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

FORM 10-D

ASSET-BACKED ISSUER
DISTRIBUTION REPORT PURSUANT TO SECTION 13 OR 15(d) OF
THE SECURITIES EXCHANGE ACT OF 1934

For the monthly distribution period from
December 11, 2021  to  January 12, 2022

Commission File Number of Issuing entity: 333-191331-08

Central Index Key Number of issuing entity:0001639694

GS Mortgage Securities Trust 2015-GC30
(Exact name of issuing entity as specified in its charter)

Commission File Number of depositor: 333-191331

Central Index Key Number of depositor:0001004158

GS Mortgage Securities Corporation II
(Exact name of depositor as specified in its charter)

Central Index Key Number of sponsor (if applicable):0001541502
0001541001
0001558761
0001682511
0001576832

Goldman Sachs Mortgage Company
Citigroup Global Markets Realty Corp.
Cantor Commercial Real Estate Lending, L.P.
Starwood Mortgage Funding I LLC
MC-Five Mile Commercial Mortgage Finance LLC
(Exact name of sponsor(s) as specified in its charters)

Leah Nivison (212) 902-1000
(Name and telephone number, including area code, of the person to contact in connection with this filing)

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

38-3970768
38-3970769
(I.R.S. Employer Identification No.)

c/o U.S. Bank National Association
190 S. LaSalle Street, Chicago, IL
Chicago, IL
(Address of principal executive offices of issuing entity)

60603
(Zip Code)

(312) 332-7530
(Telephone number, including area code)

Not Applicable
(Former name, former address, if changed since last report)

Registered/reporting pursuant to (check one)

Name of exchange
Title of ClassSection 12(b)Section 12(g)Section 15(d)(If Section 12(b))
A-1_______
A-2_______
A-3_______
A-4_______
A-AB_______
X-A_______
X-B_______
A-S_______
B_______
PEZ_______
C_______
D_______
X-D_______

Indicate by check mark whether the registrant (1) filed all reports required to be filed by Section 13 or 15(d) of the Securities and 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 ☐

PART I - DISTRIBUTION INFORMATION

Item 1.  Distribution and Pool Performance Information.
On January 12, 2022 a distribution was made to holders of the certificates issued by GS Mortgage Securities Trust 2015-GC30. The distribution report is attached as an Exhibit to this Form 10-D, please see item 9(b), Exhibit 99.1 for the related information.

No assets securitized by GS Mortgage Securities Corporation II (The "Depositor") and held by GS Mortgage Securities Trust 2015-GC30 were the subject of a demand to repurchase for breach of the representations and warranties contained in the underlying transaction documents during the distribution period from December 11, 2021  to  January 12, 2022.

The Depositor has filed a Form ABS-15G on February 25, 2021. The CIK number of the Depositor is 0001004158. There is no new activity to report at this time.

Goldman Sachs Mortgage Company (GSMC), one of the sponsors, has filed a Form ABS-15G on November 12, 2021. The CIK number of GSMC is 0001541502. There is no new activity to report at this time.

Cantor Commercial Real Estate Lending L.P. (CCRE), one of the sponsors, has filed a Form ABS-15G on February 16, 2021. The CIK number of CCRE is 0001558761. There is no new activity to report at this time.

Citigroup Global Markets Realty Corp.(CGMRC), one of the sponsors, has filed a Form ABS-15G on February 09, 2021. The CIK number of CGMRC is 0001541001. There is no new activity to report at this time.

MC-Five Mile Commercial Mortgage Finance LLC (Five Mile), one of the sponsors, has filed a Form ABS-15G on February 16, 2021. The CIK number of Five Mile is 0001576832. There is no new activity to report at this time.

Starwood Mortgage Funding I LLC, one of the sponsors, has filed a Form ABS-15G on January 22, 2021. The CIK number of Starwood Mortgage Funding I LLC is 0001682511. There is no new activity to report at this time.

Reported Additional Debt: With respect to the Selig Office Portfolio Mortgage Loan, in accordance with the terms of the related loan agreement, the borrower issued a promissory note to Goldman Sachs Bank USA, dated December 29, 2020, evidencing a $34,100,000 loan that is secured by the related Mortgaged Property and is pari passu with the Selig Office Portfolio Mortgage Loan.

Item 1A. Asset-Level Information.
Not applicable.

Item 1B. Asset Representations Reviewer and Investor Communication.
Not applicable.

Item 2.  Legal Proceedings.
In the last several years, U.S. Bank National Association (“U.S. Bank”) and other large financial institutions have been sued in their capacity as trustee or successor trustee for certain residential mortgage backed securities ("RMBS") trusts.  The complaints, primarily filed by investors or investor groups against U.S. Bank and similar institutions, allege the trustees caused losses to investors as a result of alleged failures by the sponsors, mortgage loan sellers and servicers to comply with the governing agreements for these RMBS trusts.  Plaintiffs generally assert causes of action based upon the trustees’ purported failures to enforce repurchase obligations of mortgage loan sellers for alleged breaches of representations and warranties, notify securityholders of purported events of default allegedly caused by breaches of servicing standards by mortgage loan servicers and abide by a heightened standard of care following alleged events of default.

U.S. Bank denies liability and believes that it has performed its obligations under the RMBS trusts in good faith, that its actions were not the cause of losses to investors, that it has meritorious defenses, and it has contested and intends to continue contesting the plaintiffs’ claims vigorously.  However, U.S. Bank cannot assure you as to the outcome of any of the litigation, or the possible impact of these litigations on the trustee or the RMBS trusts.  

On March 9, 2018, a law firm purporting to represent fifteen Delaware statutory trusts (the “DSTs”) that issued securities backed by student loans (the “Student Loans”) filed a lawsuit in the Delaware Court of Chancery against U.S. Bank National Association (“U.S. Bank”) in its capacities as indenture trustee and successor special servicer, and three other institutions in their respective transaction capacities, with respect to the DSTs and the Student Loans.  This lawsuit is captioned The National Collegiate Student Loan Master Trust I, et al. v. U.S. Bank National Association, et al., C.A. No. 2018-0167-JRS (Del. Ch.) (the “NCMSLT Action”).  The complaint, as amended on June 15, 2018, alleged that the DSTs have been harmed as a result of purported misconduct or omissions by the defendants concerning administration of the trusts and special servicing of the Student Loans.  Since the filing of the NCMSLT Action, certain Student Loan borrowers have made assertions against U.S. Bank concerning special servicing that appear to be based on certain allegations made on behalf of the DSTs in the NCMSLT Action.

U.S. Bank believes that it has performed its obligations as indenture trustee and special servicer in good faith and in compliance in all material respects with the terms of the agreements governing the DSTs (the “Governing Agreements”), and accordingly that the claims against it in the NCMSLT Action are without merit

U.S. Bank has filed a motion seeking dismissal of the operative complaint in its entirety with prejudice pursuant to Chancery Court Rules 12(b)(1) and 12(b)(6) or, in the alternative, a stay of the case while other prior filed disputes involving the DSTs and the Student Loans are litigated.  On November 7, 2018, the Court ruled that the case should be stayed in its entirety pending resolution of the first-filed cases.  On January 21, 2020, the Court entered an order consolidating for pretrial purposes the NCMSLT Action and three other lawsuits pending in the Delaware Court of Chancery concerning the DSTs and the Student Loans (the “Consolidated Action”).  U.S. Bank and other parties to the Consolidated Action have briefed and argued motions for judgment on the pleadings pursuant to Chancery Court Rule 12(c) regarding disputed issues of contractual interpretation at issue in one of more of the cases comprising the Consolidated Action, including the NCMSLT Action.  The Court has not yet ruled on these motions or on U.S. Bank’s dismissal motion in the NCMSLT Action.

U.S. Bank intends to continue to defend the NCMSLT Action vigorously.

PART II - OTHER INFORMATION

Item 6. Significant Obligors of Pool Assets.
The Dallas Market Center Mortgage Loan (Control Number 1 on Annex A of the prospectus supplement of the registrant relating to the issuing entity filed on May 29, 2015 pursuant to Rule 424(b)(5)) constitutes a significant obligor within the meaning of Item 1101(k)(2) of Regulation AB as disclosed in the prospectus supplement. In accordance with Item 1112(b) of Regulation AB, the most recent unaudited net operating income of the significant obligor was $29,386,397.00 for the twelve–month period ended August 31, 2021. There is no new activity to report at this time.

Item 7. Change in Sponsor Interest in the Securities

Item 10. Exhibits.
(a)  The following is a list of documents filed as part of this Report on Form 10-D:
(99.1) Monthly report distributed to holders of the certificates issued by GS Mortgage Securities Trust 2015-GC30, relating to the January 12, 2022 distribution.

(b)  The exhibits required to be filed by the Registrant pursuant to this form are listed in the Exhibit Index that immediately follows on the signature page hereof.

SIGNATURES

Pursuant to the requirements 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.

GS Mortgage Securities Corporation II
(Depositor)

Date: January 24, 2022/s/  Leah Nivison
Name: Leah Nivison
Title: CEO

EXHIBIT INDEX

ExhibitDescription
Exhibit 99.1Monthly report distributed to holders of GS Mortgage Securities Trust 2015-GC30, relating to the January 12, 2022 distribution.


C:\Users\jxliu11\AppData\Local\Temp\1\GSMS 2015-GC30\gsms2015gc30_raw


January 2022
GS Mortgage Securities Trust 2015-GC30,
Commercial Mortgage Pass-Through Certificates, Series 2015-GC30
TABLE OF CONTENTS
ADMINISTRATOR
PARTIES TO THE TRANSACTION
DATES
Edward Przybycien
Account Administrator
312-332-7535
Edward.Przybycien@usbank.com
https://pivot.usbank.com/
190 S. LaSalle St. 7th Fl.
Chicago, IL 60603
Name:
Title:
Address:
Phone:
Email:
Website:
Sponsor:
Cantor Commercial Real Estate Lending, L.P.
Sponsor:
Citigroup Global Markets Realty Corp.
Sponsor:
Goldman Sachs Mortgage Company
Sponsor:
MC-Five Mile Commercial Mortgage Finance LLC
Sponsor:
Starwood Mortgage Funding I LLC
Depositor:
GS Mortgage Securities Corporation II
Trustee:
U.S. Bank National Association
Certificate Administrator:
U.S. Bank National Association
Custodian:
U.S. Bank National Association
Master Servicer:
Midland Loan Services, A Division of PNC National Bank
National Association
Special Servicer:
Midland Loan Services, A Division of PNC National Bank
National Association
Operating Advisor:
Trimont Real Estate Advisors, Inc
Payment Date:
Jan 12, 2022
Prior Payment:
Dec 10, 2021
Next Payment:
Feb 11, 2022
Record Date:
Dec 31, 2021
Determination Date:
Jan 6, 2022
First Payment Date:
Jun 12, 2015
Closing Date:
May 29, 2015
Rated Final Distribution Date:
May 12, 2025
* This report contains, or is based on, information furnished to U.S. Bank Global Corporate Trust ("U.S. Bank") by one or more third parties (e.g. Servicers, Master Servicer, etc.), and U.S. Bank
has not independently verified information received from any such third party.
Payment Detail
Page 1
Payment Detail (Exchange Certificates)
Page 2
Factor Detail
Page 3
Principal Detail
Page 4
Interest Detail
Page 5
Reconciliation of Funds
Page 6
Additional Loan Detail
Page 7
Historical Loan Modification Report
Page 9
Bond/Collateral Realized Loss Reconciliation
Page 10
Historical Delinquency & Liquidation (Stated)
Page 11
Historical Delinquency & Liquidation (Actual)
Page 12
Delinquency Summary Report
Page 13
REO Additional Detail
Page 14
REO Status Report
Page 16
Historical Liquidation Loss Loan Detail
Page 17
Interest Adjustment Reconciliation
Page 18
Appraisal Reduction Report
Page 19
Loan Level Detail
Page 20
Material Breaches and Document Defects
Page 23
Mortgage Loan Characteristics
Page 24
Delinquent Loan Detail
Page 28
Supplemental Information
Page 29

Effective
Exchangeable
Pass-Through
Original
Beginning
Principal
Interest
Total
Realized
Ending
Percent
Class
Rate
Balance
Balance
Distribution
Distribution
Distribution
Loss
Balance
Outstanding
A-1
1.43900%
52,911,000.00
0.00
0.00
0.00
0.00
0.00
0.00
A-2
2.72600%
138,851,000.00
0.00
0.00
0.00
0.00
0.00
0.00
A-3
3.11900%
240,000,000.00
232,831,727.36
0.00
605,168.46
605,168.46
0.00
232,831,727.36
A-4
3.38200%
353,977,000.00
353,977,000.00
0.00
997,625.18
997,625.18
0.00
353,977,000.00
A-AB
3.12000%
81,051,000.00
53,284,189.33
1,460,591.13
138,538.89
1,599,130.02
0.00
51,823,598.20
X-A
0.73721%
969,430,000.00
742,732,916.69
0.00
456,294.47
456,294.47
0.00
741,272,325.56
X-B
0.04400%
73,071,000.00
73,071,000.00
0.00
2,679.27
2,679.27
0.00
73,071,000.00
A-S
3.77700%
102,640,000.00
102,640,000.00
0.00
323,059.40
323,059.40
0.00
102,640,000.00
100.00%
B
4.02856%
73,071,000.00
73,071,000.00
0.00
245,309.03
245,309.03
0.00
73,071,000.00
100.00%
PEZ
(1)
N/A
0.00
0.00
0.00
0.00
0.00
0.00
0.00
C
4.07256%
58,198,000.00
58,198,000.00
0.00
197,512.33
197,512.33
0.00
58,198,000.00
100.00%
D
3.38400%
53,989,000.00
53,989,000.00
0.00
152,248.98
152,248.98
0.00
53,989,000.00
X-D
0.68856%
53,989,000.00
53,989,000.00
0.00
30,978.85
30,978.85
0.00
53,989,000.00
E
4.07256%
23,849,000.00
23,849,000.00
0.00
80,938.72
80,938.72
0.00
23,849,000.00
F
4.07256%
20,283,000.00
20,283,000.00
0.00
68,836.43
68,836.43
0.00
20,283,000.00
G
4.07256%
39,451,775.00
39,451,775.00
0.00
132,475.54
132,475.54
0.00
39,451,775.00
S
(2)
0.00000%
0.00
0.00
0.00
0.00
0.00
0.00
0.00
R
0.00000%
0.00
0.00
0.00
0.00
0.00
0.00
0.00
Totals:
1,238,271,775.00
1,011,574,691.69
1,460,591.13
3,431,665.55
4,892,256.68
0.00
1,010,114,100.56
(1) The Class PEZ Certificates have an initial maximum certificate principal amount of 233,909,000.00
(2) Class S is a sole beneficiary of Excess Interest
January 2022
PAYMENT DETAIL
GS Mortgage Securities Trust 2015-GC30,
Commercial Mortgage Pass-Through Certificates, Series 2015-GC30
Page 1 of 29

Pass-Through
Original
Beginning
Principal
Interest
Total
Realized
Ending
Percent
Class
Rate
Balance
Balance
Distribution
Distribution
Distribution
Loss
Balance
Exchanged
A-S
3.777000%
102,640,000.00
102,640,000.00
0.00
0.00
0.00
0.00
102,640,000.00
0.00%
B
4.028559%
73,071,000.00
73,071,000.00
0.00
0.00
0.00
0.00
73,071,000.00
0.00%
PEZ
N/A
0.00
0.00
0.00
0.00
0.00
0.00
0.00
C
4.072559%
58,198,000.00
58,198,000.00
0.00
0.00
0.00
0.00
58,198,000.00
0.00%
Totals:
233,909,000.00
233,909,000.00
0.00
0.00
0.00
0.00
233,909,000.00
January 2022
PAYMENT DETAIL (EXCHANGE CERTIFICATES)
GS Mortgage Securities Trust 2015-GC30,
Commercial Mortgage Pass-Through Certificates, Series 2015-GC30
Page 2 of 29

Beginning
Principal
Interest
Total
Realized
Ending
Class
Cusip
Balance
Distribution
Distribution
Distribution
Loss
Balance
A-1
36250GAL9
0.00000000
0.00000000
0.00000000
0.00000000
0.00000000
0.00000000
A-2
36250GAM7
0.00000000
0.00000000
0.00000000
0.00000000
0.00000000
0.00000000
A-3
36250GAN5
970.13219733
0.00000000
2.52153527
2.52153527
0.00000000
970.13219733
A-4
36250GAP0
1000.00000000
0.00000000
2.81833333
2.81833333
0.00000000
1000.00000000
A-AB
36250GAQ8
657.41556958
18.02064293
1.70928048
19.72992341
0.00000000
639.39492665
X-A
36250GAR6
766.15425218
0.00000000
0.47068326
0.47068326
0.00000000
764.64760278
X-B
36250GAS4
1000.00000000
0.00000000
0.03666667
0.03666667
0.00000000
1000.00000000
A-S
36250GAT2
1000.00000000
0.00000000
3.14750000
3.14750000
0.00000000
1000.00000000
B
36250GAU9
1000.00000000
0.00000000
3.35713257
3.35713257
0.00000000
1000.00000000
PEZ
36250GAV7
0.00000000
0.00000000
0.00000000
0.00000000
0.00000000
0.00000000
C
36250GAW5
1000.00000000
0.00000000
3.39379924
3.39379924
0.00000000
1000.00000000
D
36250GAX3
1000.00000000
0.00000000
2.82000000
2.82000000
0.00000000
1000.00000000
X-D
36250GAY1
1000.00000000
0.00000000
0.57379924
0.57379924
0.00000000
1000.00000000
E
36250GAA3
1000.00000000
0.00000000
3.39379924
3.39379924
0.00000000
1000.00000000
F
36250GAC9
1000.00000000
0.00000000
3.39379924
3.39379924
0.00000000
1000.00000000
G
36250GAE5
1000.00000000
0.00000000
3.35791067
3.35791067
0.00000000
1000.00000000
S
36250GAG0
0.00000000
0.00000000
0.00000000
0.00000000
0.00000000
0.00000000
R
36250GAJ4
0.00000000
0.00000000
0.00000000
0.00000000
0.00000000
0.00000000
January 2022
FACTOR DETAIL
GS Mortgage Securities Trust 2015-GC30,
Commercial Mortgage Pass-Through Certificates, Series 2015-GC30
Page 3 of 29

Operating
Cumulative
Beginning
Scheduled
Unscheduled
Realized
Advisor
Ending
Realized
Class
Balance
Principal
Principal
Loss
Expenses
Balance
Loss
A-1
0.00
0.00
0.00
0.00
0.00
0.00
0.00
A-2
0.00
0.00
0.00
0.00
0.00
0.00
0.00
A-3
232,831,727.36
0.00
0.00
0.00
0.00
232,831,727.36
0.00
A-4
353,977,000.00
0.00
0.00
0.00
0.00
353,977,000.00
0.00
A-AB
53,284,189.33
1,460,591.08
0.05
0.00
0.00
51,823,598.20
0.00
A-S
102,640,000.00
0.00
0.00
0.00
0.00
102,640,000.00
0.00
B
73,071,000.00
0.00
0.00
0.00
0.00
73,071,000.00
0.00
PEZ
0.00
0.00
0.00
0.00
0.00
0.00
0.00
C
58,198,000.00
0.00
0.00
0.00
0.00
58,198,000.00
0.00
D
53,989,000.00
0.00
0.00
0.00
0.00
53,989,000.00
0.00
E
23,849,000.00
0.00
0.00
0.00
0.00
23,849,000.00
0.00
F
20,283,000.00
0.00
0.00
0.00
0.00
20,283,000.00
0.00
G
39,451,775.00
0.00
0.00
0.00
0.00
39,451,775.00
0.00
Totals:
1,011,574,691.69
1,460,591.08
0.05
0.00
0.00
1,010,114,100.56
0.00
January 2022
PRINCIPAL DETAIL
GS Mortgage Securities Trust 2015-GC30,
Commercial Mortgage Pass-Through Certificates, Series 2015-GC30
Page 4 of 29

Accrued
Net Prepay
Current
Yield
Total Interest
Cumulative
Certificate
Interest
Interest
Interest
Maintenance
Distribution
Unpaid Interest
Class
Interest
Shortfall
Adjustment
Shortfalls
Charges
Amount
Shortfall
A-1
0.00
0.00
0.00
0.00
0.00
0.00
0.00
A-2
0.00
0.00
0.00
0.00
0.00
0.00
0.00
A-3
605,168.46
0.00
0.00
0.00
0.00
605,168.46
0.00
A-4
997,625.18
0.00
0.00
0.00
0.00
997,625.18
0.00
A-AB
138,538.89
0.00
0.00
0.00
0.00
138,538.89
0.00
X-A
456,294.47
0.00
0.00
0.00
0.00
456,294.47
0.00
X-B
2,679.27
0.00
0.00
0.00
0.00
2,679.27
0.00
A-S
323,059.40
0.00
0.00
0.00
0.00
323,059.40
0.00
B
245,309.03
0.00
0.00
0.00
0.00
245,309.03
0.00
PEZ
0.00
0.00
0.00
0.00
0.00
0.00
0.00
C
197,512.33
0.00
0.00
0.00
0.00
197,512.33
0.00
D
152,248.98
0.00
0.00
0.00
0.00
152,248.98
0.00
X-D
30,978.85
0.00
0.00
0.00
0.00
30,978.85
0.00
E
80,938.72
0.00
0.00
0.00
0.00
80,938.72
0.00
F
68,836.43
0.00
0.00
0.00
0.00
68,836.43
0.00
G
133,891.40
0.00
-1,415.87
1,415.87
0.00
132,475.54
203,156.39
S
0.00
0.00
0.00
0.00
0.00
0.00
0.00
R
0.00
0.00
0.00
0.00
0.00
0.00
0.00
Totals:
3,433,081.42
0.00
-1,415.87
1,415.87
0.00
3,431,665.55
203,156.39
January 2022
INTEREST DETAIL
GS Mortgage Securities Trust 2015-GC30,
Commercial Mortgage Pass-Through Certificates, Series 2015-GC30
Page 5 of 29

Interest
Fees
Scheduled Interest
3,561,606.38
Master Servicing Fee
10,081.98
Interest Adjustments
0.00
Trustee/Certificate Administrator Fees
2,351.91
Deferred Interest
0.00
CREFC Intellectual Property Royalty License Fee
435.54
Net Prepayment Shortfall
0.00
Operating Advisor Fee
1,219.51
Net Prepayment Interest Excess
0.00
Special Servicing Fee
(3,187.96)
Interest Reserve (Deposit)/Withdrawal
(114,436.05)
Workout Fee
0.00
Interest Collections
3,447,170.33
Liquidation Fee
0.00
Special Serv Fee plus Adj.
0.00
Principal
Miscellaneous Fee
0.00
Scheduled Principal
1,460,591.08
Unscheduled Principal
0.05
Fee Distributions
10,900.98
Principal Adjustments
0.00
Principal Collections
1,460,591.13
Additional Trust Fund Expenses
Reimbursed for Interest on Advances
637.24
Net ASER Amount
3,966.56
Non-Recoverable Advances
0.00
Other
Other Expenses or Shortfalls
0.00
Yield Maintenance
0.00
Additional Trust Fund Expenses
4,603.80
Prepayment Premium
0.00
Other Collections
0.00
Payments to Certificateholders
Interest Distribution
3,431,665.55
Principal Distribution
1,460,591.13
Yield Maintenance
0.00
Prepayment Premium
0.00
Payments to Certificateholders
4,892,256.68
Total Collections
4,907,761.46
Total Distribution
4,907,761.46
Funds Collection
Funds Distribution
January 2022
RECONCILIATION OF FUNDS
GS Mortgage Securities Trust 2015-GC30,
Commercial Mortgage Pass-Through Certificates, Series 2015-GC30
Page 6 of 29

Mortgage Loan Stated Principal Balance
P&I Advances:
Beginning Principal Balance
1,011,574,692.16
Total
Ending Principal Balance
1,010,114,101.03
P & I Advances
Not Provided
% of Cut-Off Date Principal Balance
81.57%
Miscellaneous Advances
Not Provided
Outstanding P & I Advances
881,490.64
Ending Loan Count
81
Disclosable Special Servicer Fees
Commission
0.00
Brokerage Fee
0.00
Weighted Average Remaining Term to Maturity
39
Rebate
0.00
Shared Fee
0.00
Other
0.00
Weighted Average Mortgage Rate
4.2250243%
Excess Liquidation Proceeds Account
Beg Balance
(Withdraw)/Dep
End Balance
Controlling Class:
G
0.00
0.00
0.00
Controlling Class Representative:
DoubleLine Capital L.P.
Specially Serviced Loans that are not Delinquent
Count
Balance
0
0.00
Aggregate Realized Loss in Related Collection Period
0.00
Agg Add'l Trust Expenses in Related Collection Period
0.00
January 2022
ADDITIONAL LOAN DETAIL
GS Mortgage Securities Trust 2015-GC30,
Commercial Mortgage Pass-Through Certificates, Series 2015-GC30
Page 7 of 29

Stated Principal
Amount Of Any
Portion Included
Count
Balance
Loan ID
Liq Proceeds
in Avail Funds
Totals:
Totals:
0.00
0.00
Mortgage Loan Repurchased, Substituted For Or Otherwise
Liquidated Or Disposed During Related Collection Period
Mortgage Loans As to Which Related Mortgator
Is Subject Or Is Expected To Bankruptcy Proceedings
January 2022
ADDITIONAL LOAN DETAIL
GS Mortgage Securities Trust 2015-GC30,
Commercial Mortgage Pass-Through Certificates, Series 2015-GC30
Page 8 of 29

January 2022
HISTORICAL LOAN MODIFICATION REPORT
GS Mortgage Securities Trust 2015-GC30,
Commercial Mortgage Pass-Through Certificates, Series 2015-GC30
Loan ID
Ending
Scheduled
Balance
Comments
Ending
Unpaid
Balance
Page 9 of 29

January 2022
BOND/COLLATERAL REALIZED LOSS RECONCILIATION
GS Mortgage Securities Trust 2015-GC30,
Commercial Mortgage Pass-Through Certificates, Series 2015-GC30
Loan ID
Beginning
Balance of the
Loan at
Liquidation
Prior Realized
Loss Applied to
Certificates
Amounts
Covered by
Overcollateraliz
ation and other
Credit Support
Interest
(Shortages) /
Excesses
applied to
Realized Loss
Modification
Adjustments /
Appraisal
Reduction
Adjustment
Period
Additional
(Recoveries) /
Expenses
applied to
Realized Loss
Current
Realized Loss
Applied to
Certificates*
Recoveries of
Realized
Losses paid
as Cash
(Recoveries) /
Loss to
Certificate
Interest
Aggregate
Realized Loss
on Loans
A
B
C
D
E
Loan Count:
Totals:
Prior Realized Loss Applied to Certificates
Reduction to Realized Loss applied to bonds (could represent OC, insurance policies, reserve accounts, etc)
Adjustments that are based on principal haircut or future interest foregone due to modification
Description of Fields
A
B
C
D
E
*In the Initial Period the Current Realized Loss Applied to Certificates will equal Aggregate Realized Loss on Loans - B - C - D + E instead of A - C - D + E
Amounts classified by the Master as interest adjustments from general collections on a loan with a Realized Loss
Realized Loss Adjustments, Supplemental Recoveries or Expenses on a previously liquidated loan
Page 10 of 29

January 2022
HISTORICAL DELINQUENCY & LIQUIDATION SUMMARY (STATED BALANCE)
GS Mortgage Securities Trust 2015-GC30,
Commercial Mortgage Pass-Through Certificates, Series 2015-GC30
30 Days Delinq
60 Days Delinq
Prepayments/Liquidation
REO
Bankruptcy
Foreclosure
Count
Balance
Count
Balance
Balance
Count
Balance
Count
Month
Balance
Count
Balance
Count
Balance
Count
%
90+ Days Delinq
%
%
%
%
%
%
(1)
(2)
(1)
(2)
(1)
(2)
(2)
(2)
(2)
(2)
0
0.00
0.00
0
1
3,497,035.60
0
1
3,587,817.18
0
0.00
Jan 2022
0.00
0.0%
0.0%
0.3%
0.0%
0.4%
0.0%
0
0.00
0.0%
0
7,037,206.48
0.00
1
1
3,503,632.69
0
1
3,594,545.86
0
0.00
Dec 2021
0.00
0.0%
0.7%
0.3%
0.0%
0.4%
0.0%
0
0.00
0.0%
1
0.00
7,051,315.32
0
1
3,510,636.90
0
1
3,601,695.64
0
0.00
Nov 2021
0.00
0.7%
0.0%
0.3%
0.0%
0.4%
0.0%
0
0.00
0.0%
0
3,517,182.07
0.00
1
0
0.00
0
1
3,608,370.93
0
0.00
Oct 2021
0.00
0.0%
0.3%
0.0%
0.0%
0.4%
0.0%
0
0.00
0.0%
1
7,078,514.57
3,524,136.22
1
0
0.00
0
1
3,615,469.23
0
0.00
Sep 2021
0.00
0.3%
0.7%
0.0%
0.0%
0.4%
0.0%
0
0.00
0.0%
2
17,389,533.15
10,622,231.89
1
0
0.00
0
1
3,622,091.53
0
0.00
Aug 2021
0.00
1.0%
1.7%
0.0%
0.0%
0.4%
0.0%
0
0.00
0.0%
0
7,104,639.75
0.00
1
2
37,003,385.82
0
1
3,628,688.35
0
0.00
Jul 2021
0.00
0.0%
0.7%
3.6%
0.0%
0.4%
0.0%
0
0.00
0.0%
1
0.00
7,118,500.57
0
3
40,701,296.42
0
0
0.00
0
0.00
Jun 2021
0.00
0.7%
0.0%
4.0%
0.0%
0.0%
0.0%
0
0.00
0.0%
0
0.00
0.00
0
3
40,765,535.87
0
0
0.00
0
0.00
May 2021
0.00
0.0%
0.0%
4.0%
0.0%
0.0%
0.0%
0
0.00
0.0%
1
0.00
7,145,198.33
0
3
40,834,291.77
0
0
0.00
0
0.00
Apr 2021
0.00
0.7%
0.0%
4.0%
0.0%
0.0%
0.0%
0
0.00
0.0%
0
0.00
0.00
0
4
48,056,083.43
0
0
0.00
0
0.00
Mar 2021
0.00
0.0%
0.0%
4.7%
0.0%
0.0%
0.0%
0
0.00
0.0%
0
3,663,551.41
0.00
1
3
44,485,779.15
0
0
0.00
0
0.00
Feb 2021
0.00
0.0%
0.4%
4.3%
0.0%
0.0%
0.0%
0
0.00
0.0%
1
0.00
3,669,988.73
0
3
44,555,316.66
0
0
0.00
0
0.00
Jan 2021
0.00
0.4%
0.0%
4.3%
0.0%
0.0%
0.0%
1
3,931,990.80
0.4%
1
7,198,860.74
24,414,948.70
1
2
37,425,741.49
0
0
0.00
0
0.00
Dec 2020
0.00
2.4%
0.7%
3.6%
0.0%
0.0%
0.0%
0
0.00
0.0%
1
0.00
7,212,375.01
0
2
37,486,476.24
0
0
0.00
0
0.00
Nov 2020
0.00
0.7%
0.0%
3.6%
0.0%
0.0%
0.0%
0
0.00
0.0%
(2) Percentage in relation to Ending Scheduled Balance
(1) Exclusive of loans in Bankruptcy, Foreclosure and REO
Page 11 of 29

January 2022
HISTORICAL DELINQUENCY & LIQUIDATION SUMMARY (ACTUAL BALANCE)
GS Mortgage Securities Trust 2015-GC30,
Commercial Mortgage Pass-Through Certificates, Series 2015-GC30
30 Days Delinq
60 Days Delinq
Prepayments/Liquidation
REO
Bankruptcy
Foreclosure
Count
Balance
Count
Balance
Balance
Count
Balance
Count
Month
Balance
Count
Balance
Count
Balance
Count
%
90+ Days Delinq
%
%
%
%
%
%
(1)
(2)
(1)
(2)
(1)
(2)
(2)
(2)
(2)
(2)
0
0.00
0.00
0
1
3,537,098.71
0
1
3,683,246.27
0
0.00
Jan 2022
0.00
0.0%
0.0%
0.4%
0.0%
0.4%
0.0%
0.0%
0.00
0
0
7,078,514.57
0.00
1
1
3,537,098.71
0
1
3,683,246.27
0
0.00
Dec 2021
0.00
0.0%
0.7%
0.3%
0.0%
0.4%
0.0%
0.0%
0.00
0
1
0.00
7,078,514.57
0
1
3,537,098.71
0
1
3,683,246.27
0
0.00
Nov 2021
0.00
0.7%
0.0%
0.3%
0.0%
0.4%
0.0%
0.0%
0.00
0
0
3,537,098.71
0.00
1
0
0.00
0
1
3,683,246.27
0
0.00
Oct 2021
0.00
0.0%
0.3%
0.0%
0.0%
0.4%
0.0%
0.0%
0.00
0
1
7,118,500.57
3,537,098.71
1
0
0.00
0
1
3,683,246.27
0
0.00
Sep 2021
0.00
0.3%
0.7%
0.0%
0.0%
0.4%
0.0%
0.0%
0.00
0
2
17,483,883.53
10,662,479.84
1
0
0.00
0
1
3,683,246.27
0
0.00
Aug 2021
0.00
1.0%
1.7%
0.0%
0.0%
0.4%
0.0%
0.0%
0.00
0
0
7,145,198.33
0.00
1
2
37,643,618.78
0
1
3,683,246.27
0
0.00
Jul 2021
0.00
0.0%
0.7%
3.7%
0.0%
0.4%
0.0%
0.0%
0.00
0
1
0.00
7,145,198.33
0
3
41,420,558.70
0
0
0.00
0
0.00
Jun 2021
0.00
0.7%
0.0%
4.1%
0.0%
0.0%
0.0%
0.0%
0.00
0
0
0.00
0.00
0
3
41,511,213.68
0
0
0.00
0
0.00
May 2021
0.00
0.0%
0.0%
4.1%
0.0%
0.0%
0.0%
0.0%
0.00
0
1
0.00
7,186,182.44
0
3
41,511,213.68
0
0
0.00
0
0.00
Apr 2021
0.00
0.7%
0.0%
4.1%
0.0%
0.0%
0.0%
0.0%
0.00
0
0
0.00
0.00
0
4
48,749,585.74
0
0
0.00
0
0.00
Mar 2021
0.00
0.0%
0.0%
4.8%
0.0%
0.0%
0.0%
0.0%
0.00
0
0
3,683,246.27
0.00
1
3
45,066,339.47
0
0
0.00
0
0.00
Feb 2021
0.00
0.0%
0.4%
4.4%
0.0%
0.0%
0.0%
0.0%
0.00
0
1
0.00
3,683,246.27
0
3
45,066,339.47
0
0
0.00
0
0.00
Jan 2021
0.00
0.4%
0.0%
4.4%
0.0%
0.0%
0.0%
0.4%
3,941,930.50
1
1
7,238,372.06
24,500,614.03
1
2
37,827,967.41
0
0
0.00
0
0.00
Dec 2020
0.00
2.4%
0.7%
3.7%
0.0%
0.0%
0.0%
0.0%
0.00
0
1
0.00
7,238,372.06
0
2
37,827,967.41
0
0
0.00
0
0.00
Nov 2020
0.00
0.7%
0.0%
3.7%
0.0%
0.0%
0.0%
0.0%
0.00
0
(1) Exclusive of loans in Bankruptcy, Foreclosure and REO
(2) Percentage in relation to Ending Scheduled Balance
Page 12 of 29

January 2022
Delinquency Summary Report
GS Mortgage Securities Trust 2015-GC30,
Commercial Mortgage Pass-Through Certificates, Series 2015-GC30
Current
30 - 59 days
60 - 89 days
90 - 120 days
121 + days
TOTAL
Delinquent
Loan Count
Sched Bal
Percentage*
Actual Bal
79
1,003,029,248.25
99.30%
1,003,217,142.97
0
0.00
0.00%
0.00
0
0.00
0.00%
0.00
0
0.00
0.00%
0.00
1
3,497,035.60
0.35%
3,537,098.71
80
1,006,526,283.85
99.64%
1,006,754,241.68
Bankruptcy
Loan Count
Sched Bal
Percentage*
Actual Bal
0
0.00
0.00%
0.00
0
0.00
0.00%
0.00
0
0.00
0.00%
0.00
0
0.00
0.00%
0.00
0
0.00
0.00%
0.00
0
0.00
0.00%
0.00
Foreclosure
Loan Count
Sched Bal
Percentage*
Actual Bal
0
0.00
0.00%
0.00
0
0.00
0.00%
0.00
0
0.00
0.00%
0.00
0
0.00
0.00%
0.00
1
3,587,817.18
0.36%
3,683,246.27
1
3,587,817.18
0.36%
3,683,246.27
REO
Loan Count
Sched Bal
Percentage*
Actual Bal
0
0.00
0.00%
0.00
0
0.00
0.00%
0.00
0
0.00
0.00%
0.00
0
0.00
0.00%
0.00
0
0.00
0.00%
0.00
0
0.00
0.00%
0.00
TOTAL
Loan Count
Sched Bal
Percentage*
Actual Bal
79
1,003,029,248.25
99.30%
1,003,217,142.97
0
0.00
0.00%
0.00
0
0.00
0.00%
0.00
0
0.00
0.00%
0.00
2
7,084,852.78
0.70%
7,220,344.98
81
1,010,114,101.03
100.00%
1,010,437,487.95
Group 1
* Percentages are based on scheduled balance as a percent of total pool scheduled balance.
Page 13 of 29

Stated Principal
Unpaid Principal
Most Recent
Date Appraisal
Loan ID
Balance
Balance
Appraisal Value
Performed
Totals:
Mortgage Property That Became REO Property During Related Prepayment Period
January 2022
REO ADDITIONAL DETAIL
GS Mortgage Securities Trust 2015-GC30,
Commercial Mortgage Pass-Through Certificates, Series 2015-GC30
Page 14 of 29

Liq Proceeds
Portion of Liq
Balance of
and Other
Proceeds in
of Excess Liq
Loan ID
Amounts Rec'd
Available Funds
Proceeds Acct
Totals:
REO Property Sold Or Disposed During Related Prepayment Period
January 2022
REO ADDITIONAL DETAIL
GS Mortgage Securities Trust 2015-GC30,
Commercial Mortgage Pass-Through Certificates, Series 2015-GC30
Page 15 of 29

January 2022
REO STATUS REPORT
GS Mortgage Securities Trust 2015-GC30,
Commercial Mortgage Pass-Through Certificates, Series 2015-GC30
Loan ID
State
Ending
Scheduled Loan
Total Exposure
Appraisal Value
REO Date
Date Asset
Expected to
be Resolved
or Foreclosed
REO Revenue
and Other
Amounts
City
Property Type
Book Value
Type *
Appraisal
Date
Count:
Totals:
(*) Legend: (1) Partial Liq'n (Curtailment), (2) Payoff Prior To Maturity, (3) Disposition / Liquidation, (4) Repurchase/ Substitution, (5) Full Payoff At Maturity, (6) DPO, (7) Liquidated, (8) Payoff w/ penalty,
(9) Payoff w/ yield Maintenance, (10) Curtailment w/ Penalty, (11) Curtailment w/ Yield Maintenance
Page 16 of 29

January 2022
HISTORICAL LIQUIDATION LOSS LOAN DETAIL
GS Mortgage Securities Trust 2015-GC30,
Commercial Mortgage Pass-Through Certificates, Series 2015-GC30
Current Beginning
Scheduled Balance
Most Recent Value **
Net Proceeds Received
on Liquidation
Liquidation Expense
Net Proceeds Available
for Distribution
Realized Loss to Trust
Loan ID
Liquidation /
Prepayment
Code *
Liquidation
Month
Count:
Totals:
* Liquidation / Prepayment Code: 1 - Partial Liq'n (Curtailment); 2 - Payoff Prior To Maturity; 3 - Disposition / Liquidation; 4 - Repurchase/ Substitution; 5 - Full Payoff At Maturity; 6 - DPO; 7 - Liquidated; 8 -
Payoff w/ penalty; 9 - Payoff w/ yield Maintenance; 10 - Curtailment w/ Penalty; 11 - Curtailment w/ Yield Maintenance
** Reported as of liquidation period. If not provided by the servicer, Most Recent Value is as of cutoff.
Page 17 of 29

January 2022
INTEREST ADJUSTMENT RECONCILIATION
GS Mortgage Securities Trust 2015-GC30,
Commercial Mortgage Pass-Through Certificates, Series 2015-GC30
Special
Servicing Fee
Amount plus
Adjustments
Liquidation
Fee Amount
Workout Fee
Amount
Most Recent
Net ASER
Amount
Prepayment
Interest
(Excess)/
Shortfall *
Non-
Recoverable
(Scheduled
Interest Not
Advanced)**
Reimbursed
Interest on
Advances
Modified
Interest Rate
Reduction/
(Excess)
Current Month
Outstanding
Other
Shortfalls/
(Refunds)
Current Ending
Scheduled
Balance
Loan ID
Reimbursement of
Advances to Servicer
-8,431.90
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
19,413,537.49
0.00
0.00
12
3,715.86
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
17,229,340.01
0.00
0.00
13
0.00
0.00
0.00
0.00
0.00
0.00
277.66
0.00
0.00
8,380,296.22
0.00
0.00
37
0.00
0.00
0.00
0.00
0.00
0.00
357.13
0.00
0.00
7,023,911.52
0.00
0.00
40
0.00
0.00
0.00
0.00
0.00
0.00
2.45
0.00
0.00
6,349,326.36
0.00
0.00
49
773.83
0.00
0.00
3,966.56
0.00
0.00
0.00
0.00
0.00
3,587,817.18
0.00
0.00
75
754.25
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
3,497,035.60
0.00
0.00
76
65,481,264.38
Count:
Totals:
7
-3,187.96
0.00
0.00
3,966.56
0.00
0.00
637.24
0.00
0.00
0.00
0.00
Total Interest Shortfall hitting the Trust:
1,415.84
*Total shortfall may not match impact to bonds due to, but not limited to, the net effect of PPIE and Master Servicing fees received as per the governing documents.
**In some cases, the Servicer does not withhold their Servicing Fees on Non-Recoverable loans.
Page 18 of 29

January 2022
APPRAISAL REDUCTION REPORT
GS Mortgage Securities Trust 2015-GC30,
Commercial Mortgage Pass-Through Certificates, Series 2015-GC30
Loan ID
Property Name
Paid Through
Date
ARA (Appraisal
Reduction Amount)
ARA Date
Most Recent Value
Most Recent
Valuation Date
Most Recent Net
ASER Amount
Cumulative ASER
Amount
75
11/06/2020
1,028,198.86
04/06/2021
3,100,000.00
12/04/2020
3,966.56
39,153.80
Count:
Totals:
1
1,028,198.86
3,100,000.00
3,966.56
39,153.80
Page 19 of 29

January 2022
LOAN LEVEL DETAIL
GS Mortgage Securities Trust 2015-GC30,
Commercial Mortgage Pass-Through Certificates, Series 2015-GC30
Loan ID
Property
Type
Transfer
Date
Stat
Maturity
Date
Neg
Am
End Schedule
Balance
Sched
P&I
Prepay
Adj
Prepay
Date
Paid
Thru
Prepay
Premium
Loan
Status **
Interest
Payment
Yield Maint
Charges
Note
Rate
PFY
DSCR
Operating
Stmnt
1
Mixed Use
TX
05/06/25
N
113,693,979.70
627,969.37
0.05
01/06/22
0.00
0
401,955.62
0.00
4.098
1.50
02/28/21
2
Office
WA
04/04/25
N
123,000,000.00
413,975.29
0.00
01/06/22
0.00
0
413,975.29
0.00
3.909
0.00
12/31/20
3
Lodging
TX
05/06/25
N
77,307,661.06
389,439.87
0.00
01/06/22
0.00
0
244,272.24
0.00
3.663
-0.15
12/31/20
4
Lodging
XX
04/06/20
02/06/20
4A
Lodging
XX
04/06/20
12/05/19
5
Office
MO
05/06/25
N
46,526,640.64
240,606.94
0.00
01/06/22
0.00
0
156,934.34
0.00
3.910
1.88
12/31/20
6
Multifamily
PA
10/04/24
N
32,049,534.65
167,200.98
0.00
01/06/22
0.00
0
122,582.28
0.00
4.436
1.36
12/31/20
7
Multifamily
OH
04/06/45
N
28,095,000.00
100,884.46
0.00
01/06/22
0.00
0
100,884.46
0.00
4.170
0.00
8
Lodging
04/23/20 CA
03/06/25
N
23,839,585.45
139,503.26
0.00
01/06/22
0.00
0
95,858.66
0.00
4.661
0.55
12/31/20
9
Mixed Use
CA
04/06/25
N
25,000,000.00
84,388.89
0.00
01/06/22
0.00
0
84,388.89
0.00
3.920
2.69
12/31/20
10
Retail
OH
05/06/25
N
21,733,211.79
117,059.33
0.00
01/06/22
0.00
0
72,013.44
0.00
3.840
1.92
12/31/20
11
Mixed Use
CA
04/06/20
04/06/20
12
Retail
07/06/20 NY
04/06/25
N
19,413,537.49
97,220.67
0.00
01/06/22
0.00
0
69,475.58
0.00
4.150
1.00
12/31/20
13
Lodging
10/08/20 NY
05/06/25
N
17,229,340.01
93,891.30
0.00
12/06/21
0.00
A
62,426.58
0.00
4.200
0.00
12/31/20
14
Retail
NY
05/06/25
N
17,497,371.75
87,289.25
0.00
01/06/22
0.00
0
62,316.27
0.00
4.130
1.18
12/31/20
15
Lodging
FL
04/04/25
N
15,648,174.45
85,246.10
0.00
01/06/22
0.00
0
53,112.04
0.00
3.934
1.85
12/31/20
16
Retail
CA
04/06/25
N
16,500,000.00
55,696.67
0.00
01/06/22
0.00
0
55,696.67
0.00
3.920
1.33
12/31/20
17
Multifamily
GA
04/06/25
N
15,699,554.44
76,132.08
0.00
12/06/21
0.00
A
52,397.86
0.00
3.870
0.00
18
Multifamily
XX
04/06/25
N
13,747,379.17
73,843.68
0.00
01/06/22
0.00
0
50,468.29
0.00
4.256
2.40
19
Multifamily
DC
05/06/25
N
13,321,046.46
66,835.53
0.00
01/06/22
0.00
0
48,016.11
0.00
4.180
0.75
12/31/20
20
Office
NJ
05/06/25
N
12,569,527.34
66,549.04
0.00
01/06/22
0.00
0
46,939.99
0.00
4.330
1.47
12/31/20
21
Multifamily
MI
04/06/25
N
12,989,128.45
65,196.43
0.00
12/06/21
0.00
A
46,708.18
0.00
4.170
1.77
12/31/20
22
Mixed Use
CA
04/04/25
N
11,911,398.17
63,876.10
0.00
01/06/22
0.00
0
43,564.00
0.00
4.240
1.65
12/31/20
23
Self Storage
CA
05/06/25
N
13,000,000.00
41,307.50
0.00
01/06/22
0.00
0
41,307.50
0.00
3.690
4.42
12/31/20
24
Multifamily
OK
04/06/25
N
11,971,639.37
62,818.53
0.00
12/06/21
0.00
A
43,676.42
0.00
4.230
0.00
25
Multifamily
OH
04/06/45
N
11,772,303.01
58,752.78
0.00
01/06/22
0.00
0
41,825.57
0.00
4.120
2.20
09/30/20
26
Retail
FL
05/06/25
N
11,268,282.31
60,233.16
0.00
01/06/22
0.00
0
42,954.10
0.00
4.420
1.27
12/31/20
27
Retail
XX
05/06/25
N
9,420,532.67
60,173.40
0.00
01/06/22
0.00
0
32,543.67
0.00
4.000
1.63
12/31/20
28
Multifamily
OH
05/06/25
N
10,883,695.55
53,923.48
0.00
01/06/22
0.00
0
38,199.44
0.00
4.070
0.00
29
Lodging
LA
03/06/25
N
10,123,702.33
53,377.77
0.00
01/06/22
0.00
0
35,456.24
0.00
4.060
0.81
12/31/20
30
Multifamily
MI
04/06/25
N
10,474,031.62
52,896.89
0.00
01/06/22
0.00
0
36,675.09
0.00
4.060
2.06
12/31/20
31
Retail
XX
03/06/25
N
9,673,881.46
56,816.77
0.00
12/06/21
0.00
A
39,223.55
0.00
4.700
1.01
32
Multifamily
TX
05/06/25
N
9,544,245.31
53,190.43
0.00
01/06/22
0.00
0
34,503.59
0.00
4.190
1.81
12/31/20
33
Retail
TN
04/06/20
03/06/20
34
Multifamily
TX
05/06/25
N
9,202,440.24
51,285.54
0.00
01/06/22
0.00
0
33,267.92
0.00
4.190
2.02
12/31/20
35
Self Storage
GA
03/06/25
N
5,320,085.21
29,939.42
0.00
01/06/22
0.00
0
20,056.96
0.00
4.370
1.70
12/31/20
36
Self Storage
GA
03/06/25
N
3,355,059.04
18,961.63
0.00
01/06/22
0.00
0
12,649.03
0.00
4.370
0.00
37
Multifamily
TX
05/06/25
N
8,380,296.22
48,022.28
0.00
01/06/22
0.00
A
32,389.63
0.00
4.480
1.94
12/31/20
38
Retail
IL
05/06/25
N
7,479,945.64
39,990.59
0.00
01/06/22
0.00
0
27,282.31
0.00
4.229
2.44
12/31/20
39
Industrial
TX
05/06/25
N
6,998,564.06
38,702.29
0.00
01/06/22
0.00
0
24,818.22
0.00
4.110
1.34
40
Retail
OH
04/06/25
N
7,023,911.52
40,139.95
0.00
01/06/22
0.00
0
26,844.99
0.00
4.430
1.07
06/30/20
Page 20 of 29

January 2022
LOAN LEVEL DETAIL
GS Mortgage Securities Trust 2015-GC30,
Commercial Mortgage Pass-Through Certificates, Series 2015-GC30
Loan ID
Property
Type
Transfer
Date
Stat
Maturity
Date
Neg
Am
End Schedule
Balance
Sched
P&I
Prepay
Adj
Prepay
Date
Paid
Thru
Prepay
Premium
Loan
Status **
Interest
Payment
Yield Maint
Charges
Note
Rate
PFY
DSCR
Operating
Stmnt
41
Retail
CA
05/06/25
N
7,663,279.59
36,595.10
0.00
01/06/22
0.00
0
24,797.32
0.00
3.752
2.57
12/31/20
42
Multifamily
TX
04/06/20
10/06/19
43
Multifamily
FL
04/06/25
N
6,757,065.08
38,541.42
0.00
01/06/22
0.00
0
25,708.69
0.00
4.410
0.00
44
Multifamily
OH
05/06/25
08/06/19
45
Office
VA
04/06/25
N
6,580,202.61
37,243.18
0.00
01/06/22
0.00
0
24,576.57
0.00
4.329
2.54
12/31/20
46
Retail
KY
04/06/25
N
6,560,819.84
36,676.29
0.00
01/06/22
0.00
0
23,774.96
0.00
4.200
1.81
12/31/20
47
Retail
CA
03/06/25
N
6,698,360.18
34,125.31
0.00
01/06/22
0.00
0
22,764.59
0.00
3.940
0.00
48
Retail
VA
05/06/25
N
6,173,693.09
33,285.38
0.00
12/06/21
0.00
A
20,509.86
0.00
3.850
1.79
12/31/20
49
Multifamily
VA
04/06/25
N
6,349,326.36
32,839.74
0.00
01/06/22
0.00
0
22,428.76
0.00
4.096
1.52
12/31/20
50
Mobile Home
PA
05/06/25
N
5,863,248.43
32,469.59
0.00
12/06/21
0.00
A
20,865.44
0.00
4.125
1.77
12/31/20
51
Retail
CO
05/06/25
N
6,335,760.25
33,516.39
0.00
01/06/22
0.00
0
25,401.93
0.00
4.650
2.04
12/31/20
52
Office
PA
03/06/25
N
6,304,702.67
32,035.10
0.00
01/06/22
0.00
0
23,190.10
0.00
4.266
0.00
53
Retail
02/12/18 SC
05/06/25
N
5,855,499.85
30,665.80
0.00
01/06/22
0.00
0
21,352.48
0.00
4.228
1.21
12/31/20
54
Retail
CA
04/06/25
N
5,617,207.40
29,727.53
0.00
12/06/21
0.00
A
20,880.48
0.00
4.310
0.00
55
Multifamily
CO
05/06/25
N
5,160,254.68
28,508.70
0.00
01/06/22
0.00
0
18,254.77
0.00
4.100
1.55
12/31/20
56
Multifamily
SC
04/06/25
N
5,219,414.24
30,603.18
0.00
01/06/22
0.00
0
21,166.82
0.00
4.701
1.72
12/31/20
57
Retail
AL
04/06/25
N
5,750,000.00
19,577.79
0.00
01/06/22
0.00
0
19,577.79
0.00
3.954
3.52
12/31/20
58
Retail
SC
05/06/25
N
5,101,651.13
27,425.05
0.00
01/06/22
0.00
0
17,889.08
0.00
4.065
1.83
12/31/20
59
Retail
SC
05/06/25
N
5,640,000.00
18,926.43
0.00
01/06/22
0.00
0
18,926.43
0.00
3.897
2.69
12/31/20
60
Self Storage
MI
03/06/25
N
5,448,615.47
27,440.14
0.00
01/06/22
0.00
0
19,672.84
0.00
4.187
0.00
61
Retail
TX
04/06/25
N
4,740,914.09
26,908.88
0.00
01/06/22
0.00
0
17,827.46
0.00
4.359
1.51
12/31/20
62
Retail
GA
04/06/25
N
5,005,001.81
26,318.78
0.00
01/06/22
0.00
0
18,346.09
0.00
4.250
1.85
12/31/20
63
Self Storage
MI
03/06/25
N
5,065,661.16
25,511.52
0.00
01/06/22
0.00
0
18,290.14
0.00
4.187
0.00
64
Retail
NC
05/06/25
N
4,597,470.41
24,074.21
0.00
01/06/22
0.00
0
15,978.63
0.00
4.029
1.69
12/31/20
65
Self Storage
MI
03/06/25
N
4,871,760.30
24,535.00
0.00
01/06/22
0.00
0
17,590.04
0.00
4.187
0.00
66
Retail
AZ
05/06/25
N
4,362,993.49
23,870.76
0.00
01/06/22
0.00
0
15,058.44
0.00
4.000
1.80
12/31/20
67
Lodging
FL
04/04/25
N
4,408,885.89
25,491.97
0.00
01/06/22
0.00
0
17,317.70
0.00
4.553
0.57
12/31/20
68
Retail
NC
04/06/25
N
4,380,910.32
24,655.57
0.00
01/06/22
0.00
0
16,139.68
0.00
4.270
1.89
12/31/20
69
Industrial
MI
03/06/26
N
2,092,748.63
46,165.19
0.00
12/06/21
0.00
A
8,501.17
0.00
4.634
0.00
70
Multifamily
MI
05/06/25
N
4,094,674.91
23,285.38
0.00
01/06/22
0.00
0
15,543.60
0.00
4.400
0.00
71
Lodging
NY
05/06/20
12/23/20
72
Multifamily
MI
04/06/25
N
4,114,744.21
21,568.15
0.00
01/06/22
0.00
0
14,976.48
0.00
4.220
1.83
12/31/20
73
Retail
NC
05/06/25
N
3,246,153.32
26,453.70
0.00
01/06/22
0.00
0
11,933.16
0.00
4.250
1.36
12/31/20
74
Retail
AL
04/06/25
N
3,688,170.54
20,952.64
0.00
01/06/22
0.00
0
13,898.97
0.00
4.368
1.07
12/31/20
75
Mixed Use
07/06/20 NY
04/06/25
N
3,587,817.18
20,611.12
0.00
11/06/20
0.00
6
13,882.44
0.00
4.485
-0.32
12/31/20
76
Office
10/14/21 IN
04/06/25
N
3,497,035.60
20,022.82
0.00
07/06/21
0.00
6
13,425.73
0.00
4.450
1.55
12/31/20
77
Mobile Home
PA
05/06/25
N
3,325,424.36
18,415.59
0.00
12/06/21
0.00
A
11,834.13
0.00
4.125
1.59
12/31/20
78
Retail
NC
05/06/25
N
2,621,542.60
21,363.59
0.00
01/06/22
0.00
0
9,637.03
0.00
4.250
1.60
12/31/20
79
Retail
GA
05/06/25
N
2,729,339.58
17,447.41
0.00
01/06/22
0.00
0
9,452.17
0.00
4.010
1.99
12/31/20
80
Multifamily
TX
04/06/20
01/06/20
81
Multifamily
06/24/19 NY
05/06/25
N
2,671,871.05
14,861.67
0.00
01/06/22
0.00
0
9,613.09
0.00
4.170
0.00
Page 21 of 29

January 2022
LOAN LEVEL DETAIL
GS Mortgage Securities Trust 2015-GC30,
Commercial Mortgage Pass-Through Certificates, Series 2015-GC30
Loan ID
Property
Type
Transfer
Date
Stat
Maturity
Date
Neg
Am
End Schedule
Balance
Sched
P&I
Prepay
Adj
Prepay
Date
Paid
Thru
Prepay
Premium
Loan
Status **
Interest
Payment
Yield Maint
Charges
Note
Rate
PFY
DSCR
Operating
Stmnt
82
Mixed Use
FL
05/06/25
N
3,000,000.00
10,152.50
0.00
01/06/22
0.00
0
10,152.50
0.00
3.930
3.30
12/31/20
83
Mobile Home
CO
04/06/20
04/28/20
84
Retail
KY
05/06/25
N
2,477,555.85
14,387.53
0.00
01/06/22
0.00
0
9,874.50
0.00
4.620
1.55
12/31/20
85
Self Storage
MI
03/06/25
N
2,549,797.03
12,841.20
0.00
01/06/22
0.00
0
9,206.33
0.00
4.187
0.00
86
Self Storage
CA
05/06/25
N
2,169,286.91
12,061.19
0.00
01/06/22
0.00
0
8,625.11
0.00
4.610
1.86
12/31/20
87
Retail
NC
05/06/25
N
1,751,778.57
14,348.73
0.00
01/06/22
0.00
0
6,570.55
0.00
4.337
1.87
12/31/20
88
Self Storage
MI
03/06/25
N
1,265,203.34
6,371.78
0.00
01/06/22
0.00
0
4,568.16
0.00
4.187
0.00
89
Multifamily
MI
04/06/25
N
1,053,572.43
5,980.81
0.00
01/06/22
0.00
0
3,963.15
0.00
4.360
1.42
12/31/20
1,010,114,101.03
5,022,197.46
0.05
0.00
90
Totals:
Count:
3,561,606.38
0.00
** Loan Status: A = Payment not received but still in grace period; B = Late Payment but less than 30 days delinquent; 0 = Current; 1 = 30-59 Days Delinquent; 2 = 60-89 Days Delinquent;
3 = 90-120 Days Delinquent; 4 = Performing Matured Balloon; 5 = Non-Performing Matured Balloon; 6 = 121+ Days Delinquent; R = Repurchased.
* If State field is blank or 'XX', loan has properties in multiple states.
Page 22 of 29

January 2022
MATERIAL BREACHES AND DOCUMENT DEFECTS
GS Mortgage Securities Trust 2015-GC30,
Commercial Mortgage Pass-Through Certificates, Series 2015-GC30
Loan ID
Ending Principal
Balance
Material Breach Date
Date Received Notice
Description
Totals:
Count:
Page 23 of 29

January 2022
MORTGAGE LOAN CHARACTERISTICS
GS Mortgage Securities Trust 2015-GC30,
Commercial Mortgage Pass-Through Certificates, Series 2015-GC30
Count
Balance ($)
%
0M to 4.9M
25
$80,654,709.65
7.98%
5M to 9.9M
29
$192,193,666.17
19.03%
10M to 14.9M
12
$144,032,133.78
14.26%
15M to 19.9M
6
$101,987,978.14
10.10%
20M to 24.9M
2
$45,572,797.24
4.51%
25M to 29.9M
2
$53,095,000.00
5.26%
30M to 34.9M
1
$32,049,534.65
3.17%
45M to 49.9M
1
$46,526,640.64
4.61%
75M to 79.9M
1
$77,307,661.06
7.65%
110M to 114.9M
1
$113,693,979.70
11.26%
120M to 124.9M
1
$123,000,000.00
12.18%
Total
81
$1,010,114,101.03
100.00%
Remaining Principal Balance
Count
Balance ($)
%
3.500% - 3.740%
2
$90,307,661.06
8.94%
3.750% - 3.990%
13
$299,032,914.18
29.60%
4.000% - 4.240%
35
$407,915,582.52
40.38%
4.250% - 4.490%
23
$156,640,824.59
15.51%
4.500% - 4.740%
8
$56,217,118.68
5.57%
Total
81
$1,010,114,101.03
100.00%
Gross Rate
Total Weighted Average Rate: 4.09%
Page 24 of 29

January 2022
MORTGAGE LOAN CHARACTERISTICS
GS Mortgage Securities Trust 2015-GC30,
Commercial Mortgage Pass-Through Certificates, Series 2015-GC30
Count
Balance ($)
%
TEXAS
7
$229,868,100.68
22.76%
WASHINGTON
1
$123,000,000.00
12.18%
CALIFORNIA
9
$112,399,117.70
11.13%
OHIO
5
$79,508,121.87
7.87%
NEW YORK
5
$60,399,937.48
5.98%
MICHIGAN
11
$54,019,937.55
5.35%
PENNSYLVANIA
4
$47,542,910.11
4.71%
MISSOURI
1
$46,526,640.64
4.61%
FLORIDA
5
$41,082,407.73
4.07%
VARIOUS
3
$32,841,793.30
3.25%
GEORGIA
5
$32,109,040.08
3.18%
SOUTH CAROLINA
4
$21,816,565.22
2.16%
VIRGINIA
3
$19,103,222.06
1.89%
NORTH CAROLINA
5
$16,597,855.22
1.64%
DISTRICT OF COLUMBIA
1
$13,321,046.46
1.32%
NEW JERSEY
1
$12,569,527.34
1.24%
OKLAHOMA
1
$11,971,639.37
1.19%
COLORADO
2
$11,496,014.93
1.14%
LOUISIANA
1
$10,123,702.33
1.00%
ALABAMA
2
$9,438,170.54
0.93%
KENTUCKY
2
$9,038,375.69
0.89%
ILLINOIS
1
$7,479,945.64
0.74%
ARIZONA
1
$4,362,993.49
0.43%
INDIANA
1
$3,497,035.60
0.35%
Total
81
$1,010,114,101.03
100.00%
Geographic Distribution by State
Count
Balance ($)
%
Industrial
2
$9,091,312.69
0.90%
Lodging
6
$148,557,349.19
14.71%
Mixed Use
5
$157,193,195.05
15.56%
Mobile Home Park
2
$9,188,672.79
0.91%
Multifamily
21
$223,551,217.45
22.13%
Office
6
$198,478,108.86
19.65%
Retail
30
$221,008,776.54
21.88%
Self Storage
9
$43,045,468.46
4.26%
Total
81
$1,010,114,101.03
100.00%
Property Type
Page 25 of 29

January 2022
MORTGAGE LOAN CHARACTERISTICS
GS Mortgage Securities Trust 2015-GC30,
Commercial Mortgage Pass-Through Certificates, Series 2015-GC30
Count
Balance ($)
%
78 - 80
37
$490,898,258.82
48.60%
81 - 83
43
$487,166,307.56
48.23%
87 - 89
1
$32,049,534.65
3.17%
Total
81
$1,010,114,101.03
100.00%
Seasoning
Months
Total Weighted Average Seasoning: 81
Count
Balance ($)
%
33 - 35
1
$32,049,534.65
3.17%
36 - 38
12
$84,516,413.64
8.37%
39 - 41
67
$891,455,404.11
88.25%
48 - 50
1
$2,092,748.63
0.21%
Total
81
$1,010,114,101.03
100.00%
Remaining Term to Maturity
Months
Total Weighted Average Remaining Months: 39
Page 26 of 29

January 2022
MORTGAGE LOAN CHARACTERISTICS
GS Mortgage Securities Trust 2015-GC30,
Commercial Mortgage Pass-Through Certificates, Series 2015-GC30
Count
Balance ($)
%
-0.50 - -0.01
2
$20,817,157.19
2.06%
0.000 - 0.490
1
$13,321,046.46
1.32%
0.500 - 0.990
2
$86,981,542.52
8.61%
1.000 - 1.490
9
$94,936,575.16
9.40%
1.500 - 1.990
23
$333,187,027.82
32.99%
2.000 - 2.490
18
$153,846,124.65
15.23%
2.500 - 2.990
1
$6,173,693.09
0.61%
3.000 - 3.490
3
$11,227,555.85
1.11%
3.500 - 3.990
2
$14,532,588.22
1.44%
4.000 - 4.490
1
$13,000,000.00
1.29%
5.000 - 5.490
1
$15,648,174.45
1.55%
Not Avail.
18
$246,442,615.62
24.40%
Total
81
$1,010,114,101.03
100.00%
DSCR
Total Weighted Average DSCR: 1.35
Count
Balance ($)
%
Amortizing Balloon
34
$330,112,160.62
32.68%
Full Amortizing
1
$2,092,748.63
0.21%
Other
46
$677,909,191.78
67.11%
Total
81
$1,010,114,101.03
100.00%
Amortization Type
Page 27 of 29

January 2022
DELINQUENT LOAN DETAIL
GS Mortgage Securities Trust 2015-GC30,
Commercial Mortgage Pass-Through Certificates, Series 2015-GC30
Loan ID
Paid Thru
Date
Current
P&I
Advances**
Outstanding
P&I
Advances***
Outstanding
Servicing
Advances
Loan
Status
Code*
Special
Servicer
Transfer Date
Foreclosure
Date
Bankruptcy
Date
Reo
Date
Resolution
Strategy Code
13
12/06/2021
93,816.98
93,816.97
409,694.15
A
10/08/2020
13
17
12/06/2021
75,692.05
75,692.05
0.00
A
21
12/06/2021
64,608.38
64,608.37
0.00
A
24
12/06/2021
62,276.45
62,276.44
0.00
A
31
12/06/2021
56,775.04
56,775.04
0.00
A
37
01/06/2022
47,986.13
0.00
0.00
A
48
12/06/2021
33,005.70
33,005.69
0.00
A
50
12/06/2021
32,102.82
32,102.82
0.00
A
54
12/06/2021
29,509.52
29,703.31
0.00
A
69
12/06/2021
46,068.88
46,068.87
0.00
A
75
11/06/2020
20,595.64
249,186.56
177,839.79
6
07/06/2020
12/31/2020
6
76
07/06/2021
19,887.05
120,046.95
0.00
6
10/14/2021
98
77
12/06/2021
18,207.57
18,207.57
0.00
A
13
Totals:
881,490.64
587,533.94
Count:
600,532.21
* Loan Status: A = Payment not received but still in grace period;
B = Late Payment but less than 30 days delinquent; 0 = Current; 1 = 30-59 Days Delinquent;
2 = 60-89 Days Delinquent;3 = 90-120 Days Delinquent; 4 = Performing Matured Balloon;
5 = Non-Performing Matured Balloon; 6 = 121+ Days Delinquent.
** Current advances are not provided but are derived from information received from the Servicer
***Outstanding P&I Advances include the current period P&I Advances and may include Servicer Advances.
**** Resolution Strategy Code
1 - Modification 2 - Foreclosure 3 - Bankruptcy 4 - Extension 5 - Note Sale
6 - DPO 7 - REO 8 - Resolved 9 - Pending Return to Master Servicer
10 - Deed in lieu of Foreclosure 11- Full Payoff 12 - Reps and Warranties
13 - Other or TBD
Page 28 of 29

January 2022
SUPPLEMENTAL INFORMATION
GS Mortgage Securities Trust 2015-GC30,
Commercial Mortgage Pass-Through Certificates, Series 2015-GC30
Notice Date
Notes
May 01, 2018
Each Certificateholder and Beneficial Owner may access notices on the Certificate Administrator's Website and each Certificateholder and
Beneficial Owner may register to receive email notifications when such notices are posted on the Certificate Administrator's Website ;
provided that the Certificate Administrator shall be entitled to reimbursement from the requesting Certificateholders for the reasonable
expenses of posting such notices.
Page 29 of 29