Citigroup Commercial Mortgage Trust 2017-C4

Commercial Mortgage Pass-Through Certificates, Series 2017-C4

STATEMENT TO NOTEHOLDERS

May 14, 2025


TRANSACTION PARTIES


Depositor:	Citigroup Commercial Mortgage Securities Inc.
Master Servicer:	Midland Loan Services, a Division of PNC Bank N.A.
Certificate Administrator:	Citibank, N.A.
Trustee:	Wilmington Trust, National Association
Special Servicer:	Midland Loan Services, a Division of PNC Bank N.A.
Asset Representations Reviewer /
	Park Bridge Lender Services LLC
Operating Advisor:




	Danny Lee	Citibank, Agency and Trust
	(212) 816-4936	388 Greenwich Street Trading, 4th Floor
danny1.lee@citi.com		New York, NY 10013


TABLE OF CONTENTS


1	.	Distribution Summary	2
1.1	.	Summary	2
1.2	.	Factors	3
2	.	Distribution Detail	4
2.1	.	Interest Detail	4
2.2	.	Interest Shortfall Detail	5
2.3	.	Principal Detail	6
3	.	Reconciliation Detail	7
4	.	Other Information	8
5	.	Stratification Detail	9
6	.	Mortgage Loan Detail	14
7	.	NOI Detail	16
8	.	Delinquency Loan Detail	18
9	.	Collateral Performance Delinquency and Loan Status Detail	19
10	.	Appraisal Reduction Detail	20
11	.	Historical Appraisal Reduction Detail	21
12	.	Loan Modification Detail	23
13	.	Historical Loan Modification Detail	24
14	.	Specially Serviced Loan Detail	32
15	.	Historical Specially Serviced Loan Detail	33
16	.	Unscheduled Principal Detail	37
17	.	Historical Unscheduled Principal Detail	38
18	.	Liquidated Loan Detail	39
19	.	Historical Liquidated Loan Detail	40
20	.	CREFC Investor Reporting Package Legends	41
21	.	Notes	42


Reports Available at sf.citidirect.com	v. 21.09.28	Page 1 of 42	© Copyright 2025 Citigroup

Citigroup Commercial Mortgage Trust 2017-C4

Commercial Mortgage Pass-Through Certificates, Series 2017-C4

DISTRIBUTION SUMMARY

May 14, 2025


					Accrual		Other				Non-Cash
	Original	Prior	Pass-Through		Day	Interest	(As Interest)	Principal	Total	Realized Loss	Balance		Current
Class	Balance	Balance	Rate		Count	Distributed	Distributed	Distributed	Distributed	/(Recovery)	Change		Balance

A-1	27,750,000.00	-	2.121000	%	30/360	-	-	-	-	-	-		-
A-2	103,900,000.00	-	3.190000	%	30/360	-	-	-	-	-	-		-
A-3	240,000,000.00	199,739,590.64	3.209000	%	30/360	534,136.96	-	-	534,136.96	-	-		199,739,590.64
A-4	271,691,000.00	271,691,000.00	3.471000	%	30/360	785,866.22	-	-	785,866.22	-	-		271,691,000.00
A-AB	40,600,000.00	20,214,412.68	3.297000	%	30/360	55,539.10	-	767,012.69	822,551.79	-	-		19,447,399.99
A-S	73,280,000.00	73,280,000.00	3.764000	%	30/360	229,854.93	-	-	229,854.93	-	-		73,280,000.00
B	45,189,000.00	45,189,000.00	4.096000	%	30/360	154,245.12	-	-	154,245.12	-	-		45,189,000.00
C	40,304,000.00	40,304,000.00	4.137420	%	30/360	138,962.14	-	-	138,962.14	-	-		40,304,000.00
D	29,311,000.00	29,311,000.00	3.000000	%	30/360	73,277.50	-	-	73,277.50	-	-		29,311,000.00
E-RR	21,984,000.00	21,984,000.00	4.387420	%	30/360	80,377.53	-	-	80,377.53	-	-		21,984,000.00
F-RR	12,214,000.00	12,214,000.00	4.387420	%	30/360	44,656.62	-	-	44,656.62	-	-		12,214,000.00
G-RR	12,213,000.00	12,213,000.00	4.387420	%	30/360	44,652.96	-	-	44,652.96	-	-		12,213,000.00
H-RR	9,770,000.00	9,770,000.00	4.387420	%	30/360	35,720.91	-	-	35,720.91	-	-		9,770,000.00
J-RR	48,853,893.00	48,853,893.00	4.387420	%	30/360	177,773.54	-	-	177,773.54	-	-		48,853,893.00
S	-	-	0.000000	%	30/360	-	-	-	-	-	-		-
R	-	-	0.000000	%	30/360	-	-	-	-	-	-		-
Total	977,059,893.00	784,763,896.32				2,355,063.53	-	767,012.69	3,122,076.22	-	-		783,996,883.63
Notional
X-A	757,221,000.00	564,925,003.32	0.977274	%	30/360	460,072.06	-	-	460,072.06	-	(767,012.69	)	564,157,990.63
X-B	85,493,000.00	85,493,000.00	0.271893	%	30/360	19,370.81	-	-	19,370.81	-	-		85,493,000.00
X-D	29,311,000.00	29,311,000.00	1.387420	%	30/360	33,888.88	-	-	33,888.88	-	-		29,311,000.00
Total	872,025,000.00	679,729,003.32				513,331.75	-	-	513,331.75	-	(767,012.69	)	678,961,990.63

Grand Total	1,849,084,893.00	1,464,492,899.64				2,868,395.28	-	767,012.69	3,635,407.97	-	(767,012.69	)	1,462,958,874.26


Reports Available at sf.citidirect.com	v. 21.09.28	Page 2 of 42	© Copyright 2025 Citigroup

Citigroup Commercial Mortgage Trust 2017-C4

Commercial Mortgage Pass-Through Certificates, Series 2017-C4

DISTRIBUTION SUMMARY - FACTORS

May 14, 2025


					Other				Non-Cash
			Record	Interest	(As Interest)	Principal	Total	Realized Loss	Balance	Current
Class	CUSIP		Date	Distributed	Distributed	Distributed	Distributed	/(Recovery)	Change	Balance

A-1	17326	FAA5	04/30/2025	-	-	-	-	-	-	-
A-2	17326	FAB3	04/30/2025	-	-	-	-	-	-	-
A-3	17326	FAC1	04/30/2025	2.22557067	-	-	2.22557067	-	-	832.24829433
A-4	17326	FAD9	04/30/2025	2.89250001	-	-	2.89250001	-	-	1,000.00000000
A-AB	17326	FAE7	04/30/2025	1.36795813	-	18.89193818	20.25989631	-	-	478.99999975
A-S	17326	FAH0	04/30/2025	3.13666662	-	-	3.13666662	-	-	1,000.00000000
X-A	17326	FAF4	04/30/2025	0.60757964	-	-	0.60757964	-	-	745.03743376
B	17326	FAJ6	04/30/2025	3.41333333	-	-	3.41333333	-	-	1,000.00000000
C	17326	FAK3	04/30/2025	3.44784984	-	-	3.44784984	-	-	1,000.00000000
X-B	17326	FAG2	04/30/2025	0.22657773	-	-	0.22657773	-	-	1,000.00000000
D	17326FAL1 U1746HAA4		04/30/2025	2.50000000	-	-	2.50000000	-	-	1,000.00000000
X-D	17326FAY3 U1746HAG1		04/30/2025	1.15618300	-	-	1.15618300	-	-	1,000.00000000
E-RR	17326	FAP2	04/30/2025	3.65618313	-	-	3.65618313	-	-	1,000.00000000
F-RR	17326	FAR8	04/30/2025	3.65618307	-	-	3.65618307	-	-	1,000.00000000
G-RR	17326	FAT4	04/30/2025	3.65618276	-	-	3.65618276	-	-	1,000.00000000
H-RR	17326	FAV9	04/30/2025	3.65618321	-	-	3.65618321	-	-	1,000.00000000
J-RR	17326	FAX5	04/30/2025	3.63888176	-	-	3.63888176	-	-	1,000.00000000
S	17326	FBD8	04/30/2025	-	-	-	-	-	-	-
R	17326	FBA4	04/30/2025	-	-	-	-	-	-	-


Reports Available at sf.citidirect.com	v. 21.09.28	Page 3 of 42	© Copyright 2025 Citigroup

Citigroup Commercial Mortgage Trust 2017-C4

Commercial Mortgage Pass-Through Certificates, Series 2017-C4

DISTRIBUTION INFORMATION - INTEREST DETAIL

May 14, 2025


			Rate					Interest			Shortfall				Paid
															Cap
							Accrual	Net	Accreted	Non	Carry	Cap Carryover			Carryover
Class	Uncapped Capped				Next		Dates	Accrued	/Deferred	Recovered	Forward	/Basis Risk	Accrued	Carry Forward /Basis Risk		Total

A-1	2.12100	%	2.12100	%	2.12100	%	04/01-04/30	-	-	-	-	-	-	-	-	-
A-2	3.19000	%	3.19000	%	3.19000	%	04/01-04/30	-	-	-	-	-	-	-	-	-
A-3	3.20900	%	3.20900	%	3.20900	%	04/01-04/30	534,136.96	-	-	-	-	534,136.96	-	-	534,136.96
A-4	3.47100	%	3.47100	%	3.47100	%	04/01-04/30	785,866.22	-	-	-	-	785,866.22	-	-	785,866.22
A-AB	3.29700	%	3.29700	%	3.29700	%	04/01-04/30	55,539.10	-	-	-	-	55,539.10	-	-	55,539.10
A-S	3.76400	%	3.76400	%	3.76400	%	04/01-04/30	229,854.93	-	-	-	-	229,854.93	-	-	229,854.93
B	4.09600	%	4.09600	%	4.09600	%	04/01-04/30	154,245.12	-	-	-	-	154,245.12	-	-	154,245.12
C	4.34400	%	4.13742	%	4.13742	%	04/01-04/30	138,962.14	-	-	-	-	138,962.14	-	-	138,962.14
D	3.00000	%	3.00000	%	3.00000	%	04/01-04/30	73,277.50	-	-	-	-	73,277.50	-	-	73,277.50
E-RR	4.59400	%	4.38742	%	4.38742	%	04/01-04/30	80,377.53	-	-	-	-	80,377.53	-	-	80,377.53
F-RR	4.59400	%	4.38742	%	4.38742	%	04/01-04/30	44,656.62	-	-	-	-	44,656.62	-	-	44,656.62
G-RR	4.59400	%	4.38742	%	4.38742	%	04/01-04/30	44,652.96	-	-	-	-	44,652.96	-	-	44,652.96
H-RR	4.59400	%	4.38742	%	4.38742	%	04/01-04/30	35,720.91	-	-	-	-	35,720.91	-	-	35,720.91
J-RR	4.59400	%	4.38742	%	4.38742	%	04/01-04/30	178,618.78	-	-	1,784.57	-	177,773.54	-	-	177,773.54
S	0.00000	%	0.00000	%	0.00000	%	04/01-04/30	-	-	-	-	-	-	-	-	-
R	0.00000	%	0.00000	%	0.00000	%	04/01-04/30	-	-	-	-	-	-	-	-	-
Total								2,355,908.77	-	-	1,784.57	-	2,355,063.53	-	-	2,355,063.53
Notional
X-A	1.27500	%	0.97727	%	0.97727	%	04/01-04/30	460,072.06	-	-	-	-	460,072.06	-	-	460,072.06
X-B	0.38100	%	0.27189	%	0.27189	%	04/01-04/30	19,370.81	-	-	-	-	19,370.81	-	-	19,370.81
X-D	1.59400	%	1.38742	%	1.38742	%	04/01-04/30	33,888.88	-	-	-	-	33,888.88	-	-	33,888.88
Total								513,331.75	-	-	-	-	513,331.75	-	-	513,331.75

Grand Total								2,869,240.52	-	-	1,784.57	-	2,868,395.28	-	-	2,868,395.28


Reports Available at sf.citidirect.com	v. 21.09.28	Page 4 of 42	© Copyright 2025 Citigroup

Citigroup Commercial Mortgage Trust 2017-C4

Commercial Mortgage Pass-Through Certificates, Series 2017-C4

DISTRIBUTION INFORMATION - INTEREST SHORTFALL DETAIL

May 14, 2025


											Cap Carryover /
	Non-Recov Shortfall				Carry Forward Interest					Basis Risk Shortfall
			Other
Class	PPIS	SSRA	Shortfall	Prior	Int. on Prior	New	Paid	Outstanding	Prior	Int. on Prior	New	Paid	Outstanding

A-1	-	-	-	-	-	-	-	-	-	-	-	-	-
A-2	-	-	-	-	-	-	-	-	-	-	-	-	-
A-3	-	-	-	-	-	-	-	-	-	-	-	-	-
A-4	-	-	-	-	-	-	-	-	-	-	-	-	-
A-AB	-	-	-	-	-	-	-	-	-	-	-	-	-
A-S	-	-	-	-	-	-	-	-	-	-	-	-	-
B	-	-	-	-	-	-	-	-	-	-	-	-	-
C	-	-	-	-	-	-	-	-	-	-	-	-	-
D	-	-	-	-	-	-	-	-	-	-	-	-	-
E-RR	-	-	-	-	-	-	-	-	-	-	-	-	-
F-RR	-	-	-	-	-	-	-	-	-	-	-	-	-
G-RR	-	-	-	-	-	-	-	-	-	-	-	-	-
H-RR	-	-	-	-	-	-	-	-	-	-	-	-	-
J-RR	-	-	-	256,915.61	939.33	845.24	-	258,700.18	-	-	-	-	-
S	-	-	-	-	-	-	-	-	-	-	-	-	-
R	-	-	-	-	-	-	-	-	-	-	-	-	-
Total	-	-	-	256,915.61	939.33	845.24	-	258,700.18	-	-	-	-	-
Notional
X-A	-	-	-	-	-	-	-	-	-	-	-	-	-
X-B	-	-	-	-	-	-	-	-	-	-	-	-	-
X-D	-	-	-	-	-	-	-	-	-	-	-	-	-
Total	-	-	-	-	-	-	-	-	-	-	-	-	-

Grand Total	-	-	-	256,915.61	939.33	845.24	-	258,700.18	-	-	-	-	-


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Citigroup Commercial Mortgage Trust 2017-C4

Commercial Mortgage Pass-Through Certificates, Series 2017-C4

DISTRIBUTION INFORMATION - PRINCIPAL DETAIL

May 14, 2025


					Non-Cash		Cumulative
	Prior	Principal	Accreted	Realized Loss	Balance	Current	Realized	Class %		Class %		Sub %		Sub %
Class	Balance	Distributed	Principal	/(Recovery)	Change	Balance	Loss	Original		Current		Original		Current

A-1	-	-	-	-	-	-	-	2.84	%	0.00	%	30.00	%	37.39	%
A-2	-	-	-	-	-	-	-	10.63	%	0.00	%	30.00	%	37.39	%
A-3	199,739,590.64	-	-	-	-	199,739,590.64	-	24.56	%	25.48	%	30.00	%	37.39	%
A-4	271,691,000.00	-	-	-	-	271,691,000.00	-	27.81	%	34.65	%	30.00	%	37.39	%
A-AB	20,214,412.68	767,012.69	-	-	-	19,447,399.99	-	4.16	%	2.48	%	30.00	%	37.39	%
A-S	73,280,000.00	-	-	-	-	73,280,000.00	-	7.50	%	9.35	%	22.50	%	28.04	%
B	45,189,000.00	-	-	-	-	45,189,000.00	-	4.62	%	5.76	%	17.88	%	22.28	%
C	40,304,000.00	-	-	-	-	40,304,000.00	-	4.13	%	5.14	%	13.75	%	17.14	%
D	29,311,000.00	-	-	-	-	29,311,000.00	-	3.00	%	3.74	%	10.75	%	13.40	%
E-RR	21,984,000.00	-	-	-	-	21,984,000.00	-	2.25	%	2.80	%	8.50	%	10.59	%
F-RR	12,214,000.00	-	-	-	-	12,214,000.00	-	1.25	%	1.56	%	7.25	%	9.04	%
G-RR	12,213,000.00	-	-	-	-	12,213,000.00	-	1.25	%	1.56	%	6.00	%	7.48	%
H-RR	9,770,000.00	-	-	-	-	9,770,000.00	-	1.00	%	1.25	%	5.00	%	6.23	%
J-RR	48,853,893.00	-	-	-	-	48,853,893.00	-	5.00	%	6.23	%	0.00	%	0.00	%
S	-	-	-	-	-	-	-	0.00	%	0.00	%	0.00	%	0.00	%
R	-	-	-	-	-	-	-	0.00	%	0.00	%	0.00	%	0.00	%

Total	784,763,896.32	767,012.69	-	-	-	783,996,883.63	-	100.00	%	100.00	%


Reports Available at sf.citidirect.com	v. 21.09.28	Page 6 of 42	© Copyright 2025 Citigroup

Citigroup Commercial Mortgage Trust 2017-C4

Commercial Mortgage Pass-Through Certificates, Series 2017-C4

RECONCILIATION DETAIL

May 14, 2025


SOURCE OF FUNDS			ALLOCATION OF FUNDS

Interest Funds Available			Scheduled Fees
Scheduled Interest	2,883,829.82		Servicing Fee	8,759.77
Gross Prepayment Interest Shortfall	-		Trustee/Certificate Administrator Fee	4,185.45
Interest Adjustments	-		Operating Advisor Fee	1,147.10
ASER Amount	-		Asset Representations Reviewer Ongoing Fee	170.03
Realized Loss in Excess of Principal Balance	-		CREFC Intellectual Property Royalty License Fee	327.01
Total Interest Funds Available		2,883,829.82	Total Scheduled Fees		14,589.36
Principal Funds Available			Additional Fees, Expenses, etc.
Scheduled Principal	767,012.69		Additional Servicing Fee	-
Curtailments	-		Special Servicing Fee	-
Unscheduled Principal Collections	-		Work-out Fee	468.84
Net Liquidation Proceeds	-		Liquidation Fee	-
Repurchased Principal	-		Trust Fund Expenses	-
Substitution Principal	-		Trust Advisor Expenses	-
Other Principal	-		Reimbursement of Interest on Advances to the Servicer	376.34
			Borrower Reimbursable Trust Fund Expenses	-
Total Principal Funds Available		767,012.69
			Other Expenses	-
Other Funds Available
Yield Maintenance Charges	-		Total Additional Fees, Expenses, etc.		845.18
Withdrawal of Withheld Amounts from the Interest Reserve			Distributions
Account	-
			Interest Distribution	2,868,395.28
Deposit of Withheld Amounts to the Interest Reserve Account	-
			Principal Distribution	767,012.69
Total Other Funds Available		-	Yield Maintenance Charge Distribution	-
			Total Distributions		3,635,407.97




Total Funds Available		3,650,842.51
			Total Funds Allocated		3,650,842.51


Reports Available at sf.citidirect.com	v. 21.09.28	Page 7 of 42	© Copyright 2025 Citigroup

Citigroup Commercial Mortgage Trust 2017-C4

Commercial Mortgage Pass-Through Certificates, Series 2017-C4

OTHER INFORMATION

Interest Reserve Account Information

May 14, 2025


Beginning Interest Reserve Account Balance	0.00
Deposit of Withheld Amounts to the Interest Reserve Account	0.00
Withdrawal of Withheld Amounts from the Interest Reserve Account	0.00
Ending Interest Reserve Account Balance	0.00
Excess Liquidation Proceeds Reserve Account Information
Beginning Excess Liquidation Proceeds Reserve Account Balance	0.00
Deposit to the Excess Liquidation Proceeds Reserve Account	0.00
Withdrawal from the Excess Liquidation Proceeds Reserve Account	0.00
Ending Excess Liquidation Proceeds Reserve Account Balance	0.00
ARD Mortgage Loan Information
Excess Interest	0.00
Collateral Information
% of Cut-Off Principal Balance Outstanding	80.240412	%
Controlling Class Information
Controlling Class is Class J-RR.
The Controlling Class Representative is KKR Real Estate Credit Opportunity Partners Aggregator I L.P.
There Are No Disclosable Special Servicer Fees.


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Citigroup Commercial Mortgage Trust 2017-C4

Commercial Mortgage Pass-Through Certificates, Series 2017-C4

STRATIFICATION DETAIL

May 14, 2025


Anticipated Remaining Term

Anticipated Remaining	Asset	Ending Scheduled	% of			Wtd Avg
Term Range	Count	Balance	Agg.Bal. WAC		WAM	DSCR

60 Months or Less	45	757,314,143.17	96.60	4.3876	27	1.877537
61 to 90 Months	3	26,682,741.22	3.40	5.0333	77	1.514409
91 Months or Greater	0	0.00	0.00	0.0000	0	0.000000
Total	48	783,996,884.39	100.00	4.4096	29	1.865179

Debt Service Coverage Ratio

Debt Service Coverage	Asset	Ending Scheduled	% of			Wtd Avg
Ratio Range	Count	Balance	Agg.Bal. WAC		WAM	DSCR

1.250 or Less	8	170,767,871.52	21.78	4.6297	26	0.937460
1.251 to 1.500	8	93,494,585.43	11.93	4.6141	36	1.396532
1.501 to 1.750	12	180,396,699.62	23.01	4.5742	30	1.598727
1.751 to 2.000	4	32,717,273.34	4.17	4.7861	26	1.824838
2.001 to 2.250	1	38,137,112.46	4.86	4.1600	29	2.050000
2.251 to 2.500	6	108,469,330.71	13.84	4.0991	28	2.422838
2.501 to 2.750	4	83,021,723.38	10.59	4.2914	27	2.712234
2.751 to 3.000	2	27,827,355.38	3.55	3.4263	25	2.901176
3.001 to 3.250	1	4,067,062.52	0.52	3.8900	28	3.230000
3.251 to 3.500	0	0.00	0.00	0.0000	0	0.000000
3.501 to 3.750	1	37,997,870.03	4.85	4.0400	26	3.520000
3.751 to 4.000	0	0.00	0.00	0.0000	0	0.000000
4.001 or Greater	1	7,100,000.00	0.91	4.1000	28	4.190000
Total	48	783,996,884.39	100.00	4.4096	29	1.865179


Reports Available at sf.citidirect.com	v. 21.09.28	Page 9 of 42	© Copyright 2025 Citigroup

Citigroup Commercial Mortgage Trust 2017-C4

Commercial Mortgage Pass-Through Certificates, Series 2017-C4

STRATIFICATION DETAIL

May 14, 2025


Ending Schedule Balance

Ending Schedule Balance	Asset	Ending Scheduled	% of			Wtd Avg
Range	Count	Balance	Agg.Bal. WAC WAM			DSCR

1 to 5,000,000	11	32,792,035.77	4.18	4.7980	29	1.973135
10,000,001 to 15,000,000	4	49,489,431.85	6.31	4.7816	27	1.348864
15,000,001 to 20,000,000	4	71,106,385.14	9.07	4.6655	38	1.697534
20,000,001 to 25,000,000	7	164,602,054.43	21.00	4.2994	27	2.031626
25,000,001 to 30,000,000	2	52,424,881.57	6.69	4.3511	28	1.393853
30,000,001 to 35,000,000	3	100,216,230.42	12.78	4.5743	25	0.948929
35,000,001 to 40,000,000	2	76,134,982.49	9.71	4.1001	27	2.783656
40,000,001 to 45,000,000	1	41,000,000.00	5.23	3.9950	28	2.720000
45,000,001 to 50,000,000	1	50,000,000.00	6.38	3.6000	30	2.450000
5,000,001 to 10,000,000	12	86,230,882.72	11.00	4.7718	33	1.969098
50,000,001 to 55,000,000	0	0.00	0.00	0.0000	0	0.000000
55,000,001 to 60,000,000	1	60,000,000.00	7.65	4.4953	28	1.530000
60,000,001 to 65,000,000	0	0.00	0.00	0.0000	0	0.000000
65,000,001 to 70,000,000	0	0.00	0.00	0.0000	0	0.000000
70,000,001 to 75,000,000	0	0.00	0.00	0.0000	0	0.000000
75,000,001 to 80,000,000	0	0.00	0.00	0.0000	0	0.000000
80,000,001 to 85,000,000	0	0.00	0.00	0.0000	0	0.000000
85,000,000+	0	0.00	0.00	0.0000	0	0.000000
Total	48	783,996,884.39	100.00	4.4096	29	1.865179


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Citigroup Commercial Mortgage Trust 2017-C4

Commercial Mortgage Pass-Through Certificates, Series 2017-C4

STRATIFICATION DETAIL

May 14, 2025


Loan Rate

	Asset	Ending Scheduled	% of			Wtd Avg
Loan Rate Range	Count	Balance	Agg.Bal. WAC WAM			DSCR

4.00 or Less	5	145,611,587.00	18.57	3.7266	27	2.446170
4.01 to 4.25	4	118,234,982.49	15.08	4.1149	27	2.283864
4.26 to 4.50	9	206,864,495.88	26.39	4.4198	27	1.611523
4.51 to 4.75	13	189,778,978.11	24.21	4.6381	27	1.721249
4.76 to 5.00	5	15,705,498.87	2.00	4.9316	27	1.612329
5.01 to 5.25	10	95,555,614.42	12.19	5.1132	39	1.399021
5.26 to 5.50	1	2,103,019.15	0.27	5.2850	27	2.460000
5.51 to 5.75	1	10,142,708.47	1.29	5.5470	27	1.170000
5.76 to 6.00	0	0.00	0.00	0.0000	0	0.000000
6.01 to 6.25	0	0.00	0.00	0.0000	0	0.000000
6.26 to 6.50	0	0.00	0.00	0.0000	0	0.000000
6.51 to 6.75	0	0.00	0.00	0.0000	0	0.000000
6.76 to 7.00	0	0.00	0.00	0.0000	0	0.000000
7.01 or Greater	0	0.00	0.00	0.0000	0	0.000000
Total	48	783,996,884.39	100.00	4.4096	29	1.865179

Property Type

	Asset	Ending Scheduled	% of			Wtd Avg
Property Type Range	Count	Balance	Agg.Bal. WAC WAM			DSCR

Industrial	1	7,100,000.00	0.91	4.1000	28	4.190000
Lodging	7	124,761,215.41	15.91	4.7132	25	2.219229
Mixed Use	8	158,441,678.32	20.21	4.3004	26	1.931736
Multifamily	3	44,578,019.15	5.69	4.7461	27	1.672684
Office	9	222,670,120.90	28.40	4.1941	30	1.571481
Other	1	6,000,000.00	0.77	5.2500	25	1.820000
Retail	14	185,362,425.12	23.64	4.3855	32	1.853522
Self Storage	1	5,220,288.71	0.67	4.9150	28	0.750000
Total	48	783,996,884.39	100.00	4.4096	29	1.865179


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Citigroup Commercial Mortgage Trust 2017-C4

Commercial Mortgage Pass-Through Certificates, Series 2017-C4

STRATIFICATION DETAIL

May 14, 2025


Remaining Amortization Term

Remaining Amortization	Asset	Ending Scheduled	% of			Wtd Avg
Term Range	Count	Balance	Agg.Bal.	WAC	WAM	DSCR

240 Months or Less	23	429,232,212.97	54.75	4.3180	29	1.929375
241 to 270 Months	25	354,764,671.42	45.25	4.5204	29	1.787507
271 to 300 Months	0	0.00	0.00	0.0000	0	0.000000
301 Months or Greater	0	0.00	0.00	0.0000	0	0.000000
Total	48	783,996,884.39	100.00	4.4096	29	1.865179

Seasoning

	Asset	Ending Scheduled	% of			Wtd Avg
Seasoning Range	Count	Balance	Agg.Bal.	WAC	WAM	DSCR

12 Months or Less	0	0.00	0.00	0.0000	0	0.000000
13 to 24 Months	0	0.00	0.00	0.0000	0	0.000000
25 to 36 Months	1	980,000.00	0.13	5.0600	89	1.390000
37 to 48 Months	2	25,702,741.22	3.28	5.0323	77	1.519152
49 Months or Greater	45	757,314,143.17	96.60	4.3876	27	1.877537
Total	48	783,996,884.39	100.00	4.4096	29	1.865179


Reports Available at sf.citidirect.com	v. 21.09.28	Page 12 of 42	© Copyright 2025 Citigroup

Citigroup Commercial Mortgage Trust 2017-C4

Commercial Mortgage Pass-Through Certificates, Series 2017-C4

STRATIFICATION DETAIL

May 14, 2025


State

	Asset	Ending Scheduled	% of			Wtd Avg
State Range	Count	Balance	Agg.Bal. WAC WAM			DSCR

California	9	154,835,231.34	19.75	4.6460	26	1.597031
Colorado	3	22,367,060.81	2.85	4.6705	27	2.412714
Connecticut	1	2,103,019.15	0.27	5.2850	27	2.460000
Delaware	0	0.00	0.00	0.0000	0	0.000000
District of Columbia	1	50,000,000.00	6.38	3.6000	30	2.450000
Florida	2	30,935,000.00	3.95	4.6507	43	1.740000
Georgia	6	28,851,097.49	3.68	4.8267	27	1.748349
Illinois	0	0.00	0.00	0.0000	0	0.000000
Iowa	1	980,000.00	0.13	5.0600	89	1.390000
Kentucky	1	37,997,870.03	4.85	4.0400	26	3.520000
Louisiana	1	25,544,524.48	3.26	3.9840	27	1.440000
Maryland	0	0.00	0.00	0.0000	0	0.000000
Massachusetts	3	92,475,000.00	11.80	4.5397	28	1.683066
Michigan	1	3,316,072.59	0.42	4.9800	27	1.600000
Missouri	1	6,000,000.00	0.77	5.2500	25	1.820000
Nevada	1	23,806,107.27	3.04	4.2591	26	2.480000
New York	2	60,000,000.00	7.65	3.7750	26	1.676667
North Carolina	1	8,669,552.07	1.11	4.5340	27	1.500000
Ohio	1	2,756,160.32	0.35	5.1500	28	1.320000
Pennsylvania	1	26,880,357.09	3.43	4.7000	29	1.350000
South Carolina	1	5,833,052.48	0.74	4.6400	28	1.660000
Texas	0	0.00	0.00	0.0000	0	0.000000
Utah	1	5,220,288.71	0.67	4.9150	28	0.750000
Various	6	119,789,223.75	15.28	4.5882	34	1.288853
Virginia	1	24,000,000.00	3.06	4.5110	27	2.720000
Washington	1	6,570,204.29	0.84	5.0250	29	2.260000
West Virginia	1	4,067,062.52	0.52	3.8900	28	3.230000
Wisconsin	1	41,000,000.00	5.23	3.9950	28	2.720000
Total	48	783,996,884.39	100.00	4.4096	29	1.865179


Reports Available at sf.citidirect.com	v. 21.09.28	Page 13 of 42	© Copyright 2025 Citigroup

Citigroup Commercial Mortgage Trust 2017-C4

Commercial Mortgage Pass-Through Certificates, Series 2017-C4

MORTGAGE LOAN DETAIL

May 14, 2025


			Prop			Paid					Beginning	Ending		Payment Workout Mod
			Type			Through	Gross		Interest	Principal	Scheduled	Scheduled	Maturity	Status		Strategy Code
Loan ID	OMCR		(1)	City	State	Date	Coupon		Payment	Payment	Balance	Balance	Date	(2	)	(3	)	(4	)

30313280	1		MU	Boston	MA	05/06/2025	4.49530	%	224,765.00	-	60,000,000.00	60,000,000.00	09/06/2027	0		0		0
30313291	10		RT	Baton Rouge	LA	05/01/2025	3.98400	%	84,968.67	48,449.46	25,592,973.94	25,544,524.48	08/01/2027	0		0		0
30313292	11		RT	Langhorne	PA	05/06/2025	4.70000	%	105,437.21	39,781.38	26,920,138.47	26,880,357.09	10/06/2027	0		0		0
30313293	12		RT	Various	XX	05/06/2025	4.40000	%	82,829.59	65,716.77	22,589,889.41	22,524,172.64	09/06/2027	0		0		0
30313294	13		OF	La Jolla	CA	05/03/2025	4.55000	%	88,390.64	40,043.81	23,311,818.33	23,271,774.52	10/06/2027	0		0		0
30313295	14		MU	Windsor Mill	NV	05/06/2025	4.25906	%	84,629.63	38,487.98	23,844,595.25	23,806,107.27	07/06/2027	0		0		0
30313296	15		MU	New York	NY	05/06/2025	3.25000	%	67,708.33	-	25,000,000.00	25,000,000.00	06/06/2027	0		0		0
30313340	16		MF	Various	XX	05/06/2025	4.71200	%	98,166.67	-	25,000,000.00	25,000,000.00	09/06/2027	0		0		0
30313300	17		LO	Arlington	VA	05/06/2025	4.51100	%	90,220.00	-	24,000,000.00	24,000,000.00	08/06/2027	0		0		0
30313281	1	A	MU	Boston	MA	05/06/2025	4.49530	%	56,191.25	-	15,000,000.00	15,000,000.00	09/06/2027	0		0		0
30313231	2		OF	Washington	DC	05/01/2025	3.60000	%	150,000.00	-	50,000,000.00	50,000,000.00	11/01/2027	0		0		0
30313251	20		OF	Various	XX	05/06/2025	4.26400	%	65,396.23	40,547.13	18,404,191.05	18,363,643.92	08/06/2027	0		0		0
30313304	21		RT	Miami	FL	05/06/2025	4.47600	%	78,330.00	-	21,000,000.00	21,000,000.00	08/06/2027	0		0		0
30313305	22		MU	Los Angeles	CA	05/06/2025	4.68300	%	76,098.75	-	19,500,000.00	19,500,000.00	07/06/2027	0		0		0
30313306	23		MF	Methuen	MA	05/06/2025	4.73000	%	68,880.63	-	17,475,000.00	17,475,000.00	09/06/2027	0		0		0
30313248	24		RT	Various	XX	05/08/2025	5.04000	%	66,311.79	20,780.14	15,788,521.36	15,767,741.22	09/08/2031	0		0		0
30313310	27		MH	Parachute	CO	05/06/2025	4.69500	%	49,074.54	21,289.75	12,543,013.13	12,521,723.38	08/06/2027	0		0		0
30313311	28		LO	Los Angeles	CA	04/06/2025	5.54700	%	47,016.66	28,553.28	10,171,261.75	10,142,708.47	08/06/2027	B		0		8
30313312	29		OF	San Jose	CA	05/06/2025	4.58000	%	45,132.08	-	11,825,000.00	11,825,000.00	10/06/2027	0		8		0
30313313	30		OF	Jacksonville	FL	05/06/2025	5.02000	%	41,561.42	-	9,935,000.00	9,935,000.00	10/06/2031	0		0		0
30313315	32		RT	Greensboro	NC	05/06/2025	4.53400	%	32,817.37	16,120.29	8,685,672.36	8,669,552.07	08/06/2027	0		0		0
30313316	33		LO	Brunswick	GA	04/06/2025	5.24000	%	36,635.32	16,041.00	8,389,768.15	8,373,727.15	09/06/2027	B		0		8
30298889	34		RT	Peach Tree	GA	05/06/2025	4.28000	%	30,370.17	-	8,515,000.00	8,515,000.00	09/06/2027	0		0		0
30313317	35		MH	Various	XX	05/06/2025	5.15000	%	32,224.52	12,549.63	7,508,625.60	7,496,075.97	10/06/2027	0		0		0
30313318	36		MH	Fort Collins	CO	05/06/2025	4.50000	%	26,373.39	14,921.46	7,032,903.51	7,017,982.05	09/06/2027	0		0		0
30313319	37		LO	Sequim	WA	04/06/2025	5.02500	%	27,593.51	19,290.29	6,589,494.58	6,570,204.29	10/06/2027	B		8		8
30313321	39		IN	San Diego	CA	05/06/2025	4.10000	%	24,258.33	-	7,100,000.00	7,100,000.00	09/06/2027	0		0		0
30313283	4		RT	Pleasant Prairie	WI	05/01/2025	3.99500	%	136,495.83	-	41,000,000.00	41,000,000.00	09/01/2027	0		0		0
30313322	40		MU	West Columbia	SC	05/06/2025	4.64000	%	22,601.50	12,163.54	5,845,216.02	5,833,052.48	09/06/2027	0		0		0
30313323	41		N/A	St. Louis	MO	05/06/2025	5.25000	%	26,250.00	-	6,000,000.00	6,000,000.00	06/06/2027	0		0		0
30313324	42		SS	Provo	UT	05/06/2025	4.91500	%	21,424.33	10,474.00	5,230,762.71	5,220,288.71	09/06/2027	0		0		0
30313325	43		OF	Venice	CA	05/06/2025	4.62450	%	21,195.63	-	5,500,000.00	5,500,000.00	08/06/2027	0		0		0


Reports Available at sf.citidirect.com	v. 21.09.28	Page 14 of 42	© Copyright 2025 Citigroup

Citigroup Commercial Mortgage Trust 2017-C4

Commercial Mortgage Pass-Through Certificates, Series 2017-C4

MORTGAGE LOAN DETAIL

May 14, 2025


		Prop			Paid					Beginning	Ending		Payment Workout Mod
		Type			Through	Gross		Interest	Principal	Scheduled	Scheduled	Maturity	Status		Strategy Code
Loan ID	OMCR	(1)	City	State	Date	Coupon		Payment	Payment	Balance	Balance	Date	(2	)	(3	)	(4	)

30313326	44	RT	Parkersburg	WV	05/06/2025	3.89000	%	13,229.97	14,163.59	4,081,226.11	4,067,062.52	09/06/2027	0		0		0
30313327	45	MU	Cartersville	GA	05/06/2025	4.75000	%	17,939.05	9,447.44	4,531,970.54	4,522,523.10	06/06/2027	0		0		0
30313328	46	MU	Temecula	CA	05/06/2025	4.54100	%	18,116.08	7,340.14	4,787,335.61	4,779,995.47	08/06/2027	0		0		0
30313330	48	LO	Richmond Hill	GA	05/06/2025	5.25000	%	13,592.88	8,878.91	3,106,943.96	3,098,065.05	10/06/2027	0		0		0
30313331	49	RT	Grand Rapids	MI	05/06/2025	4.98000	%	13,785.62	5,763.78	3,321,836.37	3,316,072.59	08/06/2027	0		0		0
30313284	5	OF	San Jose	CA	05/06/2025	4.16000	%	132,422.77	61,764.70	38,198,877.16	38,137,112.46	10/06/2027	0		0		0
30313333	51	MH	Arvada	CO	05/06/2025	4.98500	%	11,768.77	5,648.15	2,833,003.53	2,827,355.38	08/06/2027	0		0		0
30313335	53	RT	Willoughby	OH	05/06/2025	5.15000	%	11,851.47	5,348.36	2,761,508.68	2,756,160.32	09/06/2027	0		0		0
30313336	54	RT	Duluth	GA	05/06/2025	4.95000	%	10,069.48	3,808.54	2,441,086.41	2,437,277.87	10/06/2027	0		0		0
30313337	55	MF	Hartford	CT	05/06/2025	5.28500	%	9,279.77	4,025.19	2,107,044.34	2,103,019.15	08/06/2027	0		0		0
30313338	56	RT	Dacula	GA	05/06/2025	4.79000	%	7,615.68	3,389.60	1,907,893.92	1,904,504.32	09/06/2027	0		0		0
30313339	57	RT	Milford	IA	05/06/2025	5.06000	%	4,132.33	-	980,000.00	980,000.00	10/06/2032	0		0		0
30313285	6	LO	Los Angeles	CA	05/06/2025	5.11400	%	147,660.38	69,863.76	34,648,504.18	34,578,640.42	03/06/2027	0		8		8
30313288	7	LO	Louisville	KY	05/06/2025	4.04000	%	128,117.28	56,768.44	38,054,638.47	37,997,870.03	07/06/2027	0		0		0
30313289	8	OF	Various	XX	05/06/2025	4.45000	%	113,857.63	65,592.18	30,703,182.18	30,637,590.00	09/06/2027	0		0		0
30313290	9	OF	New York	NY	04/06/2025	4.15000	%	121,041.67	-	35,000,000.00	35,000,000.00	09/06/2027	B		0		8
Total	Count = 48							2,883,829.82	767,012.69	784,763,897.08	783,996,884.39


Reports Available at sf.citidirect.com	v. 21.09.28	Page 15 of 42	© Copyright 2025 Citigroup

Citigroup Commercial Mortgage Trust 2017-C4

Commercial Mortgage Pass-Through Certificates, Series 2017-C4

NOI DETAIL

May 14, 2025


			Property			Ending	Preceding		Most		Most Recent	Most Recent
			Type			Scheduled	Fiscal		Recent		Financial As of	Financial Asof
Loan ID	OMCR		(1)	City	State	Balance	Year NOI		NOI		Start Date	End Date

30313280	1		MU	Boston	MA	60,000,000.00	5,718,002.80		5,718,002.80		Not Available	Not Available
30313291	10		RT	Baton Rouge	LA	25,544,524.48	28,401,193.60		28,401,193.60		Not Available	Not Available
30313292	11		RT	Langhorne	PA	26,880,357.09	2,492,465.69		2,492,465.69		Not Available	Not Available
30313293	12		RT	Various	XX	22,524,172.64	3,074,102.21		3,074,102.21		Not Available	Not Available
30313294	13		OF	La Jolla	CA	23,271,774.52	2,424,374.21		2,424,374.21		Not Available	Not Available
30313295	14		MU	Windsor Mill	NV	23,806,107.27	12,658,534.92		12,658,534.92		Not Available	Not Available
30313296	15		MU	New York	NY	25,000,000.00	2,396,362.51		2,396,362.51		Not Available	Not Available
30313340	16		MF	Various	XX	25,000,000.00	4,117,670.07		4,117,670.07		Not Available	Not Available
30313300	17		LO	Arlington	VA	24,000,000.00	6,696,183.67		6,696,183.67		Not Available	Not Available
30313281	1	A	MU	Boston	MA	15,000,000.00	5,718,002.80		5,718,002.80		Not Available	Not Available
30313231	2		OF	Washington	DC	50,000,000.00	25,172,837.32		18,740,873.98		Not Available	Not Available
30313251	20		OF	Various	XX	18,363,643.92	4,536,189.85		4,536,189.85		Not Available	Not Available
30313304	21		RT	Miami	FL	21,000,000.00	1,662,193.91		1,662,193.91		Not Available	Not Available
30313305	22		MU	Los Angeles	CA	19,500,000.00	2,288,130.95		2,288,130.95		Not Available	Not Available
30313306	23		MF	Methuen	MA	17,475,000.00	1,993,873.32		1,993,873.32		Not Available	Not Available
30313248	24		RT	Various	XX	15,767,741.22	3,181,533.03		3,407,452.53		Not Available	Not Available
30313310	27		MH	Parachute	CO	12,521,723.38	2,084,178.74		2,342,337.06		Not Available	Not Available
30313311	28		LO	Los Angeles	CA	10,142,708.47	1,200,163.07		1,291,234.38		Not Available	Not Available
30313312	29		OF	San Jose	CA	11,825,000.00	(105,750.89	)	(105,750.89	)	Not Available	Not Available
30313313	30		OF	Jacksonville	FL	9,935,000.00	2,914,694.24		2,715,132.33		Not Available	Not Available
30313315	32		RT	Greensboro	NC	8,669,552.07	1,003,282.95		1,003,282.95		Not Available	Not Available
30313316	33		LO	Brunswick	GA	8,373,727.15	615,526.19		1,009,599.42		Not Available	Not Available
30298889	34		RT	Peach Tree	GA	8,515,000.00	886,994.04		886,994.04		Not Available	Not Available
30313317	35		MH	Various	XX	7,496,075.97	829,413.99		933,262.01		Not Available	Not Available
30313318	36		MH	Fort Collins	CO	7,017,982.05	650,410.14		807,555.45		Not Available	Not Available
30313319	37		LO	Sequim	WA	6,570,204.29	1,453,692.27		1,453,692.27		Not Available	Not Available
30313321	39		IN	San Diego	CA	7,100,000.00	1,374,878.17		1,374,878.17		Not Available	Not Available
30313283	4		RT	Pleasant Prairie	WI	41,000,000.00	16,688,610.00		16,688,610.00		Not Available	Not Available
30313322	40		MU	West Columbia	SC	5,833,052.48	815,392.94		197,123.94		01/01/2025	03/31/2025
30313323	41		N/A	St. Louis	MO	6,000,000.00	593,552.52		593,552.52		Not Available	Not Available
30313324	42		SS	Provo	UT	5,220,288.71	461,945.25		297,285.25		Not Available	Not Available
30313325	43		OF	Venice	CA	5,500,000.00	564,747.46		169,231.85		01/01/2025	03/31/2025
Reports Available at sf.citidirect.com			v. 21.09.28			Page 16 of 42					© Copyright 2025 Citigroup

Citigroup Commercial Mortgage Trust 2017-C4

Commercial Mortgage Pass-Through Certificates, Series 2017-C4

NOI DETAIL

May 14, 2025


		Property			Ending	Preceding	Most	Most Recent	Most Recent
		Type			Scheduled	Fiscal	Recent	Financial As of	Financial Asof
Loan ID	OMCR	(1)	City	State	Balance	Year NOI	NOI	Start Date	End Date

30313326	44	RT	Parkersburg	WV	4,067,062.52	1,166,161.94	1,166,161.94	Not Available	Not Available
30313327	45	MU	Cartersville	GA	4,522,523.10	632,928.96	505,873.10	Not Available	Not Available
30313328	46	MU	Temecula	CA	4,779,995.47	780,081.98	661,263.86	07/01/2024	12/31/2024
30313330	48	LO	Richmond Hill	GA	3,098,065.05	495,037.72	495,037.72	Not Available	Not Available
30313331	49	RT	Grand Rapids	MI	3,316,072.59	399,530.64	535,354.39	Not Available	Not Available
30313284	5	OF	San Jose	CA	38,137,112.46	4,834,863.79	4,804,855.95	Not Available	Not Available
30313333	51	MH	Arvada	CO	2,827,355.38	627,808.03	157,564.91	01/01/2025	03/31/2025
30313335	53	RT	Willoughby	OH	2,756,160.32	286,479.31	286,479.31	Not Available	Not Available
30313336	54	RT	Duluth	GA	2,437,277.87	330,190.68	330,190.68	Not Available	Not Available
30313337	55	MF	Hartford	CT	2,103,019.15	429,256.84	420,339.14	Not Available	Not Available
30313338	56	RT	Dacula	GA	1,904,504.32	235,924.81	235,924.81	Not Available	Not Available
30313339	57	RT	Milford	IA	980,000.00	71,414.16	71,414.16	Not Available	Not Available
30313285	6	LO	Los Angeles	CA	34,578,640.42	13,539,265.09	13,539,265.09	Not Available	Not Available
30313288	7	LO	Louisville	KY	37,997,870.03	5,970,019.73	7,239,812.92	Not Available	Not Available
30313289	8	OF	Various	XX	30,637,590.00	16,524,369.04	16,524,369.04	Not Available	Not Available
30313290	9	OF	New York	NY	35,000,000.00	2,790,005.88	2,810,000.53	Not Available	Not Available
Total	Count = 48				783,996,884.39	193,676,720.54	187,767,535.32


Reports Available at sf.citidirect.com	v. 21.09.28	Page 17 of 42	© Copyright 2025 Citigroup

Citigroup Commercial Mortgage Trust 2017-C4

Commercial Mortgage Pass-Through Certificates, Series 2017-C4

DELINQUENCY LOAN DETAIL

May 14, 2025


		Actual	Paid	Current P&I	Total P&I	Cumulative	Other Expense	Payment Workout				Most Recent
		Principal	Through	Advances	Advances	Accrued Unpaid	Advances	Status		Strategy		Special Serv	Foreclosure	Bankruptcy	REO
Loan ID	OMCR	Balance	Date	(Net of ASER)	Outstanding	Interest Advances	Outstanding	(2	)	(3	)	Transfer Date	Date	Date	Date

30313311	28	10,171,261.75	04/06/2025	75,358.04	75,527.56	4,858.24	-	B		0
30313316	33	8,389,768.15	04/06/2025	52,641.36	52,641.36	1,254.93	6,000.00	B		0
30313319	37	6,589,494.58	04/06/2025	46,856.34	788,353.35	529,624.14	1,082,040.00	B		8		05/27/2020		09/18/2020
30313290	9	35,000,000.00	04/06/2025	120,895.84	120,895.84	-	-	B		0
Total	Count = 4	60,150,524.48		295,751.58	1,037,418.11	535,737.31	1,088,040.00


Reports Available at sf.citidirect.com	v. 21.09.28	Page 18 of 42	© Copyright 2025 Citigroup

Citigroup Commercial Mortgage Trust 2017-C4

Commercial Mortgage Pass-Through Certificates, Series 2017-C4

COLLATERAL PERFORMANCE - DELINQUENCY AND LOAN STATUS DETAIL

–

May 14, 2025


							Delinquent
					(Does not include loans in Bankruptcy, Foreclosure, or REO)

			30	Day			60	Day			90	Day	120			+ Day	Bankruptcy				Foreclosure						REO

Distribution

Date	Count		Balance		Count		Balance		Count		Balance		Count		Balance		Count		Balance		Count		Balance		Count			Balance


	0		0		0		0		0		0		0		0		0		0		0		0		0			0
05/14/2025
	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%		0.0	%

	1		10,171,262		0		0		0		0		0		0		0		0		0		0		0			0
04/14/2025
	2.1	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%		0.0	%

	0		0		0		0		0		0		0		0		0		0		0		0		0			0
03/14/2025
	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%		0.0	%

	1		6,628,762		0		0		0		0		0		0		0		0		0		0		0			0
02/14/2025
	2.1	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%		0.0	%

	2		16,903,021		0		0		0		0		0		0		0		0		0		0		0			0
01/15/2025
	4.2	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%		0.0	%

	3		25,399,533		0		0		0		0		0		0		0		0		0		0		0			0
12/13/2024
	6.3	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%		0.0	%

	0		0		0		0		0		0		1		6,683,824		0		0		0		0		0			0
11/15/2024
	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	2.1	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%		0.0	%

	1		6,701,709		0		0		0		0		0		0		0		0		0		0		0			0
10/15/2024
	2.1	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%		0.0	%

	0		0		0		0		0		0		0		0		0		0		0		0		0			0
09/13/2024
	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%		0.0	%

	0		0		0		0		0		0		0		0		0		0		0		0		0			0
08/14/2024
	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%		0.0	%

	0		0		0		0		0		0		0		0		0		0		0		0		0			0
07/12/2024
	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%		0.0	%

	0		0		0		0		0		0		0		0		0		0		0		0		0			0
06/14/2024
	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%		0.0	%


Reports Available at sf.citidirect.com	v. 21.09.28	Page 19 of 42	© Copyright 2025 Citigroup

Citigroup Commercial Mortgage Trust 2017-C4

Commercial Mortgage Pass-Through Certificates, Series 2017-C4

APPRAISAL REDUCTION DETAIL

May 14, 2025


			Beginning	Ending	Appraisal	Appraisal	Most Recent	Cumulative
Loan ID	OMCR	Property Name	Scheduled Balance	Scheduled Balance	Reduction Amount	Reduction Date	ASER Amount	ASER Amount

30313319	37	Holiday Inn Express & Suites	6,589,494.58	6,570,204.29	-	05/08/2023	-	8,137.04


Reports Available at sf.citidirect.com	v. 21.09.28	Page 20 of 42	© Copyright 2025 Citigroup

Citigroup Commercial Mortgage Trust 2017-C4

Commercial Mortgage Pass-Through Certificates, Series 2017-C4

HISTORICAL APPRAISAL REDUCTION DETAIL

May 14, 2025


Distribution				Beginning	Ending	Appraisal	Appraisal	Most Recent		Cumulative
Date	Loan ID	OMCR	Property Name	Scheduled Balance Scheduled Balance Reduction Amount Reduction Date				ASER Amount		ASER Amount

5/14/2025	30313319	37	Holiday Inn Express & Suites	6,589,494.58	6,570,204.29	-	05/08/2023	-		8,137.04
4/14/2025	30313319	37	Holiday Inn Express & Suites	6,607,785.94	6,589,494.58	-	05/08/2023	-		8,137.04
3/14/2025	30313319	37	Holiday Inn Express & Suites	6,628,762.33	6,607,785.94	-	05/08/2023	-		8,137.04
2/14/2025	30313319	37	Holiday Inn Express & Suites	6,646,884.51	6,628,762.33	-	05/08/2023	-		8,137.04
1/15/2025	30313319	37	Holiday Inn Express & Suites	6,664,928.61	6,646,884.51	-	05/08/2023	-		8,137.04
12/13/2024	30313319	37	Holiday Inn Express & Suites	6,683,823.90	6,664,928.61	-	05/08/2023	-		8,137.04
11/15/2024	30313319	37	Holiday Inn Express & Suites	6,701,708.85	6,683,823.90	-	05/08/2023	-		8,137.04
10/15/2024	30313319	37	Holiday Inn Express & Suites	6,720,450.76	6,701,708.85	-	05/08/2023	-		8,137.04
9/13/2024	30313319	37	Holiday Inn Express & Suites	6,738,177.90	6,720,450.76	-	05/08/2023	-		8,137.04
8/14/2024	30313319	37	Holiday Inn Express & Suites	6,755,828.67	6,738,177.90	-	05/08/2023	-		8,137.04
7/12/2024	30313319	37	Holiday Inn Express & Suites	6,774,344.90	6,755,828.67	-	05/08/2023	-		8,137.04
6/14/2024	30313319	37	Holiday Inn Express & Suites	6,791,839.84	6,774,344.90	-	05/08/2023	-		8,137.04
5/14/2024	30313319	37	Holiday Inn Express & Suites	6,810,205.90	6,791,839.84	-	05/08/2023	-		8,137.04
4/12/2024	30313319	37	Holiday Inn Express & Suites	6,827,546.34	6,810,205.90	-	05/08/2023	-		8,137.04
3/14/2024	30313319	37	Holiday Inn Express & Suites	6,846,715.21	6,827,546.34	-	05/08/2023	-		8,137.04
2/14/2024	30313319	37	Holiday Inn Express & Suites	6,863,898.35	6,846,715.21	-	05/08/2023	-		8,137.04
1/12/2024	30313319	37	Holiday Inn Express & Suites	6,881,007.46	6,863,898.35	-	05/08/2023	-		8,137.04
12/14/2023	30313319	37	Holiday Inn Express & Suites	6,899,001.69	6,881,007.46	-	05/08/2023	-		8,137.04
11/14/2023	30313319	37	Holiday Inn Express & Suites	6,915,959.56	6,899,001.69	-	05/08/2023	-		8,137.04
10/16/2023	30313319	37	Holiday Inn Express & Suites	6,933,808.04	6,915,959.56	-	05/08/2023	-		8,137.04
9/14/2023	30313319	37	Holiday Inn Express & Suites	6,950,615.95	6,933,808.04	-	05/08/2023	-		8,137.04
8/14/2023	30313319	37	Holiday Inn Express & Suites	6,967,351.44	6,950,615.95	-	05/08/2023	(14,933.88	)	8,137.04
7/14/2023	30313319	37	Holiday Inn Express & Suites	6,984,985.61	6,967,351.44	-	05/08/2023	-		23,070.92
6/14/2023	30313319	37	Holiday Inn Express & Suites	7,001,573.02	6,984,985.61	-	05/08/2023	-		23,070.92
5/12/2023	30313319	37	Holiday Inn Express & Suites	7,019,064.49	7,001,573.02	-	05/08/2023	-		23,070.92
4/14/2023	30313319	37	Holiday Inn Express & Suites	7,035,505.07	7,019,064.49	-	04/08/2022	-		23,070.92
3/14/2023	30313319	37	Holiday Inn Express & Suites	7,054,816.30	7,035,505.07	-	04/08/2022	-		23,070.92
2/14/2023	30313319	37	Holiday Inn Express & Suites	7,071,102.85	7,054,816.30	-	04/08/2022	-		23,070.92
1/13/2023	30313319	37	Holiday Inn Express & Suites	7,087,319.23	7,071,102.85	-	04/08/2022	-		23,070.92
12/14/2022	30313319	37	Holiday Inn Express & Suites	7,104,453.13	7,087,319.23	-	04/08/2022	-		23,070.92
11/15/2022	30313319	37	Holiday Inn Express & Suites	7,120,525.82	7,104,453.13	-	04/08/2022	-		23,070.92
10/17/2022	30313319	37	Holiday Inn Express & Suites	7,137,521.25	7,120,525.82	-	04/08/2022	-		23,070.92
9/14/2022	30313319	37	Holiday Inn Express & Suites	7,153,451.47	7,137,521.25	-	04/08/2022	-		23,070.92


Reports Available at sf.citidirect.com	v. 21.09.28	Page 21 of 42	© Copyright 2025 Citigroup

Citigroup Commercial Mortgage Trust 2017-C4

Commercial Mortgage Pass-Through Certificates, Series 2017-C4

HISTORICAL APPRAISAL REDUCTION DETAIL

May 14, 2025


Distribution				Beginning	Ending	Appraisal	Appraisal	Most Recent	Cumulative
Date	Loan ID	OMCR	Property Name	Scheduled Balance Scheduled Balance Reduction Amount Reduction Date				ASER Amount	ASER Amount

8/12/2022	30313319	37	Holiday Inn Express & Suites	7,169,313.05	7,153,451.47	-	04/08/2022	-	23,070.92
7/14/2022	30313319	37	Holiday Inn Express & Suites	7,186,105.04	7,169,313.05	-	04/08/2022	-	23,070.92
6/14/2022	30313319	37	Holiday Inn Express & Suites	7,201,825.94	7,186,105.04	-	04/08/2022	-	23,070.92
5/13/2022	30313319	37	Holiday Inn Express & Suites	7,218,482.35	7,201,825.94	-	04/08/2022	-	23,070.92
4/14/2022	30313319	37	Holiday Inn Express & Suites	7,234,063.75	7,218,482.35	-	04/08/2022	-	23,070.92
3/14/2022	30313319	37	Holiday Inn Express & Suites	7,252,601.96	7,234,063.75	1,813,150.49	03/08/2022	7,079.35	23,070.92
2/14/2022	30313319	37	Holiday Inn Express & Suites	7,268,036.36	7,252,601.96	1,817,009.09	02/08/2022	7,854.53	15,991.57
1/14/2022	30313319	37	Holiday Inn Express & Suites	7,283,404.26	7,268,036.36	-	01/10/2022	-	8,137.04
12/14/2021	30313282	3	Godfrey Hotel	44,994,086.53	44,994,086.53	-	06/08/2021	-	-
12/14/2021	30313319	37	Holiday Inn Express & Suites	7,299,720.48	7,283,404.26	-	12/08/2021	-	8,137.04
11/15/2021	30313319	37	Holiday Inn Express & Suites	7,314,951.87	7,299,720.48	-	11/08/2021	-	8,137.04
10/15/2021	30313319	37	Holiday Inn Express & Suites	7,331,136.54	7,314,951.87	-	10/08/2020	-	8,137.04
9/14/2021	30313319	37	Holiday Inn Express & Suites	7,346,232.58	7,331,136.54	-	10/08/2020	-	8,137.04
8/13/2021	30313319	37	Holiday Inn Express & Suites	7,361,263.58	7,346,232.58	-	10/08/2020	-	8,137.04
7/14/2021	30313319	37	Holiday Inn Express & Suites	7,377,255.12	7,361,263.58	-	10/08/2020	-	8,137.04
6/14/2021	30313282	3	Godfrey Hotel	44,926,231.75	44,864,286.34	-	06/08/2021	-	-
6/14/2021	30313319	37	Holiday Inn Express & Suites	7,392,152.46	7,377,255.12	-	10/08/2020	-	8,137.04
5/14/2021	30313282	3	Godfrey Hotel	44,994,086.53	44,926,231.75	-	05/10/2021	-	-
5/14/2021	30313319	37	Holiday Inn Express & Suites	7,408,015.20	7,392,152.46	-	10/08/2020	-	8,137.04
4/14/2021	30313319	37	Holiday Inn Express & Suites	7,422,780.01	7,408,015.20	-	10/08/2020	-	8,137.04
3/12/2021	30313319	37	Holiday Inn Express & Suites	7,440,583.53	7,422,780.01	-	10/08/2020	-	8,137.04
2/12/2021	30313319	37	Holiday Inn Express & Suites	7,455,208.02	7,440,583.53	-	10/08/2020	-	8,137.04
1/14/2021	30313319	37	Holiday Inn Express & Suites	7,469,769.50	7,455,208.02	-	10/08/2020	-	8,137.04
12/14/2020	30313319	37	Holiday Inn Express & Suites	7,485,308.57	7,469,769.50	-	10/08/2020	-	8,137.04
11/16/2020	30313319	37	Holiday Inn Express & Suites	7,499,740.37	7,485,308.57	-	10/08/2020	-	8,137.04
10/15/2020	30313319	37	Holiday Inn Express & Suites	7,515,154.46	7,499,740.37	-	10/08/2020	-	8,137.04
9/14/2020	30313319	37	Holiday Inn Express & Suites	7,529,457.67	7,515,154.46	1,882,364.42	09/08/2020	8,137.04	8,137.04


Reports Available at sf.citidirect.com	v. 21.09.28	Page 22 of 42	© Copyright 2025 Citigroup

Citigroup Commercial Mortgage Trust 2017-C4

Commercial Mortgage Pass-Through Certificates, Series 2017-C4

LOAN MODIFICATION DETAIL

May 14, 2025


				Modification	Modification
Loan ID		OMCR	Property Name	Date	Code (4)

30313311		28	Hotel Normandie	10/06/2020	8
30313316		33	Courtyard Brunswick	09/30/2020	8
30313319		37	Holiday Inn Express & Suites	12/22/2022	8
30313285		6	Marriott Lax	02/25/2022	8
30313290		9	50 Varick	05/06/2020	8
Total	Count = 5


Reports Available at sf.citidirect.com	v. 21.09.28	Page 23 of 42	© Copyright 2025 Citigroup

Citigroup Commercial Mortgage Trust 2017-C4

Commercial Mortgage Pass-Through Certificates, Series 2017-C4

HISTORICAL LOAN MODIFICATION DETAIL

May 14, 2025


Distribution				Modification	Modification
Date	Loan ID	OMCR	Property Name	Date	Code (4)

05/14/2025	30313311	28	Hotel Normandie	10/06/2020	8
05/14/2025	30313316	33	Courtyard Brunswick	09/30/2020	8
05/14/2025	30313319	37	Holiday Inn Express & Suites	12/22/2022	8
05/14/2025	30313285	6	Marriott Lax	02/25/2022	8
05/14/2025	30313290	9	50 Varick	05/06/2020	8
04/14/2025	30313311	28	Hotel Normandie	10/06/2020	8
04/14/2025	30313316	33	Courtyard Brunswick	09/30/2020	8
04/14/2025	30313319	37	Holiday Inn Express & Suites	12/22/2022	8
04/14/2025	30313285	6	Marriott Lax	02/25/2022	8
04/14/2025	30313290	9	50 Varick	05/06/2020	8
03/14/2025	30313311	28	Hotel Normandie	10/06/2020	8
03/14/2025	30313316	33	Courtyard Brunswick	09/30/2020	8
03/14/2025	30313319	37	Holiday Inn Express & Suites	12/22/2022	8
03/14/2025	30313285	6	Marriott Lax	02/25/2022	8
03/14/2025	30313290	9	50 Varick	05/06/2020	8
02/14/2025	30313311	28	Hotel Normandie	10/06/2020	8
02/14/2025	30313316	33	Courtyard Brunswick	09/30/2020	8
02/14/2025	30313319	37	Holiday Inn Express & Suites	12/22/2022	8
02/14/2025	30313285	6	Marriott Lax	02/25/2022	8
02/14/2025	30313290	9	50 Varick	05/06/2020	8
01/15/2025	30313311	28	Hotel Normandie	10/06/2020	8
01/15/2025	30313316	33	Courtyard Brunswick	09/30/2020	8
01/15/2025	30313319	37	Holiday Inn Express & Suites	12/22/2022	8
01/15/2025	30313285	6	Marriott Lax	02/25/2022	8
01/15/2025	30313290	9	50 Varick	05/06/2020	8
12/13/2024	30313311	28	Hotel Normandie	10/06/2020	8
12/13/2024	30313316	33	Courtyard Brunswick	09/30/2020	8
12/13/2024	30313319	37	Holiday Inn Express & Suites	12/22/2022	8
12/13/2024	30313285	6	Marriott Lax	02/25/2022	8
12/13/2024	30313290	9	50 Varick	05/06/2020	8
11/15/2024	30313311	28	Hotel Normandie	10/06/2020	8
11/15/2024	30313316	33	Courtyard Brunswick	09/30/2020	8
11/15/2024	30313319	37	Holiday Inn Express & Suites	12/22/2022	8


Reports Available at sf.citidirect.com	v. 21.09.28	Page 24 of 42	© Copyright 2025 Citigroup

Citigroup Commercial Mortgage Trust 2017-C4

Commercial Mortgage Pass-Through Certificates, Series 2017-C4

HISTORICAL LOAN MODIFICATION DETAIL

May 14, 2025


Distribution				Modification	Modification
Date	Loan ID	OMCR	Property Name	Date	Code (4)

11/15/2024	30313285	6	Marriott Lax	02/25/2022	8
11/15/2024	30313290	9	50 Varick	05/06/2020	8
10/15/2024	30313311	28	Hotel Normandie	10/06/2020	8
10/15/2024	30313316	33	Courtyard Brunswick	09/30/2020	8
10/15/2024	30313319	37	Holiday Inn Express & Suites	12/22/2022	8
10/15/2024	30313285	6	Marriott Lax	02/25/2022	8
10/15/2024	30313290	9	50 Varick	05/06/2020	8
09/13/2024	30313311	28	Hotel Normandie	10/06/2020	8
09/13/2024	30313316	33	Courtyard Brunswick	09/30/2020	8
09/13/2024	30313319	37	Holiday Inn Express & Suites	12/22/2022	8
09/13/2024	30313285	6	Marriott Lax	02/25/2022	8
09/13/2024	30313290	9	50 Varick	05/06/2020	8
08/14/2024	30313311	28	Hotel Normandie	10/06/2020	8
08/14/2024	30313316	33	Courtyard Brunswick	09/30/2020	8
08/14/2024	30313319	37	Holiday Inn Express & Suites	12/22/2022	8
08/14/2024	30313285	6	Marriott Lax	02/25/2022	8
08/14/2024	30313290	9	50 Varick	05/06/2020	8
07/12/2024	30313311	28	Hotel Normandie	10/06/2020	8
07/12/2024	30313316	33	Courtyard Brunswick	09/30/2020	8
07/12/2024	30313319	37	Holiday Inn Express & Suites	12/22/2022	8
07/12/2024	30313285	6	Marriott Lax	02/25/2022	8
07/12/2024	30313290	9	50 Varick	05/06/2020	8
06/14/2024	30313311	28	Hotel Normandie	10/06/2020	8
06/14/2024	30313316	33	Courtyard Brunswick	09/30/2020	8
06/14/2024	30313319	37	Holiday Inn Express & Suites	12/22/2022	8
06/14/2024	30313285	6	Marriott Lax	02/25/2022	8
06/14/2024	30313290	9	50 Varick	05/06/2020	8
05/14/2024	30313311	28	Hotel Normandie	10/06/2020	8
05/14/2024	30313316	33	Courtyard Brunswick	09/30/2020	8
05/14/2024	30313319	37	Holiday Inn Express & Suites	12/22/2022	8
05/14/2024	30313285	6	Marriott Lax	02/25/2022	8
05/14/2024	30313290	9	50 Varick	05/06/2020	8
04/12/2024	30313311	28	Hotel Normandie	10/06/2020	8


Reports Available at sf.citidirect.com	v. 21.09.28	Page 25 of 42	© Copyright 2025 Citigroup

Citigroup Commercial Mortgage Trust 2017-C4

Commercial Mortgage Pass-Through Certificates, Series 2017-C4

HISTORICAL LOAN MODIFICATION DETAIL

May 14, 2025


Distribution				Modification	Modification
Date	Loan ID	OMCR	Property Name	Date	Code (4)

04/12/2024	30313316	33	Courtyard Brunswick	09/30/2020	8
04/12/2024	30313319	37	Holiday Inn Express & Suites	12/22/2022	8
04/12/2024	30313285	6	Marriott Lax	02/25/2022	8
04/12/2024	30313290	9	50 Varick	05/06/2020	8
03/14/2024	30313311	28	Hotel Normandie	10/06/2020	8
03/14/2024	30313316	33	Courtyard Brunswick	09/30/2020	8
03/14/2024	30313319	37	Holiday Inn Express & Suites	12/22/2022	8
03/14/2024	30313285	6	Marriott Lax	02/25/2022	8
03/14/2024	30313290	9	50 Varick	05/06/2020	8
02/14/2024	30313311	28	Hotel Normandie	10/06/2020	8
02/14/2024	30313316	33	Courtyard Brunswick	09/30/2020	8
02/14/2024	30313319	37	Holiday Inn Express & Suites	12/22/2022	8
02/14/2024	30313285	6	Marriott Lax	02/25/2022	8
02/14/2024	30313290	9	50 Varick	05/06/2020	8
01/12/2024	30313311	28	Hotel Normandie	10/06/2020	8
01/12/2024	30313316	33	Courtyard Brunswick	09/30/2020	8
01/12/2024	30313319	37	Holiday Inn Express & Suites	12/22/2022	8
01/12/2024	30313285	6	Marriott Lax	02/25/2022	8
01/12/2024	30313290	9	50 Varick	05/06/2020	8
12/14/2023	30313311	28	Hotel Normandie	10/06/2020	8
12/14/2023	30313316	33	Courtyard Brunswick	09/30/2020	8
12/14/2023	30313319	37	Holiday Inn Express & Suites	12/22/2022	8
12/14/2023	30313285	6	Marriott Lax	02/25/2022	8
12/14/2023	30313290	9	50 Varick	05/06/2020	8
11/14/2023	30313311	28	Hotel Normandie	10/06/2020	8
11/14/2023	30313316	33	Courtyard Brunswick	09/30/2020	8
11/14/2023	30313319	37	Holiday Inn Express & Suites	12/22/2022	8
11/14/2023	30313285	6	Marriott Lax	02/25/2022	8
11/14/2023	30313290	9	50 Varick	05/06/2020	8
10/16/2023	30313311	28	Hotel Normandie	10/06/2020	8
10/16/2023	30313316	33	Courtyard Brunswick	09/30/2020	8
10/16/2023	30313319	37	Holiday Inn Express & Suites	12/22/2022	8
10/16/2023	30313285	6	Marriott Lax	02/25/2022	8


Reports Available at sf.citidirect.com	v. 21.09.28	Page 26 of 42	© Copyright 2025 Citigroup

Citigroup Commercial Mortgage Trust 2017-C4

Commercial Mortgage Pass-Through Certificates, Series 2017-C4

HISTORICAL LOAN MODIFICATION DETAIL

May 14, 2025


Distribution				Modification	Modification
Date	Loan ID	OMCR	Property Name	Date	Code (4)

10/16/2023	30313290	9	50 Varick	05/06/2020	8
09/14/2023	30313311	28	Hotel Normandie	10/06/2020	8
09/14/2023	30313316	33	Courtyard Brunswick	09/30/2020	8
09/14/2023	30313319	37	Holiday Inn Express & Suites	12/22/2022	8
09/14/2023	30313285	6	Marriott Lax	02/25/2022	8
09/14/2023	30313290	9	50 Varick	05/06/2020	8
08/14/2023	30313311	28	Hotel Normandie	10/06/2020	8
08/14/2023	30313316	33	Courtyard Brunswick	09/30/2020	8
08/14/2023	30313319	37	Holiday Inn Express & Suites	12/22/2022	8
08/14/2023	30313285	6	Marriott Lax	02/25/2022	8
08/14/2023	30313290	9	50 Varick	05/06/2020	8
07/14/2023	30313311	28	Hotel Normandie	10/06/2020	8
07/14/2023	30313316	33	Courtyard Brunswick	09/30/2020	8
07/14/2023	30313319	37	Holiday Inn Express & Suites	12/22/2022	8
07/14/2023	30313285	6	Marriott Lax	02/25/2022	8
07/14/2023	30313290	9	50 Varick	05/06/2020	8
06/14/2023	30313311	28	Hotel Normandie	10/06/2020	8
06/14/2023	30313316	33	Courtyard Brunswick	09/30/2020	8
06/14/2023	30313319	37	Holiday Inn Express & Suites	12/22/2022	8
06/14/2023	30313285	6	Marriott Lax	02/25/2022	8
06/14/2023	30313290	9	50 Varick	05/06/2020	8
05/12/2023	30313311	28	Hotel Normandie	10/06/2020	8
05/12/2023	30313316	33	Courtyard Brunswick	09/30/2020	8
05/12/2023	30313319	37	Holiday Inn Express & Suites	12/22/2022	8
05/12/2023	30313285	6	Marriott Lax	02/25/2022	8
05/12/2023	30313290	9	50 Varick	05/06/2020	8
04/14/2023	30313311	28	Hotel Normandie	10/06/2020	8
04/14/2023	30313316	33	Courtyard Brunswick	09/30/2020	8
04/14/2023	30313285	6	Marriott Lax	02/25/2022	8
04/14/2023	30313290	9	50 Varick	05/06/2020	8
03/14/2023	30313311	28	Hotel Normandie	10/06/2020	8
03/14/2023	30313316	33	Courtyard Brunswick	09/30/2020	8
03/14/2023	30313285	6	Marriott Lax	02/25/2022	8


Reports Available at sf.citidirect.com	v. 21.09.28	Page 27 of 42	© Copyright 2025 Citigroup

Citigroup Commercial Mortgage Trust 2017-C4

Commercial Mortgage Pass-Through Certificates, Series 2017-C4

HISTORICAL LOAN MODIFICATION DETAIL

May 14, 2025


Distribution				Modification	Modification
Date	Loan ID	OMCR	Property Name	Date	Code (4)

03/14/2023	30313290	9	50 Varick	05/06/2020	8
02/14/2023	30313311	28	Hotel Normandie	10/06/2020	8
02/14/2023	30313316	33	Courtyard Brunswick	09/30/2020	8
02/14/2023	30313285	6	Marriott Lax	02/25/2022	8
02/14/2023	30313290	9	50 Varick	05/06/2020	8
01/13/2023	30313311	28	Hotel Normandie	10/06/2020	8
01/13/2023	30313316	33	Courtyard Brunswick	09/30/2020	8
01/13/2023	30313285	6	Marriott Lax	02/25/2022	8
01/13/2023	30313290	9	50 Varick	05/06/2020	8
12/14/2022	30313311	28	Hotel Normandie	10/06/2020	8
12/14/2022	30313316	33	Courtyard Brunswick	09/30/2020	8
12/14/2022	30313285	6	Marriott Lax	02/25/2022	8
12/14/2022	30313290	9	50 Varick	05/06/2020	8
11/15/2022	30313311	28	Hotel Normandie	10/06/2020	8
11/15/2022	30313316	33	Courtyard Brunswick	09/30/2020	8
11/15/2022	30313285	6	Marriott Lax	02/25/2022	8
11/15/2022	30313290	9	50 Varick	05/06/2020	8
10/17/2022	30313311	28	Hotel Normandie	10/06/2020	8
10/17/2022	30313316	33	Courtyard Brunswick	09/30/2020	8
10/17/2022	30313285	6	Marriott Lax	02/25/2022	8
10/17/2022	30313290	9	50 Varick	05/06/2020	8
09/14/2022	30313311	28	Hotel Normandie	10/06/2020	8
09/14/2022	30313316	33	Courtyard Brunswick	09/30/2020	8
09/14/2022	30313285	6	Marriott Lax	02/25/2022	8
09/14/2022	30313290	9	50 Varick	05/06/2020	8
08/12/2022	30313311	28	Hotel Normandie	10/06/2020	8
08/12/2022	30313282	3	Godfrey Hotel	05/06/2021	8
08/12/2022	30313316	33	Courtyard Brunswick	09/30/2020	8
08/12/2022	30313285	6	Marriott Lax	02/25/2022	8
08/12/2022	30313290	9	50 Varick	05/06/2020	8
07/14/2022	30313311	28	Hotel Normandie	10/06/2020	8
07/14/2022	30313282	3	Godfrey Hotel	05/06/2021	8
07/14/2022	30313316	33	Courtyard Brunswick	09/30/2020	8


Reports Available at sf.citidirect.com	v. 21.09.28	Page 28 of 42	© Copyright 2025 Citigroup

Citigroup Commercial Mortgage Trust 2017-C4

Commercial Mortgage Pass-Through Certificates, Series 2017-C4

HISTORICAL LOAN MODIFICATION DETAIL

May 14, 2025


Distribution				Modification	Modification
Date	Loan ID	OMCR	Property Name	Date	Code (4)

07/14/2022	30313285	6	Marriott Lax	02/25/2022	8
07/14/2022	30313290	9	50 Varick	05/06/2020	8
06/14/2022	30313311	28	Hotel Normandie	10/06/2020	8
06/14/2022	30313282	3	Godfrey Hotel	05/06/2021	8
06/14/2022	30313316	33	Courtyard Brunswick	09/30/2020	8
06/14/2022	30313285	6	Marriott Lax	02/25/2022	8
06/14/2022	30313290	9	50 Varick	05/06/2020	8
05/13/2022	30313311	28	Hotel Normandie	10/06/2020	8
05/13/2022	30313282	3	Godfrey Hotel	05/06/2021	8
05/13/2022	30313316	33	Courtyard Brunswick	09/30/2020	8
05/13/2022	30313285	6	Marriott Lax	02/25/2022	8
05/13/2022	30313290	9	50 Varick	05/06/2020	8
04/14/2022	30313311	28	Hotel Normandie	10/06/2020	8
04/14/2022	30313282	3	Godfrey Hotel	05/06/2021	8
04/14/2022	30313316	33	Courtyard Brunswick	09/30/2020	8
04/14/2022	30313290	9	50 Varick	05/06/2020	8
03/14/2022	30313311	28	Hotel Normandie	10/06/2020	8
03/14/2022	30313282	3	Godfrey Hotel	05/06/2021	8
03/14/2022	30313316	33	Courtyard Brunswick	09/30/2020	8
03/14/2022	30313290	9	50 Varick	05/06/2020	8
02/14/2022	30313311	28	Hotel Normandie	10/06/2020	8
02/14/2022	30313282	3	Godfrey Hotel	05/06/2021	8
02/14/2022	30313316	33	Courtyard Brunswick	09/30/2020	8
02/14/2022	30313290	9	50 Varick	05/06/2020	8
01/14/2022	30313311	28	Hotel Normandie	10/06/2020	8
01/14/2022	30313282	3	Godfrey Hotel	05/06/2021	8
01/14/2022	30313316	33	Courtyard Brunswick	09/30/2020	8
01/14/2022	30313290	9	50 Varick	05/06/2020	8
12/14/2021	30313311	28	Hotel Normandie	10/06/2020	8
12/14/2021	30313282	3	Godfrey Hotel	05/06/2021	8
12/14/2021	30313316	33	Courtyard Brunswick	09/30/2020	8
12/14/2021	30313290	9	50 Varick	05/06/2020	8
11/15/2021	30313311	28	Hotel Normandie	10/06/2020	8


Reports Available at sf.citidirect.com	v. 21.09.28	Page 29 of 42	© Copyright 2025 Citigroup

Citigroup Commercial Mortgage Trust 2017-C4

Commercial Mortgage Pass-Through Certificates, Series 2017-C4

HISTORICAL LOAN MODIFICATION DETAIL

May 14, 2025


Distribution				Modification	Modification
Date	Loan ID	OMCR	Property Name	Date	Code (4)

11/15/2021	30313282	3	Godfrey Hotel	05/06/2021	8
11/15/2021	30313316	33	Courtyard Brunswick	09/30/2020	8
11/15/2021	30313290	9	50 Varick	05/06/2020	8
10/15/2021	30313311	28	Hotel Normandie	10/06/2020	8
10/15/2021	30313282	3	Godfrey Hotel	05/06/2021	8
10/15/2021	30313316	33	Courtyard Brunswick	09/30/2020	8
10/15/2021	30313290	9	50 Varick	05/06/2020	8
09/14/2021	30313311	28	Hotel Normandie	10/06/2020	8
09/14/2021	30313282	3	Godfrey Hotel	05/06/2021	8
09/14/2021	30313316	33	Courtyard Brunswick	09/30/2020	8
09/14/2021	30313290	9	50 Varick	05/06/2020	8
08/13/2021	30313311	28	Hotel Normandie	10/06/2020	8
08/13/2021	30313282	3	Godfrey Hotel	05/06/2021	8
08/13/2021	30313316	33	Courtyard Brunswick	09/30/2020	8
08/13/2021	30313290	9	50 Varick	05/06/2020	8
07/14/2021	30313311	28	Hotel Normandie	10/06/2020	8
07/14/2021	30313282	3	Godfrey Hotel	05/19/2021	8
07/14/2021	30313290	9	50 Varick	05/06/2020	8
06/14/2021	30313311	28	Hotel Normandie	10/06/2020	8
06/14/2021	30313282	3	Godfrey Hotel	05/06/2020	8
06/14/2021	30313290	9	50 Varick	05/06/2020	8
05/14/2021	30313311	28	Hotel Normandie	10/06/2020	8
05/14/2021	30313282	3	Godfrey Hotel	05/06/2020	8
05/14/2021	30313290	9	50 Varick	05/06/2020	8
04/14/2021	30313311	28	Hotel Normandie	10/06/2020	8
04/14/2021	30313282	3	Godfrey Hotel	05/06/2020	8
04/14/2021	30313290	9	50 Varick	05/06/2020	8
03/12/2021	30313311	28	Hotel Normandie	10/06/2020	8
03/12/2021	30313282	3	Godfrey Hotel	05/06/2020	8
03/12/2021	30313290	9	50 Varick	05/06/2020	8
02/12/2021	30313311	28	Hotel Normandie	10/06/2020	8
02/12/2021	30313282	3	Godfrey Hotel	05/06/2020	8
02/12/2021	30313290	9	50 Varick	05/06/2020	8


Reports Available at sf.citidirect.com	v. 21.09.28	Page 30 of 42	© Copyright 2025 Citigroup

Citigroup Commercial Mortgage Trust 2017-C4

Commercial Mortgage Pass-Through Certificates, Series 2017-C4

HISTORICAL LOAN MODIFICATION DETAIL

May 14, 2025


Distribution				Modification	Modification
Date	Loan ID	OMCR	Property Name	Date	Code (4)

01/14/2021	30313311	28	Hotel Normandie	10/06/2020	8
01/14/2021	30313282	3	Godfrey Hotel	05/06/2020	8
01/14/2021	30313290	9	50 Varick	05/06/2020	8
12/14/2020	30313311	28	Hotel Normandie	10/06/2020	8
12/14/2020	30313282	3	Godfrey Hotel	05/06/2020	8
12/14/2020	30313290	9	50 Varick	05/06/2020	8
11/16/2020	30313311	28	Hotel Normandie	10/06/2020	8
11/16/2020	30313282	3	Godfrey Hotel	05/06/2020	8
11/16/2020	30313290	9	50 Varick	05/06/2020	8
10/15/2020	30313311	28	Hotel Normandie	04/06/2020	8
10/15/2020	30313282	3	Godfrey Hotel	05/06/2020	8
10/15/2020	30313290	9	50 Varick	05/06/2020	8
09/14/2020	30313311	28	Hotel Normandie	04/06/2020	8
09/14/2020	30313282	3	Godfrey Hotel	05/06/2020	8
09/14/2020	30313290	9	50 Varick	05/06/2020	8
08/14/2020	30313311	28	Hotel Normandie	04/06/2020	8
08/14/2020	30313282	3	Godfrey Hotel	05/06/2020	8
08/14/2020	30313290	9	50 Varick	05/06/2020	8
07/14/2020	30313311	28	Hotel Normandie	04/06/2020	8
07/14/2020	30313282	3	Godfrey Hotel	05/06/2020	8
07/14/2020	30313290	9	50 Varick	05/06/2020	8
06/12/2020	30313311	28	Hotel Normandie	04/06/2020	8
06/12/2020	30313290	9	50 Varick	05/06/2020	8
05/14/2020	30313311	28	Hotel Normandie	04/06/2020	8


Reports Available at sf.citidirect.com	v. 21.09.28	Page 31 of 42	© Copyright 2025 Citigroup

Citigroup Commercial Mortgage Trust 2017-C4

Commercial Mortgage Pass-Through Certificates, Series 2017-C4

SPECIALLY SERVICED LOAN DETAIL


	May 14, 2025




Most Recent	Most Recent
Servicer	Master Servicer


			Special Servicing	Ending	Ending	Most	Most Recent
		Workout	Fee Amount	Scheduled	Actual	Recent	Valuation	Special
Loan ID	OMCR	Strategy (3)	Plus Adjustments	Balance	Balance	Value	Date	Transfer Date	Return Date

No Loans Specially Serviced to Report.


Reports Available at sf.citidirect.com	v. 21.09.28	Page 32 of 42	© Copyright 2025 Citigroup


Citigroup Commercial Mortgage Trust 2017-C4
Commercial Mortgage Pass-Through Certificates, Series 2017-C4											May 14, 2025

HISTORICAL SPECIALLY SERVICED LOANS


				Special Servicing		Ending	Ending	Most	Most Recent	Most Recent	Most Recent
Distribution			Workout	Fee Amount		Scheduled	Actual	Recent	Valuation	Special Servicer Master Servicer
Date	Loan ID	OMCR	Strategy (3)	Plus Adjustments		Balance	Balance	Value	Date	Transfer Date	Return Date

12/14/2021	30313282	3	8	3,500.00		44,994,086.53	44,994,086.53	71,000,000.00	11/01/2020	09/09/2020	11/04/2021
11/15/2021	30313282	3	1	(63,791.51	)	44,994,086.53	44,994,086.53	71,000,000.00	11/01/2020	09/09/2020
10/15/2021	30313282	3	1	9,373.77		44,994,086.53	44,994,086.53	71,000,000.00	11/01/2020	09/09/2020
09/14/2021	30313282	3	1	9,686.23		44,994,086.53	44,994,086.53	71,000,000.00	11/01/2020	09/09/2020
08/13/2021	30313282	3	1	9,686.23		44,994,086.53	44,994,086.53	71,000,000.00	11/01/2020	09/09/2020
07/14/2021	30313282	3	1	(312.46	)	44,994,086.53	44,994,086.53	71,000,000.00	11/01/2020	09/09/2020
06/14/2021	30313282	3	1	9,671.62		44,864,286.34	45,383,006.43	71,000,000.00	11/01/2020	09/09/2020
05/14/2021	30313282	3	1	9,373.77		44,926,231.75	45,383,006.43	71,000,000.00	11/01/2020	09/09/2020
04/14/2021	30313282	3	1	9,699.44		44,994,086.53	45,383,006.43	101,400,000.00	03/28/2017	09/09/2020
03/12/2021	30313282	3	1	8,776.29		45,055,479.91	45,567,645.58	101,400,000.00	03/28/2017	09/09/2020
02/12/2021	30313282	3	1	9,729.69		45,135,188.72	45,567,645.58	101,400,000.00	03/28/2017	09/09/2020
01/14/2021	30313282	3	1	9,742.72		45,195,982.00	45,567,645.58	101,400,000.00	03/28/2017	09/09/2020
12/14/2020	30313282	3	1	9,442.29		45,256,516.73	45,567,645.58	101,400,000.00	03/28/2017	09/09/2020
11/16/2020	30313282	3	1	9,769.95		45,323,011.95	45,567,645.58	101,400,000.00	03/28/2017	09/09/2020
10/15/2020	30313282	3	1	6,943.59		45,383,006.43	45,567,645.58	101,400,000.00	03/28/2017	09/09/2020
07/14/2022	30313285	6	8	(16,165.78	)	36,723,512.64	36,784,274.46	182,000,000.00	04/26/2021	12/10/2020	06/30/2022
06/14/2022	30313285	6	1	7,930.74		36,784,274.46	36,899,836.72	182,000,000.00	04/26/2021	12/10/2020
05/13/2022	30313285	6	1	7,687.47		36,839,567.38	36,899,836.72	182,000,000.00	04/26/2021	12/10/2020
04/14/2022	30313285	6	1	(107,897.61	)	36,899,836.72	36,899,836.72	182,000,000.00	04/26/2021	12/10/2020
03/14/2022	30313285	6	1	7,199.28		36,954,622.97	37,961,804.09	300,800,000.00	02/01/2018	12/10/2020
02/14/2022	30313285	6	1	7,982.31		37,024,878.60	37,961,804.09	300,800,000.00	02/01/2018	12/10/2020
01/14/2022	30313285	6	1	7,993.93		37,079,116.61	37,961,804.09	300,800,000.00	02/01/2018	12/10/2020
12/14/2021	30313285	6	1	7,748.36		37,133,116.82	37,961,804.09	300,800,000.00	02/01/2018	12/10/2020
11/15/2021	30313285	6	1	8,018.16		37,192,140.45	37,961,804.09	300,800,000.00	02/01/2018	12/10/2020
10/15/2021	30313285	6	1	7,771.71		37,245,645.11	37,961,804.09	300,800,000.00	02/01/2018	12/10/2020
09/14/2021	30313285	6	1	8,042.18		37,304,191.22	37,961,804.09	300,800,000.00	02/01/2018	12/10/2020
08/13/2021	30313285	6	1	8,053.54		37,357,204.61	37,961,804.09	300,800,000.00	02/01/2018	12/10/2020
07/14/2021	30313285	6	1	7,805.80		37,409,985.57	37,961,804.09	300,800,000.00	02/01/2018	12/10/2020
06/14/2021	30313285	6	1	8,077.25		37,467,834.29	37,961,804.09	300,800,000.00	02/01/2018	12/10/2020
05/14/2021	30313285	6	13	7,828.65		37,520,130.20	37,961,804.09	300,800,000.00	02/01/2018	12/10/2020
04/14/2021	30313285	6	13	8,100.76		37,577,511.51	37,961,804.09	300,800,000.00	02/01/2018	12/10/2020
03/12/2021	30313285	6	13	7,329.95		37,629,326.55	37,961,804.09	300,800,000.00	02/01/2018	12/10/2020
Reports Available at sf.citidirect.com			v. 21.09.28			Page 33 of 42				© Copyright 2025 Citigroup


Citigroup Commercial Mortgage Trust 2017-C4
Commercial Mortgage Pass-Through Certificates, Series 2017-C4											May 14, 2025

HISTORICAL SPECIALLY SERVICED LOANS


				Special Servicing		Ending	Ending	Most	Most Recent	Most Recent	Most Recent
Distribution			Workout	Fee Amount		Scheduled	Actual	Recent	Valuation	Special Servicer Master Servicer
Date	Loan ID	OMCR	Strategy (3)	Plus Adjustments		Balance	Balance	Value	Date	Transfer Date	Return Date

02/12/2021	30313285	6	13	8,126.35		37,696,909.14	37,961,804.09	300,800,000.00	02/01/2018	12/10/2020
01/14/2021	30313285	6	1	5,774.89		37,748,200.69	37,961,804.09	300,800,000.00	02/01/2018	12/10/2020
12/14/2020	30313301	18	6	(7,347.57	)	-	22,750,000.00	44,000,000.00	06/01/2017	09/10/2020
11/16/2020	30313301	18	6	4,897.57		22,750,000.00	22,750,000.00	44,000,000.00	06/01/2017	09/10/2020
10/15/2020	30313301	18	6	2,450.00		22,750,000.00	22,750,000.00	44,000,000.00	06/01/2017	09/10/2020
12/14/2022	30313308	25	8	(3,500.00	)	-	-	21,300,000.00	07/19/2017	09/21/2021
11/15/2022	30313308	25	6	3,500.00		14,346,175.77	14,346,175.77	21,300,000.00	07/19/2017	09/21/2021
10/17/2022	30313308	25	6	(3,500.00	)	14,368,299.60	14,368,299.60	21,300,000.00	07/19/2017	09/21/2021
09/14/2022	30313308	25	6	-		14,392,286.85	14,392,286.85	21,300,000.00	07/19/2017	09/21/2021
08/12/2022	30313308	25	13	-		14,414,216.34	14,414,216.34	21,300,000.00	07/19/2017	09/21/2021
07/14/2022	30313308	25	13	-		14,436,053.41	14,436,053.41	21,300,000.00	07/19/2017	09/21/2021
06/14/2022	30313308	25	13	(3,500.00	)	14,459,764.29	14,459,764.29	21,300,000.00	07/19/2017	09/21/2021
05/13/2022	30313308	25	13	3,500.00		14,481,409.40	14,504,935.26	21,300,000.00	07/19/2017	09/21/2021
04/14/2022	30313308	25	13	3,500.00		14,504,935.26	14,526,389.99	21,300,000.00	07/19/2017	09/21/2021
03/14/2022	30313308	25	13	-		14,526,389.99	14,526,389.99	21,300,000.00	07/19/2017	09/21/2021
02/14/2022	30313308	25	13	(10,500.00	)	14,553,690.13	14,553,690.13	21,300,000.00	07/19/2017	09/21/2021
01/14/2022	30313308	25	13	3,500.00		14,574,939.38	14,574,939.38	21,300,000.00	07/19/2017	09/21/2021
12/14/2021	30313308	25	13	3,500.00		14,596,099.08	14,619,157.11	21,300,000.00	07/19/2017	09/21/2021
11/15/2021	30313308	25	13	3,500.00		14,619,157.11	14,619,157.11	21,300,000.00	07/19/2017	09/21/2021
10/15/2021	30313308	25	13	3,500.00		14,640,130.45	14,640,130.45	21,300,000.00	07/19/2017	09/21/2021
08/14/2024	30313312	29	8	(20,322.58	)	11,825,000.00	11,825,000.00	21,600,000.00	10/01/2017	12/07/2023	07/26/2024
07/12/2024	30313312	29	98	3,500.00		11,825,000.00	11,825,000.00	21,600,000.00	10/01/2017	12/07/2023
06/14/2024	30313312	29	98	3,500.00		11,825,000.00	11,825,000.00	21,600,000.00	10/01/2017	12/07/2023
05/14/2024	30313312	29	98	3,500.00		11,825,000.00	11,825,000.00	21,600,000.00	10/01/2017	12/07/2023
04/12/2024	30313312	29	98	3,500.00		11,825,000.00	11,825,000.00	21,600,000.00	10/01/2017	12/07/2023
03/14/2024	30313312	29	13	3,500.00		11,825,000.00	11,825,000.00	21,600,000.00	10/01/2017	12/07/2023
02/14/2024	30313312	29	13	3,500.00		11,825,000.00	11,825,000.00	21,600,000.00	10/01/2017	12/07/2023
01/12/2024	30313312	29	13	2,822.58		11,825,000.00	11,825,000.00	21,600,000.00	10/01/2017	12/07/2023
02/14/2024	30313319	37	8	-		6,846,715.21	6,846,715.21	12,000,000.00	02/22/2023	05/27/2020	12/29/2023
01/12/2024	30313319	37	3	3,161.29		6,863,898.35	6,863,898.35	12,000,000.00	02/22/2023	05/27/2020
12/14/2023	30313319	37	3	3,500.00		6,881,007.46	6,881,007.46	12,000,000.00	02/22/2023	05/27/2020
11/14/2023	30313319	37	3	3,500.00		6,899,001.69	6,915,959.56	12,000,000.00	02/22/2023	05/27/2020
Reports Available at sf.citidirect.com			v. 21.09.28			Page 34 of 42				© Copyright 2025 Citigroup


Citigroup Commercial Mortgage Trust 2017-C4
Commercial Mortgage Pass-Through Certificates, Series 2017-C4										May 14, 2025

HISTORICAL SPECIALLY SERVICED LOANS


				Special Servicing	Ending	Ending	Most	Most Recent	Most Recent	Most Recent
Distribution			Workout	Fee Amount	Scheduled	Actual	Recent	Valuation	Special Servicer Master Servicer
Date	Loan ID	OMCR	Strategy (3)	Plus Adjustments	Balance	Balance	Value	Date	Transfer Date	Return Date

10/16/2023	30313319	37	3	3,500.00	6,915,959.56	6,933,808.04	12,000,000.00	02/22/2023	05/27/2020
09/14/2023	30313319	37	3	3,500.00	6,933,808.04	6,933,808.04	12,000,000.00	02/22/2023	05/27/2020
08/14/2023	30313319	37	3	3,500.00	6,950,615.95	6,950,615.95	12,000,000.00	02/22/2023	05/27/2020
07/14/2023	30313319	37	3	3,500.00	6,967,351.44	7,361,263.58	12,000,000.00	02/22/2023	05/27/2020
06/14/2023	30313319	37	3	3,500.00	6,984,985.61	7,361,263.58	12,000,000.00	02/22/2023	05/27/2020
05/12/2023	30313319	37	3	3,500.00	7,001,573.02	7,361,263.58	12,000,000.00	02/22/2023	05/27/2020
04/14/2023	30313319	37	3	3,500.00	7,019,064.49	7,602,141.74	12,000,000.00	02/22/2023	05/27/2020
03/14/2023	30313319	37	3	3,500.00	7,035,505.07	7,602,141.74	11,500,000.00	02/05/2021	05/27/2020
02/14/2023	30313319	37	3	3,500.00	7,054,816.30	7,602,141.74	11,500,000.00	02/05/2021	05/27/2020
01/13/2023	30313319	37	3	3,500.00	7,071,102.85	7,602,141.74	11,500,000.00	02/05/2021	05/27/2020
12/14/2022	30313319	37	3	3,500.00	7,087,319.23	7,602,141.74	11,500,000.00	02/05/2021	05/27/2020
11/15/2022	30313319	37	3	3,500.00	7,104,453.13	7,602,141.74	11,500,000.00	02/05/2021	05/27/2020
10/17/2022	30313319	37	3	3,500.00	7,120,525.82	7,602,141.74	11,500,000.00	02/05/2021	05/27/2020
09/14/2022	30313319	37	3	3,500.00	7,137,521.25	7,602,141.74	11,500,000.00	02/05/2021	05/27/2020
08/12/2022	30313319	37	3	3,500.00	7,153,451.47	7,602,141.74	11,500,000.00	02/05/2021	05/27/2020
07/14/2022	30313319	37	3	3,500.00	7,169,313.05	7,602,141.74	11,500,000.00	02/05/2021	05/27/2020
06/14/2022	30313319	37	3	3,500.00	7,186,105.04	7,602,141.74	11,500,000.00	02/05/2021	05/27/2020
05/13/2022	30313319	37	3	3,500.00	7,201,825.94	7,602,141.74	11,500,000.00	02/05/2021	05/27/2020
04/14/2022	30313319	37	3	3,500.00	7,218,482.35	7,602,141.74	11,500,000.00	02/05/2021	05/27/2020
03/14/2022	30313319	37	3	3,500.00	7,234,063.75	7,602,141.74	11,500,000.00	02/05/2021	05/27/2020
02/14/2022	30313319	37	3	3,500.00	7,252,601.96	7,602,141.74	11,500,000.00	02/05/2021	05/27/2020
01/14/2022	30313319	37	3	3,500.00	7,268,036.36	7,602,141.74	11,500,000.00	02/05/2021	05/27/2020
12/14/2021	30313319	37	3	3,500.00	7,283,404.26	7,602,141.74	11,500,000.00	02/05/2021	05/27/2020
11/15/2021	30313319	37	3	3,500.00	7,299,720.48	7,602,141.74	11,500,000.00	02/05/2021	05/27/2020
10/15/2021	30313319	37	3	3,500.00	7,314,951.87	7,602,141.74	11,500,000.00	02/05/2021	05/27/2020
09/14/2021	30313319	37	3	3,500.00	7,331,136.54	7,602,141.74	11,000,000.00	07/27/2020	05/27/2020
08/13/2021	30313319	37	3	3,500.00	7,346,232.58	7,602,141.74	11,000,000.00	07/27/2020	05/27/2020
07/14/2021	30313319	37	3	3,500.00	7,361,263.58	7,602,141.74	11,000,000.00	07/27/2020	05/27/2020
06/14/2021	30313319	37	3	3,500.00	7,377,255.12	7,602,141.74	11,000,000.00	07/27/2020	05/27/2020
05/14/2021	30313319	37	3	3,500.00	7,392,152.46	7,602,141.74	11,000,000.00	07/27/2020	05/27/2020
04/14/2021	30313319	37	3	3,500.00	7,408,015.20	7,602,141.74	11,000,000.00	07/27/2020	05/27/2020
03/12/2021	30313319	37	3	3,500.00	7,422,780.01	7,602,141.74	11,000,000.00	07/27/2020	05/27/2020
Reports Available at sf.citidirect.com			v. 21.09.28		Page 35 of 42				© Copyright 2025 Citigroup


Citigroup Commercial Mortgage Trust 2017-C4
Commercial Mortgage Pass-Through Certificates, Series 2017-C4										May 14, 2025

HISTORICAL SPECIALLY SERVICED LOANS


				Special Servicing	Ending	Ending	Most	Most Recent	Most Recent	Most Recent
Distribution			Workout	Fee Amount	Scheduled	Actual	Recent	Valuation	Special Servicer	Master Servicer
Date	Loan ID	OMCR	Strategy (3)	Plus Adjustments	Balance	Balance	Value	Date	Transfer Date	Return Date

02/12/2021	30313319	37	3	3,500.00	7,440,583.53	7,602,141.74	11,000,000.00	07/27/2020	05/27/2020
01/14/2021	30313319	37	3	3,500.00	7,455,208.02	7,602,141.74	11,000,000.00	07/27/2020	05/27/2020
12/14/2020	30313319	37	3	3,500.00	7,469,769.50	7,602,141.74	11,000,000.00	07/27/2020	05/27/2020
11/16/2020	30313319	37	3	3,500.00	7,485,308.57	7,602,141.74	11,000,000.00	07/27/2020	05/27/2020
10/15/2020	30313319	37	3	3,500.00	7,499,740.37	7,602,141.74	11,000,000.00	07/27/2020	05/27/2020
09/14/2020	30313319	37	13	3,500.00	7,515,154.46	7,602,141.74	13,000,000.00	07/19/2017	05/27/2020
08/14/2020	30313319	37	13	3,500.00	7,529,457.67	7,602,141.74	13,000,000.00	07/19/2017	05/27/2020
07/14/2020	30313319	37	13	3,500.00	7,543,699.25	7,602,141.74	13,000,000.00	07/19/2017	05/27/2020
06/12/2020	30313319	37	98	564.52	7,558,930.03	7,602,141.74	13,000,000.00	07/19/2017	05/27/2020




Reports Available at sf.citidirect.com			v. 21.09.28		Page 36 of 42				© Copyright 2025 Citigroup


Citigroup Commercial Mortgage Trust 2017-C4
Commercial Mortgage Pass-Through Certificates, Series 2017-C4								May 14, 2025
UNSCHEDULED PRINCIPAL DETAIL


		Liquidation /	Liquid / Prepay	Principal	Principal	Prepayment Interest	Prepayment	Yield Maintenance
Loan ID	OMCR	Prepayment Date	Code (5)	Collections	Adjustments	Excess / (Shortfall)	Penalties (PPP)	Penalties (YM)
No Loans with Unscheduled Principal Activity to Report.




Reports Available at sf.citidirect.com v. 21.09.28				Page 37 of 42			© Copyright 2025 Citigroup


Citigroup Commercial Mortgage Trust 2017-C4
Commercial Mortgage Pass-Through Certificates, Series 2017-C4										May 14, 2025

HISTORICAL UNSCHEDULED PRINCIPAL DETAIL


Distribution			Liquidation /	Liquid / Prepay	Principal		Principal	Prepayment Interest	Prepayment	Yield Maintenance
Date	Loan ID	OMCR	Prepayment Date	Code (5)	Collections		Adjustments	Excess / (Shortfall)	Penalties (PPP)	Penalties (YM)

4/14/2025	30313326	44	04/06/2025	1	95,990.50		-	-	-	-
6/14/2024	30313332	50	06/06/2024	8	3,625,000.00		-	-	36,250.00	-
10/16/2023	30313282	3	10/06/2023	5	42,991,675.51		-	-	-	-
12/14/2022	30313308	25	11/16/2022	2	14,346,175.77		-	-	-	-
10/17/2022	30313302	19	10/06/2022	5	21,295,198.58		-	-	-	-
10/17/2022	30313314	31	10/06/2022	5	9,150,033.19		-	-	-	-
10/17/2022	30313334	52	10/06/2022	5	3,017,928.76		-	-	-	-
9/14/2022	30313309	26	09/06/2022	5	13,303,403.21		-	-	-	-
9/14/2022	30313329	47	08/12/2022	5	4,645,431.06		-	-	-	-
5/13/2022	30313320	38	05/06/2022	9	6,850,787.24		-	-	-	102,487.99
7/14/2021	30313282	3		0	(129,800.19	)	-	-	-	-
12/14/2020	30313301	18	12/07/2020	8	22,750,000.00		-	-	-	500,454.78




Reports Available at sf.citidirect.com		v. 21.09.28			Page 38 of 42				© Copyright 2025 Citigroup


Citigroup Commercial Mortgage Trust 2017-C4
Commercial Mortgage Pass-Through Certificates, Series 2017-C4										May 14, 2025
LIQUIDATED LOAN DETAIL


		Beginning	Most	Liquidation	Net		Net	Realized	Date of		Loss with
		Scheduled	Recent	Sales	Proceeds	Liquidation	Proceeds	Loss to	Current	Current Cumulative	Cumulative
Loan ID	OMCR	Balance	Value	Price	Received	Expense	Available	Trust	Adj. to Loan	Adj. to Loan Adj. to Loan	Adj. to Trust
No Loans liquidated to Report.




Reports Available at sf.citidirect.com		v. 21.09.28				Page 39 of 42				© Copyright 2025 Citigroup


Citigroup Commercial Mortgage Trust 2017-C4
Commercial Mortgage Pass-Through Certificates, Series 2017-C4										May 14, 2025
HISTORICAL LIQUIDATED LOAN


		Beginning	Most	Liquidation	Net		Net	Realized	Date of		Loss with
Distribution		Scheduled	Recent	Sales	Proceeds	Liquidation	Proceeds	Loss to	Current	Current Cumulative	Cumulative
Date	Loan ID OMCR	Balance	Value	Price	Received	Expense	Available	Trust	Adj. to Loan	Adj. to Loan Adj. to Loan	Adj. to Trust
No Loans liquidated to Report.




Reports Available at sf.citidirect.com		v. 21.09.28				Page 40 of 42				© Copyright 2025 Citigroup


Citigroup Commercial Mortgage Trust 2017-C4
Commercial Mortgage Pass-Through Certificates, Series 2017-C4					May 14, 2025

CREFC® INVESTOR REPORTING PACKAGE LEGENDS

1\|CREFC Investor Reporting Package Legends
	Property Type (1)		Workout Strategy (3)		Liquidation/Prepayment Code (5)

MF	Multifamily	1	Modification	1	Partial Liquidation (Curtailment)
RT	Retail	2	Foreclosure	2	Payoff Prior To Maturity
HC	HealthCare	3	Bankruptcy	3	Disposition / Liquidation
IN	Industrial	4	Extension	4	Repurchase / Substitution
MH	Mobile Home Park	5	Note Sale	5	Full Payoff At Maturity
OF	Office	6	DPO	6	DPO
MU	Mixed Use	7	REO	7	Liquidation prior to 7/1/2006
LO	Lodging	8	Resolved	8	Payoff With Penalty
SS	Self Storage	9	Pending Return to Master Servicer	9	Payoff With Yield Maintenance
SE	Securities	10	Deed In Lieu of Foreclosure	10	Curtailment With Penalty
CH	Cooperative Housing	11	Full Payoff	11	Curtailment With Yield Maintenance
ZZ	Missing Information	12	Reps and Warranties
SF	SF	13	TBD
WH	Warehouse	98	Other
OT	Other

Modification Code (4)

	Payment Status of Loan (2)
		1	Maturity Date Extension
A	In Grace Period	2	Amortization Change
B	Late, but less than 30 Days	3	Principal Write-Off
0	Current	4	Blank (formerly Combination)
1	30-59 Days Delinquent	5	Temporary Rate Reduction
2	60-89 Days Delinquent	6	Capitalization of Interest
3	90-120 Days Delinquent	7	Capitalization of Taxes
4	Performing Matured Balloon	8	Other
5	Non Performing Matured Balloon	9	Combination
6	121+ Days Delinquent	10	Forbearance




Reports Available at sf.citidirect.com		v. 21.09.28	Page 41 of 42		© Copyright 2025 Citigroup


Citigroup Commercial Mortgage Trust 2017-C4
Commercial Mortgage Pass-Through Certificates, Series 2017-C4			May 14, 2025
NOTES
No Notes available for this deal at this time.




Reports Available at sf.citidirect.com	v. 21.09.28	Page 42 of 42	© Copyright 2025 Citigroup

CITIGROUP COMMERCIAL MORTGAGE TRUST 2017-C4 10-D