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) September 17, 2004

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

Delaware
(State or other jurisdiction
of incorporation)

333-111598-04
(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.)

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))

Section 8 - Other Events

Item 8.01. Other Events.

This current report on Form 8-K relates to the monthly distribution reported to the holders of LB-UBS Commercial Mortgage Trust 2004-C6, Commercial Mortgage Pass-Through Certificates, Series 2004-C6, 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 September 17, 2004.

(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

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-C6

ABN AMRO Acct: 722005.1

Reporting Package Table of Contents

Payment Date:
Prior Payment:
Next Payment:
Record Date:

17-Sep-04
17-Sep-04

N/A

18-Oct-04

31-Aug-04

Administrator:
Ted Novak 312.904.7053
theodore.novak@abnamro.com

Analyst:
David Ratner 714.259.6251
david.ratner@abnamro.com

Statement Date:

135 S. LaSalle Street, Suite 1625
Chicago, IL 60603
USA

Statements to Certificateholders
Cash Reconciliation Summary
Bond Interest Reconciliation
Shortfall Summary Report

Asset-Backed Facts ~ 15 Month Loan Status Summary

Asset-Backed Facts ~ 15 Month Loan Payoff/Loss Summary
Mortgage Loan Characteristics

Loan Level Detail
Realized Loss Detail
Historical REO Report

Page 2-4
Page 5-7
Page 8
Page 9

Page 10

Page 11
Page 12-14

Page 15-18
Page 19

Page 20

Appraisal Reduction Detail

Modified Loan Detail
Specially Serviced (Part I) - Loan Detail
Summary of Loan Maturity Extensions

Rating Information

Page 21

Page 22
Page 23
Page 24

Page 25-26

Page(s)

Information is available for this issue from the following sources

Issue Id:

Monthly Data File
Name:

LUBS04C6

LUBS04C6_200409_3.ZIP

Closing Date:

First Payment Date:

Rated Final Payment: Date:

24-Aug-04
17-Sep-04

17-Aug-22

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: Moody's Investors Service, Inc./Standard & Poor's

800.246.5761

LaSalle Factor Line

LaSalle Web Site

Servicer Web Site

www.wachovia.com

www.etrustee.net

Page 1 of 26

Class

CUSIP

Original

Opening

Principal

Negative

Closing

Interest

Pass-Through

Per $ 1000

Next Rate(3)

WAC:
WAMM:

Payment Date:
Prior Payment:
Next Payment:
Record Date:

5.737586%

17-Sep-04
17-Sep-04

N/A

18-Oct-04

31-Aug-04

LB-UBS Commercial Mortgage Trust

Commercial Mortgage Pass-Through Certificates

Series 2004-C6

Face Value (1)

Balance

Payment

Adj. or Loss

Amortization

Balance

Payment (2)

Adjustment

Rate

160

REMIC III

Statement Date:

ABN AMRO Acct: 722005.1

1000.000000000

5.548885128

0.000000000

994.451114872

3.234166667

Fixed

0.00

0.000000000

3.88100000%

0.000000000

52108HJ47

A-1

78,000,000.00

432,813.04

0.00

77,567,186.96

252,265.00

1000.000000000

0.000000000

1000.000000000

3.489166667

Fixed

0.00

0.000000000

4.18700000%

0.000000000

52108HJ54

A-2

222,000,000.00

0.00

222,000,000.00

774,595.00

1000.000000000

0.000000000

1000.000000000

3.789166697

Fixed

0.00

0.000000000

4.54700000%

0.000000000

52108HJ62

A-3

109,000,000.00

0.00

109,000,000.00

413,019.17

1000.000000000

0.000000000

1000.000000000

3.819166667

Fixed

0.00

0.000000000

4.58300000%

0.000000000

52108HJ70

A-4

60,000,000.00

0.00

60,000,000.00

229,150.00

1000.000000000

0.000000000

1000.000000000

4.021666667

4.826000000%

0.00

0.000000000

4.82600000%

0.000000000

52108HK60

A-5

54,000,000.00

0.00

54,000,000.00

217,170.00

1000.000000000

0.000000000

1000.000000000

4.183333333

5.020000000%

0.00

0.000000000

5.02000000%

0.000000000

52108HK78

A-6

470,130,000.00

0.00

470,130,000.00

1,966,710.50

1000.000000000

0.245336896

0.000000000

999.754663104

3.855833338

4.627000000%

0.00

0.000000000

4.62700000%

0.000000000

52108HJ88

A-1A

188,441,000.00

46,231.53

0.00

188,394,768.47

726,597.09

1000.000000000

0.000000000

1000.000000000

4.240000000

5.088000000%

0.00

0.000000000

5.08800000%

0.000000000

52108HJ96

13,465,000.00

0.00

13,465,000.00

57,091.60

1000.000000000

0.000000000

1000.000000000

4.256666525

5.108000000%

0.00

0.000000000

5.10800000%

0.000000000

52108HK29

23,564,000.00

0.00

23,564,000.00

100,304.09

1000.000000000

0.000000000

1000.000000000

4.289166887

5.147000000%

0.00

0.000000000

5.14700000%

0.000000000

52108HK37

15,148,000.00

0.00

15,148,000.00

64,972.30

1000.000000000

0.000000000

1000.000000000

4.314166790

5.177000000%

0.00

0.000000000

5.17700000%

0.000000000

52108HK45

13,466,000.00

0.00

13,466,000.00

58,094.57

1000.000000000

0.000000000

1000.000000000

4.338333113

5.206000000%

0.00

0.000000000

5.20600000%

0.000000000

52108HK52

15,148,000.00

0.00

15,148,000.00

65,717.07

1000.000000000

0.000000000

1000.000000000

4.412500424

5.295000000%

0.00

0.000000000

5.29500000%

0.000000000

52108HK86/U51394 HU 8/52108H K9 4

11,782,000.00

0.00

11,782,000.00

51,988.08

1000.000000000

0.000000000

1000.000000000

4.608334748

5.344774281%

0.00

0.000000000

5.53000218%

0.000000000

52108HL28/U51394 HV 6/52108H L3 6

11,782,000.00

0.00

11,782,000.00

54,295.40

1000.000000000

0.000000000

1000.000000000

4.689585314

5.442274281%

0.00

0.000000000

5.62750218%

0.000000000

52108HL44/U51394 HW 4/52108H L5 1

8,416,000.00

0.00

8,416,000.00

39,467.55

1000.000000000

0.000000000

1000.000000000

4.752085438

5.517274281%

0.00

0.000000000

5.70250218%

0.000000000

52108HL69/U51394 HX 2/52108H L7 7

16,831,000.00

0.00

16,831,000.00

79,982.35

Page 2 of 26

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

Negative

Closing

Interest

Pass-Through

Per $ 1000

Next Rate(3)

WAC:
WAMM:

Payment Date:
Prior Payment:
Next Payment:
Record Date:

5.737586%

17-Sep-04
17-Sep-04

N/A

18-Oct-04

31-Aug-04

LB-UBS Commercial Mortgage Trust

Commercial Mortgage Pass-Through Certificates

Series 2004-C6

Face Value (1)

Balance

Payment

Adj. or Loss

Amortization

Balance

Payment (2)

Adjustment

Rate

160

REMIC III

Statement Date:

ABN AMRO Acct: 722005.1

1000.000000000

0.000000000

1000.000000000

4.352501485

5.223000000%

0.00

0.000000000

5.22300000%

0.000000000

52108HL85/U51394 HY 0/52108H L9 3

1,683,000.00

0.00

1,683,000.00

7,325.26

1000.000000000

0.000000000

1000.000000000

4.352499629

5.223000000%

0.00

0.000000000

5.22300000%

0.000000000

52108HM27/U51394 HZ 7/52108H M3 5

6,733,000.00

0.00

6,733,000.00

29,305.38

1000.000000000

0.000000000

1000.000000000

4.352499505

5.223000000%

0.00

0.000000000

5.22300000%

0.000000000

52108HM43/U51394 JA 0/52108H M5 0

5,049,000.00

0.00

5,049,000.00

21,975.77

1000.000000000

0.000000000

1000.000000000

4.352500743

5.223000000%

0.00

0.000000000

5.22300000%

0.000000000

52108HM68/U51394 JB 8/52108H M7 6

3,367,000.00

0.00

3,367,000.00

14,654.87

1000.000000000

0.000000000

1000.000000000

4.352501485

5.223000000%

0.00

0.000000000

5.22300000%

0.000000000

52108HM84/U51394 JC 6/52108H M9 2

1,683,000.00

0.00

1,683,000.00

7,325.26

1000.000000000

0.000000000

1000.000000000

4.352501485

5.223000000%

0.00

0.000000000

5.22300000%

0.000000000

52108HN26/U51394 JD 4/52108H N3 4

1,683,000.00

0.00

1,683,000.00

7,325.26

1000.000000000

0.000000000

1000.000000000

4.352499676

5.223000000%

0.00

0.000000000

5.22300000%

0.000000000

52108HN42/U51394 JE 2/52108H N5 9

15,148,865.00

0.00

15,148,865.00

65,935.43

1000.000000000

0.000000000

999.644235052

0.104657260

0.113919326%

0.00

0.000000000

0.12558871%

0.000000000

52108HN67/U51394 JF 9/52108H N7 5

X-CL

1,346,519,865.00

0.00

1,346,040,820.43

140,923.08

1000.000000000

0.000000000

1000.000000000

0.775471602

0.745335923%

0.00

0.000000000

0.93056592%

0.000000000

52108HN83/U51394 JG 7/52108H N9 1

X-CP

1,228,397,000.00

0.00

1,228,397,000.00

952,586.99

0.000000000

0.00

0.000000000

N/A

0.000000000

9absS081

R-III

0.00

0.000000000

0.00

0.000000000

N/A

0.000000000

9absS079

R-I

0.00

0.000000000

0.00

0.000000000

N/A

0.000000000

9absS080

R-II

0.00

Total P&I Payment

0.00

1,346,519,865.00

6,877,821.64

Total

1,346,040,820.43

479,044.57

0.00

6,398,777.07

Page 3 of 26

Class

CUSIP

Original

Opening

Principal

Negative

Closing

Interest

Pass-Through

Per $ 0

Next Rate(3)

WAC:
WAMM:

Payment Date:
Prior Payment:
Next Payment:
Record Date:

5.737586%

17-Sep-04
17-Sep-04

N/A

18-Oct-04

31-Aug-04

LB-UBS Commercial Mortgage Trust

Commercial Mortgage Pass-Through Certificates

Series 2004-C6

Face Value (1)

Balance

Payment

Adj. or Loss

Amortization

Balance

Payment (2)

Adjustment

Rate

160

Grantor Trust

Statement Date:

ABN AMRO Acct: 722005.1

0.000000000

0.00

0.000000000

N/A

0.000000000

9absS082

0.00

Total P&I Payment

0.00

Total

0.00

Page 4 of 26

LB-UBS Commercial Mortgage Trust

Payment Date:
Prior Payment:
Next Payment:
Record Date:

17-Sep-04
17-Sep-04

N/A

18-Oct-04

31-Aug-04

Commercial Mortgage Pass-Through Certificates

Series 2004-C6

ABN AMRO Acct: 722005.1

Statement Date:

Cash Reconciliation Summary

Current Scheduled Interest

Interest Summary

Less Deferred Interest

Plus Gross Advance Interest

Less PPIS Reducing Scheduled Int

6,438,144.30

0.00
0.00

Less ASER Interest Adv Reduction

0.00

Less Other Adjustment

0.00

Total

6,438,144.30

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 & Expenses
Total Interest Due Trust

Less Fees & Expenses Paid By/To Trust
Trustee Fee
Fee Strips
Misc. Fees
Interest Reserve Withholding

Plus Interest Reserve Deposit
Total

Total Interest Due Certs

Principal Summary

Scheduled Principal:
Current Scheduled Principal
Advanced Scheduled Principal
Scheduled Principal
Unscheduled Principal:
Curtailments
Prepayments in Full
Liquidation Proceeds
Repurchase Proceeds
Other Principal Proceeds
Total Unscheduled Principal
Remittance Principal

Remittance P&I Due Trust

Remittance P&I Due Certs

Pool Balance Summary

Beginning Pool
Scheduled Principal
Unscheduled Principal
Deferred Interest
Liquidations
Repurchases

Ending Pool

Balance

Count

Principal

Interest

Prior Outstanding
Plus Current Period
Less Recovered

Ending Outstanding

Servicing Fee Summary

Current Servicing Fees
Plus Fees Advanced for PPIS
Less Reduction for PPIS
Plus Delinquent Servicing Fees

Total Servicing Fees

PPIS Summary

Gross PPIS
Reduced by PPIE
Reduced by Shortfalls in Fees
Reduced by Other Amounts

PPIS Reducing Scheduled
Interest

PPIS Reducing Servicing Fee
PPIS Due Certificate

0.00

0.00
0.00

0.00

6,400,437.77

)

(1,660.71

0.00
0.00
0.00

)

(1,660.71

479,044.57

0.00

479,044.57

0.00
0.00
0.00
0.00
0.00
0.00

479,044.57

6,879,482.34

6,877,821.63

1,346,519,865.46

479,044.57

0.00

0.00
0.00

0.00

1,346,040,820.89

0.00

37,706.53

0.00
0.00
0.00

37,706.53

0.00
0.00
0.00
0.00
0.00
0.00

0.00

Advance Summary (Advance Made by Servicer)

)

(37,706.53

6,398,777.06

Interest Not Advanced (

Current Period

)

0.00

Workout Fees
Liquidation Fees

0.00
0.00

Less Non Recovered

0.00

0.00
0.00

0.00

Page 5 of 26

LB-UBS Commercial Mortgage Trust

Payment Date:
Prior Payment:
Next Payment:
Record Date:

17-Sep-04
17-Sep-04

N/A

18-Oct-04

31-Aug-04

Commercial Mortgage Pass-Through Certificates

Series 2004-C6

ABN AMRO Acct: 722005.1

Statement Date:

Cash Reconciliation Summary Loan Group 1

Current Scheduled Interest

Interest Summary

Less Deferred Interest

Plus Gross Advance Interest

Less PPIS Reducing Scheduled Int

5,517,953.23

0.00
0.00

Less ASER Interest Adv Reduction

0.00

Less Other Adjustment

0.00

Total

5,517,953.23

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 & Expenses
Total Interest Due Trust

Less Fees & Expenses Paid By/To Trust
Trustee Fee
Fee Strips
Misc. Fees
Interest Reserve Withholding

Plus Interest Reserve Deposit
Total

Total Interest Due Certs

Principal Summary

Remittance P&I Due Trust

Remittance P&I Due Certs

Pool Balance Summary

Beginning Pool
Scheduled Principal
Unscheduled Principal
Deferred Interest
Liquidations
Repurchases

Ending Pool

Balance

Count

Principal

Interest

Prior Outstanding
Plus Current Period
Less Recovered

Ending Outstanding

Servicing Fee Summary

Current Servicing Fees
Plus Fees Advanced for PPIS
Less Reduction for PPIS
Plus Delinquent Servicing Fees

Total Servicing Fees

PPIS Summary

Gross PPIS
Reduced by PPIE
Reduced by Shortfalls in Fees
Reduced by Other Amounts

PPIS Reducing Scheduled
Interest

PPIS Reducing Servicing Fee
PPIS Due Certificate

0.00

0.00
0.00

0.00

5,486,191.45

)

(1,428.30

0.00
0.00
0.00

)

(1,428.30

432,813.04

0.00

432,813.04

0.00
0.00
0.00
0.00
0.00
0.00

432,813.04

5,919,004.49

5,917,576.19

1,158,078,102.57

432,813.04

0.00

0.00
0.00

0.00

1,157,645,289.53

0.00

31,761.79

0.00
0.00
0.00

31,761.79

0.00
0.00
0.00
0.00
0.00
0.00

0.00

Advance Summary (Advance Made by Servicer)

)

(31,761.79

5,484,763.15

Interest Not Advanced (

Current Period

)

0.00

Workout Fees
Liquidation Fees

0.00
0.00

Less Non Recovered

0.00

0.00
0.00

0.00

Page 6 of 26

LB-UBS Commercial Mortgage Trust

Payment Date:
Prior Payment:
Next Payment:
Record Date:

17-Sep-04
17-Sep-04

N/A

18-Oct-04

31-Aug-04

Commercial Mortgage Pass-Through Certificates

Series 2004-C6

ABN AMRO Acct: 722005.1

Statement Date:

Cash Reconciliation Summary Loan Group 2

Current Scheduled Interest

Interest Summary

Less Deferred Interest

Plus Gross Advance Interest

Less PPIS Reducing Scheduled Int

920,191.07

0.00
0.00

Less ASER Interest Adv Reduction

0.00

Less Other Adjustment

0.00

Total

920,191.07

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 & Expenses
Total Interest Due Trust

Less Fees & Expenses Paid By/To Trust
Trustee Fee
Fee Strips
Misc. Fees
Interest Reserve Withholding

Plus Interest Reserve Deposit
Total

Total Interest Due Certs

Principal Summary

Remittance P&I Due Trust

Remittance P&I Due Certs

Pool Balance Summary

Beginning Pool
Scheduled Principal
Unscheduled Principal
Deferred Interest
Liquidations
Repurchases

Ending Pool

Balance

Count

Principal

Interest

Prior Outstanding
Plus Current Period
Less Recovered

Ending Outstanding

Servicing Fee Summary

Current Servicing Fees
Plus Fees Advanced for PPIS
Less Reduction for PPIS
Plus Delinquent Servicing Fees

Total Servicing Fees

PPIS Summary

Gross PPIS
Reduced by PPIE
Reduced by Shortfalls in Fees
Reduced by Other Amounts

PPIS Reducing Scheduled
Interest

PPIS Reducing Servicing Fee
PPIS Due Certificate

0.00

0.00
0.00

0.00

914,246.32

)

(232.41

0.00
0.00
0.00

)

(232.41

46,231.53

0.00

46,231.53

0.00
0.00
0.00
0.00
0.00
0.00

46,231.53

960,477.85

960,245.44

188,441,762.89

46,231.53

0.00

0.00
0.00

0.00

188,395,531.36

0.00

5,944.74

0.00
0.00
0.00

5,944.74

0.00
0.00
0.00
0.00
0.00
0.00

0.00

Advance Summary (Advance Made by Servicer)

)

(5,944.74

914,013.91

Interest Not Advanced (

Current Period

)

0.00

Workout Fees
Liquidation Fees

0.00
0.00

Less Non Recovered

0.00

0.00
0.00

0.00

Page 7 of 26

LB-UBS Commercial Mortgage Trust

Class

Accrued

Payment Date:
Prior Payment:
Next Payment:
Record Date:

17-Sep-04
17-Sep-04

N/A

18-Oct-04

31-Aug-04

Commercial Mortgage Pass-Through Certificates

Series 2004-C6

ABN AMRO Acct: 722005.1

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

A-1

252,265.00

0.00

12.25%

30/360

3.881000000%

0.00

A-2

774,595.00

0.00

12.25%

30/360

4.187000000%

0.00

A-3

413,019.17

0.00

12.25%

30/360

4.547000000%

0.00

A-4

229,150.00

0.00

12.25%

30/360

4.583000000%

0.00

A-5

217,170.00

0.00

12.25%

30/360

4.826000000%

0.00

A-6

1,966,710.50

0.00

12.25%

30/360

5.020000000%

0.00

A-1A

726,597.09

0.00

12.25%

30/360

4.627000000%

0.00

57,091.60

0.00

11.25%

30/360

5.088000000%

0.00

100,304.09

0.00

9.50%

30/360

5.108000000%

0.00

64,972.30

0.00

8.38%

30/360

5.147000000%

0.00

58,094.57

0.00

7.38%

30/360

5.177000000%

0.00

65,717.07

0.00

6.25%

30/360

5.206000000%

0.00

51,988.08

0.00

5.38%

30/360

5.295000000%

0.00

54,295.40

0.00

4.50%

30/360

5.530002184%

0.00

39,467.55

0.00

3.88%

30/360

5.627502184%

0.00

79,982.35

0.00

2.63%

30/360

5.702502184%

0.00

7,325.26

0.00

2.50%

30/360

5.223000000%

0.00

29,305.38

0.00

2.00%

30/360

5.223000000%

0.00

21,975.77

0.00

1.63%

30/360

5.223000000%

0.00

14,654.87

0.00

1.38%

30/360

5.223000000%

0.00

7,325.26

0.00

1.25%

30/360

5.223000000%

0.00

7,325.26

0.00

1.13%

30/360

5.223000000%

0.00

65,935.43

0.00

0.00%

30/360

5.223000000%

0.00

X-CL

140,923.08

0.00

30/360

0.125588710%

0.00

X-CP

952,586.99

0.00

30/360

0.930565923%

0.00

0.000000000%

0.00

6,398,777.07

0.00

(2) Accrued - Deductions + Additions Interest

(3) Includes interest accrued on outstanding Interest Shortfalls and/or Loss Allocations. Where applicable.

Page 8 of 26

(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-Sep-04
17-Sep-04

N/A

18-Oct-04

31-Aug-04

Commercial Mortgage Pass-Through Certificates

Series 2004-C6

ABN AMRO Acct: 722005.1

Interest Adjustments Summary

Statement Date:

0.00

Special Servicing Fees

Workout Fees

Liquidation Fees

Legal Fees

0.00

Misc. Fees & Expenses Paid by/to Servicer

Interest Paid to Servicer on Outstanding Advances

0.00

ASER Interest Advance Reduction

Interest Not Advanced (Current Period)

Recoup of Prior Advances by Servicer

0.00

Servicing Fees Paid Servicer on Loans Not Advanced

Misc. Fees & Expenses Paid by Trust

0.00

Shortfall Due to Rate Modification

Total Shortfall Allocated to the Bonds

Total Interest Adjustment to the Bonds

0.00

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

0.00

0.00

Aggregate Interest Adjustment Allocated to the Bonds

0.00

Prepayment Interest Excess Due the Bonds

0.00

ARD Excess Interest

0.00

Net Prepayment Int. Shortfalls Allocated to the Bonds

Other Interest Loss

Page 9 of 26

LB-UBS Commercial Mortgage Trust

Payment Date:
Prior Payment:
Next Payment:
Record Date:

17-Sep-04
17-Sep-04

N/A

18-Oct-04

31-Aug-04

Commercial Mortgage Pass-Through Certificates

Series 2004-C6

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

Delinquency Aging Categories

Special Event Categories (1)

Statement Date:

ABN AMRO Acct: 722005.1

0.00%

17-Sep-04

(1) Note: Modification, Specially Serviced & Bankruptcy Totals are Included in the Appropriate Delinquency Aging Category

Page 10 of 26

LB-UBS Commercial Mortgage Trust

Payment Date:
Prior Payment:
Next Payment:
Record Date:

17-Sep-04
17-Sep-04

N/A

18-Oct-04

31-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

# Amount

# Balance

# Amount

Life

Coupon Remit

Statement Date:

Amort

ABN AMRO Acct: 722005.1

Series 2004-C6

17-Sep-04

102.13%

1,346,040,821

99.96%

0.00%

160

286

5.74%

5.70%

(1) Percentage based on pool as of cutoff. (2) Percentage based on pool as of beginning of period.

Page 11 of 26

LB-UBS Commercial Mortgage Trust

Mortgage Loan Characteristics

ABN AMRO Acct: 722005.1

Series 2004-C6

Commercial Mortgage Pass-Through Certificates

31-Aug-04

18-Oct-04

N/A

17-Sep-04

Record Date:

Next Payment:

Prior Payment:

Payment Date:

Statement Date:

Distribution of Mortgage Interest Rates

Distribution of Principal Balances

Distribution of Remaining Term (Balloon)

Distribution of Remaining Term (Fully Amortizing)

Page 12 of 26

Current Scheduled

Balance

# of

Loans

Scheduled

Balance

% of

Balance

Weighted Average

Term Coupon PFY DSCR

2,799,135

0.21

5.81

0.00

875,000 to

1,000,000

12,297,306

0.91

5.82

0.00

1,000,000 to

2,000,000

28,408,483

2.11

106

6.02

0.00

2,000,000 to

3,000,000

69,143,389

5.14

108

5.96

0.00

3,000,000 to

4,000,000

34,788,431

2.58

118

5.92

0.00

4,000,000 to

5,000,000

69,168,318

5.14

113

5.89

0.00

5,000,000 to

7,500,000

62,979,188

4.68

102

5.99

0.00

7,500,000 to 10,000,000

98,740,429

7.34

119

5.60

0.00

10,000,000 to 15,000,000

52,676,341

3.91

5.89

0.00

15,000,000 to 20,000,000

46,462,866

3.45

119

6.14

0.00

20,000,000 to 25,000,000

225,845,339

16.78

125

5.87

0.00

25,000,000 to 50,000,000

262,456,097

19.50

5.27

0.00

50,000,000 to 75,000,000

170,275,500

12.65

220

5.28

0.00

75,000,000 to 100,000,000

210,000,000

15.60

354

5.03

0.00

100,000,000 &

Above

210,000,000

878,363

1,346,040,821

100.00%

Average Schedule Balance
Maximum Schedule Balance
Minimum Schedule Balance

14,021,259

Current Mortgage

Interest Rate

# of

Loans

Scheduled

Balance

% of

Balance

Weighted Average

Term Coupon PFY DSCR

41,174,500

3.06

268

4.11

0.00

3.950%

4.500%

136,700,000

10.16

4.67

0.00

4.501%

4.750%

109,447,178

8.13

312

4.94

0.00

4.751%

5.000%

234,229,700

17.40

329

5.03

0.00

5.001%

5.250%

281,161,376

20.89

5.64

0.00

5.501%

5.750%

164,450,866

12.22

5.90

0.00

5.751%

6.000%

249,304,588

18.52

117

6.13

0.00

6.001%

6.250%

42,969,362

3.19

130

6.41

0.00

6.251%

6.500%

45,265,808

3.36

113

6.61

0.00

6.501%

6.750%

41,337,443

3.07

6.96

0.00

6.751%

Above

1,346,040,821

Minimum Mortgage Interest Rate
Maximum Mortgage Interest Rate

100.00%

3.966%
6.980%

Fully Amortizing

Mortgage Loans

# of

Loans

Scheduled

Balance

% of

Balance

Weighted Average

Term Coupon PFY DSCR

0.00

120

0.00

121

180

10,874,770

0.81

215

6.34

0.00

181

240

0.00

241

Above

10,874,770

0.81%

Balloon

Mortgage Loans

# of

Loans

Scheduled

Balance

% of

Balance

Weighted Average

Term Coupon PFY DSCR

0.00

356,699,413

26.50

5.30

0.00

629,146,400

46.74

115

6.01

0.00

120

16,820,238

1.25

147

5.95

0.00

121

180

0.00

181

240

332,500,000

24.70

354

4.91

0.00

241

& Above

354

1,335,166,051

Minimum Remaining Term

Maximum Remaining Term

99.19

LB-UBS Commercial Mortgage Trust

Mortgage Loan Characteristics

ABN AMRO Acct: 722005.1

Series 2004-C6

Commercial Mortgage Pass-Through Certificates

31-Aug-04

18-Oct-04

N/A

17-Sep-04

Record Date:

Next Payment:

Prior Payment:

Payment Date:

Statement Date:

Geographic Distribution

Distribution of DSCR (PFY)

Distribution of DSCR (Cutoff)

Page 13 of 26

Debt Service

Coverage Ratio

# of

Loans

Scheduled

Balance

% of

Balance

WAMM WAC PFY DSCR

0.00

0.500 1.000

0.00

1.001 1.500

0.00

1.501 2.000

0.00

2.001 2.500

0.00

2.501 3.000

0.00

3.001 3.500

0.00

3.501 4.000

0.00

4.001 4.500

0.00

4.501 & Above

1,346,040,821

100.00

160

5.55

0.00

Unknown

0.000
0.000

1,346,040,821

100.00%

Minimum DSCR

Maximum DSCR

Debt Service

Coverage Ratio

# of

Loans

Scheduled

Balance

% of

Balance

WAMM WAC PFY DSCR

601,410,840

44.68

112

6.01

0.00

1.000 1.500

400,598,189

29.76

217

5.40

0.00

1.501 2.000

195,647,677

14.54

265

5.07

0.00

2.001 2.500

148,384,114

11.02

4.75

0.00

2.501 & Above

3.140

1.200

1,346,040,821 100.00

Minimum DSCR

Maximum DSCR

Geographic

Location

# of

Loans

Scheduled

Balance

% of

Balance

WAMM WAC PFY DSCR

New York

288,322,365

21.42

208

5.49

0.00

Massachusetts

261,993,746

19.46

307

5.23

0.00

Illinois

157,792,215

11.72

4.82

0.00

Multiple States

77,200,000

5.74

5.66

0.00

District of Columbia

75,440,211

5.60

116

5.66

0.00

Florida

73,901,170

5.49

105

5.74

0.00

Texas

71,046,061

5.28

110

5.72

0.00

California

60,221,864

4.47

117

6.00

0.00

Virginia

52,333,530

3.89

5.80

0.00

Hawaii

45,838,213

3.41

114

6.83

0.00

New Jersey

39,801,517

2.96

6.10

0.00

Georgia

38,000,000

2.82

118

6.62

0.00

Ohio

17,887,798

1.33

5.71

0.00

North Carolina

15,235,208

1.13

4.63

0.00

Alabama

11,200,000

0.83

142

5.62

0.00

South Carolina

9,527,417

0.71

117

6.07

0.00

Oregon

8,739,520

0.65

117

5.98

0.00

Maryland

8,378,127

0.62

118

6.05

0.00

Delaware

6,922,380

0.51

117

6.06

0.00

Nevada

6,411,773

0.48

117

6.37

0.00

Pennsylvania

5,656,924

0.42

117

5.66

0.00

Michigan

5,043,679

0.37

5.96

0.00

New Mexico

3,536,963

0.26

116

5.81

0.00

Colorado

2,995,014

0.22

6.00

0.00

Indiana

2,615,127

0.19

5.56

0.00

100.00

1,346,040,821

LB-UBS Commercial Mortgage Trust

Mortgage Loan Characteristics

ABN AMRO Acct: 722005.1

Series 2004-C6

Commercial Mortgage Pass-Through Certificates

31-Aug-04

18-Oct-04

N/A

17-Sep-04

Record Date:

Next Payment:

Prior Payment:

Payment Date:

Statement Date:

Distribution of Loan Seasoning

Distribution of Property Types

Distribution of Year Loans Maturing

Distribution of Amortization Type

Page 14 of 26

Property Types

# of

Loans

Scheduled

Balance

% of

Balance

WAMM WAC PFY DSCR

Retail

586,229,275

43.55

186

5.33

0.00

Office

396,800,160

29.48

191

5.60

0.00

Multifamily

104,288,697

7.75

100

5.65

0.00

Mobile home park

84,106,835

6.25

5.70

0.00

Lodging

74,623,899

5.54

6.47

0.00

Self storage

65,676,148

4.88

5.82

0.00

Industrial

34,315,808

2.55

114

5.64

0.00

1,346,040,821

100.00%

Amortization Type

# of

Loans

Scheduled

Balance

% of

Balance

WAMM WAC PFY DSCR

Full Amortizing

10,874,770

0.81

215

6.34

0.00

IO Maturity Balloon

243,962,000

18.12

5.12

0.00

IO/Amortizing/Balloon

1,091,204,051

81.07

182

5.64

0.00

1,346,040,821

100.00%

Number of Months

# of

Loans

Scheduled

Balance

% of

Balance

WAMM WAC PFY DSCR

660,478,067

49.07

0.00

5.80

181,582,852

13.49

0.00

5.83

129,651,075

9.63

111

0.00

5.53

8,210,840

0.61

115

0.00

5.79

243,617,988

18.10

320

0.00

5.08

122,500,000

9.10

353

0.00

4.73

1,346,040,821

100.00%

Year

# of

Loans

Scheduled

Balance

% of

Balance

WAMM WAC PFY DSCR

0.00

2004

0.00

2005

0.00

2006

0.00

2007

0.00

2008

356,699,413

26.50

5.30

0.00

2009

0.00

2010

52,732,884

3.92

6.35

0.00

2011

0.00

2012

0.00

2013

576,413,516

42.82

118

5.98

0.00

2014

360,195,008

26.76

340

5.01

0.00

2015 & Greater

100.00

1,346,040,821

LB-UBS Commercial Mortgage Trust

Payment Date:
Prior Payment:
Next Payment:
Record Date:

17-Sep-04
17-Sep-04

N/A

18-Oct-04

31-Aug-04

Commercial Mortgage Pass-Through Certificates

Series 2004-C6

ABN AMRO Acct: 722005.1

Loan Level Detail

Disclosure

Control #

Group

Property

Type

Maturity

Date

PFY

DSCR

Operating
Statement

Date

Geo.

Location

Ending

Principal

Balance

Note
Rate

Scheduled

P&I

Prepayment

Amount

Prepayment

Date

Loan

Status

Code (1)

Statement Date:

5.02500%

11-Mar-34

LUBS4C6A

Retail

0.00

210,000,000

908,688

5.66400%

11-Aug-09

LUBS4C6B

Mobile home park

0.00

77,200,000

376,530

5.65250%

11-May-14

LUBS4C6A

Office

0.00

63,756,097

369,532

6.19000%

11-Aug-14

LUBS4C6A

Office

0.00

62,000,000

330,477

6.61500%

11-Jul-14

LUBS4C6A

Office

0.00

38,000,000

216,458

5.85500%

11-Jun-09

LUBS4C6A

Self storage

0.00

37,345,396

238,300

6.98000%

11-Aug-11

LUBS4C6A

Lodging

0.00

34,963,443

246,926

5.52000%

11-Mar-14

LUBS4C6A

Industrial

0.00

30,400,000

144,501

6.07000%

11-Jun-14

LUBS4C6B

Multifamily

0.00

29,000,000

151,581

5.65000%

11-Jun-09

LUBS4C6A

Retail

0.00

26,712,000

129,961

6.14000%

11-Aug-14

LUBS4C6A

Office

0.00

23,980,834

146,059

6.14000%

11-Aug-14

LUBS4C6A

Retail

0.00

22,482,032

136,931

6.02000%

11-Jul-14

LUBS4C6A

Retail

0.00

19,000,000

98,494

5.99000%

11-Aug-09

LUBS4C6A

Lodging

0.00

18,476,341

119,083

5.60000%

11-Jun-14

LUBS4C6A

Office

0.00

15,200,000

73,298

5.99000%

11-Jul-14

LUBS4C6A

Retail

0.00

13,600,000

70,150

5.91000%

11-Aug-14

LUBS4C6A

Retail

0.00

13,488,544

80,160

4.77300%

11-Jun-11

LUBS4C6A

Office

0.00

13,153,691

69,041

6.03000%

11-Aug-14

LUBS4C6A

Office

0.00

12,989,310

78,192

4.46000%

11-May-09

LUBS4C6B

Multifamily

0.00

11,750,000

45,127

5.70250%

11-May-14

LUBS4C6A

Lodging

0.00

11,684,114

73,583

5.62000%

11-Jul-16

LUBS4C6A

Retail

0.00

11,200,000

54,202

6.34000%

11-Aug-22

LUBS4C6A

Office

0.00

10,874,770

84,738

6.47000%

11-Jul-14

LUBS4C6A

Retail

0.00

9,985,368

63,010

5.80000%

11-Aug-14

LUBS4C6A

Office

0.00

9,841,400

57,795

Page 15 of 26

* 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 month
2. 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-Sep-04
17-Sep-04

N/A

18-Oct-04

31-Aug-04

Commercial Mortgage Pass-Through Certificates

Series 2004-C6

ABN AMRO Acct: 722005.1

Loan Level Detail

Disclosure

Control #

Group

Property

Type

Maturity

Date

PFY

DSCR

Operating
Statement

Date

Geo.

Location

Ending

Principal

Balance

Note
Rate

Scheduled

P&I

Prepayment

Amount

Prepayment

Date

Loan

Status

Code (1)

Statement Date:

6.45000%

11-Aug-09

LUBS4C6A

Lodging

0.00

9,500,000

52,765

5.70000%

11-Aug-14

LUBS4C6A

Retail

0.00

9,391,581

54,558

4.66960%

10-Jul-09

LUBS4C6A

Retail

0.00

68,350,000

274,838

4.66960%

10-Jul-09

LUBS4C6A

Retail

0.00

68,350,000

274,838

5.99000%

11-Jul-14

LUBS4C6A

Retail

0.00

8,450,000

43,586

5.79000%

11-Apr-14

LUBS4C6A

Retail

0.00

8,210,840

48,355

5.62000%

11-Jul-09

LUBS4C6B

Multifamily

0.00

7,600,000

36,780

6.18000%

11-Aug-14

LUBS4C6A

Retail

0.00

7,034,438

43,026

5.99000%

11-Aug-14

LUBS4C6A

Office

0.00

6,494,598

38,929

5.99000%

11-Jul-14

LUBS4C6A

Retail

0.00

6,200,000

31,980

6.13540%

11-Jun-14

LUBS4C6B

Multifamily

0.00

6,015,210

36,691

5.05000%

11-May-14

LUBS4C6B

Multifamily

0.00

5,780,000

25,135

5.88000%

11-May-14

LUBS4C6A

Retail

0.00

5,679,412

33,736

5.05000%

11-May-14

LUBS4C6B

Multifamily

0.00

5,650,000

24,570

4.96580%

11-Feb-34

LUBS4C6A

Office

0.00

93,075,500

398,001

3.96580%

11-Feb-34

LUBS4C6A

Office

0.00

29,424,500

100,485

6.12500%

11-Jun-14

LUBS4C6A

Retail

0.00

5,448,851

33,194

6.00000%

11-Jun-14

LUBS4C6A

Retail

0.00

5,285,861

31,776

6.28000%

11-Jul-14

LUBS4C6A

Office

0.00

5,257,880

32,526

6.18000%

11-Aug-09

LUBS4C6A

Office

0.00

5,220,872

31,934

5.81000%

11-May-14

LUBS4C6B

Multifamily

0.00

5,101,197

30,074

6.18000%

11-Aug-14

LUBS4C6A

Retail

0.00

4,636,334

28,358

5.73000%

11-Jul-14

LUBS4C6A

Self storage

0.00

4,500,000

22,204

6.05000%

11-Aug-14

LUBS4C6A

Retail

0.00

4,421,381

26,673

6.18000%

11-Aug-14

LUBS4C6A

Retail

0.00

4,396,524

26,892

Page 16 of 26

determine such figures.

(1) Legend:

A. In Grace Period

B. Late Payment but < 1 month delinq

1. Delinquent 1 month
2. 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-Sep-04
17-Sep-04

N/A

18-Oct-04

31-Aug-04

Commercial Mortgage Pass-Through Certificates

Series 2004-C6

ABN AMRO Acct: 722005.1

Loan Level Detail

Disclosure

Control #

Group

Property

Type

Maturity

Date

PFY

DSCR

Operating
Statement

Date

Geo.

Location

Ending

Principal

Balance

Note
Rate

Scheduled

P&I

Prepayment

Amount

Prepayment

Date

Loan

Status

Code (1)

Statement Date:

6.05000%

11-Jul-14

LUBS4C6A

Retail

0.00

4,393,782

26,528

6.18000%

11-Jun-14

LUBS4C6B

Multifamily

0.00

4,239,136

25,975

5.80000%

11-May-14

LUBS4C6B

Multifamily

0.00

4,184,539

24,644

5.15500%

11-Jul-14

LUBS4C6A

Retail

0.00

4,016,736

21,990

5.80000%

11-Aug-14

LUBS4C6A

Retail

0.00

3,996,508

23,470

6.22900%

11-Jul-14

LUBS4C6A

Office

0.00

3,993,746

24,574

6.54000%

11-Jun-14

LUBS4C6A

Industrial

0.00

3,915,808

24,912

6.06000%

11-Jun-14

LUBS4C6B

Multifamily

0.00

3,685,296

23,975

6.13000%

11-Aug-14

LUBS4C6B

Mobile home park

0.00

3,647,077

22,190

5.89000%

11-Jun-14

LUBS4C6B

Multifamily

0.00

3,590,146

21,330

5.86000%

11-May-14

LUBS4C6A

Retail

0.00

3,586,935

21,261

5.81000%

11-May-14

LUBS4C6A

Office

0.00

3,536,963

20,852

5.63000%

11-Jun-09

LUBS4C6B

Multifamily

0.00

3,520,000

17,065

5.20000%

11-May-14

LUBS4C6A

Retail

0.00

3,485,208

19,219

6.64000%

11-Jun-09

LUBS4C6A

Retail

0.00

3,350,000

19,155

5.75000%

11-Jun-14

LUBS4C6A

Retail

0.00

3,290,669

19,258

5.56000%

11-Jul-09

LUBS4C6A

Self storage

0.00

3,273,899

18,747

6.13000%

11-Jul-14

LUBS4C6B

Mobile home park

0.00

3,259,757

19,849

6.06000%

11-Jun-14

LUBS4C6B

Multifamily

0.00

3,237,084

21,059

6.91000%

11-Jul-19

LUBS4C6A

Retail

0.00

3,224,000

19,184

4.86000%

11-Mar-09

LUBS4C6B

Multifamily

0.00

3,217,988

18,735

6.84000%

11-Jun-14

LUBS4C6A

Retail

0.00

3,150,000

18,554

6.13000%

11-Aug-14

LUBS4C6A

Self storage

0.00

3,092,266

20,220

5.18000%

11-Jun-14

LUBS4C6A

Retail

0.00

3,090,038

16,984

6.00000%

11-Jul-11

LUBS4C6A

Self storage

0.00

2,995,014

17,987

Page 17 of 26

determine such figures.

(1) Legend:

A. In Grace Period

B. Late Payment but < 1 month delinq

1. Delinquent 1 month
2. 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-Sep-04
17-Sep-04

N/A

18-Oct-04

31-Aug-04

Commercial Mortgage Pass-Through Certificates

Series 2004-C6

ABN AMRO Acct: 722005.1

Loan Level Detail

Disclosure

Control #

Group

Property

Type

Maturity

Date

PFY

DSCR

Operating
Statement

Date

Geo.

Location

Ending

Principal

Balance

Note
Rate

Scheduled

P&I

Prepayment

Amount

Prepayment

Date

Loan

Status

Code (1)

Statement Date:

6.25000%

11-Jun-14

LUBS4C6A

Retail

0.00

2,927,622

18,071

5.96000%

11-May-14

LUBS4C6B

Multifamily

0.00

2,889,724

17,312

6.50000%

11-Aug-14

LUBS4C6A

Retail

0.00

2,847,938

18,014

5.63000%

11-Jun-14

LUBS4C6A

Retail

0.00

2,807,816

16,219

6.24000%

11-Jun-14

LUBS4C6A

Retail

0.00

2,566,886

17,004

6.11000%

11-Jul-14

LUBS4C6A

Self storage

0.00

2,495,964

15,166

6.22000%

11-Jul-15

LUBS4C6A

Retail

0.00

2,396,238

14,730

5.12000%

11-Aug-09

LUBS4C6B

Multifamily

0.00

2,207,717

12,026

6.50000%

11-Aug-14

LUBS4C6A

Retail

0.00

2,157,506

14,584

5.56000%

11-Jul-09

LUBS4C6A

Self storage

0.00

2,116,057

12,117

5.56000%

11-Jul-09

LUBS4C6A

Self storage

0.00

1,936,391

11,088

5.56000%

11-Jul-09

LUBS4C6A

Self storage

0.00

1,876,503

10,745

5.56000%

11-Jul-09

LUBS4C6A

Self storage

0.00

1,736,763

9,945

6.07000%

11-Dec-11

LUBS4C6A

Retail

0.00

1,620,736

9,816

5.91000%

11-Jul-14

LUBS4C6B

Multifamily

0.00

1,497,448

8,907

6.40000%

11-Aug-14

LUBS4C6A

Self storage

0.00

1,348,409

9,031

5.56000%

11-Jul-09

LUBS4C6A

Self storage

0.00

1,157,842

6,630

6.17000%

11-Jul-14

LUBS4C6B

Multifamily

0.00

1,123,213

6,868

6.26000%

11-Jun-14

LUBS4C6A

Retail

0.00

997,492

6,164

5.56000%

11-Jul-09

LUBS4C6A

Self storage

0.00

923,279

5,287

5.56000%

11-Jul-09

LUBS4C6A

Self storage

0.00

878,363

5,030

1,346,040,821

6,917,189

Page 18 of 26

determine such figures.

(1) Legend:

A. In Grace Period

B. Late Payment but < 1 month delinq

1. Delinquent 1 month
2. 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-Sep-04
17-Sep-04

N/A

18-Oct-04

31-Aug-04

Commercial Mortgage Pass-Through Certificates

Series 2004-C6

ABN AMRO Acct: 722005.1

Realized Loss Detail

Period

Disclosure

Control #

Appraisal

Date

Appraisal

Value

Beginning
Scheduled

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 Total
Cumulative

Page 19 of 26

* 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-Sep-04
17-Sep-04

N/A

18-Oct-04

31-Aug-04

Commercial Mortgage Pass-Through Certificates

Series 2004-C6

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: 722005.1

Page 20 of 26

LB-UBS Commercial Mortgage Trust

Payment Date:
Prior Payment:
Next Payment:
Record Date:

17-Sep-04
17-Sep-04

N/A

18-Oct-04

31-Aug-04

Commercial Mortgage Pass-Through Certificates

Series 2004-C6

ABN AMRO Acct: 722005.1

ASER Detail

Period

Disclosure

Control #

Appraisal

Date

Appraisal

Value

Beginning
Scheduled

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

Page 21 of 26

LB-UBS Commercial Mortgage Trust

Payment Date:
Prior Payment:
Next Payment:
Record Date:

17-Sep-04
17-Sep-04

N/A

18-Oct-04

31-Aug-04

Commercial Mortgage Pass-Through Certificates

Series 2004-C6

ABN AMRO Acct: 722005.1

Modified Loan Detail

Disclosure

Control #

Modification

Date

Cutoff

Maturity

Date

Modification

Description

Modified

Maturity

Date

Statement Date:

Page 22 of 26

LB-UBS Commercial Mortgage Trust

Payment Date:
Prior Payment:
Next Payment:
Record Date:

17-Sep-04
17-Sep-04

N/A

18-Oct-04

31-Aug-04

Commercial Mortgage Pass-Through Certificates

Series 2004-C6

ABN AMRO Acct: 722005.1

Specially Serviced (Part I) ~ Loan Detail (End of Period)

Disclosure

Control #

Servicing

Xfer Date

Balance

Note
Rate

Maturity

Date

Remaining

Property

Type

Geo.

Location

NOI

DSCR

NOI
Date

Schedule

Actual

Life

Statement Date:

Loan

Status

Code(1)

Page 23 of 26

(1) Legend:

A. P&I Adv - in Grace Period
B. P&I Adv - < one month delinq

1. P&I Adv - delinquent 1 month
2. P&I Adv - delinquent 2 months

3. P&I Adv - delinquent 3+ months
4. 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-Sep-04
17-Sep-04

N/A

18-Oct-04

31-Aug-04

Commercial Mortgage Pass-Through Certificates

Series 2004-C6

ABN AMRO Acct: 722005.1

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:

0.00

Number of Loans:

0.00

Number of Loans:

0.00

Loans paid-off that did not experience Maturity Date extensions

Number of Loans:
Cutoff Principal Balance:

0.00

Page 24 of 26

LB-UBS Commercial Mortgage Trust

Payment Date:
Prior Payment:
Next Payment:
Record Date:

17-Sep-04
17-Sep-04

N/A

18-Oct-04

31-Aug-04

Commercial Mortgage Pass-Through Certificates

Series 2004-C6

ABN AMRO Acct: 722005.1

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

9absS079

R-II

9absS080

A-1

52108HJ47

AAA

A-2

52108HJ54

AAA

A-3

52108HJ62

AAA

A-4

52108HJ70

AAA

A-5

52108HK60

AAA

A-6

52108HK78

AAA

A-1A

52108HJ88

AAA

52108HJ96

AA+

52108HK29

52108HK37

AA-

52108HK45

A+

52108HK52

52108HK86

A-

52108HL28

BBB+

52108HL44

BBB

52108HL69

BBB-

52108HL85

BB+

52108HM27

52108HM43

BB-

52108HM68

B+

Page 25 of 26

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 have
changed during the 30 day window, or may not be being provided by the rating agency in an electronic format and therefore not being updated on
this 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-Sep-04
17-Sep-04

N/A

18-Oct-04

31-Aug-04

Commercial Mortgage Pass-Through Certificates

Series 2004-C6

ABN AMRO Acct: 722005.1

Rating Information

Class

CUSIP

Fitch

Moody's

S&P

Fitch

Moody's

S&P

Original Ratings

Rating Change/Change Date(1)

Statement Date:

52108HM84

52108HN26

B-

52108HN42

X-CL

52108HN67

AAA

X-CP

52108HN83

AAA

R-III

9absS081

9absS082

Page 26 of 26

NR - Designates that the class was not rated by the rating agency.

LB-UBS Commercial Mortgage Trust 2004-C6 8-K