Estate Services, Inc., as servicing function participant for the Twin Cities Premium Outlets mortgage loan under the GSMS 2014-GC26 PSA (see Exhibit 33.6)
|      | 
|33.11 |  | Report on assessment of compliance with servicing criteria for asset-backed securities, National Tax Search, LLC, as servicing function participant for the Twin Cities Premium Outlets mortgage loan under the GSMS 2014-GC26 PSA (see exhibit 33.7)                       
|      | 
|33.12 |  | Report on assessment of compliance with servicing criteria for asset-backed securities, U.S. Bank National Association, as certificate administrator for the Twin Cities Premium Outlets mortgage loan under the GSMS 2014-GC26 PSA                                         
|      | 
|33.13 |  | Report on assessment of compliance with servicing criteria for asset-backed securities, U.S. Bank National Association, as custodian for the Twin Cities Premium Outlets mortgage loan under GSMS 2014-GC26 PSA (see exhibit
33.12)                                         
|      | 
|33.14 |  | Report on assessment of compliance with servicing criteria for asset-backed securities, Pentalpha Surveillance LLC, as operating advisor for the Twin Cities Premium Outlets mortgage loan under the GSMS 2014-GC26 PSA                                                     
|      | 
|33.15 |  | Report on assessment of compliance with servicing criteria for asset-backed securities, Rialto Capital Advisors, LLC, as special servicer for the Boca Hamptons Plaza Portfolio mortgage loan2                                                                              
|      | 
|34.1  |  | Attestation report on assessment of compliance with servicing criteria for asset-backed securities, Wells Fargo Bank, National Association, as master servicer                                                                                                              
|      | 
|34.2  |  | Attestation report on assessment of compliance with servicing criteria for asset-backed securities, Midland Loan Services, a Division of PNC Bank, National Association, as special servicer                                                                                
|      | 
|34.3  |  | Attestation report on assessment of compliance with servicing criteria for asset-backed securities, Park Bridge Lender Services LLC, as operating advisor                                                                                                                   
|      | 
|34.4  |  | Attestation report on assessment of compliance with servicing criteria for asset-backed securities, Citibank, N.A., as certificate administrator                                                                                                                            
|      | 
|34.5  |  | Attestation report on assessment of compliance with servicing criteria for asset-backed securities, Deutsche Bank Trust Company Americas, as custodian                                                                                                                      
|      | 
|34.6  |  | Attestation report on assessment of compliance with servicing criteria for asset-backed securities, CoreLogic Commercial Real Estate Services, Inc., as servicing function participant                                                                                      
|      | 
|34.7  |  | Attestation report on assessment of compliance with servicing criteria for asset-backed securities, National Tax Search, LLC, as servicing function participant                                                                                                             
|      | 
|34.8  |  | Attestation report on assessment of compliance with servicing criteria for asset-backed securities, Wells Fargo Bank, National Association, as master servicer for the Twin Cities Premium Outlets mortgage loan under the GSMS
2014-GC26 PSA (see Exhibit 34.1)            



|2 | The Boca Hamptons Plaza Portfolio mortgage loan is part of a loan combination comprised of the subject mortgage loan included in the issuing entity and one pari passu companion loan that is held outside the issuing
entity. The Boca Hamptons Plaza Portfolio mortgage loan and the related companion loan (together, the Boca Hamptons Plaza Loan Combination) are serviced pursuant to the CGCMT 2015-GC27 PSA. On July 1, 2015, the holder of the related
companion loan removed Midland Loan Services, a Division of PNC Bank, National Association as the special servicer with respect to the Boca Hampton Loan Combination, and appointed Rialto Capital Advisors, LLC as the successor special servicer with
respect to the Boca Hampton Loan Combination, as disclosed in the current report on Form 8-K with respect to the issuing entity filed on July 1, 2015.
|- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



---

|      |  |                                                                                                                                                                                                                                                                                         
|----- |  | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|      |  |                                                                                                                                                                                                                                                                                         
|34.9  |  | Attestation report on assessment of compliance with servicing criteria for asset-backed securities, LNR Partners, LLC, as general special servicer for the Twin Cities Premium Outlets mortgage loan under the GSMS 2014-GC26 PSA                                                       
|      | 
|34.10 |  | Attestation report on assessment of compliance with servicing criteria for asset-backed securities, CoreLogic Commercial Real Estate Services, Inc., as servicing function participant for the Twin Cities Premium Outlets mortgage loan
under the GSMS 2014-GC26 PSA (see Exhibit 34.6)
|      | 
|34.11 |  | Attestation report on assessment of compliance with servicing criteria for asset-backed securities, National Tax Search, LLC, as servicing function participant for the Twin Cities Premium Outlets mortgage loan under the GSMS
2014-GC26 PSA (see Exhibit 34.7)                       
|      | 
|34.12 |  | Attestation report on assessment of compliance with servicing criteria for asset-backed securities, U.S. Bank National Association, as certificate administrator for the Twin Cities Premium Outlets mortgage loan under the GSMS
2014-GC26 PSA                                         
|      | 
|34.13 |  | Attestation report on assessment of compliance with servicing criteria for asset-backed securities, U.S. Bank National Association, as custodian for the Twin Cities Premium Outlets mortgage loan under the GSMS 2014-GC26 PSA (see exhibit 34.12)                                     
|      | 
|34.14 |  | Attestation report on assessment of compliance with servicing criteria for asset-backed securities, Pentalpha Surveillance LLC, as operating advisor for the Twin Cities Premium Outlets mortgage loan under the GSMS 2014-GC26 PSA                                                     
|      | 
|34.15 |  | Attestation report on assessment of compliance with servicing criteria for asset-backed securities, Rialto Capital Advisors, LLC, as special servicer for the Boca Hamptons Plaza Portfolio mortgage loan2                                                                              
|      | 
|35.1  |  | Servicer compliance statement, Wells Fargo Bank, National Association, as master servicer                                                                                                                                                                                               
|      | 
|35.2  |  | Servicer compliance statement, Midland Loan Services, a Division of PNC Bank, National Association, as special servicer                                                                                                                                                                 
|      | 
|35.3  |  | Servicer compliance statement, Citibank, N.A., as certificate administrator                                                                                                                                                                                                             
|      | 
|35.4  |  | Servicer compliance statement, Deutsche Bank Trust Company Americas, as custodian                                                                                                                                                                                                       
|      | 
|35.5  |  | Servicer compliance statement, Wells Fargo Bank, National Association, as master servicer for the Twin Cities Premium Outlets mortgage loan under the GSMS 2014-GC26 PSA                                                                                                                
|      | 
|35.6  |  | Servicer compliance statement, LNR Partners, LLC, as general special servicer for the Twin Cities Premium Outlets mortgage loan under the GSMS 2014-GC26 PSA                                                                                                                            
|      | 
|35.7  |  | Servicer compliance statement, U.S. Bank National Association, as certificate administrator for the Twin Cities Premium Outlets mortgage loan under the GSMS 2014-GC26 PSA                                                                                                              
|      | 
|35.8  |  | Servicer compliance statement, U.S. Bank National Association, as custodian for the Twin Cities Premium Outlets mortgage loan under the GSMS 2014-GC26 PSA                                                                                                                              
|      | 
|35.9  |  | Servicer compliance statement, Rialto Capital Advisors, LLC, as special servicer for the Boca Hamptons Plaza Portfolio mortgage loan2                                                                                                                                                   



|(b) | The exhibits required to be filed by Registrant pursuant to Item 601of Regulation S-K are listed above and in the Exhibit Index that immediately follows the signature page hereof.
|--- | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



|(c) | Not Applicable
|--- | --------------





|2 | The Boca Hamptons Plaza Portfolio mortgage loan is part of a loan combination comprised of the subject mortgage loan included in the issuing entity and one pari passu companion loan that is held outside the issuing
entity. The Boca Hamptons Plaza Portfolio mortgage loan and the related companion loan (together, the Boca Hamptons Plaza Loan Combination) are serviced pursuant to the CGCMT 2015-GC27 PSA. On July 1, 2015, the holder of the related
companion loan removed Midland Loan Services, a Division of PNC Bank, National Association as the special servicer with respect to the Boca Hampton Loan Combination, and appointed Rialto Capital Advisors, LLC as the successor special servicer with
respect to the Boca Hampton Loan Combination, as disclosed in the current report on Form 8-K with respect to the issuing entity filed on July 1, 2015.
|- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



---

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.

Date: March 30, 2016

Citigroup Commercial Mortgage Securities Inc.

(Depositor)



|                           
|---------------------------
|/s/ Paul Vanderslice       
|Paul Vanderslice, President



---

EXHIBIT INDEX



|               |  |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 
|-------------- |  | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|Exhibit Number |  | Description                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     
|               | 
|4.1            |  | Pooling and Servicing Agreement, dated as of February 1, 2015 (the CGCMT 2015-GC27 PSA), by and among Citigroup Commercial Mortgage Securities, Inc., as depositor, Wells Fargo Bank, National Association, as master
servicer, Midland Loan Services, a Division of PNC Bank, National Association, as special servicer, Park Bridge Lender Services LLC, as operating advisor, Citibank, N.A., as certificate administrator, and Deutsche Bank Trust Company Americas, as
trustee (filed as Exhibit 4.1 to the registrants Current Report on Form 8-K dated February 9, 2015, and filed by the registrant on February 9, 2015, and is incorporated by reference herein).                                                                   
|               | 
|4.2            |  | Pooling and Servicing Agreement governing the issuance of the GSMS 2014-GC26 certificates, dated as of December 1, 2014 (the GSMS 2014-GC26 PSA), by and among GS Mortgage Securities Corporation II, as depositor,
Wells Fargo Bank, National Association, as master servicer, LNR Partners, LLC, as general special servicer, CWCapital Asset Management LLC, as Cypresswood Court Shopping Center special servicer, Pentalpha Surveillance LLC, as operating advisor, and
U.S. Bank National Association, as trustee and certificate administrator (filed as Exhibit 4.2 to the registrants Current Report on Form 8-K dated February 9, 2015, and filed by the registrant on February 9, 2015, and is incorporated by
reference herein)3.
|               | 
|10.1           |  | Mortgage Loan Purchase Agreement, dated as of February 1, 2015, between Citigroup Global Markets Realty Corp. and Citigroup Commercial Mortgage Securities Inc., pursuant to which Citigroup Global Markets Realty Corp. sold certain
mortgage loans to Citigroup Commercial Mortgage Securities Inc. (filed as Exhibit 10.1 to the registrants Current Report on Form 8-K dated February 9, 2015, and filed by the registrant on February 9, 2015, and is incorporated by reference
herein).                                                                                                                                                                                                                                                  
|               | 
|10.2           |  | Mortgage Loan Purchase Agreement, dated as of February 1, 2015, between Goldman Sachs Mortgage Company and Citigroup Commercial Mortgage Securities Inc., pursuant to which Goldman Sachs Mortgage Company sold certain mortgage loans
to Citigroup Commercial Mortgage Securities Inc. (filed as Exhibit 10.2 to the registrants Current Report on Form 8-K dated February 9, 2015, and filed by the registrant on February 9, 2015, and is incorporated by reference herein).                                                                                                                                                                                                                                                                
|               | 
|10.3           |  | Mortgage Loan Purchase Agreement, dated as of February 1, 2015, between Rialto Mortgage Finance, LLC and Citigroup Commercial Mortgage Securities Inc., pursuant to which Rialto Mortgage Finance, LLC sold certain mortgage loans to
Citigroup Commercial Mortgage Securities Inc. (filed as Exhibit 10.3 to the registrants Current Report on Form 8-K dated February 9, 2015, and filed by the registrant on February 9, 2015, and is incorporated by reference herein).                                                                                                                                                                                                                                                                    
|               | 
|10.4           |  | Mortgage Loan Purchase Agreement, dated as of February 1, 2015, between Redwood Commercial Mortgage Corporation and Citigroup Commercial Mortgage Securities Inc., pursuant to which Redwood Commercial Mortgage Corporation sold
certain mortgage loans to Citigroup Commercial Mortgage Securities Inc. (filed as Exhibit 10.4 to the registrants Current Report on Form 8-K dated February 9, 2015, and filed by the registrant on February 9, 2015, and is incorporated by
reference herein).                                                                                                                                                                                                                                              
|               | 
|10.5           |  | Mortgage Loan Purchase Agreement, dated as of February 1, 2015, between RAIT Funding, LLC and Citigroup Commercial Mortgage Securities Inc., pursuant to which RAIT Funding, LLC sold certain mortgage loans to Citigroup Commercial
Mortgage Securities Inc. (filed as Exhibit 10.5 to the registrants Current Report on Form 8-K dated February 9, 2015, and filed by the registrant on February 9, 2015, and is incorporated by
reference herein).                                                                                                                                                                                                                                                                                          



|3 | The Twin Cities Premium Outlets mortgage loan is part of a loan combination comprised of the subject mortgage loan included in the issuing entity and one pari passu companion loan that is held outside the issuing
entity. The Twin Cities Premium Outlets mortgage loan and the related companion loan is serviced pursuant to the GSMS 2014-GC26 PSA.
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|      |  |                                                                                                                                                                                                                                                                             
|31    |  | Rule 15d-14(d) Certification                                                                                                                                                                                                                                                
|      | 
|33.1  |  | Report on assessment of compliance with servicing criteria for asset-backed securities, Wells Fargo Bank, National Association, as master servicer                                                                                                                          
|      | 
|33.2  |  | Report on assessment of compliance with servicing criteria for asset-backed securities, Midland Loan Services, a Division of PNC Bank, National Association, as special servicer                                                                                            
|      | 
|33.3  |  | Report on assessment of compliance with servicing criteria for asset-backed securities, Park Bridge Lender Services LLC, as operating advisor                                                                                                                               
|      | 
|33.4  |  | Report on assessment of compliance with servicing criteria for asset-backed securities, Citibank, N.A., as certificate administrator                                                                                                                                        
|      | 
|33.5  |  | Report on assessment of compliance with servicing criteria for asset-backed securities, Deutsche Bank Trust Company Americas, as custodian                                                                                                                                  
|      | 
|33.6  |  | Report on assessment of compliance with servicing criteria for asset-backed securities, CoreLogic Commercial Real Estate Services, Inc., as servicing function participant                                                                                                  
|      | 
|33.7  |  | Report on assessment of compliance with servicing criteria for asset-backed securities, National Tax Search, LLC, as servicing function participant                                                                                                                         
|      | 
|33.8  |  | Report on assessment of compliance with servicing criteria for asset-backed securities, Wells Fargo Bank, National Association, as master servicer for the Twin Cities Premium Outlets mortgage loan under the GSMS 2014-GC26 PSA (see Exhibit 33.1)                        
|      | 
|33.9  |  | Report on assessment of compliance with servicing criteria for asset-backed securities, LNR Partners, LLC, as general special servicer for the Twin Cities Premium Outlets mortgage loan under the GSMS 2014-GC26 PSA                                                       
|      | 
|33.10 |  | Report on assessment of compliance with servicing criteria for asset-backed securities, CoreLogic Commercial Real Estate Services, Inc., as servicing function participant for the Twin Cities Premium Outlets mortgage loan under the
GSMS 2014-GC26 PSA (see Exhibit 33.6)
|      | 
|33.11 |  | Report on assessment of compliance with servicing criteria for asset-backed securities, National Tax Search, LLC, as servicing function participant for the Twin Cities Premium Outlets mortgage loan under the GSMS 2014-GC26 PSA (see exhibit 33.7)                       
|      | 
|33.12 |  | Report on assessment of compliance with servicing criteria for asset-backed securities, U.S. Bank National Association, as certificate administrator for the Twin Cities Premium Outlets mortgage loan under the GSMS 2014-GC26 PSA                                         
|      | 
|33.13 |  | Report on assessment of compliance with servicing criteria for asset-backed securities, U.S. Bank National Association, as custodian for the Twin Cities Premium Outlets mortgage loan under GSMS 2014-GC26 PSA (see exhibit
33.12)                                         
|      | 
|33.14 |  | Report on assessment of compliance with servicing criteria for asset-backed securities, Pentalpha Surveillance LLC, as operating advisor for the Twin Cities Premium Outlets mortgage loan under the GSMS 2014-GC26 PSA                                                     
|      | 
|33.15 |  | Report on assessment of compliance with servicing criteria for asset-backed securities, Rialto Capital Advisors, LLC, as special servicer for the Boca Hamptons Plaza Portfolio mortgage loan4                                                                              
|      | 
|34.1  |  | Attestation report on assessment of compliance with servicing criteria for asset-backed securities, Wells Fargo Bank, National Association, as master servicer                                                                                                              
|      | 
|34.2  |  | Attestation report on assessment of compliance with servicing criteria for asset-backed securities, Midland Loan Services, a Division of PNC Bank, National Association, as special
servicer                                                                                



|4 | The Boca Hamptons Plaza Portfolio mortgage loan is part of a loan combination comprised of the subject mortgage loan included in the issuing entity and one pari passu companion loan that is held outside the issuing
entity. The Boca Hamptons Plaza Portfolio mortgage loan and the related companion loan (together, the Boca Hamptons Plaza Loan Combination) are serviced pursuant to the CGCMT 2015-GC27 PSA. On July 1, 2015, the holder of the related
companion loan removed Midland Loan Services, a Division of PNC Bank, National Association as the special servicer with respect to the Boca Hampton Loan Combination, and appointed Rialto Capital Advisors, LLC as the successor special servicer with
respect to the Boca Hampton Loan Combination, as disclosed in the current report on Form 8-K with respect to the issuing entity filed on July 1, 2015.
|- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



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|      |  |                                                                                                                                                                                                                                                                                         
|----- |  | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|      |  |                                                                                                                                                                                                                                                                                         
|34.3  |  | Attestation report on assessment of compliance with servicing criteria for asset-backed securities, Park Bridge Lender Services LLC, as operating advisor                                                                                                                               
|      | 
|34.4  |  | Attestation report on assessment of compliance with servicing criteria for asset-backed securities, Citibank, N.A., as certificate administrator                                                                                                                                        
|      | 
|34.5  |  | Attestation report on assessment of compliance with servicing criteria for asset-backed securities, Deutsche Bank Trust Company Americas, as custodian                                                                                                                                  
|      | 
|34.6  |  | Attestation report on assessment of compliance with servicing criteria for asset-backed securities, CoreLogic Commercial Real Estate Services, Inc., as servicing function participant                                                                                                  
|      | 
|34.7  |  | Attestation report on assessment of compliance with servicing criteria for asset-backed securities, National Tax Search, LLC, as servicing function participant                                                                                                                         
|      | 
|34.8  |  | Attestation report on assessment of compliance with servicing criteria for asset-backed securities, Wells Fargo Bank, National Association, as master servicer for the Twin Cities Premium Outlets mortgage loan under the GSMS
2014-GC26 PSA (see Exhibit 34.1)                        
|      | 
|34.9  |  | Attestation report on assessment of compliance with servicing criteria for asset-backed securities, LNR Partners, LLC, as general special servicer for the Twin Cities Premium Outlets mortgage loan under the GSMS 2014-GC26 PSA                                                       
|      | 
|34.10 |  | Attestation report on assessment of compliance with servicing criteria for asset-backed securities, CoreLogic Commercial Real Estate Services, Inc., as servicing function participant for the Twin Cities Premium Outlets mortgage loan
under the GSMS 2014-GC26 PSA (see Exhibit 34.6)
|      | 
|34.11 |  | Attestation report on assessment of compliance with servicing criteria for asset-backed securities, National Tax Search, LLC, as servicing function participant for the Twin Cities Premium Outlets mortgage loan under the GSMS
2014-GC26 PSA (see Exhibit 34.7)                       
|      | 
|34.12 |  | Attestation report on assessment of compliance with servicing criteria for asset-backed securities, U.S. Bank National Association, as certificate administrator for the Twin Cities Premium Outlets mortgage loan under the GSMS
2014-GC26 PSA                                         
|      | 
|34.13 |  | Attestation report on assessment of compliance with servicing criteria for asset-backed securities, U.S. Bank National Association, as custodian for the Twin Cities Premium Outlets mortgage loan under the GSMS 2014-GC26 PSA (see exhibit 34.12)                                     
|      | 
|34.14 |  | Attestation report on assessment of compliance with servicing criteria for asset-backed securities, Pentalpha Surveillance LLC, as operating advisor for the Twin Cities Premium Outlets mortgage loan under the GSMS 2014-GC26 PSA                                                     
|      | 
|34.15 |  | Attestation report on assessment of compliance with servicing criteria for asset-backed securities, Rialto Capital Advisors, LLC, as special servicer for the Boca Hamptons Plaza Portfolio mortgage loan4                                                                              
|      | 
|35.1  |  | Servicer compliance statement, Wells Fargo Bank, National Association, as master servicer                                                                                                                                                                                               
|      | 
|35.2  |  | Servicer compliance statement, Midland Loan Services, a Division of PNC Bank, National Association, as special servicer                                                                                                                                                                 
|      | 
|35.3  |  | Servicer compliance statement, Citibank, N.A., as certificate administrator                                                                                                                                                                                                             
|      | 
|35.4  |  | Servicer compliance statement, Deutsche Bank Trust Company Americas, as custodian                                                                                                                                                                                                       
|      | 
|35.5  |  | Servicer compliance statement, Wells Fargo Bank, National Association, as master servicer for the Twin Cities Premium Outlets mortgage loan under the GSMS 2014-GC26 PSA                                                                                                                
|      | 
|35.6  |  | Servicer compliance statement, LNR Partners, LLC, as general special servicer for the Twin Cities Premium Outlets mortgage loan under the GSMS 2014-GC26 PSA                                                                                                                            



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|     |  |                                                                                                                                                                           
|---- |  | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|     |  |                                                                                                                                                                           
|35.7 |  | Servicer compliance statement, U.S. Bank National Association, as certificate administrator for the Twin Cities Premium Outlets mortgage loan under the GSMS 2014-GC26 PSA
|     | 
|35.8 |  | Servicer compliance statement, U.S. Bank National Association, as custodian for the Twin Cities Premium Outlets mortgage loan under the GSMS 2014-GC26 PSA                
|     | 
|35.9 |  | Servicer compliance statement, Rialto Capital Advisors, LLC, as special servicer for the Boca Hamptons Plaza Portfolio mortgage loan4