8-K 1 csf05c01_10504.txt 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 Date of Report: April 15, 2005 (Date of earliest event reported) Commission File No.: 333-121904-01 Credit Suisse First Boston Mortgage Securities Corp. Commercial Mortgage Pass-Through Certificates Series 2005-C1 (Exact name of registrant as specified in its charter) New York (governing law of Pooling and Servicing Agreement) (State of Incorporation) 54-2169451 54-2169452 54-2169453 54-6658765 (I.R.S. Employer Identification No.) c/o Wells Fargo Bank, N.A. 9062 Old Annapolis Road Columbia, MD 21045 (Address of principal executive offices) (Zip Code) (410) 884-2000 Registrant's Full Telephone Number (Former name, former address and former fiscal year, if changed since last report) 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 (see General Instruction A.2. below): [ ] 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)) ITEM 8.01 Other Events On April 15, 2005, a distribution was made to holders of Credit Suisse First Boston Mortgage Securities Corp., Commercial Mortgage Pass-Through Certificates, Series 2005-C1. ITEM 9.01 Financial Statements and Exhibits (c) Exhibits Exhibit Number Description (EX-99.1) Monthly report distributed to holders of Commercial Mortgage Pass-Through Certificates, Series 2005-C1, relating to the April 15, 2005 distribution. 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. Credit Suisse First Boston Mortgage Securities Corp. Commercial Mortgage Pass-Through Certificates Series 2005-C1 (Registrant) By: Wells Fargo Bank, N.A. as Trustee By: /s/ Beth Belfield, Assistant Vice President By: Beth Belfield, Assistant Vice President Date: April 15, 2005 INDEX TO EXHIBITS Exhibit Number Description (EX-99.1) Monthly report distributed to holders of Commercial Mortgage Pass-Through Certificates, Series 2005-C1, relating to the April 15, 2005 distribution. Wells Fargo Bank, N.A. Corporate Trust Services 9062 Old Annapolis Road Columbia, MD 21045-1951 Credit Suisse First Boston Mortgage Securities Corp. Commercial Mortgage Pass-Through Certificates Series 2005-C1 For Additional Information, please contact CTSLink Customer Service (301) 815-6600 Reports Available on the World Wide Web @ www.ctslink.com/cmbs Payment Date: April 15, 2005 Record Date: March 31, 2005 DISTRIBUTION DATE STATEMENT Table of Contents STATEMENT SECTIONS PAGE(s) Certificate Distribution Detail 2 Certificate Factor Detail 3 Reconciliation Detail 4 Other Required Information 5 Cash Reconciliation 6 Ratings Detail 7 Current Mortgage Loan and Property Stratification Tables 8 - 10 Mortgage Loan Detail 11 - 16 Principal Prepayment Detail 17 Historical Detail 18 Delinquency Loan Detail 19 Specially Serviced Loan Detail 20 - 21 Modified Loan Detail 22 Liquidated Loan Detail 23 Bond / Collateral Realized Loss Reconciliation 24 Depositor Credit Suisse First Boston Mortgage Securities Corp. 11 Madison Avenue, 5th Floor New York, NY 10010 Contact: General Information Number Phone Number: (212) 325-2000 Master Servicer GMAC Commercial Mortgage Corporation 200 Witmer Road Horsham, PA 19044-8015 Contact: Darri Cunningham Phone Number: (215) 328-1784 Special Servicer Lennar Partners, Inc. 1601 Washington Avenue Suite 800 Miami Beach, FL 33139 Contact: Steve Bruha Phone Number: (305) 229-6614 This report has been compiled from information provided to Wells Fargo Bank, N.A. by various third parties, which may include the Servicer, Master Servicer, Special Servicer and others. Wells Fargo Bank, N.A. has not independently confirmed the accuracy of information received from these third parties and assumes no duty to do so. Wells Fargo Bank, N.A. expressly disclaims any responsibility for the accuracy or completeness of information furnished by third parties. Copyright 2005, Wells Fargo Bank, N.A.

Appraisal Reduction Amount None Cash Reconciliation Detail Total Funds Collected Interest: Scheduled Interest 7,006,084.57 Interest reductions due to Nonrecoverability Determinations 0.00 Interest Adjustments 0.00 Deferred Interest 0.00 Net Prepayment Interest Shortfall 0.00 Net Prepayment Interest Excess 0.00 Extension Interest 0.00 Interest Reserve Withdrawal 0.00 Total Interest Collected 7,006,084.57 Principal: Scheduled Principal 908,934.74 Unscheduled Principal 0.00 Principal Prepayments 0.00 Collection of Principal after Maturity Date 0.00 Recoveries from Liquidation and Insurance Proceeds 0.00 Excess of Prior Principal Amounts paid 0.00 Curtailments 0.00 Negative Amortization 0.00 Principal Adjustments 0.00 Total Principal Collected 908,934.74 Other: Prepayment Penalties/Yield Maintenance 0.00 Repayment Fees 0.00 Borrower Option Extension Fees 0.00 Equity Payments Received 0.00 Net Swap Counterparty Payments Received 0.00 Total Other Collected: 0.00 Total Funds Collected 7,915,019.31 Total Funds Distributed Fees: Master Servicing Fee 61,646.10 Trustee Fee 2,075.35 Certificate Administration Fee 0.00 Insurer Fee 0.00 Miscellaneous Fee 0.00 Total Fees 63,721.45 Additional Trust Fund Expenses: Reimbursement for Interest on Advances 0.00 ASER Amount 0.00 Special Servicing Fee 0.00 Rating Agency Expenses 0.00 Attorney Fees & Expenses 0.00 Bankruptcy Expense 0.00 Taxes Imposed on Trust Fund 0.00 Non-Recoverable Advances 0.00 Other Expenses 0.00 Total Additional Trust Fund Expenses 0.00 Interest Reserve Deposit 0.00 Payments to Certificateholders & Others: Interest Distribution 6,942,363.11 Principal Distribution 908,934.74 Prepayment Penalties/Yield Maintenance 0.00 Borrower Option Extension Fees 0.00 Equity Payments Paid 0.00 Net Swap Counterparty Payments Paid 0.00 Total Payments to Certificateholders & Others 7,851,297.85 Total Funds Distributed 7,915,019.30

Principal Prepayment Detail No Principal Prepayments this Period

Delinquency Loan Detail No Delinquent Loans this Period Specially Serviced Loan Detail - Part 1 No Specially Serviced Loans this Period Specially Serviced Loan Detail - Part 2 No Specially Serviced Loans this Period Modified Loan Detail No Modified Loans Liquidated Loan Detail No Liquidated Loans this Period Bond/Collateral Realized Loss Reconciliation No Realized Losses this Period

CSFB COMMERCIAL MORT PASS THR CERTS SER 2005-C1 8-K