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

FORM 8-K

CURRENT REPORT
Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

March 21, 2025
Date of Report (Date of Earliest Event Reported)

Central Index Key Number of the issuing entity:  0001706060
UBS Commercial Mortgage Trust 2017-C1
(Exact name of issuing entity)

Central Index Key Number of the registrant:  0001532799
UBS Commercial Mortgage Securitization Corp.
(Exact name of registrant as specified in its charter)

Central Index Key Number of the sponsor:  0001685185
UBS AG, acting through its branch located at 1285 Avenue of the Americas, New York, New York
(Exact name of sponsor as specified in its charter)

Central Index Key Number of the sponsor:  0001592182
LMF Commercial, LLC (formerly known as Rialto Mortgage Finance, LLC)
(Exact name of sponsor as specified in its charter)

Central Index Key Number of the sponsor:  0001542256
Natixis Real Estate Capital LLC
(Exact name of sponsor as specified in its charter)

Central Index Key Number of the sponsor:  0000740906
Wells Fargo Bank, National Association
(Exact name of sponsor as specified in its charter)

Central Index Key Number of the sponsor:  0001238163
Société Générale, New York Branch
(Exact name of sponsor as specified in its charter)

Central Index Key Number of the sponsor:  0001548567
CIBC Inc.
(Exact name of sponsor as specified in its charter)

New York	333-207340-01	38-4032144 38-4032145
(State or other jurisdiction of incorporation of issuing entity)	(Commission File Number of issuing entity)	(I.R.S. Employer Identification Numbers)

c/o Computershare Trust Company, N.A., as agent for
Wells Fargo Bank, National Association
9062 Old Annapolis Road
Columbia, MD 21045
(Address of principal executive offices of the issuing entity) (Zip Code)

(212) 713-8832
Registrant's Telephone number, including area code

Former name or former address, if changed since last report:  Not Applicable

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

☐  Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

☐  Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

☐  Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act(17 CFR 240.14d-2(b))

☐  Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act(17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

Title of each class Trading Symbol(s) Name of each exchange on which registered

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

☐  Emerging growth company

☐  If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised Financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.

Item 8.01 Other Events.

The75 Broad Street Mortgage Loan, which constituted approximately 3.4% of the asset pool of the issuing entity as of its cut-off date, is an asset of the issuing entity and is part of a loan combination that is being serviced and administered under the trust and servicing agreement, dated as of May 1, 2017, relating to the Natixis Commercial Mortgage Securities Trust 2017-75B filed as Exhibit 4.3 to the registrant’s Current Report on Form 8-K filed on June 12, 2017 (the “NCMS 2017-75B TSA”).  Pursuant to Section 7.1(d) of the NCMS 2017-75B TSA, KeyBank National Association, a national banking association, was removed as special servicer of the 75 Broad Street Mortgage Loan and Torchlight Loan Services, LLC (“Torchlight”), a Delaware limited liability company, was appointed as the successor special servicer of the75 Broad Street Mortgage Loan under the NCMS 2017-75B TSA.

In the interest of transaction management, this Current Report on Form 8-K is being filed to record that, effective as of March 21, 2025, the 75 Broad Street Mortgage Loan will be specially serviced, if necessary, pursuant to the NCMS 2017-75B TSA, by Torchlight.  Torchlight maintains its principal special servicing office at 90 Park Avenue, 20th Floor, New York, New York 10016 and its telephone number is 212-883-2800.

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

UBS Commercial Mortgage Securitization Corp.
(Depositor)

/s/ Nicholas Galeone
Nicholas Galeone, President

Date:  March 21, 2025

/s/ Andrew Lisa
Andrew Lisa, Director

Date:  March 21, 2025