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 (Date of earliest event reported) ~~August~~September 17, 2004

Structured Asset Securities Corporation II
(Exact name of registrant as specified in its charter)

Delaware
(State or other jurisdiction
of incorporation)

333-111598
(Commission
File Number)

82-0569805
(IRS Employer
Identification No.)

745 Seventh Avenue, New York, New York
(Address of principal executive offices)

10019
(Zip Code)

Registrant's telephone number, including area code 212-526-7000

(Former name or former address, if changed since last report.)

~~Item~~Check 5the 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. ~~Other~~2. ~~Events~~below): [ ] ~~and~~Written ~~Regulation~~communications FDpursuant ~~Disclosure~~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))

~~This~~Section ~~current report on Form~~ 8-K ~~relates to the monthly distribution reported to the holders of LB~~-~~UBS~~ ~~Commercial~~Other ~~Mortgage Trust 2004-C1, Commercial Mortgage Pass-Through Certificates, Series 2004-C1, which was made on August 17, 2004.~~Events

Item 78. ~~Financial~~01. Other ~~Statements and Exhibits~~Events.

This current report on Form 8-K relates to the monthly distribution reported to the holders of LB-UBS Commercial Mortgage Trust 2004-C1, Commercial Mortgage Pass-Through Certificates, Series 2004-C1, which was made on September 17, 2004.

Section 9 - Financial Statements and Exhibits

Item 9.01 Financial Statements and Exhibits.

99.1 Monthly Distribution Report, Pursuant to Section 4.02 of the Pooling and Servicing Agreement for the distribution on ~~August~~September 17, 2004. ~~(Exhibit No. Description)~~

(Exhibit No. Description)

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.

LASALLE BANK NATIONAL ASSOCIATION, IN ITS CAPACITY AS TRUSTEE UNDER THE POOLING AND SERVICING AGREEMENT ON BEHALF OF STRUCTURED ASSET SECURITIES CORPORATION II, REGISTRANT

~~Date: August 20, 2004~~ By: /s/ Russell Goldenberg Russell Goldenberg Group Senior Vice President Date: September 22, 2004

LB-UBS Commercial Mortgage Trust Commercial Mortgage Pass-Through Certificates Series 2004-C1 ABN AMRO Acct: 721668.1 Reporting Package Table of Contents Payment Date:Prior Payment:Next Payment:Record Date: 17-~~Aug~~Sep-0417-~~Aug~~Sep-04 1617-~~Jul~~Aug-04 1718-~~Sep~~Oct-04 3031-~~Jul~~Aug-04 Administrator:Kathryn Hawkinson 312.904.6561kathryn.hawkinson@abnamro.com Analyst:Suzanne Severson 714.259.6226 Suzanne.Severson@abnamro.com Statement Date: 135 S. LaSalle Street, Suite 1625Chicago, IL 60603USA Statements to CertificateholdersCash Reconciliation SummaryBond Interest ReconciliationShortfall Summary Report Asset-Backed Facts ~ 15 Month Loan Status Summary Asset-Backed Facts ~ 15 Month Loan Payoff/Loss SummaryLoan Level Detail Realized Loss DetailHistorical REO ReportAppraisal Reduction Detail Page 2-4Page 5Page 6Page 7 Page 8 Page 9Page 10-14 Page 15Page 16 Page 17 Modified Loan Detail Specially Serviced (Part I) - Loan DetailSummary of Loan Maturity ExtensionsRating Information Page 18 Page 19Page 20Page 21-22 Page(s) Information is available for this issue from the following sources Issue Id: Monthly Data FileName: LUBS04C1 ~~LUBS04C1_200408_3~~LUBS04C1_200409_3.ZIP Closing Date: First Payment Date: Rated Final Payment: Date: 4-Feb-0418-Feb-04 17-Jan-36 Parties to The Transaction Depositor: Structured Asset Securities Corporation II Underwriter: Lehman Brothers Inc./UBS Warburg Master Servicer: Wachovia Bank, National Association Special Servicer: Lennar Partners, Inc. Rating Agency: Standard & Poor's/Moody's Investors Service, Inc. 800.246.5761 LaSalle Factor Line LaSalle Web Site Servicer Web Site www.wachovia.com www.etrustee.net Page 1 of 22 1316-~~Aug~~Sep-2004 - 1507:1825 (P635-P689) (c) 2004 LaSalle Bank N.A. Class CUSIP Original Opening Principal Principal Negative Closing Interest Interest Pass-Through Per $ 1000 Per $ 1000 Per $ 1000 Per $ 1000 Per $ 1000 Per $ 1000 Per $ 1000 Next Rate(3) WAC:WAMM: Payment Date:Prior Payment:Next Payment:Record Date: 5.~~857799~~857681% 17-~~Aug~~Sep-0417-~~Aug~~Sep-04 1617-~~Jul~~Aug-04 1718-~~Sep~~Oct-04 3031-~~Jul~~Aug-04 LB-UBS Commercial Mortgage Trust Commercial Mortgage Pass-Through Certificates Series 2004-C1 Face Value (1) Balance Payment Adj. or Loss Amortization Balance Payment (2) Adjustment Rate ~~109~~108 REMIC III Statement Date: ABN AMRO Acct: 721668.1 ~~948~~940.~~292787451~~288691569 8.~~004095882~~044930523 0.000000000 ~~940~~932.~~288691569~~243761046 2.~~342283203~~322513072 Fixed 0.00 0.00 0.000000000 2.96400000% 0.000000000 52108HYG3 A-1 153,000,000.00 ~~145~~143,~~088~~864,~~796~~169.4881 1,~~224~~230,~~626~~874.6737 0.00 ~~143~~142,~~864~~633,~~169~~295.8144 ~~358~~355,~~369~~344.3350 1000.000000000 0.000000000 0.000000000 1000.000000000 3.020000000 Fixed 0.00 0.00 0.000000000 3.62400000% 0.000000000 52108HYH1 A-2 213,000,000.00 213,000,000.00 0.00 0.00 213,000,000.00 643,260.00 1000.000000000 0.000000000 0.000000000 1000.000000000 3.634166637 Fixed 0.00 0.00 0.000000000 4.36100000% 0.000000000 52108HYJ7 A-3 113,000,000.00 113,000,000.00 0.00 0.00 113,000,000.00 410,660.83 1000.000000000 0.000000000 0.000000000 1000.000000000 3.806666662 Fixed 0.00 0.00 0.000000000 4.56800000% 0.000000000 52108HYK4 A-4 751,262,000.00 751,262,000.00 0.00 0.00 751,262,000.00 2,859,804.01 1000.000000000 0.000000000 0.000000000 1000.000000000 4.008333467 4.810000000% 0.00 0.00 0.000000000 4.81000000% 0.000000000 52108HYL2 B 12,463,000.00 12,463,000.00 0.00 0.00 12,463,000.00 49,955.86 1000.000000000 0.000000000 0.000000000 1000.000000000 4.038333467 4.846000000% 0.00 0.00 0.000000000 4.84600000% 0.000000000 52108HYM0 C 12,463,000.00 12,463,000.00 0.00 0.00 12,463,000.00 50,329.75 1000.000000000 0.000000000 0.000000000 1000.000000000 4.120833177 4.945000000% 0.00 0.00 0.000000000 4.94500000% 0.000000000 52108HYN8 D 16,023,000.00 16,023,000.00 0.00 0.00 16,023,000.00 66,028.11 1000.000000000 0.000000000 0.000000000 1000.000000000 4.149166862 4.979000000% 0.00 0.00 0.000000000 4.97900000% 0.000000000 52108HYP3 E 21,365,000.00 21,365,000.00 0.00 0.00 21,365,000.00 88,646.95 1000.000000000 0.000000000 0.000000000 1000.000000000 4.165833266 4.999000000% 0.00 0.00 0.000000000 4.99900000% 0.000000000 52108HYQ1 F 12,463,000.00 12,463,000.00 0.00 0.00 12,463,000.00 51,918.78 1000.000000000 0.000000000 0.000000000 1000.000000000 4.230833266 5.077000000% 0.00 0.00 0.000000000 5.07700000% 0.000000000 52108HYR9/U51394GB1/52108HYS7 G 24,926,000.00 24,926,000.00 0.00 0.00 24,926,000.00 105,457.75 1000.000000000 0.000000000 0.000000000 1000.000000000 4.~~506629902~~506615605 5.~~407938545~~218967322% 0.00 0.00 0.000000000 5.~~40795580~~40793854% 0.000000000 52108HYT5/U51394GC9/52108HYU2 H 19,584,000.00 19,584,000.00 0.00 0.00 19,584,000.00 88,257.8456 1000.000000000 0.000000000 0.000000000 1000.000000000 4.~~589963493~~589948750 5.~~507938545~~318967322% 0.00 0.00 0.000000000 5.~~50795580~~50793854% 0.000000000 52108HYV0/U51394GD7/52108HYW8 J 14,244,000.00 14,244,000.00 0.00 0.00 14,244,000.00 65,379.4423 1000.000000000 0.000000000 0.000000000 1000.000000000 4.~~714962866~~714948512 5.~~657938545~~468967322% 0.00 0.00 0.000000000 5.~~65795580~~65793854% 0.000000000 52108HYX6/U51394GE5/52108HYY4 K 16,023,000.00 16,023,000.00 0.00 0.00 16,023,000.00 75,547.8562 1000.000000000 0.000000000 0.000000000 1000.000000000 4.097500702 4.917000000% 0.00 0.00 0.000000000 4.91700000% 0.000000000 52108HYZ1/U51394GF2/52108HZA5 L 7,122,000.00 7,122,000.00 0.00 0.00 7,122,000.00 29,182.40 1000.000000000 0.000000000 0.000000000 1000.000000000 4.097500468 4.917000000% 0.00 0.00 0.000000000 4.91700000% 0.000000000 52108HZB3/U51394GG0/52108HZC1 M 5,341,000.00 5,341,000.00 0.00 0.00 5,341,000.00 21,884.75 1000.000000000 0.000000000 0.000000000 1000.000000000 4.097500702 4.917000000% 0.00 0.00 0.000000000 4.91700000% 0.000000000 52108HZD9/U51394GH8/52108HZE7 N 3,561,000.00 3,561,000.00 0.00 0.00 3,561,000.00 14,591.20 1316-~~Aug~~Sep-2004 - 1507:1825 (P635-P689) (c) 2004 LaSalle Bank N.A. Page 2 of 22 Notes: (1) N denotes notional balance not included in total (2) Accrued Interest Plus/Minus Interest Adjustment Minus Deferred Interest equals Interest Payment (3) Estimated. * Denotes Controlling Class Class CUSIP Original Opening Principal Principal Negative Closing Interest Interest Pass-Through Per $ 1000 Per $ 1000 Per $ 1000 Per $ 1000 Per $ 1000 Per $ 1000 Per $ 1000 Next Rate(3) WAC:WAMM: Payment Date:Prior Payment:Next Payment:Record Date: 5.~~857799~~857681% 17-~~Aug~~Sep-0417-~~Aug~~Sep-04 1617-~~Jul~~Aug-04 1718-~~Sep~~Oct-04 3031-~~Jul~~Aug-04 LB-UBS Commercial Mortgage Trust Commercial Mortgage Pass-Through Certificates Series 2004-C1 Face Value (1) Balance Payment Adj. or Loss Amortization Balance Payment (2) Adjustment Rate ~~109~~108 REMIC III Statement Date: ABN AMRO Acct: 721668.1 1000.000000000 0.000000000 0.000000000 1000.000000000 4.097500702 4.917000000% 0.00 0.00 0.000000000 4.91700000% 0.000000000 52108HZF4/U51394GJ4/52108HZG2 P 7,122,000.00 7,122,000.00 0.00 0.00 7,122,000.00 29,182.40 1000.000000000 0.000000000 0.000000000 1000.000000000 4.097500000 4.917000000% 0.00 0.00 0.000000000 4.91700000% 0.000000000 52108HZH0/U51394GK1/52108HZJ6 Q 3,560,000.00 3,560,000.00 0.00 0.00 3,560,000.00 14,587.10 1000.000000000 0.000000000 0.000000000 1000.000000000 4.097501404 4.917000000% 0.00 0.00 0.000000000 4.91700000% 0.000000000 52108HZK3/U51394GL9/52108HZL1 S 1,781,000.00 1,781,000.00 0.00 0.00 1,781,000.00 7,297.65 1000.000000000 0.000000000 0.000000000 1000.000000000 4.~~011451812~~013126798 4.917000000% 0.00 ) (1,~~378~~352.8400 ) (0.~~086048352~~084373366 4.91700000% 0.000000000 52108HZM9/U51394GM7/52108HZN7 T 16,024,014.00 16,024,014.00 0.00 0.00 16,024,014.00 64,~~279~~306.5640 ~~994~~993.~~445655076~~585861884 0.000000000 0.000000000 ~~993~~992.~~585861884~~721682270 0.~~214106274~~212176717 0.~~256255719~~236618696% 0.00 0.00 0.000000000 0.~~25836256~~25625572% 0.000000000 N 52108HZP2/U51394GN5/52108HZQ0 X-CL 1,424,327,014.00 1,~~416,~~415,~~810~~191,183.4881 0.00 0.00 1,~~415~~413,~~191~~960,~~183~~309.8144 ~~304~~302,~~957~~209.3503 1000.000000000 0.000000000 0.000000000 1000.000000000 1.~~035949209~~035932544 1.~~243119055~~054149055% 0.00 0.00 0.000000000 1.~~24313905~~24311905% 0.000000000 N 52108HZR8/U51394GP0/52108HZS6 X-CP 1,233,063,000.00 1,233,063,000.00 0.00 0.00 1,233,063,000.00 1,277,~~390~~370.6409 ~~990~~989.~~679802758~~208917697 0.000000000 0.000000000 ~~989~~987.~~208917697~~730433634 0.~~825566522~~824340746 Fixed 0.00 0.00 0.000000000 1.00000000% 0.000000000 N 52108HZT4/U51394GQ8/52108HZU1 X-ST 229,674,914.00 227,~~534~~196,~~298~~473.5010 0.00 0.00 ~~227~~226,~~196~~856,~~473~~902.1040 189,~~611~~330.9239 0.000000000 0.000000000 0.000000000 0.000000000 0.000000000 0.00 0.00 0.000000000 N/A 0.000000000 9ABSP688 R-III 0.00 0.00 0.00 0.00 0.00 0.00 0.000000000 0.000000000 0.000000000 0.000000000 0.000000000 0.00 0.00 0.000000000 N/A 0.000000000 9ABSP686 R-I 0.00 0.00 0.00 0.00 0.00 0.00 0.000000000 0.000000000 0.000000000 0.000000000 0.000000000 0.00 0.00 0.000000000 N/A 0.000000000 9ABSP687 R-II 0.00 0.00 0.00 0.00 0.00 0.00 Total P&I Payment 0.00 ) (1,~~378~~352.8400 1,424,327,014.00 1,~~416,~~415,~~810~~191,183.4881 8,091,~~208~~406.1473 Total 1,~~415~~413,~~191~~960,~~183~~309.8144 1,~~224~~230,~~626~~874.6737 0.00 6,~~866~~860,~~581~~532.4736 1316-~~Aug~~Sep-2004 - 1507:1825 (P635-P689) (c) 2004 LaSalle Bank N.A. Page 3 of 22 Notes: (1) N denotes notional balance not included in total (2) Accrued Interest Plus/Minus Interest Adjustment Minus Deferred Interest equals Interest Payment (3) Estimated. * Denotes Controlling Class Class CUSIP Original Opening Principal Principal Negative Closing Interest Interest Pass-Through Per $ 1000 Per $ 1000 Per $ 1000 Per $ 1000 Per $ 1000 Per $ 1000 Per $ 1000 Next Rate(3) WAC:WAMM: Payment Date:Prior Payment:Next Payment:Record Date: 5.~~857799~~857681% 17-~~Aug~~Sep-0417-~~Aug~~Sep-04 1617-~~Jul~~Aug-04 1718-~~Sep~~Oct-04 3031-~~Jul~~Aug-04 LB-UBS Commercial Mortgage Trust Commercial Mortgage Pass-Through Certificates Series 2004-C1 Face Value (1) Balance Payment Adj. or Loss Amortization Balance Payment (2) Adjustment Rate ~~109~~108 Grantor Trust Statement Date: ABN AMRO Acct: 721668.1 0.000000000 0.000000000 0.000000000 0.000000000 0.000000000 0.00 0.00 0.000000000 N/A 0.000000000 9ABSP689 V 0.00 0.00 0.00 0.00 0.00 0.00 Total P&I Payment 0.00 0.00 0.00 0.00 0.00 Total 0.00 0.00 0.00 0.00 1316-~~Aug~~Sep-2004 - 1507:1825 (P635-P689) (c) 2004 LaSalle Bank N.A. Page 4 of 22 Notes: (1) N denotes notional balance not included in total (2) Accrued Interest Plus/Minus Interest Adjustment Minus Deferred Interest equals Interest Payment (3) Estimated. * Denotes Controlling Class LB-UBS Commercial Mortgage Trust Payment Date:Prior Payment:Next Payment:Record Date: 17-~~Aug~~Sep-0417-~~Aug~~Sep-04 1617-~~Jul~~Aug-04 1718-~~Sep~~Oct-04 3031-~~Jul~~Aug-04 Commercial Mortgage Pass-Through Certificates Series 2004-C1 ABN AMRO Acct: 721668.1 Statement Date: Cash Reconciliation Summary Current Scheduled Interest Interest Summary Less Deferred Interest Plus Gross Advance Interest Less PPIS Reducing Scheduled Int 6,~~914~~466,~~232~~810.3412 0.000.00 Less ASER Interest Adv Reduction 0.00 Less Other Adjustment 0.00 Total 6,~~914~~905,~~232~~105.3455 Unscheduled Interest:Prepayment Penalties 0.00 Yield Maintenance Penalties 0.00 Other Interest Proceeds 0.00 Total 0.00 Less Fees & Expenses Paid By/To Servicer Less Fee Paid To Servicer Less Fee Strips Paid by Servicer Special Servicing Fees Interest Due Serv on Advances Recoup of Prior Advances Misc. Fees & Expenses Total Unscheduled Fees & ExpensesTotal Interest Due Trust Less Fees & Expenses Paid By/To TrustTrustee FeeFee StripsMisc. FeesInterest Reserve Withholding Plus Interest Reserve DepositTotal Total Interest Due Certs Principal Summary Scheduled Principal:Current Scheduled PrincipalAdvanced Scheduled PrincipalScheduled PrincipalUnscheduled Principal:CurtailmentsPrepayments in FullLiquidation ProceedsRepurchase ProceedsOther Principal ProceedsTotal Unscheduled Principal Remittance Principal Remittance P&I Due Trust Remittance P&I Due Certs Pool Balance Summary Beginning PoolScheduled PrincipalUnscheduled PrincipalDeferred InterestLiquidationsRepurchases Ending Pool Balance Count Principal Interest Prior OutstandingPlus Current PeriodLess Recovered Ending Outstanding Servicing Fee Summary Current Servicing FeesPlus Fees Advanced for PPISLess Reduction for PPISPlus Delinquent Servicing Fees Total Servicing Fees PPIS Summary Gross PPISReduced by PPIEReduced by Shortfalls in FeesReduced by Other Amounts PPIS Reducing ScheduledInterest PPIS Reducing Servicing FeePPIS Due Certificate 0.00 0.00 0.00 ) (1,352.00 ~~) (26~~0.8400 ) (1,~~378~~352.8400 6,~~868~~862,~~174~~124.9244 ) (1,~~593~~592.4709 0.000.000.00 ) (1,~~593~~592.4709 1,~~224~~199,~~626~~966.6331 030,908.0007 1,~~224~~230,~~626~~874.6338 ) (0.~~040~~01 0.000.000.000.~~000~~00 ) (0.0401 1,~~224~~230,~~626~~874.6737 8,092,~~801~~998.5981 8,091,~~208~~406.1272 1,~~416,~~415,~~810~~191,184.9730 103 1,~~224~~230,~~626~~874.6338 -0.0401 0 0.000.00 0 0.00 0 1,~~415~~413,~~191~~960,~~184~~309.3093 103 ~~66,137.86 305,924.54~~ 0.00 0.00 030,908.0007 0438,295.0043 4430,~~678~~908.5907 438,295.43 41,629.11 0.000.~~000.~~00 3,010.27 44,~~678~~639.5937 0.000.000.000.000.000.00 0.00 Advance Summary (Advance Made by Servicer) ) (4441,~~678~~629.5911 6,~~866~~860,~~581~~532.4535 Interest Not Advanced ( Current Period ) 0.00 0438,295.0043 Workout FeesLiquidation Fees 0.000.00 Less Non Recovered ~~) (305,924~~0.5400 ~~) (66,137.86~~ 0.000.00 0.00 0.00 Page 5 of 22 1316-~~Aug~~Sep-2004 - 1507:1825 (P635-P689) (c) 2004 LaSalle Bank N.A. LB-UBS Commercial Mortgage Trust Class Accrued Payment Date:Prior Payment:Next Payment:Record Date: 17-~~Aug~~Sep-0417-~~Aug~~Sep-04 1617-~~Jul~~Aug-04 1718-~~Sep~~Oct-04 3031-~~Jul~~Aug-04 Commercial Mortgage Pass-Through Certificates Series 2004-C1 ABN AMRO Acct: 721668.1 Bond Interest Reconciliation Deductions Allocable Deferred & Prior Prepay- Other Additions Interest Credit Support Original Current(4) Accrual Int. Short- falls Due ment Interest Interest (2) Payment Amount PPIS Interest Certificate Accretion Interest Loss/Exp Interest Penalties Proceeds (1) Interest Shortfalls Certificate Rate Pass Thru Method Days Outstanding Remaining Statement Date: Distributable Current Period (Shortfall)/ Recovery Int Accrual on Prior Shortfall (3) 0.00 0.00 0.0300 0.00 0.00 A-1 30 ~~358~~355,~~369~~344.3350 ~~358~~355,~~369~~344.3350 ~~358~~355,~~369~~344.3350 0.00 13.63% 13.7172% 30/360 2.964000000% 0.00 0.00 0.00 0.00 0.00 0.0400 0.00 0.00 A-2 30 643,260.00 643,260.00 643,260.00 0.00 13.63% 13.7172% 30/360 3.624000000% 0.00 0.00 0.00 0.00 0.00 0.0400 0.00 0.00 A-3 30 410,660.83 410,660.83 410,660.83 0.00 13.63% 13.7172% 30/360 4.361000000% 0.00 0.00 0.00 0.00 0.00 0.0500 0.00 0.00 A-4 30 2,859,804.01 2,859,804.01 2,859,804.01 0.00 13.63% 13.7172% 30/360 4.568000000% 0.00 0.00 0.00 0.00 0.00 0.0500 0.00 0.00 B 30 49,955.86 49,955.86 49,955.86 0.00 12.75% 12.8384% 30/360 4.810000000% 0.00 0.00 0.00 0.00 0.00 0.0500 0.00 0.00 C 30 50,329.75 50,329.75 50,329.75 0.00 11.88% 11.9596% 30/360 4.846000000% 0.00 0.00 0.00 0.00 0.00 0.0500 0.00 0.00 D 30 66,028.11 66,028.11 66,028.11 0.00 10.75% 10.8283% 30/360 4.945000000% 0.00 0.00 0.00 0.00 0.00 0.0500 0.00 0.00 E 30 88,646.95 88,646.95 88,646.95 0.00 9.25% 9.3132% 30/360 4.979000000% 0.00 0.00 0.00 0.00 0.00 0.0500 0.00 0.00 F 30 51,918.78 51,918.78 51,918.78 0.00 8.38% 8.4344% 30/360 4.999000000% 0.00 0.00 0.00 0.00 0.00 0.0500 0.00 0.00 G 30 105,457.75 105,457.75 105,457.75 0.00 6.63% 6.67% 30/360 5.077000000% 0.00 0.00 0.00 0.00 0.00 0.0500 0.00 0.00 H 30 88,257.8456 88,257.8456 88,257.8456 0.00 5.25% 5.2829% 30/360 5.~~407955796~~407938545% 0.00 0.00 0.00 0.00 0.00 0.0600 0.00 0.00 J 30 65,379.4423 65,379.4423 65,379.4423 0.00 4.25% 4.28% 30/360 5.~~507955796~~507938545% 0.00 0.00 0.00 0.00 0.00 0.0600 0.00 0.00 K 30 75,547.8562 75,547.8562 75,547.8562 0.00 3.13% 3.15% 30/360 5.~~657955796~~657938545% 0.00 0.00 0.00 0.00 0.00 0.0500 0.00 0.00 L 30 29,182.40 29,182.40 29,182.40 0.00 2.63% 2.64% 30/360 4.917000000% 0.00 0.00 0.00 0.00 0.00 0.0500 0.00 0.00 M 30 21,884.75 21,884.75 21,884.75 0.00 2.25% 2.2627% 30/360 4.917000000% 0.00 0.00 0.00 0.00 0.00 0.0500 0.00 0.00 N 30 14,591.20 14,591.20 14,591.20 0.00 2.00% 2.01% 30/360 4.917000000% 0.00 0.00 0.00 0.00 0.00 0.0500 0.00 0.00 P 30 29,182.40 29,182.40 29,182.40 0.00 1.50% 1.51% 30/360 4.917000000% 0.00 0.00 0.00 0.00 0.00 0.0500 0.00 0.00 Q 30 14,587.10 14,587.10 14,587.10 0.00 1.25% 1.26% 30/360 4.917000000% 0.00 0.00 0.00 0.00 0.00 0.0500 0.00 0.00 S 30 7,297.65 7,297.65 7,297.65 0.00 1.13% 1.13% 30/360 4.917000000% 0.00 0.00 0.00 0.00 0.00 0.0500 0.00 0.00 T 30 65,658.40 6567,~~735~~114.1600 64,~~279~~306.5640 12,~~455~~807.60 0.00% 0.00% 30/360 4.917000000% ) (1,~~378~~352.8400 761,455.7660 0.00 0.00 0.00 0.00 0.00 0.00 X-CL 30 ~~304~~302,~~957~~209.3503 ~~304~~302,~~957~~209.3503 ~~304~~302,~~957~~209.3503 0.00 NA NA 30/360 0.~~258362561~~256255719% 0.00 0.00 0.00 0.00 0.00 0.0100 0.00 0.00 X-CP 30 1,277,~~390~~370.6409 1,277,~~390~~370.6409 1,277,~~390~~370.6409 0.00 NA NA 30/360 1.~~243139055~~243119055% 0.00 0.00 0.00 0.00 0.00 0.0100 0.00 0.00 X-ST 30 189,~~611~~330.9239 189,~~611~~330.9239 189,~~611~~330.9239 0.00 NA NA 30/360 1.000000000% 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 V 30 0.00 0.00 0.00 0.00 NA NA 0.000000000% 0.00 0.00 0.00 0.00 0.00 0.9900 0.00 0.00 6,~~867~~861,~~960~~884.3136 6,~~868~~863,~~037~~339.0796 6,~~866~~860,~~581~~532.4736 12,~~455~~807.60 ) (1,~~378~~352.8400 761,455.7660 0.00 (2) Accrued - Deductions + Additions Interest (3) Includes interest accrued on outstanding Interest Shortfalls and/or Loss Allocations. Where applicable. 1316-~~Aug~~Sep-2004 - 1507:1825 (P635-P689) (c) 2004 LaSalle Bank N.A. Page 6 of 22 (1) Other Interest Proceeds are additional interest amounts specifically allocated to the bond(s) and used in determining the bonds Distributable Interest. (4) Determined as follows: (A) the ending balance of all the classes less (B) the sum of (i) the ending balance of the class and (ii) the ending balance of all classes which are not subordinate to the class divided by (A). LB-UBS Commercial Mortgage Trust Payment Date:Prior Payment:Next Payment:Record Date: 17-~~Aug~~Sep-0417-~~Aug~~Sep-04 1617-~~Jul~~Aug-04 1718-~~Sep~~Oct-04 3031-~~Jul~~Aug-04 Commercial Mortgage Pass-Through Certificates Series 2004-C1 ABN AMRO Acct: 721668.1 Interest Adjustments Summary Statement Date: 0.00 0.00 0.00 0.00 Special Servicing Fees Workout Fees Liquidation Fees Legal Fees 1,352.00 0.00 Misc. Fees & Expenses Paid by/to Servicer Interest Paid to Servicer on Outstanding Advances 260.8400 0.00 ASER Interest Advance Reduction Interest Not Advanced (Current Period) Recoup of Prior Advances by Servicer 0.00 0.00 Servicing Fees Paid Servicer on Loans Not Advanced Misc. Fees & Expenses Paid by Trust 0.00 0.00 0.00 Shortfall Due to Rate Modification Total Shortfall Allocated to the Bonds Total Interest Adjustment to the Bonds 1,~~378~~352.8400 Shortfall Allocated to the Bonds: Excess Allocated to the Bonds: Other Interest Proceeds Due the Bonds Yield Maintenance Penalties Due the Bonds Prepayment Penalties Due the Bonds Recovered ASER Interest Due the Bonds Recovered Interest Due the Bonds Less Total Shortfall Allocated to the Bonds Total Excess Allocated to the Bonds 0.00 0.00 Total Excess Allocated to the Bonds ) (1,~~378~~352.8400 ) (1,~~378~~352.8400 Aggregate Interest Adjustment Allocated to the Bonds 0.00 0.00 0.00 0.00 Prepayment Interest Excess Due the Bonds 0.00 ARD Excess Interest 0.00 ~~Other Interest Loss~~ 0.00 0.00 Net Prepayment Int. Shortfalls Allocated to the Bonds Other Interest Loss Page 7 of 22 1316-~~Aug~~Sep-2004 - 1507:1825 (P635-P689) (c) 2004 LaSalle Bank N.A. LB-UBS Commercial Mortgage Trust Payment Date:Prior Payment:Next Payment:Record Date: 17-~~Aug~~Sep-0417-~~Aug~~Sep-04 1617-~~Jul~~Aug-04 1718-~~Sep~~Oct-04 3031-~~Jul~~Aug-04 Commercial Mortgage Pass-Through Certificates Series 2004-C1 Asset-Backed Facts ~ 15 Month Historical Loan Status Summary Distribution Date Delinq 1 Month Delinq 2 Months Delinq 3+ Months Foreclosure REO Modifications Specially Serviced Bankruptcy # Balance # Balance # Balance # Balance # Balance # Balance # Balance # Balance Delinquency Aging Categories Special Event Categories (1) Statement Date: ABN AMRO Acct: 721668.1 0.00% 0.00% 0.00% 0.00% 0 0.00% 0 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 17-Sep-04 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0.00% 0.00% 0.00% 0.00% 0 0.00% 0 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 17-Aug-04 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0.00% 0.00% 0.00% 0.00% 0 0.00% 0 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 16-Jul-04 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0.00% 0.00% 0.00% 0.00% 0 0.00% 0 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 17-Jun-04 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0.00% 0.00% 0.00% 0.00% 0 0.00% 0 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 17-May-04 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0.00% 0.00% 0.00% 0.00% 0 0.00% 0 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 16-Apr-04 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0.00% 0.00% 0.00% 0.00% 0 0.00% 0 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 17-Mar-04 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0.00% 0.00% 0.00% 0.00% 0 0.00% 0 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 18-Feb-04 0 0 0 0 0 0 0 0 0 0 0 0 0 0 (1) Note: Modification, Specially Serviced & Bankruptcy Totals are Included in the Appropriate Delinquency Aging Category Page 8 of 22 1316-~~Aug~~Sep-2004 - 1507:1825 (P635-P689) (c) 2004 LaSalle Bank N.A. LB-UBS Commercial Mortgage Trust Payment Date:Prior Payment:Next Payment:Record Date: 17-~~Aug~~Sep-0417-~~Aug~~Sep-04 1617-~~Jul~~Aug-04 1718-~~Sep~~Oct-04 3031-~~Jul~~Aug-04 Commercial Mortgage Pass-Through Certificates Asset-Backed Facts ~ 15 Month Historical Payoff/Loss Summary Distribution Date Ending Pool (1) Payoffs(2) Penalties Appraisal Reduct. (2) Liquidations (2) Realized Losses (2) Remaining Term Curr Weighted Avg. # Balance # Balance # Amount # Balance # Balance # Amount Life Coupon Remit Statement Date: Amort ABN AMRO Acct: 721668.1 Series 2004-C1 17-Sep-04 103 100.00% 1,413,960,310 99.27% 0.00% 0.00% 0 0.00% 0 0.00% 0 0.00% 0 0.00% 0 0.00% 0 0.00% 108 107 5.86% 5.82% 0 0 0 0 17-Aug-04 103 100.00% 1,415,191,184 99.36% 0.00% 0.00% 0 0.00% 0 0.00% 0 0.00% 0 0.00% 0 0.00% 0 0.00% 109 108 5.86% 5.82% 0 0 0 0 16-Jul-04 103 100.00% 1,416,415,811 99.44% 0.00% 0.00% 0 0.00% 0 0.00% 0 0.00% 0 0.00% 0 0.00% 0 0.00% 110 109 5.67% 5.63% 0 0 0 0 17-Jun-04 103 100.00% 1,417,811,448 99.54% 0.00% 0.00% 0 0.00% 0 0.00% 0 0.00% 0 0.00% 0 0.00% 0 0.00% 111 110 5.86% 5.82% 0 0 0 0 17-May-04 103 100.00% 1,419,022,773 99.63% 0.00% 0.00% 0 0.00% 0 0.00% 0 0.00% 0 0.00% 0 0.00% 0 0.00% 112 111 5.67% 5.63% 0 0 0 0 16-Apr-04 103 100.00% 1,420,405,601 99.72% 0.00% 0.00% 0 0.00% 0 0.00% 0 0.00% 0 0.00% 0 0.00% 0 0.00% 113 112 5.86% 5.82% 0 0 0 0 17-Mar-04 103 100.00% 1,421,603,757 99.81% 0.00% 0.00% 0 0.00% 0 0.00% 0 0.00% 0 0.00% 0 0.00% 0 0.00% 114 113 5.67% 5.63% 0 0 0 0 18-Feb-04 103 100.00% 1,423,152,035 99.92% 0.00% 0.00% 0 0.00% 0 0.00% 0 0.00% 0 0.00% 0 0.00% 0 0.00% 115 114 5.67% 5.63% 0 0 0 0 (1) Percentage based on pool as of cutoff. (2) Percentage based on pool as of beginning of period. Page 9 of 22 1316-~~Aug~~Sep-2004 - 1507:1825 (P635-P689) (c) 2004 LaSalle Bank N.A. LB-UBS Commercial Mortgage Trust Payment Date:Prior Payment:Next Payment:Record Date: 17-~~Aug~~Sep-0417-~~Aug~~Sep-04 1617-~~Jul~~Aug-04 1718-~~Sep~~Oct-04 3031-~~Jul~~Aug-04 Commercial Mortgage Pass-Through Certificates Series 2004-C1 ABN AMRO Acct: 721668.1 Loan Level Detail Disclosure Control # Group Property Type Maturity Date PFY DSCR OperatingStatement Date Geo. Location Ending Principal Balance NoteRate Scheduled P&I Prepayment Amount Prepayment Date Loan Status Code (1) Statement Date: CT 6.00000% 11-Oct-16 LUBS04CB Office 0.00 ~~227~~226,~~196~~856,~~473~~902 1,513,419 1 5.24679% 8-Jan-14 LUBS04CA Office 0.00 200,000,000 903,614 2 CA 4.65000% 11-May-13 LUBS04CA Office 0.00 128,~~949~~807,~~051~~763 657,~~490~~621 3 PA 5.36040% 11-Sep-08 LUBS04CA Office 0.00 60,000,000 276,954 B 4 IL 4.57500% 11-Dec-08 LUBS04CA Retail 0.00 56,~~428~~359,~~921~~871 291,356 5 NJ 6.65000% 11-Dec-13 LUBS04CA Industrial 0.00 45,~~953~~919,~~522~~761 296,909 6 OH 6.20000% 11-Nov-13 LUBS04CA Retail 0.00 39,~~675~~642,~~842~~679 244,988 7 6.14000% 11-Jan-14 LUBS04CA Office 0.00 29,~~808~~783,~~811~~842 182,574 8 HI 5.36000% 11-Jan-09 LUBS04CA Office 0.00 29,000,000 133,851 9 KS 5.82000% 11-Nov-13 LUBS04CA Retail 0.00 2221,~~004~~984,~~650~~388 130,542 10 CA 5.57500% 11-Dec-13 LUBS04CA Mobile home park 0.00 20,000,000 96,014 11 TX 5.24250% 1-Nov-08 LUBS04CA Retail 0.00 19,~~058~~038,~~812~~641 106,210 12 NY 5.69000% 11-Sep-15 LUBS04CA Retail 0.00 18,~~542~~524,~~025~~169 108,706 B 13 NV 6.17000% 11-Jan-14 LUBS04CA Office 0.00 17,~~389~~374,~~202~~750 106,842 14 MD 5.64000% 11-Jan-09 LUBS04CA Office 0.00 16,~~382~~367,~~934~~360 95,140 15 MI 5.70000% 11-Nov-13 LUBS04CA Mobile home park 0.00 16,480,000 80,889 16 CA 6.21000% 11-Apr-13 LUBS04CA Office 0.00 16,~~261~~246,~~048~~840 101,164 17 TN 5.94000% 11-Jan-14 LUBS04CA Other 0.00 14,~~753~~733,~~247~~254 95,455 18 MT 7.25000% 1-Jan-16 LUBS04CA Retail 0.00 13,~~961~~896,~~287~~848 150,171 19 TX 6.32000% 11-Oct-18 LUBS04CA Retail 0.00 13,~~667~~650,~~602~~020 91,964 20 CA 6.74000% 11-Feb-14 LUBS04CA Retail 0.00 13,~~682~~673,~~966~~289 89,091 21 TX 6.22300% 11-Oct-15 LUBS04CA Retail 0.00 13,~~652~~641,~~654~~241 84,573 22 TX 6.36000% 11-Oct-13 LUBS04CA Office 0.00 12,~~856~~842,~~405~~751 84,064 23 VA 6.01000% 11-Jan-14 LUBS04CA Retail 0.00 12,~~517~~506,~~399~~555 75,624 24 TX 5.39000% 11-Oct-10 LUBS04CA Multifamily 0.00 12,~~465~~453,~~913~~097 70,674 25 1316-~~Aug~~Sep-2004 - 1507:1825 (P635-P689) (c) 2004 LaSalle Bank N.A. Page 10 of 22 * NOI and DSCR, if available and reportable under the terms of the trust agreement, are based on information obtained from the related borrower, and no other party to the agreement shall be held liable for the accuracy or methodology used to determine such figures. (1) Legend: A. In Grace Period B. Late Payment but < 1 month delinq 1. Delinquent 1 month2. Delinquent 2 months 3. Delinquent 3+ months 4. Performing Matured Balloon 7. Foreclosure 9. REO 5. Non Performing Matured Ballon LB-UBS Commercial Mortgage Trust Payment Date:Prior Payment:Next Payment:Record Date: 17-~~Aug~~Sep-0417-~~Aug~~Sep-04 1617-~~Jul~~Aug-04 1718-~~Sep~~Oct-04 3031-~~Jul~~Aug-04 Commercial Mortgage Pass-Through Certificates Series 2004-C1 ABN AMRO Acct: 721668.1 Loan Level Detail Disclosure Control # Group Property Type Maturity Date PFY DSCR OperatingStatement Date Geo. Location Ending Principal Balance NoteRate Scheduled P&I Prepayment Amount Prepayment Date Loan Status Code (1) Statement Date: AZ 5.36400% 11-Oct-13 LUBS04CA Retail 0.00 11,~~673~~661,~~738~~663 65,996 26 TX 5.32000% 11-Sep-08 LUBS04CA Multifamily 0.00 11,~~658~~646,~~594~~331 65,673 27 WA 5.45000% 11-Oct-13 LUBS04CA Retail 0.00 11,~~379~~367,~~157~~625 64,935 28 OR 5.57000% 11-Oct-10 LUBS04CA Retail 0.00 10,~~258~~248,~~823~~721 59,307 29 WA 6.06000% 11-Sep-13 LUBS04CA Retail 0.00 9,~~009~~001,~~695~~772 54,938 30 CA 5.67000% 11-Nov-13 LUBS04CA Retail 0.00 8,~~274~~266,~~142~~236 48,305 31 CA 5.26000% 11-Oct-13 LUBS04CA Retail 0.00 8,~~120~~107,~~208~~501 49,487 32 NJ 5.97000% 11-Dec-08 LUBS04CA Retail 0.00 8,~~138~~131,~~681~~515 49,005 33 NV 5.16000% 11-Nov-13 LUBS04CA Retail 0.00 8,~~117~~108,~~171~~413 44,825 34 FL 6.09000% 11-Nov-13 LUBS04CA Industrial 0.00 7,~~933~~926,~~589~~766 48,428 35 CA 5.79000% 11-Nov-13 LUBS04CA Multifamily 0.00 7,~~780~~773,~~480~~262 46,010 36 SC 5.81000% 11-Oct-13 LUBS04CA Multifamily 0.00 7,~~724~~716,~~118~~946 45,816 37 PA 6.26000% 11-Nov-13 LUBS04CA Office 0.00 7,~~291~~285,218 45,303 38 MI 6.27000% 11-Sep-13 LUBS04CA Multifamily 0.00 7,~~228~~222,~~568~~554 45,042 39 AL 6.58000% 11-Nov-17 LUBS04CA Industrial 0.00 7,~~196~~190,~~017~~584 46,207 40 TX 5.81000% 11-Oct-13 LUBS04CA Multifamily 0.00 7,~~055~~049,~~684~~133 41,852 B 41 CO 6.05000% 11-Nov-13 LUBS04CA Retail 0.00 6,~~718~~712,~~266~~429 40,838 42 VA 6.44000% 11-Sep-13 LUBS04CA Office 0.00 6,~~537~~532,~~812~~612 41,456 43 NY 5.95000% 11-Dec-13 LUBS04CA Retail 0.00 6,~~054~~048,~~183~~826 36,377 44 FL 5.50000% 11-Oct-10 LUBS04CA Retail 0.00 6,000,000 28,417 45 TX 6.01000% 11-Nov-13 LUBS04CA Office 0.00 5,~~304~~300,~~809~~152 32,110 46 TX 6.34000% 11-Sep-13 LUBS04CA Retail 0.00 5,~~248~~244,~~936~~649 32,944 47 CA 6.19000% 11-Nov-13 LUBS04CA Retail 0.00 5,~~199~~194,~~960~~751 32,926 48 VT 4.80000% 11-Sep-08 LUBS04CA Retail 0.00 4,~~933~~927,~~419~~578 26,233 49 OH 5.76000% 11-Aug-13 LUBS04CA Retail 0.00 4,~~841~~837,~~891~~280 28,626 50 1316-~~Aug~~Sep-2004 - 1507:1825 (P635-P689) (c) 2004 LaSalle Bank N.A. Page 11 of 22 * NOI and DSCR, if available and reportable under the terms of the trust agreement, are based on information obtained from the related borrower, and no other party to the agreement shall be held liable for the accuracy or methodology used to determine such figures. (1) Legend: A. In Grace Period B. Late Payment but < 1 month delinq 1. Delinquent 1 month2. Delinquent 2 months 3. Delinquent 3+ months 4. Performing Matured Balloon 7. Foreclosure 9. REO 5. Non Performing Matured Ballon LB-UBS Commercial Mortgage Trust Payment Date:Prior Payment:Next Payment:Record Date: 17-~~Aug~~Sep-0417-~~Aug~~Sep-04 1617-~~Jul~~Aug-04 1718-~~Sep~~Oct-04 3031-~~Jul~~Aug-04 Commercial Mortgage Pass-Through Certificates Series 2004-C1 ABN AMRO Acct: 721668.1 Loan Level Detail Disclosure Control # Group Property Type Maturity Date PFY DSCR OperatingStatement Date Geo. Location Ending Principal Balance NoteRate Scheduled P&I Prepayment Amount Prepayment Date Loan Status Code (1) Statement Date: WI 5.86000% 11-Dec-13 LUBS04CA Industrial 0.00 4,~~842~~838,~~616~~232 28,820 51 GA 6.05000% 11-Nov-13 LUBS04CA Multifamily 0.00 4,~~759~~755,~~805~~669 28,933 B 52 FL 5.69000% 11-Nov-13 LUBS04CA Industrial 0.00 4,~~756~~752,~~577~~054 27,829 53 AL 6.38000% 11-Oct-15 LUBS04CA Retail 0.00 4,~~758~~755,~~850~~033 29,961 54 PA 5.77000% 11-Jan-29 LUBS04CA Retail 0.00 4,~~513~~507,~~797~~482 28,742 55 FL 6.05000% 11-Sep-13 LUBS04CA Mobile home park 0.00 4,~~513~~509,~~177~~204 27,486 56 TX 6.01000% 11-Oct-13 LUBS04CA Office 0.00 4,~~210~~206,~~423~~705 25,508 57 TX 6.00000% 11-Oct-13 LUBS04CA Retail 0.00 3,~~962~~959,~~669~~161 23,982 58 TX 6.12000% 11-Jan-14 LUBS04CA Retail 0.00 3,~~859~~855,~~139~~890 23,587 59 NV 5.29000% 11-Sep-13 LUBS04CA Industrial 0.00 3,~~852~~848,~~974~~893 21,633 60 DC 6.29000% 11-Jan-14 LUBS04CA Office 0.00 3,~~677~~674,~~184~~223 22,878 61 SC 5.59500% 11-Dec-13 LUBS04CA Retail 0.00 3,~~669~~666,~~982~~434 21,229 62 SC 5.99000% 11-Sep-13 LUBS04CA Multifamily 0.00 3,~~463~~460,~~591~~495 20,962 63 TX 6.10000% 11-Sep-13 LUBS04CA Multifamily 0.82 3,~~370~~367,~~415~~485 20,634 64 SC 5.59500% 11-Dec-13 LUBS04CA Retail 0.00 3,~~332~~329,~~740~~518 19,278 65 SC 5.59500% 11-Dec-13 LUBS04CA Retail 0.00 3,~~332~~329,~~740~~518 19,278 66 TX 6.14000% 11-Nov-13 LUBS04CA Retail 0.00 3,~~332~~329,~~410~~581 20,448 67 TX 6.31000% 11-Nov-13 LUBS04CA Retail 0.00 3,~~313~~310,~~582~~891 20,695 68 TX 6.37500% 11-Jan-14 LUBS04CA Self storage 0.00 3,~~220~~216,~~263~~250 21,691 69 AZ 5.69000% 11-Nov-10 LUBS04CA Retail 0.00 3,~~200~~197,~~780~~737 18,726 70 MO 6.33000% 11-Oct-13 LUBS04CA Retail 0.00 3,~~182~~178,~~602~~515 21,434 71 CA 6.17000% 11-Dec-13 LUBS04CA Retail 0.00 3,~~072~~070,~~862~~292 18,896 72 NJ 6.23000% 11-Nov-28 LUBS04CA Retail 0.00 2,~~990~~986,~~383~~495 19,931 73 FL 6.25000% 11-Jan-14 LUBS04CA Retail 0.00 2,~~981~~978,~~337~~910 18,472 74 SC 5.59500% 11-Dec-13 LUBS04CA Retail 0.00 2,~~975~~972,~~661~~784 17,213 75 1316-~~Aug~~Sep-2004 - 1507:1825 (P635-P689) (c) 2004 LaSalle Bank N.A. Page 12 of 22 * NOI and DSCR, if available and reportable under the terms of the trust agreement, are based on information obtained from the related borrower, and no other party to the agreement shall be held liable for the accuracy or methodology used to determine such figures. (1) Legend: A. In Grace Period B. Late Payment but < 1 month delinq 1. Delinquent 1 month2. Delinquent 2 months 3. Delinquent 3+ months 4. Performing Matured Balloon 7. Foreclosure 9. REO 5. Non Performing Matured Ballon LB-UBS Commercial Mortgage Trust Payment Date:Prior Payment:Next Payment:Record Date: 17-~~Aug~~Sep-0417-~~Aug~~Sep-04 1617-~~Jul~~Aug-04 1718-~~Sep~~Oct-04 3031-~~Jul~~Aug-04 Commercial Mortgage Pass-Through Certificates Series 2004-C1 ABN AMRO Acct: 721668.1 Loan Level Detail Disclosure Control # Group Property Type Maturity Date PFY DSCR OperatingStatement Date Geo. Location Ending Principal Balance NoteRate Scheduled P&I Prepayment Amount Prepayment Date Loan Status Code (1) Statement Date: FL 5.34000% 11-Oct-08 LUBS04CA Multifamily 0.00 2,~~868~~865,~~813~~829 16,176 76 GA 5.92000% 11-Nov-13 LUBS04CA Multifamily 0.00 2,~~825~~822,~~454~~916 16,941 77 NC 6.13000% 11-Nov-13 LUBS04CA Retail 0.00 2,~~776~~774,~~958~~595 17,022 78 IL 6.31000% 11-Nov-13 LUBS04CA Retail 0.00 2,~~703~~701,~~446~~251 16,885 79 NJ 6.25000% 11-Jan-14 LUBS04CA Office 0.00 2,~~702~~699,~~085~~886 16,741 80 FL 6.00000% 11-Jan-14 LUBS04CA Retail 0.00 2,~~682~~679,~~261~~932 16,188 81 TX 5.93000% 11-Oct-13 LUBS04CA Multifamily 0.00 2,~~624~~622,~~885~~520 15,769 B 82 CA 4.81000% 11-Nov-08 LUBS04CA Multifamily 1.00 2,~~571~~568,~~812~~807 13,657 83 CA 5.76000% 11-Oct-13 LUBS04CA Industrial 0.00 2,~~544~~542,~~726~~333 15,014 84 NC 6.14000% 11-Dec-13 LUBS04CA Retail 0.00 2,~~472~~469,~~973~~726 16,322 85 WA 5.67000% 11-Nov-13 LUBS04CA Mobile home park 0.00 2,~~477~~474,~~288~~921 14,463 86 NY 6.33000% 11-Dec-13 LUBS04CA Multifamily 0.00 2,~~284~~282,~~131~~300 14,281 87 FL 5.34000% 11-Oct-08 LUBS04CA Multifamily 0.00 2,~~275~~272,~~265~~899 12,829 88 TX 6.16000% 11-Oct-13 LUBS04CA Retail 0.00 2,~~229~~227,~~733~~838 13,722 89 NY 6.41000% 11-Nov-13 LUBS04CA Multifamily 0.00 2,~~182~~181,~~981~~255 13,776 90 PA 6.23000% 11-Nov-28 LUBS04CA Retail 0.00 2,~~173~~170,~~387~~561 14,486 91 TX 6.11000% 11-Nov-13 LUBS04CA Office 0.00 2,~~123~~120,~~458~~633 13,997 92 AZ 6.34000% 11-Dec-13 LUBS04CA Retail 0.00 2,~~028~~026,~~592~~029 13,637 93 FL 6.75000% 11-Sep-13 LUBS04CA Industrial 0.00 1,~~987~~985,~~389~~936 13,004 94 CA 6.44000% 11-Oct-13 LUBS04CA Self storage 0.00 1,~~974~~971,~~204~~723 13,429 95 PA 6.34000% 11-Jan-14 LUBS04CA Multifamily 0.00 1,~~948~~946,~~047~~499 12,183 96 NJ 6.51000% 11-Oct-13 LUBS04CA Retail 0.00 1,~~884~~882,~~188~~728 12,022 97 TX 6.37500% 11-Jan-14 LUBS04CA Self storage 0.00 1,~~684~~682,~~446~~346 11,346 98 AZ 6.44000% 11-Sep-13 LUBS04CA Retail 0.00 1,~~659~~657,~~217~~898 10,521 99 TX 5.85000% 11-Nov-13 LUBS04CA Multifamily 0.97 1,~~610~~609,~~792~~320 9,587 100 1316-~~Aug~~Sep-2004 - 1507:1825 (P635-P689) (c) 2004 LaSalle Bank N.A. Page 13 of 22 * NOI and DSCR, if available and reportable under the terms of the trust agreement, are based on information obtained from the related borrower, and no other party to the agreement shall be held liable for the accuracy or methodology used to determine such figures. (1) Legend: A. In Grace Period B. Late Payment but < 1 month delinq 1. Delinquent 1 month2. Delinquent 2 months 3. Delinquent 3+ months 4. Performing Matured Balloon 7. Foreclosure 9. REO 5. Non Performing Matured Ballon LB-UBS Commercial Mortgage Trust Payment Date:Prior Payment:Next Payment:Record Date: 17-~~Aug~~Sep-0417-~~Aug~~Sep-04 1617-~~Jul~~Aug-04 1718-~~Sep~~Oct-04 3031-~~Jul~~Aug-04 Commercial Mortgage Pass-Through Certificates Series 2004-C1 ABN AMRO Acct: 721668.1 Loan Level Detail Disclosure Control # Group Property Type Maturity Date PFY DSCR OperatingStatement Date Geo. Location Ending Principal Balance NoteRate Scheduled P&I Prepayment Amount Prepayment Date Loan Status Code (1) Statement Date: SC 5.59500% 11-Dec-13 LUBS04CA Retail 0.00 1,~~517~~516,~~587~~120 8,779 101 FL 6.47000% 11-Sep-13 LUBS04CA Self storage 0.00 1,~~485~~484,~~961~~788 9,451 102 TX 6.03000% 11-Aug-08 LUBS04CA Office 0.71 1,~~376~~374,~~628~~730 9,046 103 1,~~415~~413,~~191~~960,~~184~~310 8,138,~~859~~990 0 1316-~~Aug~~Sep-2004 - 1507:1825 (P635-P689) (c) 2004 LaSalle Bank N.A. Page 14 of 22 * NOI and DSCR, if available and reportable under the terms of the trust agreement, are based on information obtained from the related borrower, and no other party to the agreement shall be held liable for the accuracy or methodology used to determine such figures. (1) Legend: A. In Grace Period B. Late Payment but < 1 month delinq 1. Delinquent 1 month2. Delinquent 2 months 3. Delinquent 3+ months 4. Performing Matured Balloon 7. Foreclosure 9. REO 5. Non Performing Matured Ballon LB-UBS Commercial Mortgage Trust Payment Date:Prior Payment:Next Payment:Record Date: 17-~~Aug~~Sep-0417-~~Aug~~Sep-04 1617-~~Jul~~Aug-04 1718-~~Sep~~Oct-04 3031-~~Jul~~Aug-04 Commercial Mortgage Pass-Through Certificates Series 2004-C1 ABN AMRO Acct: 721668.1 Realized Loss Detail Period Disclosure Control # Appraisal Date Appraisal Value BeginningScheduled Balance Gross Proceeds Gross Proceeds as a % of Sched. Balance Aggregate Liquidation Expenses * Net Liquidation Proceeds Net Proceeds as a % of Sched. Balance Realized Loss Statement Date: Current TotalCumulative 1316-~~Aug~~Sep-2004 - 1507:1825 (P635-P689) (c) 2004 LaSalle Bank N.A. Page 15 of 22 * Aggregate liquidation expenses also include outstanding P&I advances and unpaid servicing fees, unpaid trustee fees, etc.. LB-UBS Commercial Mortgage Trust Payment Date:Prior Payment:Next Payment:Record Date: 17-~~Aug~~Sep-0417-~~Aug~~Sep-04 1617-~~Jul~~Aug-04 1718-~~Sep~~Oct-04 3031-~~Jul~~Aug-04 Commercial Mortgage Pass-Through Certificates Series 2004-C1 Historical Collateral Level REO Report Property Type Statement Date: State Actual Balance Scheduled Balance Recent Appraisal Value Appraisal Reduction Amount Date Liquidated Liquidation Proceeds Liquidation Expenses Realized Loss Disclosure Control # REO Date City Appraisal Date ABN AMRO Acct: 721668.1 1316-~~Aug~~Sep-2004 - 1507:1825 (P635-P689) (c) 2004 LaSalle Bank N.A. Page 16 of 22 LB-UBS Commercial Mortgage Trust Payment Date:Prior Payment:Next Payment:Record Date: 17-~~Aug~~Sep-0417-~~Aug~~Sep-04 1617-~~Jul~~Aug-04 1718-~~Sep~~Oct-04 3031-~~Jul~~Aug-04 Commercial Mortgage Pass-Through Certificates Series 2004-C1 ABN AMRO Acct: 721668.1 ASER Detail Period Disclosure Control # Appraisal Date Appraisal Value BeginningScheduled Balance ASER Prin Balance ASER Prin ADV Reduction Amount Current Appraisal Reduction Date Current Appraisal Reduction Amount Cumulative ASER Amount Statement Date: ASER Int ADV Reduction Amount 1316-~~Aug~~Sep-2004 - 1507:1825 (P635-P689) (c) 2004 LaSalle Bank N.A. Page 17 of 22 LB-UBS Commercial Mortgage Trust Payment Date:Prior Payment:Next Payment:Record Date: 17-~~Aug~~Sep-0417-~~Aug~~Sep-04 1617-~~Jul~~Aug-04 1718-~~Sep~~Oct-04 3031-~~Jul~~Aug-04 Commercial Mortgage Pass-Through Certificates Series 2004-C1 ABN AMRO Acct: 721668.1 Modified Loan Detail Disclosure Control # Modification Date Cutoff Maturity Date Modification Description Modified Maturity Date Statement Date: 1316-~~Aug~~Sep-2004 - 1507:1825 (P635-P689) (c) 2004 LaSalle Bank N.A. Page 18 of 22 LB-UBS Commercial Mortgage Trust Payment Date:Prior Payment:Next Payment:Record Date: 17-~~Aug~~Sep-0417-~~Aug~~Sep-04 1617-~~Jul~~Aug-04 1718-~~Sep~~Oct-04 3031-~~Jul~~Aug-04 Commercial Mortgage Pass-Through Certificates Series 2004-C1 ABN AMRO Acct: 721668.1 Specially Serviced (Part I) ~ Loan Detail (End of Period) Disclosure Control # Servicing Xfer Date Balance NoteRate Maturity Date Remaining Property Type Geo. Location NOI DSCR NOIDate Schedule Actual Life Statement Date: Loan Status Code(1) 1316-~~Aug~~Sep-2004 - 1507:1825 (P635-P689) (c) 2004 LaSalle Bank N.A. Page 19 of 22 (1) Legend: A. P&I Adv - in Grace PeriodB. P&I Adv - < one month delinq 1. P&I Adv - delinquent 1 month2. P&I Adv - delinquent 2 months 3. P&I Adv - delinquent 3+ months4. Mat. Balloon/Assumed P&I 7. Foreclosure 9. REO 5. Non Performing Mat. Balloon LB-UBS Commercial Mortgage Trust Payment Date:Prior Payment:Next Payment:Record Date: 17-~~Aug~~Sep-0417-~~Aug~~Sep-04 1617-~~Jul~~Aug-04 1718-~~Sep~~Oct-04 3031-~~Jul~~Aug-04 Commercial Mortgage Pass-Through Certificates Series 2004-C1 ABN AMRO Acct: 721668.1 Maturity Extension Summary Statement Date: Loans which have had their Maturity Dates extended Stated Principal Balance outstanding:Weighted Average Extension Period: Loans in the process of having their Maturity Dates extended Stated Principal Balance outstanding:Weighted Average Extension Period: Loans in the process of having their Maturity Dates further extended Cutoff Principal Balance:Weighted Average Extension Period: Loans paid-off that did experience Maturity Date extensions Cutoff Principal Balance:Weighted Average Extension Period: 0 0.00 0 0.00 Number of Loans: 0 Number of Loans: 0 0 0.00 0 Number of Loans: Number of Loans: 0 0.00 0 Loans paid-off that did not experience Maturity Date extensions Number of Loans:Cutoff Principal Balance: 0 0.00 Page 20 of 22 1316-~~Aug~~Sep-2004 - 1507:1825 (P635-P689) (c) 2004 LaSalle Bank N.A. LB-UBS Commercial Mortgage Trust Payment Date:Prior Payment:Next Payment:Record Date: 17-~~Aug~~Sep-0417-~~Aug~~Sep-04 1617-~~Jul~~Aug-04 1718-~~Sep~~Oct-04 3031-~~Jul~~Aug-04 Commercial Mortgage Pass-Through Certificates Series 2004-C1 ABN AMRO Acct: 721668.1 Rating Information Class CUSIP Fitch Moody's S&P Fitch Moody's S&P Original Ratings Rating Change/Change Date(1) Statement Date: R-I 9ABSP686 NR NR NR R-II 9ABSP687 NR NR NR A-1 52108HYG3 NR Aaa AAA A-2 52108HYH1 NR Aaa AAA A-3 52108HYJ7 NR Aaa AAA A-4 52108HYK4 NR Aaa AAA B 52108HYL2 NR Aa1 AA+ C 52108HYM0 NR Aa2 AA D 52108HYN8 NR Aa3 AA- E 52108HYP3 NR A1 A+ F 52108HYQ1 NR A2 A G 52108HYR9 NR A3 A- H 52108HYT5 NR Baa1 BBB+ J 52108HYV0 NR Baa2 BBB K 52108HYX6 NR Baa3 BBB- L 52108HYZ1 NR Ba1 BB+ M 52108HZB3 NR Ba2 BB N 52108HZD9 NR Ba3 BB- P 52108HZF4 NR NR B+ Q 52108HZH0 NR NR B S 52108HZK3 NR NR B- T 52108HZM9 NR NR NR Page 21 of 22 1316-~~Aug~~Sep-2004 - 1507:1825 (P635-P689) (c) 2004 LaSalle Bank N.A. NR - Designates that the class was not rated by the rating agency. (1) Changed ratings provided on this report are based on information provided by the applicable rating agency via electronic transmission. It shall be understood that this transmission will generally have been provided to LaSalle within 30 days of the payment date listed on this statement. Because ratings may havechanged during the 30 day window, or may not be being provided by the rating agency in an electronic format and therefore not being updated onthis report, LaSalle recommends that investors obtain current rating information directly from the rating agency. LB-UBS Commercial Mortgage Trust Payment Date:Prior Payment:Next Payment:Record Date: 17-~~Aug~~Sep-0417-~~Aug~~Sep-04 1617-~~Jul~~Aug-04 1718-~~Sep~~Oct-04 3031-~~Jul~~Aug-04 Commercial Mortgage Pass-Through Certificates Series 2004-C1 ABN AMRO Acct: 721668.1 Rating Information Class CUSIP Fitch Moody's S&P Fitch Moody's S&P Original Ratings Rating Change/Change Date(1) Statement Date: X-CL 52108HZP2 NR Aaa AAA X-CP 52108HZR8 NR Aaa AAA X-ST 52108HZT4 NR Aaa AAA R-III 9ABSP688 NR NR NR V 9ABSP689 NR NR NR Page 22 of 22 1316-~~Aug~~Sep-2004 - 1507:1825 (P635-P689) (c) 2004 LaSalle Bank N.A. NR - Designates that the class was not rated by the rating agency. (1) Changed ratings provided on this report are based on information provided by the applicable rating agency via electronic transmission. It shall be understood that this transmission will generally have been provided to LaSalle within 30 days of the payment date listed on this statement. Because ratings may havechanged during the 30 day window, or may not be being provided by the rating agency in an electronic format and therefore not being updated onthis report, LaSalle recommends that investors obtain current rating information directly from the rating agency.

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