Citigroup Commercial Mortgage Trust 2017-C4

Commercial Mortgage Pass-Through Certificates, Series 2017-C4

STATEMENT TO NOTEHOLDERS

August 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	33
15	.	Historical Specially Serviced Loan Detail	34
16	.	Unscheduled Principal Detail	38
17	.	Historical Unscheduled Principal Detail	39
18	.	Liquidated Loan Detail	40
19	.	Historical Liquidated Loan Detail	41
20	.	CREFC Investor Reporting Package Legends	42
21	.	Notes	43


Reports Available at sf.citidirect.com	v. 21.09.28	Page 1 of 43	© Copyright 2025 Citigroup

Citigroup Commercial Mortgage Trust 2017-C4

Commercial Mortgage Pass-Through Certificates, Series 2017-C4

DISTRIBUTION SUMMARY

August 14, 2025


											Accretion
											&
											Non-Cash
					Accrual		Other				Balance
	Original	Prior	Pass-Through		Day	Interest	(As Interest)	Principal	Total	Realized Loss	Increase/		Current
Class	Balance	Balance	Rate		Count	Distributed	Distributed	Distributed	Distributed	/(Recovery)	(Decrease)		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	17,955,474.70	3.297000	%	30/360	49,332.67	-	725,123.48	774,456.15	-	-		17,230,351.22
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	4.283204	%	30/360	143,858.54	-	-	143,858.54	-	-		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	4.533204	%	30/360	83,048.30	-	-	83,048.30	-	-		21,984,000.00
F-RR	12,214,000.00	12,214,000.00	4.533204	%	30/360	46,140.46	-	-	46,140.46	-	-		12,214,000.00
G-RR	12,213,000.00	12,213,000.00	4.533204	%	30/360	46,136.68	-	-	46,136.68	-	-		12,213,000.00
H-RR	9,770,000.00	9,770,000.00	4.533204	%	30/360	36,907.83	-	-	36,907.83	-	-		9,770,000.00
J-RR	48,853,893.00	48,853,893.00	4.533204	%	30/360	184,367.85	-	-	184,367.85	-	-		48,853,893.00
S	-	-	0.000000	%	30/360	-	-	-	-	-	-		-
R	-	-	0.000000	%	30/360	-	-	-	-	-	-		-
Total	977,059,893.00	782,504,958.34				2,367,173.06	-	725,123.48	3,092,296.54	-	-		781,779,834.86
Notional
X-A	757,221,000.00	562,666,065.34	1.122604	%	30/360	526,375.88	-	-	526,375.88	-	(725,123.48	)	561,940,941.86
X-B	85,493,000.00	85,493,000.00	0.348950	%	30/360	24,860.67	-	-	24,860.67	-	-		85,493,000.00
X-D	29,311,000.00	29,311,000.00	1.533204	%	30/360	37,449.78	-	-	37,449.78	-	-		29,311,000.00
Total	872,025,000.00	677,470,065.34				588,686.33	-	-	588,686.33	-	(725,123.48	)	676,744,941.86

Grand Total	1,849,084,893.00	1,459,975,023.68				2,955,859.39	-	725,123.48	3,680,982.87	-	(725,123.48	)	1,458,524,776.72


Reports Available at sf.citidirect.com	v. 21.09.28	Page 2 of 43	© Copyright 2025 Citigroup

Citigroup Commercial Mortgage Trust 2017-C4

Commercial Mortgage Pass-Through Certificates, Series 2017-C4

DISTRIBUTION SUMMARY - FACTORS

August 14, 2025


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

A-1	17326	FAA5	07/31/2025	-	-	-	-	-	-	-
A-2	17326	FAB3	07/31/2025	-	-	-	-	-	-	-
A-3	17326	FAC1	07/31/2025	2.22557067	-	-	2.22557067	-	-	832.24829433
A-4	17326	FAD9	07/31/2025	2.89250001	-	-	2.89250001	-	-	1,000.00000000
A-AB	17326	FAE7	07/31/2025	1.21509039	-	17.86018424	19.07527463	-	-	424.39288719
A-S	17326	FAH0	07/31/2025	3.13666662	-	-	3.13666662	-	-	1,000.00000000
X-A	17326	FAF4	07/31/2025	0.69514168	-	-	0.69514168	-	-	742.10955832
B	17326	FAJ6	07/31/2025	3.41333333	-	-	3.41333333	-	-	1,000.00000000
C	17326	FAK3	07/31/2025	3.56933654	-	-	3.56933654	-	-	1,000.00000000
X-B	17326	FAG2	07/31/2025	0.29079188	-	-	0.29079188	-	-	1,000.00000000
D	17326FAL1 U1746HAA4		07/31/2025	2.50000000	-	-	2.50000000	-	-	1,000.00000000
X-D	17326FAY3 U1746HAG1		07/31/2025	1.27766982	-	-	1.27766982	-	-	1,000.00000000
E-RR	17326	FAP2	07/31/2025	3.77767012	-	-	3.77767012	-	-	1,000.00000000
F-RR	17326	FAR8	07/31/2025	3.77766989	-	-	3.77766989	-	-	1,000.00000000
G-RR	17326	FAT4	07/31/2025	3.77766970	-	-	3.77766970	-	-	1,000.00000000
H-RR	17326	FAV9	07/31/2025	3.77766940	-	-	3.77766940	-	-	1,000.00000000
J-RR	17326	FAX5	07/31/2025	3.77386199	-	-	3.77386199	-	-	1,000.00000000
S	17326	FBD8	07/31/2025	-	-	-	-	-	-	-
R	17326	FBA4	07/31/2025	-	-	-	-	-	-	-


Reports Available at sf.citidirect.com	v. 21.09.28	Page 3 of 43	© Copyright 2025 Citigroup

Citigroup Commercial Mortgage Trust 2017-C4

Commercial Mortgage Pass-Through Certificates, Series 2017-C4

DISTRIBUTION INFORMATION - INTEREST DETAIL

August 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	%	07/01-07/31	-	-	-	-	-	-	-	-	-
A-2	3.19000	%	3.19000	%	3.19000	%	07/01-07/31	-	-	-	-	-	-	-	-	-
A-3	3.20900	%	3.20900	%	3.20900	%	07/01-07/31	534,136.96	-	-	-	-	534,136.96	-	-	534,136.96
A-4	3.47100	%	3.47100	%	3.47100	%	07/01-07/31	785,866.22	-	-	-	-	785,866.22	-	-	785,866.22
A-AB	3.29700	%	3.29700	%	3.29700	%	07/01-07/31	49,332.67	-	-	-	-	49,332.67	-	-	49,332.67
A-S	3.76400	%	3.76400	%	3.76400	%	07/01-07/31	229,854.93	-	-	-	-	229,854.93	-	-	229,854.93
B	4.09600	%	4.09600	%	4.09600	%	07/01-07/31	154,245.12	-	-	-	-	154,245.12	-	-	154,245.12
C	4.34400	%	4.28320	%	4.28320	%	07/01-07/31	143,858.54	-	-	-	-	143,858.54	-	-	143,858.54
D	3.00000	%	3.00000	%	3.00000	%	07/01-07/31	73,277.50	-	-	-	-	73,277.50	-	-	73,277.50
E-RR	4.59400	%	4.53320	%	4.53320	%	07/01-07/31	83,048.30	-	-	-	-	83,048.30	-	-	83,048.30
F-RR	4.59400	%	4.53320	%	4.53320	%	07/01-07/31	46,140.46	-	-	-	-	46,140.46	-	-	46,140.46
G-RR	4.59400	%	4.53320	%	4.53320	%	07/01-07/31	46,136.68	-	-	-	-	46,136.68	-	-	46,136.68
H-RR	4.59400	%	4.53320	%	4.53320	%	07/01-07/31	36,907.83	-	-	-	-	36,907.83	-	-	36,907.83
J-RR	4.59400	%	4.53320	%	4.53320	%	07/01-07/31	184,553.88	-	-	1,173.41	-	184,367.85	-	-	184,367.85
S	0.00000	%	0.00000	%	0.00000	%	07/01-07/31	-	-	-	-	-	-	-	-	-
R	0.00000	%	0.00000	%	0.00000	%	07/01-07/31	-	-	-	-	-	-	-	-	-
Total								2,367,359.09	-	-	1,173.41	-	2,367,173.06	-	-	2,367,173.06
Notional
X-A	1.27500	%	1.12260	%	1.12260	%	07/01-07/31	526,375.88	-	-	-	-	526,375.88	-	-	526,375.88
X-B	0.38100	%	0.34895	%	0.34895	%	07/01-07/31	24,860.67	-	-	-	-	24,860.67	-	-	24,860.67
X-D	1.59400	%	1.53320	%	1.53320	%	07/01-07/31	37,449.78	-	-	-	-	37,449.78	-	-	37,449.78
Total								588,686.33	-	-	-	-	588,686.33	-	-	588,686.33

Grand Total								2,956,045.42	-	-	1,173.41	-	2,955,859.39	-	-	2,955,859.39


Reports Available at sf.citidirect.com	v. 21.09.28	Page 4 of 43	© Copyright 2025 Citigroup

Citigroup Commercial Mortgage Trust 2017-C4

Commercial Mortgage Pass-Through Certificates, Series 2017-C4

DISTRIBUTION INFORMATION - INTEREST SHORTFALL DETAIL

August 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	-	-	-	261,372.57	987.38	186.03	-	262,545.98	-	-	-	-	-
S	-	-	-	-	-	-	-	-	-	-	-	-	-
R	-	-	-	-	-	-	-	-	-	-	-	-	-
Total	-	-	-	261,372.57	987.38	186.03	-	262,545.98	-	-	-	-	-
Notional
X-A	-	-	-	-	-	-	-	-	-	-	-	-	-
X-B	-	-	-	-	-	-	-	-	-	-	-	-	-
X-D	-	-	-	-	-	-	-	-	-	-	-	-	-
Total	-	-	-	-	-	-	-	-	-	-	-	-	-

Grand Total	-	-	-	261,372.57	987.38	186.03	-	262,545.98	-	-	-	-	-


Reports Available at sf.citidirect.com	v. 21.09.28	Page 5 of 43	© Copyright 2025 Citigroup

Citigroup Commercial Mortgage Trust 2017-C4

Commercial Mortgage Pass-Through Certificates, Series 2017-C4

DISTRIBUTION INFORMATION - PRINCIPAL DETAIL

August 14, 2025


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

A-1	-	-	-	-	-	-	-	2.84	%	0.00	%	30.00	%	37.49	%
A-2	-	-	-	-	-	-	-	10.63	%	0.00	%	30.00	%	37.49	%
A-3	199,739,590.64	-	-	-	-	199,739,590.64	-	24.56	%	25.55	%	30.00	%	37.49	%
A-4	271,691,000.00	-	-	-	-	271,691,000.00	-	27.81	%	34.75	%	30.00	%	37.49	%
A-AB	17,955,474.70	725,123.48	-	-	-	17,230,351.22	-	4.16	%	2.20	%	30.00	%	37.49	%
A-S	73,280,000.00	-	-	-	-	73,280,000.00	-	7.50	%	9.37	%	22.50	%	28.12	%
B	45,189,000.00	-	-	-	-	45,189,000.00	-	4.62	%	5.78	%	17.88	%	22.34	%
C	40,304,000.00	-	-	-	-	40,304,000.00	-	4.13	%	5.16	%	13.75	%	17.18	%
D	29,311,000.00	-	-	-	-	29,311,000.00	-	3.00	%	3.75	%	10.75	%	13.44	%
E-RR	21,984,000.00	-	-	-	-	21,984,000.00	-	2.25	%	2.81	%	8.50	%	10.62	%
F-RR	12,214,000.00	-	-	-	-	12,214,000.00	-	1.25	%	1.56	%	7.25	%	9.06	%
G-RR	12,213,000.00	-	-	-	-	12,213,000.00	-	1.25	%	1.56	%	6.00	%	7.50	%
H-RR	9,770,000.00	-	-	-	-	9,770,000.00	-	1.00	%	1.25	%	5.00	%	6.25	%
J-RR	48,853,893.00	-	-	-	-	48,853,893.00	-	5.00	%	6.25	%	0.00	%	0.00	%
S	-	-	-	-	-	-	-	0.00	%	0.00	%	0.00	%	0.00	%
R	-	-	-	-	-	-	-	0.00	%	0.00	%	0.00	%	0.00	%

Total	782,504,958.34	725,123.48	-	-	-	781,779,834.86	-	100.00	%	100.00	%


Reports Available at sf.citidirect.com	v. 21.09.28	Page 6 of 43	© Copyright 2025 Citigroup

Citigroup Commercial Mortgage Trust 2017-C4

Commercial Mortgage Pass-Through Certificates, Series 2017-C4

RECONCILIATION DETAIL

August 14, 2025


SOURCE OF FUNDS			ALLOCATION OF FUNDS

Interest Funds Available			Scheduled Fees
Scheduled Interest	2,971,078.98		Servicing Fee	9,027.34
Gross Prepayment Interest Shortfall	-		Trustee/Certificate Administrator Fee	4,312.54
Interest Adjustments	-		Operating Advisor Fee	1,181.63
ASER Amount	-		Asset Representations Reviewer Ongoing Fee	175.14
Realized Loss in Excess of Principal Balance	-		CREFC Intellectual Property Royalty License Fee	336.90
Total Interest Funds Available		2,971,078.98	Total Scheduled Fees			15,033.55
Principal Funds Available			Additional Fees, Expenses, etc.
Scheduled Principal	725,123.48		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	(282.80	)
			Borrower Reimbursable Trust Fund Expenses	-
Total Principal Funds Available		725,123.48
			Other Expenses	-
Other Funds Available
Yield Maintenance Charges	-		Total Additional Fees, Expenses, etc.			186.04
Withdrawal of Withheld Amounts from the Interest Reserve			Distributions
Account	-
			Interest Distribution	2,955,859.39
Deposit of Withheld Amounts to the Interest Reserve Account	-
			Principal Distribution	725,123.48
Total Other Funds Available		-	Yield Maintenance Charge Distribution	-
			Total Distributions			3,680,982.87




Total Funds Available		3,696,202.46
			Total Funds Allocated			3,696,202.46


Reports Available at sf.citidirect.com	v. 21.09.28	Page 7 of 43	© Copyright 2025 Citigroup

Citigroup Commercial Mortgage Trust 2017-C4

Commercial Mortgage Pass-Through Certificates, Series 2017-C4

OTHER INFORMATION

Interest Reserve Account Information

August 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	80.013502	%
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

August 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	755,155,531.94	96.59	4.3871	24	1.651366
61 to 90 Months	3	26,624,303.68	3.41	5.0333	74	1.509919
91 Months or Greater	0	0.00	0.00	0.0000	0	0.000000
Total	48	781,779,835.62	100.00	4.4091	26	1.646549

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	10	203,424,752.56	26.02	4.6511	24	0.841508
1.251 to 1.500	10	164,405,138.30	21.03	4.3342	29	1.406575
1.501 to 1.750	11	157,590,721.02	20.16	4.5988	28	1.600071
1.751 to 2.000	5	56,685,446.38	7.25	4.6697	23	1.890492
2.001 to 2.250	0	0.00	0.00	0.0000	0	0.000000
2.251 to 2.500	5	101,776,921.83	13.02	4.0390	25	2.430773
2.501 to 2.750	4	83,960,626.56	10.74	3.9183	23	2.697187
2.751 to 3.000	0	0.00	0.00	0.0000	0	0.000000
3.001 to 3.250	2	6,836,228.97	0.87	4.3403	24	3.201216
3.251 to 3.500	0	0.00	0.00	0.0000	0	0.000000
3.501 to 3.750	0	0.00	0.00	0.0000	0	0.000000
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	25	4.190000
Total	48	781,779,835.62	100.00	4.4091	26	1.646549


Reports Available at sf.citidirect.com	v. 21.09.28	Page 9 of 43	© Copyright 2025 Citigroup

Citigroup Commercial Mortgage Trust 2017-C4

Commercial Mortgage Pass-Through Certificates, Series 2017-C4

STRATIFICATION DETAIL

August 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	32,595,469.22	4.17	4.7985	26	2.010097
10,000,001 to 15,000,000	4	49,345,012.32	6.31	4.7804	24	1.347456
15,000,001 to 20,000,000	4	70,929,795.92	9.07	4.6659	35	1.698542
20,000,001 to 25,000,000	7	164,183,174.17	21.00	4.2992	24	1.865177
25,000,001 to 30,000,000	2	52,170,983.00	6.67	4.3514	25	1.246342
30,000,001 to 35,000,000	3	99,824,041.52	12.77	4.5735	22	0.846501
35,000,001 to 40,000,000	2	75,794,321.63	9.70	4.1001	24	1.389967
40,000,001 to 45,000,000	1	41,000,000.00	5.24	3.9950	25	2.750000
45,000,001 to 50,000,000	1	50,000,000.00	6.40	3.6000	27	2.450000
5,000,001 to 10,000,000	12	85,937,037.84	10.99	4.7715	30	1.705841
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	7.67	4.4953	25	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	781,779,835.62	100.00	4.4091	26	1.646549


Reports Available at sf.citidirect.com	v. 21.09.28	Page 10 of 43	© Copyright 2025 Citigroup

Citigroup Commercial Mortgage Trust 2017-C4

Commercial Mortgage Pass-Through Certificates, Series 2017-C4

STRATIFICATION DETAIL

August 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	145,429,045.50	18.60	3.7263	24	2.400227
4.01 to 4.25	4	117,894,321.63	15.08	4.1149	24	1.386416
4.26 to 4.50	9	206,208,617.04	26.38	4.4200	24	1.592039
4.51 to 4.75	13	189,359,329.90	24.22	4.6381	24	1.593622
4.76 to 5.00	5	15,621,840.52	2.00	4.9316	24	1.643596
5.01 to 5.25	10	95,115,839.31	12.17	5.1132	36	1.073172
5.26 to 5.50	1	2,091,455.96	0.27	5.2850	24	2.460000
5.51 to 5.75	1	10,059,385.76	1.29	5.5470	24	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	781,779,835.62	100.00	4.4091	26	1.646549

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	25	4.190000
Lodging	7	124,184,860.57	15.88	4.7125	22	1.182537
Mixed Use	8	158,247,419.41	20.24	4.3002	23	1.888864
Multifamily	3	44,566,455.96	5.70	4.7459	24	1.672479
Office	9	222,068,415.58	28.41	4.1937	27	1.451369
Other	1	6,000,000.00	0.77	5.2500	22	1.820000
Retail	14	184,716,073.90	23.63	4.3853	29	1.804199
Self Storage	1	5,190,037.12	0.66	4.9150	25	0.750000
Total	48	781,779,835.62	100.00	4.4091	26	1.646549


Reports Available at sf.citidirect.com	v. 21.09.28	Page 11 of 43	© Copyright 2025 Citigroup

Citigroup Commercial Mortgage Trust 2017-C4

Commercial Mortgage Pass-Through Certificates, Series 2017-C4

STRATIFICATION DETAIL

August 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	428,831,427.14	54.85	4.3176	26	1.816170
241 to 270 Months	25	352,948,408.48	45.15	4.5203	26	1.440460
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	781,779,835.62	100.00	4.4091	26	1.646549

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	86	1.260000
37 to 48 Months	1	15,709,303.68	2.01	5.0400	74	1.380000
49 Months or Greater	46	765,090,531.94	97.87	4.3954	25	1.652517
Total	48	781,779,835.62	100.00	4.4091	26	1.646549


Reports Available at sf.citidirect.com	v. 21.09.28	Page 12 of 43	© Copyright 2025 Citigroup

Citigroup Commercial Mortgage Trust 2017-C4

Commercial Mortgage Pass-Through Certificates, Series 2017-C4

STRATIFICATION DETAIL

August 14, 2025


State

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

California	9	154,236,493.19	19.73	4.6455	23	1.369957
Colorado	3	22,246,319.62	2.85	4.6705	24	2.433194
Connecticut	1	2,091,455.96	0.27	5.2850	24	2.460000
Delaware	0	0.00	0.00	0.0000	0	0.000000
District of Columbia	1	50,000,000.00	6.40	3.6000	27	2.450000
Florida	2	30,935,000.00	3.96	4.6507	40	1.740000
Georgia	6	28,731,069.47	3.68	4.8257	24	1.756901
Illinois	0	0.00	0.00	0.0000	0	0.000000
Iowa	1	980,000.00	0.13	5.0600	86	1.260000
Kentucky	1	37,834,960.26	4.84	4.0400	23	1.410000
Louisiana	1	25,403,871.05	3.25	3.9840	24	1.390000
Maryland	0	0.00	0.00	0.0000	0	0.000000
Massachusetts	3	92,475,000.00	11.83	4.5397	25	1.683066
Michigan	1	3,299,557.06	0.42	4.9800	24	1.600000
Missouri	1	6,000,000.00	0.77	5.2500	22	1.820000
Nevada	1	23,695,465.87	3.03	4.2591	23	2.480000
New York	2	60,000,000.00	7.67	3.7750	23	1.564167
North Carolina	1	8,623,012.91	1.10	4.5340	24	1.500000
Ohio	1	2,740,767.62	0.35	5.1500	25	1.480000
Pennsylvania	1	26,767,111.95	3.42	4.7000	26	1.110000
South Carolina	1	5,797,785.35	0.74	4.6400	25	1.660000
Texas	0	0.00	0.00	0.0000	0	0.000000
Utah	1	5,190,037.12	0.66	4.9150	25	0.750000
Various	6	119,193,069.77	15.25	4.5887	31	1.256566
Virginia	1	24,000,000.00	3.07	4.5110	24	1.980000
Washington	1	6,513,683.97	0.83	5.0250	26	-1.190000
West Virginia	1	4,025,174.45	0.51	3.8900	25	3.230000
Wisconsin	1	41,000,000.00	5.24	3.9950	25	2.750000
Total	48	781,779,835.62	100.00	4.4091	26	1.646549


Reports Available at sf.citidirect.com	v. 21.09.28	Page 13 of 43	© Copyright 2025 Citigroup

Citigroup Commercial Mortgage Trust 2017-C4

Commercial Mortgage Pass-Through Certificates, Series 2017-C4

MORTGAGE LOAN DETAIL

August 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	08/06/2025	4.49530	%	232,257.17	-	60,000,000.00	60,000,000.00	09/06/2027	0		0		0
30313291	10		RT	Baton Rouge	LA	08/01/2025	3.98400	%	87,310.39	46,107.74	25,449,978.79	25,403,871.05	08/01/2027	0		0		0
30313292	11		RT	Langhorne	PA	08/06/2025	4.70000	%	108,481.13	36,737.46	26,803,849.41	26,767,111.95	10/06/2027	0		0		0
30313293	12		RT	Various	XX	08/06/2025	4.40000	%	84,851.33	63,695.03	22,394,778.39	22,331,083.36	09/06/2027	0		0		0
30313294	13		OF	La Jolla	CA	08/03/2025	4.55000	%	90,876.10	37,558.35	23,194,183.29	23,156,624.94	10/06/2027	0		0		0
30313295	14		MU	Windsor Mill	NV	08/06/2025	4.25906	%	87,036.02	36,081.59	23,731,547.46	23,695,465.87	07/06/2027	0		0		0
30313296	15		MU	New York	NY	08/06/2025	3.25000	%	69,965.28	-	25,000,000.00	25,000,000.00	06/06/2027	0		0		0
30313340	16		MF	Various	XX	08/06/2025	4.71200	%	101,438.89	-	25,000,000.00	25,000,000.00	09/06/2027	0		0		0
30313300	17		LO	Arlington	VA	08/06/2025	4.51100	%	93,227.33	-	24,000,000.00	24,000,000.00	08/06/2027	0		0		0
30313281	1	A	MU	Boston	MA	08/06/2025	4.49530	%	58,064.29	-	15,000,000.00	15,000,000.00	09/06/2027	0		0		0
30313231	2		OF	Washington	DC	08/01/2025	3.60000	%	155,000.00	-	50,000,000.00	50,000,000.00	11/01/2027	0		0		0
30313251	20		OF	Various	XX	08/06/2025	4.26400	%	67,135.89	38,807.47	18,284,299.71	18,245,492.24	08/06/2027	0		0		0
30313304	21		RT	Miami	FL	08/06/2025	4.47600	%	80,941.00	-	21,000,000.00	21,000,000.00	08/06/2027	0		0		0
30313305	22		MU	Los Angeles	CA	08/06/2025	4.68300	%	78,635.38	-	19,500,000.00	19,500,000.00	07/06/2027	0		0		0
30313306	23		MF	Methuen	MA	08/06/2025	4.73000	%	71,176.65	-	17,475,000.00	17,475,000.00	09/06/2027	0		0		0
30313248	24		RT	Various	XX	08/08/2025	5.04000	%	68,260.11	18,831.82	15,728,135.50	15,709,303.68	09/08/2031	0		0		0
30313310	27		MH	Parachute	CO	08/06/2025	4.69500	%	50,457.76	19,906.53	12,480,533.09	12,460,626.56	08/06/2027	0		0		0
30313311	28		LO	Los Angeles	CA	05/06/2025	5.54700	%	48,180.32	27,389.62	10,086,775.38	10,059,385.76	08/06/2027	2		0		8
30313312	29		OF	San Jose	CA	08/06/2025	4.58000	%	46,636.49	-	11,825,000.00	11,825,000.00	10/06/2027	0		8		0
30313313	30		OF	Jacksonville	FL	08/06/2025	5.02000	%	42,946.80	-	9,935,000.00	9,935,000.00	10/06/2031	0		0		0
30313315	32		RT	Greensboro	NC	08/06/2025	4.53400	%	33,726.03	15,211.63	8,638,224.54	8,623,012.91	08/06/2027	0		0		0
30313316	33		LO	Brunswick	GA	06/06/2025	5.24000	%	37,643.93	15,032.39	8,342,658.88	8,327,626.49	09/06/2027	1		0		8
30298889	34		RT	Peach Tree	GA	08/06/2025	4.28000	%	31,382.51	-	8,515,000.00	8,515,000.00	09/06/2027	0		0		0
30313317	35		MH	Various	XX	08/06/2025	5.15000	%	33,135.76	11,638.39	7,471,891.85	7,460,253.46	10/06/2027	0		0		0
30313318	36		MH	Fort Collins	CO	08/06/2025	4.50000	%	27,081.80	14,213.05	6,988,851.59	6,974,638.54	09/06/2027	0		0		0
30313319	37		LO	Sequim	WA	07/06/2025	5.02500	%	28,265.81	18,617.99	6,532,301.96	6,513,683.97	10/06/2027	B		8		8
30313321	39		IN	San Diego	CA	08/06/2025	4.10000	%	25,066.94	-	7,100,000.00	7,100,000.00	09/06/2027	0		0		0
30313283	4		RT	Pleasant Prairie	WI	08/01/2025	3.99500	%	141,045.69	-	41,000,000.00	41,000,000.00	09/01/2027	0		0		0
30313322	40		MU	West Columbia	SC	08/06/2025	4.64000	%	23,211.54	11,553.50	5,809,338.85	5,797,785.35	09/06/2027	0		0		0
30313323	41		N/A	St. Louis	MO	08/06/2025	5.25000	%	27,125.00	-	6,000,000.00	6,000,000.00	06/06/2027	0		0		0
30313324	42		SS	Provo	UT	08/06/2025	4.91500	%	22,007.97	9,890.36	5,199,927.48	5,190,037.12	09/06/2027	0		0		0
30313325	43		OF	Venice	CA	08/06/2025	4.62450	%	21,902.15	-	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 43	© Copyright 2025 Citigroup

Citigroup Commercial Mortgage Trust 2017-C4

Commercial Mortgage Pass-Through Certificates, Series 2017-C4

MORTGAGE LOAN DETAIL

August 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	08/06/2025	3.89000	%	13,529.66	13,863.90	4,039,038.35	4,025,174.45	09/06/2027	0		0		0
30313327	45	MU	Cartersville	GA	08/06/2025	4.75000	%	18,423.08	8,963.41	4,504,114.97	4,495,151.56	06/06/2027	0		0		0
30313328	46	MU	Temecula	CA	08/06/2025	4.54100	%	18,635.88	6,820.34	4,765,836.97	4,759,016.63	08/06/2027	0		0		0
30313330	48	LO	Richmond Hill	GA	08/06/2025	5.25000	%	13,927.08	8,544.71	3,080,644.31	3,072,099.60	10/06/2027	0		0		0
30313331	49	RT	Grand Rapids	MI	08/06/2025	4.98000	%	14,172.66	5,376.74	3,304,933.80	3,299,557.06	08/06/2027	0		0		0
30313284	5	OF	San Jose	CA	08/06/2025	4.16000	%	136,186.64	58,000.83	38,017,362.20	37,959,361.37	10/06/2027	0		0		0
30313333	51	MH	Arvada	CO	08/06/2025	4.98500	%	12,089.71	5,327.21	2,816,381.73	2,811,054.52	08/06/2027	0		0		0
30313335	53	RT	Willoughby	OH	08/06/2025	5.15000	%	12,176.82	5,023.01	2,745,790.63	2,740,767.62	09/06/2027	0		0		0
30313336	54	RT	Duluth	GA	08/06/2025	4.95000	%	10,357.66	3,520.36	2,429,950.11	2,426,429.75	10/06/2027	0		0		0
30313337	55	MF	Hartford	CT	08/06/2025	5.28500	%	9,535.31	3,769.65	2,095,225.61	2,091,455.96	08/06/2027	0		0		0
30313338	56	RT	Dacula	GA	08/06/2025	4.79000	%	7,828.47	3,176.81	1,897,938.88	1,894,762.07	09/06/2027	0		0		0
30313339	57	RT	Milford	IA	08/06/2025	5.06000	%	4,270.08	-	980,000.00	980,000.00	10/06/2032	0		0		0
30313285	6	LO	Los Angeles	CA	08/06/2025	5.11400	%	151,677.19	65,846.95	34,442,951.44	34,377,104.49	03/06/2027	0		8		8
30313288	7	LO	Louisville	KY	08/06/2025	4.04000	%	131,808.27	53,077.45	37,888,037.71	37,834,960.26	07/06/2027	0		0		0
30313289	8	OF	Various	XX	08/06/2025	4.45000	%	116,910.62	62,539.19	30,509,476.22	30,446,937.03	09/06/2027	0		0		0
30313290	9	OF	New York	NY	06/06/2025	4.15000	%	125,076.39	-	35,000,000.00	35,000,000.00	09/06/2027	1		0		8
Total	Count = 48							2,971,078.98	725,123.48	782,504,959.10	781,779,835.62


Reports Available at sf.citidirect.com	v. 21.09.28	Page 15 of 43	© Copyright 2025 Citigroup

Citigroup Commercial Mortgage Trust 2017-C4

Commercial Mortgage Pass-Through Certificates, Series 2017-C4

NOI DETAIL

August 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	5,367,061.12		5,718,002.80		Not Available	Not Available
30313291	10		RT	Baton Rouge	LA	25,403,871.05	28,201,020.00		6,860,614.97		01/01/2025	03/31/2025
30313292	11		RT	Langhorne	PA	26,767,111.95	2,463,193.41		520,889.14		01/01/2025	03/31/2025
30313293	12		RT	Various	XX	22,331,083.36	3,074,102.21		2,841,532.80		01/01/2025	06/30/2025
30313294	13		OF	La Jolla	CA	23,156,624.94	2,424,374.21		2,424,374.21		Not Available	Not Available
30313295	14		MU	Windsor Mill	NV	23,695,465.87	12,679,152.27		12,658,534.92		Not Available	Not Available
30313296	15		MU	New York	NY	25,000,000.00	2,389,974.30		544,575.01		01/01/2025	03/31/2025
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	5,759,627.41		1,242,235.53		01/01/2025	03/31/2025
30313281	1	A	MU	Boston	MA	15,000,000.00	5,367,061.12		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	18,245,492.24	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	1,615,323.79		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	15,709,303.68	2,916,268.09		3,407,452.53		Not Available	Not Available
30313310	27		MH	Parachute	CO	12,460,626.56	2,084,178.74		2,342,337.06		Not Available	Not Available
30313311	28		LO	Los Angeles	CA	10,059,385.76	1,200,163.07		1,291,234.38		Not Available	Not Available
30313312	29		OF	San Jose	CA	11,825,000.00	(220,037.91	)	(105,750.89	)	Not Available	Not Available
30313313	30		OF	Jacksonville	FL	9,935,000.00	2,913,704.40		2,715,132.33		Not Available	Not Available
30313315	32		RT	Greensboro	NC	8,623,012.91	1,003,282.95		1,003,282.95		Not Available	Not Available
30313316	33		LO	Brunswick	GA	8,327,626.49	615,526.19		1,009,599.42		Not Available	Not Available
30298889	34		RT	Peach Tree	GA	8,515,000.00	886,994.04		878,306.24		01/01/2025	06/30/2025
30313317	35		MH	Various	XX	7,460,253.46	829,413.99		933,262.01		Not Available	Not Available
30313318	36		MH	Fort Collins	CO	6,974,638.54	650,410.14		807,555.45		Not Available	Not Available
30313319	37		LO	Sequim	WA	6,513,683.97	1,083,177.03		(151,793.18	)	01/01/2025	03/31/2025
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	16,835,063.77		4,143,765.22		01/01/2025	03/31/2025
30313322	40		MU	West Columbia	SC	5,797,785.35	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	5,190,037.12	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 43					© Copyright 2025 Citigroup

Citigroup Commercial Mortgage Trust 2017-C4

Commercial Mortgage Pass-Through Certificates, Series 2017-C4

NOI DETAIL

August 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	4,025,174.45	1,166,161.94	1,166,161.94	Not Available	Not Available
30313327	45	MU	Cartersville	GA	4,495,151.56	632,928.96	505,873.10	Not Available	Not Available
30313328	46	MU	Temecula	CA	4,759,016.63	780,081.98	661,263.86	07/01/2024	12/31/2024
30313330	48	LO	Richmond Hill	GA	3,072,099.60	495,037.72	131,025.38	01/01/2025	03/31/2025
30313331	49	RT	Grand Rapids	MI	3,299,557.06	399,530.64	535,354.39	Not Available	Not Available
30313284	5	OF	San Jose	CA	37,959,361.37	4,834,863.79	809,340.25	01/01/2025	03/31/2025
30313333	51	MH	Arvada	CO	2,811,054.52	627,808.03	664,001.10	01/01/2025	06/30/2025
30313335	53	RT	Willoughby	OH	2,740,767.62	286,479.31	318,799.67	01/01/2025	06/30/2025
30313336	54	RT	Duluth	GA	2,426,429.75	330,190.68	330,190.68	Not Available	Not Available
30313337	55	MF	Hartford	CT	2,091,455.96	429,256.84	420,339.14	Not Available	Not Available
30313338	56	RT	Dacula	GA	1,894,762.07	235,924.81	239,504.60	01/01/2025	06/30/2025
30313339	57	RT	Milford	IA	980,000.00	68,482.88	64,512.84	01/01/2025	06/30/2025
30313285	6	LO	Los Angeles	CA	34,377,104.49	13,539,265.09	2,718,898.17	01/01/2025	03/31/2025
30313288	7	LO	Louisville	KY	37,834,960.26	5,970,019.73	1,031,234.31	01/01/2025	03/31/2025
30313289	8	OF	Various	XX	30,446,937.03	16,316,267.32	4,047,825.61	01/01/2025	03/31/2025
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				781,779,835.62	190,334,620.75	109,228,475.08


Reports Available at sf.citidirect.com	v. 21.09.28	Page 17 of 43	© Copyright 2025 Citigroup

Citigroup Commercial Mortgage Trust 2017-C4

Commercial Mortgage Pass-Through Certificates, Series 2017-C4

DELINQUENCY LOAN DETAIL

August 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	10,142,708.47	05/06/2025	75,352.79	226,580.57	15,516.65	-	2		0
30313316	33	8,358,834.95	06/06/2025	52,640.40	105,281.89	2,336.00	9,500.00	1		0
30313319	37	6,532,301.96	07/06/2025	46,855.67	788,352.68	564,154.13	1,082,040.00	B		8		05/27/2020		09/18/2020
30313290	9	35,000,000.00	06/06/2025	124,925.70	245,821.54	774.47	2,500.00	1		0
Total	Count = 4	60,033,845.38		299,774.56	1,366,036.68	582,781.25	1,094,040.00


Reports Available at sf.citidirect.com	v. 21.09.28	Page 18 of 43	© Copyright 2025 Citigroup

Citigroup Commercial Mortgage Trust 2017-C4

Commercial Mortgage Pass-Through Certificates, Series 2017-C4

COLLATERAL PERFORMANCE - DELINQUENCY AND LOAN STATUS DETAIL

–

August 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


	2		43,327,626		1		10,059,386		0		0		0		0		0		0		0		0		0			0
08/14/2025
	4.2	%	0.0	%	2.1	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%	0.0	%		0.0	%

	1		10,086,775		0		0		0		0		0		0		0		0		0		0		0			0
07/14/2025
	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		18,474,421		0		0		0		0		0		0		0		0		0		0		0			0
06/13/2025
	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	%

	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	%


Reports Available at sf.citidirect.com	v. 21.09.28	Page 19 of 43	© Copyright 2025 Citigroup

Citigroup Commercial Mortgage Trust 2017-C4

Commercial Mortgage Pass-Through Certificates, Series 2017-C4

APPRAISAL REDUCTION DETAIL

August 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	6,532,301.96	6,513,683.97	-	05/08/2023	-	8,137.04


Reports Available at sf.citidirect.com	v. 21.09.28	Page 20 of 43	© Copyright 2025 Citigroup

Citigroup Commercial Mortgage Trust 2017-C4

Commercial Mortgage Pass-Through Certificates, Series 2017-C4

HISTORICAL APPRAISAL REDUCTION DETAIL

August 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

8/14/2025	30313319	37	Holiday Inn Express & Suites	6,532,301.96	6,513,683.97	-	05/08/2023	-		8,137.04
7/14/2025	30313319	37	Holiday Inn Express & Suites	6,551,750.31	6,532,301.96	-	05/08/2023	-		8,137.04
6/13/2025	30313319	37	Holiday Inn Express & Suites	6,570,204.29	6,551,750.31	-	05/08/2023	-		8,137.04
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


Reports Available at sf.citidirect.com	v. 21.09.28	Page 21 of 43	© Copyright 2025 Citigroup

Citigroup Commercial Mortgage Trust 2017-C4

Commercial Mortgage Pass-Through Certificates, Series 2017-C4

HISTORICAL APPRAISAL REDUCTION DETAIL

August 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

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
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 43	© Copyright 2025 Citigroup

Citigroup Commercial Mortgage Trust 2017-C4

Commercial Mortgage Pass-Through Certificates, Series 2017-C4

LOAN MODIFICATION DETAIL

August 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 43	© Copyright 2025 Citigroup

Citigroup Commercial Mortgage Trust 2017-C4

Commercial Mortgage Pass-Through Certificates, Series 2017-C4

HISTORICAL LOAN MODIFICATION DETAIL

August 14, 2025


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

08/14/2025	30313311	28	Hotel Normandie	10/06/2020	8
08/14/2025	30313316	33	Courtyard Brunswick	09/30/2020	8
08/14/2025	30313319	37	Holiday Inn Express & Suites	12/22/2022	8
08/14/2025	30313285	6	Marriott Lax	02/25/2022	8
08/14/2025	30313290	9	50 Varick	05/06/2020	8
07/14/2025	30313311	28	Hotel Normandie	10/06/2020	8
07/14/2025	30313316	33	Courtyard Brunswick	09/30/2020	8
07/14/2025	30313319	37	Holiday Inn Express & Suites	12/22/2022	8
07/14/2025	30313285	6	Marriott Lax	02/25/2022	8
07/14/2025	30313290	9	50 Varick	05/06/2020	8
06/13/2025	30313311	28	Hotel Normandie	10/06/2020	8
06/13/2025	30313316	33	Courtyard Brunswick	09/30/2020	8
06/13/2025	30313319	37	Holiday Inn Express & Suites	12/22/2022	8
06/13/2025	30313285	6	Marriott Lax	02/25/2022	8
06/13/2025	30313290	9	50 Varick	05/06/2020	8
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


Reports Available at sf.citidirect.com	v. 21.09.28	Page 24 of 43	© Copyright 2025 Citigroup

Citigroup Commercial Mortgage Trust 2017-C4

Commercial Mortgage Pass-Through Certificates, Series 2017-C4

HISTORICAL LOAN MODIFICATION DETAIL

August 14, 2025


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

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
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
Reports Available at sf.citidirect.com		v. 21.09.28			Page 25 of 43		© Copyright 2025 Citigroup

Citigroup Commercial Mortgage Trust 2017-C4

Commercial Mortgage Pass-Through Certificates, Series 2017-C4

HISTORICAL LOAN MODIFICATION DETAIL

August 14, 2025


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

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
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


Reports Available at sf.citidirect.com	v. 21.09.28	Page 26 of 43	© Copyright 2025 Citigroup

Citigroup Commercial Mortgage Trust 2017-C4

Commercial Mortgage Pass-Through Certificates, Series 2017-C4

HISTORICAL LOAN MODIFICATION DETAIL

August 14, 2025


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

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
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


Reports Available at sf.citidirect.com	v. 21.09.28	Page 27 of 43	© Copyright 2025 Citigroup

Citigroup Commercial Mortgage Trust 2017-C4

Commercial Mortgage Pass-Through Certificates, Series 2017-C4

HISTORICAL LOAN MODIFICATION DETAIL

August 14, 2025


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

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
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


Reports Available at sf.citidirect.com	v. 21.09.28	Page 28 of 43	© Copyright 2025 Citigroup

Citigroup Commercial Mortgage Trust 2017-C4

Commercial Mortgage Pass-Through Certificates, Series 2017-C4

HISTORICAL LOAN MODIFICATION DETAIL

August 14, 2025


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

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
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


Reports Available at sf.citidirect.com	v. 21.09.28	Page 29 of 43	© Copyright 2025 Citigroup

Citigroup Commercial Mortgage Trust 2017-C4

Commercial Mortgage Pass-Through Certificates, Series 2017-C4

HISTORICAL LOAN MODIFICATION DETAIL

August 14, 2025


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

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
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


Reports Available at sf.citidirect.com	v. 21.09.28	Page 30 of 43	© Copyright 2025 Citigroup

Citigroup Commercial Mortgage Trust 2017-C4

Commercial Mortgage Pass-Through Certificates, Series 2017-C4

HISTORICAL LOAN MODIFICATION DETAIL

August 14, 2025


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

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
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


Reports Available at sf.citidirect.com	v. 21.09.28	Page 31 of 43	© Copyright 2025 Citigroup

Citigroup Commercial Mortgage Trust 2017-C4

Commercial Mortgage Pass-Through Certificates, Series 2017-C4

HISTORICAL LOAN MODIFICATION DETAIL

August 14, 2025

Modification

Code (4)


Distribution				Modification
Date	Loan ID	OMCR	Property Name	Date

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 32 of 43	© Copyright 2025 Citigroup


Citigroup Commercial Mortgage Trust 2017-C4
Commercial Mortgage Pass-Through Certificates, Series 2017-C4								August 14, 2025
SPECIALLY SERVICED LOAN DETAIL


			Special Servicing	Ending	Ending	Most	Most Recent	Most Recent	Most Recent
		Workout	Fee Amount	Scheduled	Actual	Recent	Valuation	Special Servicer	Master Servicer
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 33 of 43				© Copyright 2025 Citigroup


Citigroup Commercial Mortgage Trust 2017-C4
Commercial Mortgage Pass-Through Certificates, Series 2017-C4										August 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 34 of 43				© Copyright 2025 Citigroup


Citigroup Commercial Mortgage Trust 2017-C4
Commercial Mortgage Pass-Through Certificates, Series 2017-C4										August 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 35 of 43				© Copyright 2025 Citigroup


Citigroup Commercial Mortgage Trust 2017-C4
Commercial Mortgage Pass-Through Certificates, Series 2017-C4									August 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 36 of 43				© Copyright 2025 Citigroup


Citigroup Commercial Mortgage Trust 2017-C4
Commercial Mortgage Pass-Through Certificates, Series 2017-C4									August 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 37 of 43				© Copyright 2025 Citigroup


Citigroup Commercial Mortgage Trust 2017-C4
Commercial Mortgage Pass-Through Certificates, Series 2017-C4								August 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 38 of 43			© Copyright 2025 Citigroup


Citigroup Commercial Mortgage Trust 2017-C4
Commercial Mortgage Pass-Through Certificates, Series 2017-C4										August 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 39 of 43				© Copyright 2025 Citigroup


Citigroup Commercial Mortgage Trust 2017-C4
Commercial Mortgage Pass-Through Certificates, Series 2017-C4										August 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 40 of 43				© Copyright 2025 Citigroup


Citigroup Commercial Mortgage Trust 2017-C4
Commercial Mortgage Pass-Through Certificates, Series 2017-C4										August 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 41 of 43				© Copyright 2025 Citigroup


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

CREFC® INVESTOR REPORTING PACKAGE LEGENDS

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

MF

CITIGROUP COMMERCIAL MORTGAGE TRUST 2017-C4 10-D