UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549





FORM 10-K







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

For the fiscal year ended December 31, 2016

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

333-189017-08

(Commission File Number of issuing entity)

0001636708

(Central
Index Key Number of issuing entity)





Citigroup Commercial Mortgage Trust 2015-GC29

(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)

FCRE REL, LLC

(Central
Index Key Number: 0001636352)

(Exact name of sponsor as specified in its charter)







|                                                                    |  |                                     
|------------------------------------------------------------------- |  | ------------------------------------
|New York                                                            |  | 47-3737451
47-3720890
47-6961976    
|(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    ☒  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    ☒  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.    ☒  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   |  | ☒  (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    ☒  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

The portfolio of properties securing the Selig Office Portfolio mortgage loan constitutes a significant obligor within the meaning of Item 1101(k)(2) of
Regulation AB and as disclosed in the prospectus supplement for Citigroup Commercial Mortgage Trust 2015-GC29 filed on April 15, 2015. With respect to the portfolio of properties securing the Selig Office Portfolio mortgage loan, the most
recent unaudited net operating income was $31,654,160 from January 1, 2016 through December 31, 2016.

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:

Citibank, N.A. (Citibank) is acting as the Certificate Administrator of this
commercial mortgage-backed securities (CMBS) transaction. In the ordinary course of business, Citibank is involved in a number of legal proceedings, including in connection with its role as trustee of certain residential
mortgage-backed securities (RMBS) transactions. Certain of these Citibank as trustee-related matters are disclosed herein.

On June 18, 2014, a civil action was filed against 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 (the Trust Indenture Act), 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. Subsequently, plaintiffs voluntarily dismissed all claims with respect to two of the three trusts. This
case is still pending as to the one remaining trust at issue.

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 (the Streit Act). Citibanks
motion to dismiss was fully briefed as of April 15, 2016. Following oral argument on Citibanks motion to dismiss, plaintiffs filed an amended complaint on August 5, 2016. Citibanks motion to dismiss the amended complaint was
fully briefed as of October 21, 2016. Citibank awaits a decision.

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 jointly briefed 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 also in front of Judge Carter. Defendants joint motion to dismiss was fully briefed as of March 22, 2016. On September 30, 2016, the court granted Citibanks motion to dismiss the complaint without
prejudice for lack of subject matter jurisdiction. On October 14, 2016, FDIC filed a motion for reargument or relief from judgment from the courts dismissal order. On October 25, 2016, the court granted leave for defendants to file
an opposition brief. Defendants filed their opposition on November 15, 2016, and plaintiff filed its reply brief on November 22, 2016. Citibank awaits a decision from the court on the plaintiffs motion.

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:

Deutsche Bank Trust Company Americas (DBTCA) and Deutsche Bank National Trust Company (DBNTC) have been sued by
investors in civil litigation concerning their role as trustees of certain residential mortgage-backed securities (RMBS) trusts.

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 DBNTC and DBTCA 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 (the
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. On March 22, 2016, plaintiffs filed an amended complaint in federal court. In the amended complaint, in connection with 62 trusts governed by indenture agreements, plaintiffs assert claims
for breach of contract, violation of the TIA, breach of fiduciary duty, and breach of duty to avoid conflicts of interest. The amended complaint alleges that the trusts at issue have suffered total realized collateral losses of U.S. $9.8 billion,
but the complaint does not include a demand for money damages in a sum certain. On July 15, 2016, DBNTC and DBTCA filed a motion to dismiss the amended complaint. On January 23, 2017, the court granted in part and denied in part DBNTC and
DBTCAs motion to dismiss. The court granted the motion to dismiss with respect to plaintiffs conflict-of-interest claim, thereby dismissing it, and denied the motion to dismiss with respect to plaintiffs breach of contract claim
(except as noted below) and claim for violation of the TIA, thereby allowing those claims to proceed. On January 26, 2017, the parties filed a joint stipulation and proposed order dismissing plaintiffs claim for breach of fiduciary duty.
On January 27, 2017, the court



---

entered the parties joint stipulation and ordered that plaintiffs claim for breach of fiduciary duty be dismissed. On February 3, 2017, following a hearing concerning DBNTC and
DBTCAs motion to dismiss on February 2, 2017, the court issued a short form order dismissing (i) plaintiffs representation and warranty claims as to 21 trusts whose originators and/or sponsors had entered bankruptcy and the
deadline for asserting claims against such originators and/or sponsors had passed as of 2009 and (ii) plaintiffs claims to the extent they were premised upon any alleged pre-event of default duty to terminate servicers. Discovery is
ongoing.

On March 25, 2016, the BlackRock plaintiffs filed a state court action against DBTCA in the Superior Court of
California, Orange County with respect to 513 trusts. On May 18, 2016, plaintiffs filed an amended complaint with respect to 465 trusts, and included DBNTC as an additional defendant. The amended complaint asserts three causes of
action: breach of contract; breach of fiduciary duty; and breach of the duty to avoid conflicts of interest. Plaintiffs purport to bring the action on behalf of themselves and all other current owners of certificates in the 465
trusts. The amended complaint alleges that the trusts at issue have suffered total realized collateral losses of U.S. $75.7 billion, but does not include a demand for money damages in a sum certain. On August 22, 2016, DBNTC and DBTCA
filed a demurrer as to plaintiffs breach of fiduciary duty cause of action and breach of the duty to avoid conflicts of interest cause of action and motion to strike as to plaintiffs breach of contract cause of action. On
October 18, 2016, the court granted DBNTC and DBTCAs demurrer, providing plaintiffs with thirty days leave to amend, and denied DBNTC and DBTCAs motion to strike. Plaintiffs did not further amend their complaint, and on
December 19, 2016, DBNTC and DBTCA filed an answer to the amended complaint. Discovery is ongoing.

On December 30, 2015, IKB
International, S.A. in Liquidation and IKB Deutsche Industriebank A.G. (collectively, IKB), as an investor in 37 RMBS trusts, filed a summons with notice in the Supreme Court of the State of New York, New York County, against DBNTC and
DBTCA as trustees of the trusts. On May 27, 2016, IKB served its complaint asserting claims for breach of contract, breach of fiduciary duty, breach of duty to avoid conflicts of interest, violation of New Yorks Streit Act, violation
of the TIA, violation of Regulation AB, and violation of Section 9 of the Uniform Commercial Code. IKB alleges that DBNTC and DBTCA are liable for over U.S. $268 million in damages. On October 5, 2016, DBNTC and DBTCA, together with
several other trustees defending lawsuits by IKB, filed a joint motion to dismiss. On January 6, 2017, IKB filed a notice of discontinuance, voluntarily dismissing with prejudice all claims as to three trusts. As of January 17, 2017, DBNTC
and DBTCAs motion to dismiss has been briefed and is awaiting decision by the court. Certain limited discovery is permitted to go forward while the motion to dismiss is pending.

It is DBTCAs belief that it 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 April 15, 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:
| | --- | ------------------------------------------------------------------------------------------



|              |  |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        
|------------- |  | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|ExhibitNumber |  | Description                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            
|              | 
|4.1           |  | Pooling and Servicing Agreement, dated as of April 1, 2015 (the CGCMT 2015-GC29 PSA), by and among Citigroup Commercial Mortgage Securities, Inc., 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, Situs Holdings, 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/A dated April 15, 2015, and filed by the registrant on July 17, 2015 under Commission File No. 333-189017-08, and is incorporated by
reference herein).                       
|              | 
|4.2           |  | Pooling and Servicing Agreement, dated as of May 1, 2015 (the COMM 2015-CCRE23 PSA), by and among Deutsche Mortgage & Asset Receiving Corporation, as depositor, Midland Loan Services, a Division of PNC Bank,
National Association, as master servicer, CWCapital Asset Management LLC, as special servicer, Pentalpha Surveillance LLC, as operating advisor, Wilmington Trust, National Association, as trustee, and Wells Fargo Bank, National Association, as
certificate administrator, paying agent and custodian (filed as Exhibit 10.1 to the registrants Current Report on Form 8-K/A dated May 15, 2015, and filed by the registrant on June 1, 2015 under Commission File No. 333-189017-08, and
is incorporated by reference herein)1.
|              | 
|4.3           |  | Pooling and Servicing Agreement, dated as of October 1, 2015 (the JPMBB 2015-C32 PSA), by and among J.P. Morgan Chase Commercial Mortgage Securities Corp., as depositor, Wells Fargo Bank, National Association, as
master servicer, LNR Partners, LLC, as special servicer, Pentalpha Surveillance LLC, as senior trust advisor, Wilmington Trust, National Association, as trustee, and Wells Fargo Bank, National Association, as certificate administrator (filed as
Exhibit 4 to the registrants Current Report on Form 8-K dated October 29, 2015, and filed by the registrant on October 30, 2015 under Commission File No. 333-189017-08, and is incorporated by reference herein)2.                                                       
|              | 
|10.1          |  | Mortgage Loan Purchase Agreement, dated as of April 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 April 15, 2015, and filed by the registrant on April 15, 2015 under Commission
File No. 333-189017-08, and is incorporated by reference herein).                                                                                                                                                                                                                        
|              | 
|10.2          |  | Mortgage Loan Purchase Agreement, dated as of April 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 April 15, 2015, and filed by the registrant on April 15, 2015 under Commission File No. 333-189017-08, and is
incorporated by reference herein).                                                                                                                                                                                                                                      
|              | 
|10.3          |  | Mortgage Loan Purchase Agreement, dated as of April 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 April 15, 2015, and filed by the registrant on April 15, 2015 under Commission File No. 333-189017-08, and is
incorporated by reference herein).                                                                                                                                                                                                                                          



|1 | The 3 Columbus Circle mortgage loan, which represented approximately 8.9% of the initial pool balance of the issuing entity, is part of a loan combination comprised of the subject mortgage loan included in the issuing
entity and four pari passu companion loans that are held outside the issuing entity. The 3 Columbus Circle mortgage loan and the related companion loans are serviced pursuant to the COMM 2015-CCRE23 PSA.
|- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

|2 | The Eastmont Town Center mortgage loan, which represented approximately 1.1% of the initial pool balance of the issuing entity, 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 Eastmont Town Center mortgage loan and the related companion loan are serviced pursuant to the JPMBB 2015-C32 PSA.
|- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



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|      |  |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                
|----- |  | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|      | 
|10.4  |  | Mortgage Loan Purchase Agreement, dated as of April 1, 2015, between FCRE REL, LLC and Citigroup Commercial Mortgage Securities Inc., pursuant to which FCRE REL, LLC 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 April 15, 2015, and filed by the registrant on April 15, 2015 under Commission File No. 333-189017-08, 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, Midland Loan Services, a Division of PNC 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 (see Exhibit 33.1)                                                                                                                                                                                                                                                                            
|      | 
|33.3  |  | Report on assessment of compliance with servicing criteria for asset-backed securities, Situs Holdings, 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, Midland Loan Services, a Division of PNC Bank, National Association, as master servicer for the 3 Columbus Circle mortgage loan under the COMM
2015-CCRE23 PSA (see Exhibit 33.1)                                                                                                                                                                                                      
|      | 
|33.7  |  | Report on assessment of compliance with servicing criteria for asset-backed securities, CWCapital Asset Management LLC, as special servicer for the 3 Columbus Circle mortgage loan under the COMM 2015-CCRE23 PSA                                                                                                                                                                                                                                                             
|      | 
|33.8  |  | Report on assessment of compliance with servicing criteria for asset-backed securities, Wells Fargo Bank, National Association, as certificate administrator for the 3 Columbus Circle mortgage loan under the COMM 2015-CCRE23
PSA                                                                                                                                                                                                                                            
|      | 
|33.9  |  | Report on assessment of compliance with servicing criteria for asset-backed securities, Wells Fargo Bank, National Association, as custodian for the 3 Columbus Circle mortgage loan under the COMM 2015-CCRE23 PSA                                                                                                                                                                                                                                                            
|      | 
|33.10 |  | Report on assessment of compliance with servicing criteria for asset-backed securities, Pentalpha Surveillance LLC, as operating advisor for the 3 Columbus Circle mortgage loan under the COMM 2015-CCRE23 PSA                                                                                                                                                                                                                                                                
|      | 
|33.11 |  | Report on assessment of compliance with servicing criteria for asset-backed securities, Wells Fargo Bank, National Association, as master servicer for the Eastmont Town Center mortgage loan under the JPMBB 2015-C32 PSA                                                                                                                                                                                                                                                     
|      | 
|33.12 |  | Report on assessment of compliance with servicing criteria for asset-backed securities, Wells Fargo Bank, National Association, as certificate administrator for the Eastmont Town Center mortgage loan under the JPMBB 2015-C32 PSA
(see Exhibit 33.8)                                                                                                                                                                                                                        
|      | 
|33.13 |  | Report on assessment of compliance with servicing criteria for asset-backed securities, Wells Fargo Bank, National Association, as custodian for the Eastmont Town Center mortgage loan under the JPMBB 2015-C32 PSA (see Exhibit
33.9)                                                                                                                                                                                                                                        
|      | 
|33.14 |  | Report on assessment of compliance with servicing criteria for asset-backed securities, Pentalpha Surveillance LLC, as senior trust advisor for the Eastmont Town Center mortgage loan under the JPMBB 2015-C32 PSA (see Exhibit
33.10)                                                                                                                                                                                                                                        



---

|      |  |                                                                                                                                                                                                                                                                                      
|----- |  | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|      | 
|34.1  |  | Attestation report on assessment of compliance with servicing criteria for asset-backed securities, Midland Loan Services, a Division of PNC 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 (see Exhibit 34.1)                                                                      
|      | 
|34.3  |  | Attestation report on assessment of compliance with servicing criteria for asset-backed securities, Situs Holdings, 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, Midland Loan Services, a Division of PNC Bank, National Association, as master servicer for the 3 Columbus Circle mortgage loan
under the COMM 2015-CCRE23 PSA (see Exhibit 34.1)
|      | 
|34.7  |  | Attestation report on assessment of compliance with servicing criteria for asset-backed securities, CWCapital Asset Management LLC, as special servicer for the 3 Columbus Circle mortgage loan under the COMM 2015-CCRE23 PSA                                                       
|      | 
|34.8  |  | Attestation report on assessment of compliance with servicing criteria for asset-backed securities, Wells Fargo Bank, National Association, as certificate administrator for the 3 Columbus Circle mortgage loan under the COMM
2015-CCRE23 PSA                                      
|      | 
|34.9  |  | Attestation report on assessment of compliance with servicing criteria for asset-backed securities, Wells Fargo Bank, National Association, as custodian for the 3 Columbus Circle mortgage loan under the COMM 2015-CCRE23
PSA                                                      
|      | 
|34.10 |  | Attestation report on assessment of compliance with servicing criteria for asset-backed securities, Pentalpha Surveillance LLC, as operating advisor for the 3 Columbus Circle mortgage loan under the COMM 2015-CCRE23 PSA                                                          
|      | 
|34.11 |  | Attestation report on assessment of compliance with servicing criteria for asset-backed securities, Wells Fargo Bank, National Association, as master servicer for the Eastmont Town Center mortgage loan under the JPMBB 2015-C32
PSA                                               
|      | 
|34.12 |  | Attestation report on assessment of compliance with servicing criteria for asset-backed securities, Wells Fargo Bank, National Association, as certificate administrator for the Eastmont Town Center mortgage loan under the JPMBB
2015-C32 PSA (see Exhibit 34.8)                  
|      | 
|34.13 |  | Attestation report on assessment of compliance with servicing criteria for asset-backed securities, Wells Fargo Bank, National Association, as custodian for the Eastmont Town Center mortgage loan under the JPMBB 2015-C32 PSA (see
Exhibit 34.9)                                  
|      | 
|34.14 |  | Attestation report on assessment of compliance with servicing criteria for asset-backed securities, Pentalpha Surveillance LLC, as senior trust advisor for the Eastmont Town Center mortgage loan under the JPMBB 2015-C32 PSA (see
Exhibit 34.10)                                  
|      | 
|35.1  |  | Servicer compliance statement, Midland Loan Services, a Division of PNC Bank, National Association, as master servicer                                                                                                                                                               



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|     |  |                                                                                                                                                                                                                 
|---- |  | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|     | 
|35.2 |  | Servicer compliance statement, Midland Loan Services, a Division of PNC Bank, National Association, as special servicer (see Exhibit 35.1)                                                                      
|     | 
|35.3 |  | Servicer compliance statement, Citibank, N.A., as certificate administrator                                                                                                                                     
|     | 
|35.4 |  | Servicer compliance statement, Midland Loan Services, a Division of PNC Bank, National Association, as master servicer for the 3 Columbus Circle mortgage loan under the COMM 2015-CCRE23 PSA (see exhibit 35.1)
|     | 
|35.5 |  | Servicer compliance statement, Wells Fargo Bank, National Association, as certificate administrator for the 3 Columbus Circle mortgage loan under the COMM 2015-CCRE23 PSA                                      
|     | 
|35.6 |  | Servicer compliance statement, Wells Fargo Bank, National Association, as master servicer for the Eastmont Town Center mortgage loan under the JPMBB 2015-C32 PSA                                               
|     | 
|35.7 |  | Servicer compliance statement, Wells Fargo Bank, National Association, as certificate administrator for the Eastmont Town Center mortgage loan under the JPMBB 2015-C32 PSA                                     



|(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
|--- | --------------



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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 31, 2017                         
|                                             
|Citigroup Commercial Mortgage Securities Inc.
|(Depositor)                                  
|                                             
|/s/ Paul Vanderslice                         
|Paul Vanderslice, President                  



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EXHIBIT INDEX



|              |  |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        
|------------- |  | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|ExhibitNumber |  | Description                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            
|              | 
|4.1           |  | Pooling and Servicing Agreement, dated as of April 1, 2015 (the CGCMT 2015-GC29 PSA), by and among Citigroup Commercial Mortgage Securities, Inc., 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, Situs Holdings, 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/A dated April 15, 2015, and filed by the registrant on July 17, 2015 under Commission File No. 333-189017-08, and is incorporated by
reference herein).                       
|              | 
|4.2           |  | Pooling and Servicing Agreement, dated as of May 1, 2015 (the COMM 2015-CCRE23 PSA), by and among Deutsche Mortgage & Asset Receiving Corporation, as depositor, Midland Loan Services, a Division of PNC Bank,
National Association, as master servicer, CWCapital Asset Management LLC, as special servicer, Pentalpha Surveillance LLC, as operating advisor, Wilmington Trust, National Association, as trustee, and Wells Fargo Bank, National Association, as
certificate administrator, paying agent and custodian (filed as Exhibit 10.1 to the registrants Current Report on Form 8-K/A dated May 15, 2015, and filed by the registrant on June 1, 2015 under Commission
File No. 333-189017-08, and is incorporated by reference herein)3.
|              | 
|4.3           |  | Pooling and Servicing Agreement, dated as of October 1, 2015 (the JPMBB 2015-C32 PSA), by and among J.P. Morgan Chase Commercial Mortgage Securities Corp., as depositor, Wells Fargo Bank, National Association, as
master servicer, LNR Partners, LLC, as special servicer, Pentalpha Surveillance LLC, as senior trust advisor, Wilmington Trust, National Association, as trustee, and Wells Fargo Bank, National Association, as certificate administrator (filed as
Exhibit 4 to the registrants Current Report on Form 8-K dated October 29, 2015, and filed by the registrant on October 30, 2015 under Commission File No. 333-189017-08, and is incorporated by reference herein)4.                                                       
|              | 
|10.1          |  | Mortgage Loan Purchase Agreement, dated as of April 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 April 15, 2015, and filed by the registrant on April 15, 2015 under Commission
File No. 333-189017-08, and is incorporated by reference herein).                                                                                                                                                                                                                        
|              | 
|10.2          |  | Mortgage Loan Purchase Agreement, dated as of April 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 April 15, 2015, and filed by the registrant on April 15, 2015 under Commission File No. 333-189017-08, and is
incorporated by reference herein).                                                                                                                                                                                                                                      
|              | 
|10.3          |  | Mortgage Loan Purchase Agreement, dated as of April 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 April 15, 2015, and filed by the registrant on April 15, 2015 under Commission File No. 333-189017-08, and is
incorporated by reference herein).                                                                                                                                                                                                                                          



|3 | The 3 Columbus Circle mortgage loan, which represented approximately 8.9% of the initial pool balance of the issuing entity, is part of a loan combination comprised of the subject mortgage loan included in the issuing
entity and four pari passu companion loans that are held outside the issuing entity. The 3 Columbus Circle mortgage loan and the related companion loans are serviced pursuant to the COMM 2015-CCRE23 PSA.
|- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

|4 | The Eastmont Town Center mortgage loan, which represented approximately 1.1% of the initial pool balance of the issuing entity, 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 Eastmont Town Center mortgage loan and the related companion loan are serviced pursuant to the JPMBB 2015-C32 PSA.
|- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



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|      |  |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                
|----- |  | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|      | 
|10.4  |  | Mortgage Loan Purchase Agreement, dated as of April 1, 2015, between FCRE REL, LLC and Citigroup Commercial Mortgage Securities Inc., pursuant to which FCRE REL, LLC 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 April 15, 2015, and filed by the registrant on April 15, 2015 under Commission File No. 333-189017-08, 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, Midland Loan Services, a Division of PNC 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 (see Exhibit 33.1)                                                                                                                                                                                                                                                                            
|      | 
|33.3  |  | Report on assessment of compliance with servicing criteria for asset-backed securities, Situs Holdings, 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, Midland Loan Services, a Division of PNC Bank, National Association, as master servicer for the 3 Columbus Circle mortgage loan under the COMM
2015-CCRE23 PSA (see Exhibit 33.1)                                                                                                                                                                                                      
|      | 
|33.7  |  | Report on assessment of compliance with servicing criteria for asset-backed securities, CWCapital Asset Management LLC, as special servicer for the 3 Columbus Circle mortgage loan under the COMM 2015-CCRE23 PSA                                                                                                                                                                                                                                                             
|      | 
|33.8  |  | Report on assessment of compliance with servicing criteria for asset-backed securities, Wells Fargo Bank, National Association, as certificate administrator for the 3 Columbus Circle mortgage loan under the COMM 2015-CCRE23
PSA                                                                                                                                                                                                                                            
|      | 
|33.9  |  | Report on assessment of compliance with servicing criteria for asset-backed securities, Wells Fargo Bank, National Association, as custodian for the 3 Columbus Circle mortgage loan under the COMM 2015-CCRE23 PSA                                                                                                                                                                                                                                                            
|      | 
|33.10 |  | Report on assessment of compliance with servicing criteria for asset-backed securities, Pentalpha Surveillance LLC, as operating advisor for the 3 Columbus Circle mortgage loan under the COMM 2015-CCRE23 PSA                                                                                                                                                                                                                                                                
|      | 
|33.11 |  | Report on assessment of compliance with servicing criteria for asset-backed securities, Wells Fargo Bank, National Association, as master servicer for the Eastmont Town Center mortgage loan under the JPMBB 2015-C32 PSA                                                                                                                                                                                                                                                     
|      | 
|33.12 |  | Report on assessment of compliance with servicing criteria for asset-backed securities, Wells Fargo Bank, National Association, as certificate administrator for the Eastmont Town Center mortgage loan under the JPMBB 2015-C32 PSA
(see Exhibit 33.8)                                                                                                                                                                                                                        
|      | 
|33.13 |  | Report on assessment of compliance with servicing criteria for asset-backed securities, Wells Fargo Bank, National Association, as custodian for the Eastmont Town Center mortgage loan under the JPMBB 2015-C32 PSA (see Exhibit
33.9)                                                                                                                                                                                                                                        



---

|      |  |                                                                                                                                                                                                                                                                                      
|----- |  | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|      | 
|33.14 |  | Report on assessment of compliance with servicing criteria for asset-backed securities, Pentalpha Surveillance LLC, as senior trust advisor for the Eastmont Town Center mortgage loan under the JPMBB 2015-C32 PSA (see Exhibit
33.10)                                              
|      | 
|34.1  |  | Attestation report on assessment of compliance with servicing criteria for asset-backed securities, Midland Loan Services, a Division of PNC 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 (see Exhibit 34.1)                                                                      
|      | 
|34.3  |  | Attestation report on assessment of compliance with servicing criteria for asset-backed securities, Situs Holdings, 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, Midland Loan Services, a Division of PNC Bank, National Association, as master servicer for the 3 Columbus Circle mortgage loan
under the COMM 2015-CCRE23 PSA (see Exhibit 34.1)
|      | 
|34.7  |  | Attestation report on assessment of compliance with servicing criteria for asset-backed securities, CWCapital Asset Management LLC, as special servicer for the 3 Columbus Circle mortgage loan under the COMM 2015-CCRE23 PSA                                                       
|      | 
|34.8  |  | Attestation report on assessment of compliance with servicing criteria for asset-backed securities, Wells Fargo Bank, National Association, as certificate administrator for the 3 Columbus Circle mortgage loan under the COMM
2015-CCRE23 PSA                                      
|      | 
|34.9  |  | Attestation report on assessment of compliance with servicing criteria for asset-backed securities, Wells Fargo Bank, National Association, as custodian for the 3 Columbus Circle mortgage loan under the COMM 2015-CCRE23
PSA                                                      
|      | 
|34.10 |  | Attestation report on assessment of compliance with servicing criteria for asset-backed securities, Pentalpha Surveillance LLC, as operating advisor for the 3 Columbus Circle mortgage loan under the COMM 2015-CCRE23 PSA                                                          
|      | 
|34.11 |  | Attestation report on assessment of compliance with servicing criteria for asset-backed securities, Wells Fargo Bank, National Association, as master servicer for the Eastmont Town Center mortgage loan under the JPMBB 2015-C32
PSA                                               
|      | 
|34.12 |  | Attestation report on assessment of compliance with servicing criteria for asset-backed securities, Wells Fargo Bank, National Association, as certificate administrator for the Eastmont Town Center mortgage loan under the JPMBB
2015-C32 PSA (see Exhibit 34.8)                  
|      | 
|34.13 |  | Attestation report on assessment of compliance with servicing criteria for asset-backed securities, Wells Fargo Bank, National Association, as custodian for the Eastmont Town Center mortgage loan under the JPMBB 2015-C32 PSA (see
Exhibit 34.9)                                  
|      | 
|34.14 |  | Attestation report on assessment of compliance with servicing criteria for asset-backed securities, Pentalpha Surveillance LLC, as senior trust advisor for the Eastmont Town Center mortgage loan under the JPMBB 2015-C32 PSA (see
Exhibit 34.10)                                  



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|     |  |                                                                                                                                                                                                                 
|---- |  | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|     | 
|35.1 |  | Servicer compliance statement, Midland Loan Services, a Division of PNC Bank, National Association, as master servicer                                                                                          
|     | 
|35.2 |  | Servicer compliance statement, Midland Loan Services, a Division of PNC Bank, National Association, as special servicer (see Exhibit 35.1)                                                                      
|     | 
|35.3 |  | Servicer compliance statement, Citibank, N.A., as certificate administrator                                                                                                                                     
|     | 
|35.4 |  | Servicer compliance statement, Midland Loan Services, a Division of PNC Bank, National Association, as master servicer for the 3 Columbus Circle mortgage loan under the COMM 2015-CCRE23 PSA (see exhibit 35.1)
|     | 
|35.5 |  | Servicer compliance statement, Wells Fargo Bank, National Association, as certificate administrator for the 3 Columbus Circle mortgage loan under the COMM 2015-CCRE23 PSA                                      
|     | 
|35.6 |  | Servicer compliance statement, Wells Fargo Bank, National Association, as master servicer for the Eastmont Town Center mortgage loan under the JPMBB 2015-C32 PSA                                               
|     | 
|35.7 |  | Servicer compliance statement, Wells Fargo Bank, National Association, as certificate administrator for the Eastmont Town Center mortgage loan under the JPMBB 2015-C32 PSA