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) April 16, 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 5. Other Events and Regulation FD Disclosure.

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 April 16, 2004.

Item 7. Financial Statements and Exhibits.

99.1 Monthly Distribution Report, Pursuant to Section 4.02 of the Pooling and Servicing Agreement for the distribution on April 16, 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

Date: April 20, 2004

By: /s/ Russell Goldenberg
Russell Goldenberg
Group Senior Vice President

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:

16-Apr-04
16-Apr-04

17-Mar-04

17-May-04

31-Mar-04

Administrator:
Kathryn Hawkinson 312.904.6561
kathryn.hawkinson@abnamro.com

Analyst:
Christina Clay 714.238.6767
Christina.Clay@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 Payoff/Loss Summary
Loan Level Detail

Realized Loss Detail
Historical REO Report
ASER Detail

Page 2-4
Page 5
Page 6
Page 7

Page 8

Page 9
Page 10-14

Page 15
Page 16

Page 17

Modified Loan Detail

Specially Serviced (Part I) ~ Loan Detail
Summary of Loan Maturity Extensions
Rating Information

Page 18

Page 19
Page 20
Page 21-22

Page(s)

Information is available for this issue from the following sources

Issue Id:

Monthly Data File
Name:

LUBS04C1

LUBS04C1_200404_3.ZIP

Closing Date:

First Payment Date:

Rated Final Payment: Date:

4-Feb-04
18-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 Rating Services/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

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:

5.858296%

16-Apr-04
16-Apr-04

17-Mar-04

17-May-04

31-Mar-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

113

REMIC III

Statement Date:

ABN AMRO Acct: 721668.1

982.200932092

7.831087190

0.000000000

974.369844902

2.426036275

Fixed

0.00

0.000000000

2.96400000%

0.000000000

52108HYG3

A-1

153,000,000.00

150,276,742.61

1,198,156.34

0.00

149,078,586.27

371,183.55

1000.000000000

0.000000000

1000.000000000

3.020000000

Fixed

0.00

0.000000000

3.62400000%

0.000000000

52108HYH1

A-2

213,000,000.00

0.00

213,000,000.00

643,260.00

1000.000000000

0.000000000

1000.000000000

3.634166637

Fixed

0.00

0.000000000

4.36100000%

0.000000000

52108HYJ7

A-3

113,000,000.00

0.00

113,000,000.00

410,660.83

1000.000000000

0.000000000

1000.000000000

3.806666662

Fixed

0.00

0.000000000

4.56800000%

0.000000000

52108HYK4

A-4

751,262,000.00

0.00

751,262,000.00

2,859,804.01

1000.000000000

0.000000000

1000.000000000

4.008333467

4.810000000%

0.00

0.000000000

4.81000000%

0.000000000

52108HYL2

12,463,000.00

0.00

12,463,000.00

49,955.86

1000.000000000

0.000000000

1000.000000000

4.038333467

4.846000000%

0.00

0.000000000

4.84600000%

0.000000000

52108HYM0

12,463,000.00

0.00

12,463,000.00

50,329.75

1000.000000000

0.000000000

1000.000000000

4.120833177

4.945000000%

0.00

0.000000000

4.94500000%

0.000000000

52108HYN8

16,023,000.00

0.00

16,023,000.00

66,028.11

1000.000000000

0.000000000

1000.000000000

4.149166862

4.979000000%

0.00

0.000000000

4.97900000%

0.000000000

52108HYP3

21,365,000.00

0.00

21,365,000.00

88,646.95

1000.000000000

0.000000000

1000.000000000

4.165833266

4.999000000%

0.00

0.000000000

4.99900000%

0.000000000

52108HYQ1

12,463,000.00

0.00

12,463,000.00

51,918.78

1000.000000000

0.000000000

1000.000000000

4.230833266

5.077000000%

0.00

0.000000000

5.07700000%

0.000000000

52108HYR9/U51394GB1/52108HYS7

24,926,000.00

0.00

24,926,000.00

105,457.75

1000.000000000

0.000000000

1000.000000000

4.506704453

5.219056145%

0.00

0.000000000

5.40804554%

0.000000000

52108HYT5/U51394GC9/52108HYU2

19,584,000.00

0.00

19,584,000.00

88,259.30

1000.000000000

0.000000000

1000.000000000

4.590037911

5.319056145%

0.00

0.000000000

5.50804554%

0.000000000

52108HYV0/U51394GD7/52108HYW8

14,244,000.00

0.00

14,244,000.00

65,380.50

1000.000000000

0.000000000

1000.000000000

4.715037758

5.469056145%

0.00

0.000000000

5.65804554%

0.000000000

52108HYX6/U51394GE5/52108HYY4

16,023,000.00

0.00

16,023,000.00

75,549.05

1000.000000000

0.000000000

1000.000000000

4.097500702

4.917000000%

0.00

0.000000000

4.91700000%

0.000000000

52108HYZ1/U51394GF2/52108HZA5

7,122,000.00

0.00

7,122,000.00

29,182.40

1000.000000000

0.000000000

1000.000000000

4.097500468

4.917000000%

0.00

0.000000000

4.91700000%

0.000000000

52108HZB3/U51394GG0/52108HZC1

5,341,000.00

0.00

5,341,000.00

21,884.75

1000.000000000

0.000000000

1000.000000000

4.097500702

4.917000000%

0.00

0.000000000

4.91700000%

0.000000000

52108HZD9/U51394GH8/52108HZE7

3,561,000.00

0.00

3,561,000.00

14,591.20

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

Negative

Closing

Interest

Pass-Through

Per $ 1000

Next Rate(3)

WAC:
WAMM:

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

5.858296%

16-Apr-04
16-Apr-04

17-Mar-04

17-May-04

31-Mar-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

113

REMIC III

Statement Date:

ABN AMRO Acct: 721668.1

1000.000000000

0.000000000

1000.000000000

4.097500702

4.917000000%

0.00

0.000000000

4.91700000%

0.000000000

52108HZF4/U51394GJ4/52108HZG2

7,122,000.00

0.00

7,122,000.00

29,182.40

1000.000000000

0.000000000

1000.000000000

4.097500000

4.917000000%

0.00

0.000000000

4.91700000%

0.000000000

52108HZH0/U51394GK1/52108HZJ6

3,560,000.00

0.00

3,560,000.00

14,587.10

1000.000000000

0.000000000

1000.000000000

4.097501404

4.917000000%

0.00

0.000000000

4.91700000%

0.000000000

52108HZK3/U51394GL9/52108HZL1

1,781,000.00

0.00

1,781,000.00

7,297.65

1000.000000000

0.000000000

1000.000000000

4.095726576

4.917000000%

0.00

)

(28.42

)

(0.001773588

4.91700000%

0.000000000

52108HZM9/U51394GM7/52108HZN7

16,024,014.00

0.00

16,024,014.00

65,629.98

998.088039219

0.000000000

997.246830474

0.222290392

0.246927905%

0.00

0.000000000

0.26725946%

0.000000000

52108HZP2/U51394GN5/52108HZQ0

X-CL

1,424,327,014.00

1,421,603,756.61

0.00

1,420,405,600.27

316,614.21

1000.000000000

0.000000000

1000.000000000

1.036024210

1.054229055%

0.00

0.000000000

1.24322905%

0.000000000

52108HZR8/U51394GP0/52108HZS6

X-CP

1,233,063,000.00

0.00

1,233,063,000.00

1,277,483.12

996.814329622

0.000000000

995.375139838

0.830678617

Fixed

0.00

0.000000000

1.00000000%

0.000000000

52108HZT4/U51394GQ8/52108HZU1

X-ST

229,674,914.00

228,943,245.43

0.00

228,612,699.64

190,786.04

0.000000000

0.00

0.000000000

N/A

0.000000000

9ABSP688

R-III

0.00

0.000000000

0.00

0.000000000

N/A

0.000000000

9ABSP686

R-I

0.00

0.000000000

0.00

0.000000000

N/A

0.000000000

9ABSP687

R-II

0.00

Total P&I Payment

0.00

)

(28.42

1,424,327,014.00

1,421,603,756.61

8,091,829.63

Total

1,420,405,600.27

1,198,156.34

0.00

6,893,673.29

Page 3 of 22

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:

5.858296%

16-Apr-04
16-Apr-04

17-Mar-04

17-May-04

31-Mar-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

113

Grantor Trust

Statement Date:

ABN AMRO Acct: 721668.1

0.000000000

0.00

0.000000000

N/A

0.000000000

9ABSP689

0.00

Total P&I Payment

0.00

Total

0.00

Page 4 of 22

LB-UBS Commercial Mortgage Trust

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

16-Apr-04
16-Apr-04

17-Mar-04

17-May-04

31-Mar-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

5,333,855.11

0.00
0.00

Less ASER Interest Adv Reduction

0.00

Less Other Adjustment

0.00

Total

6,931,156.95

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

)

(28.42

)

(28.42

6,895,272.59

)

(1,599.30

0.00
0.00
0.00

)

(1,599.30

794,446.56
403,709.78

1,198,156.34

0.00
0.00
0.00
0.00
0.00
0.00

1,198,156.34

8,093,428.93

8,091,829.63

1,421,603,757.10

103

1,198,156.34

0.00

0.00
0.00

0.00

1,420,405,600.76

103

0.00

403,709.78

1,597,301.84

403,709.78

1,597,301.84

35,855.94

0.00
0.00

8,989.17

44,845.11

0.00
0.00
0.00
0.00
0.00
0.00

0.00

Advance Summary (Advance Made by Servicer)

)

(35,855.94

6,893,673.29

Interest Not Advanced (

Current Period

)

0.00

1,597,301.84

Workout Fees
Liquidation Fees

0.00
0.00

Less Non Recovered

0.00

0.00
0.00

0.00

Page 5 of 22

LB-UBS Commercial Mortgage Trust

Class

Accrued

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

16-Apr-04
16-Apr-04

17-Mar-04

17-May-04

31-Mar-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

A-1

371,183.55

0.00

13.63%

13.66%

30/360

2.964000000%

0.00

A-2

643,260.00

0.00

13.63%

13.66%

30/360

3.624000000%

0.00

A-3

410,660.83

0.00

13.63%

13.66%

30/360

4.361000000%

0.00

A-4

2,859,804.01

0.00

13.63%

13.66%

30/360

4.568000000%

0.00

49,955.86

0.00

12.75%

12.79%

30/360

4.810000000%

0.00

50,329.75

0.00

11.88%

11.91%

30/360

4.846000000%

0.00

66,028.11

0.00

10.75%

10.78%

30/360

4.945000000%

0.00

88,646.95

0.00

9.25%

9.28%

30/360

4.979000000%

0.00

51,918.78

0.00

8.38%

8.40%

30/360

4.999000000%

0.00

105,457.75

0.00

6.63%

6.64%

30/360

5.077000000%

0.00

88,259.30

0.00

5.25%

5.26%

30/360

5.408045544%

0.00

65,380.50

0.00

4.25%

4.26%

30/360

5.508045544%

0.00

75,549.05

0.00

3.13%

30/360

5.658045544%

0.00

29,182.40

0.00

2.63%

30/360

4.917000000%

0.00

21,884.75

0.00

2.25%

2.26%

30/360

4.917000000%

0.00

14,591.20

0.00

2.00%

2.01%

30/360

4.917000000%

0.00

29,182.40

0.00

1.50%

30/360

4.917000000%

0.00

14,587.10

0.00

1.25%

30/360

4.917000000%

0.00

7,297.65

0.00

1.13%

30/360

4.917000000%

0.00

65,658.40

65,629.98

28.42

0.00%

30/360

4.917000000%

)

(28.42

0.00

X-CL

316,614.21

0.00

30/360

0.267259459%

0.00

X-CP

1,277,483.12

0.00

30/360

1.243229055%

0.00

X-ST

190,786.04

0.00

30/360

1.000000000%

0.00

0.000000000%

0.00

6,893,701.71

6,893,673.29

28.42

)

(28.42

0.00

(2) Accrued - Deductions + Additions Interest

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

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:

16-Apr-04
16-Apr-04

17-Mar-04

17-May-04

31-Mar-04

Commercial Mortgage Pass-Through Certificates

Series 2004-C1

ABN AMRO Acct: 721668.1

Interest Adjustments Summary

Statement Date:

0.00

Net Prepayment Interest Shortfalls Allocated to the Bonds

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

28.42

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

28.42

Shortfall Allocated to the Bonds:

Excess Allocated to the Bonds:

Other Interest Proceeds Due the Bonds

0.00

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

)

(28.42

)

(28.42

Aggregate Interest Adjustment Allocated to the Bonds

0.00

Prepayment Interest Excess Due the Bonds

0.00

ARD Excess Interest

0.00

Other Interest Loss

0.00

Page 7 of 22

LB-UBS Commercial Mortgage Trust

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

16-Apr-04
16-Apr-04

17-Mar-04

17-May-04

31-Mar-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

Delinquency Aging Categories

Special Event Categories (1)

Statement Date:

ABN AMRO Acct: 721668.1

0.00%

16-Apr-04

0.00%

17-Mar-04

0.00%

18-Feb-04

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

Page 8 of 22

LB-UBS Commercial Mortgage Trust

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

16-Apr-04
16-Apr-04

17-Mar-04

17-May-04

31-Mar-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: 721668.1

Series 2004-C1

16-Apr-04

103

100.00%

1,420,405,601

99.72%

0.00%

113

112

5.86%

5.82%

17-Mar-04

103

100.00%

1,421,603,757

99.81%

0.00%

114

113

5.67%

5.63%

18-Feb-04

103

100.00%

1,423,152,035

99.92%

0.00%

115

114

5.67%

5.63%

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

Page 9 of 22

LB-UBS Commercial Mortgage Trust

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

16-Apr-04
16-Apr-04

17-Mar-04

17-May-04

31-Mar-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

Operating
Statement

Date

Geo.

Location

Ending

Principal

Balance

Note
Rate

Scheduled

P&I

Prepayment

Amount

Prepayment

Date

Loan

Status

Code (1)

Statement Date:

6.00000%

11-Oct-16

LUBS04CB

Office

0.00

228,612,700

1,513,419

5.24679%

8-Jan-14

LUBS04CA

Office

0.00

200,000,000

903,614

4.65000%

11-May-13

LUBS04CA

Office

0.00

129,548,111

656,933

5.36040%

11-Sep-08

LUBS04CA

Office

0.00

60,000,000

276,954

4.57500%

11-Dec-08

LUBS04CA

Retail

0.00

56,716,706

291,356

6.65000%

11-Dec-13

LUBS04CA

Industrial

0.00

46,103,480

296,909

6.20000%

11-Nov-13

LUBS04CA

Retail

0.00

39,820,299

244,988

6.14000%

11-Jan-14

LUBS04CA

Office

0.00

29,917,467

182,574

5.36000%

11-Jan-09

LUBS04CA

Office

0.00

29,000,000

133,851

5.82000%

11-Nov-13

LUBS04CA

Retail

0.00

22,091,758

130,542

5.57500%

11-Dec-13

LUBS04CA

Mobile home park

0.00

20,000,000

96,014

5.24250%

1-Nov-08

LUBS04CA

Retail

0.00

19,144,115

106,210

5.69000%

11-Sep-15

LUBS04CA

Retail

0.00

18,618,403

108,706

6.17000%

11-Jan-14

LUBS04CA

Office

0.00

17,452,163

106,842

5.64000%

11-Jan-09

LUBS04CA

Office

0.00

16,449,577

95,140

5.70000%

11-Nov-13

LUBS04CA

Mobile home park

0.00

16,480,000

80,889

6.21000%

11-Apr-13

LUBS04CA

Office

0.00

16,322,697

101,164

5.94000%

11-Jan-14

LUBS04CA

Other

0.00

14,837,043

95,455

7.25000%

1-Jan-16

LUBS04CA

Retail

0.00

14,220,676

150,171

6.32000%

11-Oct-18

LUBS04CA

Retail

0.00

13,741,751

91,964

6.74000%

11-Feb-14

LUBS04CA

Retail

0.00

13,726,193

89,091

6.22300%

11-Oct-15

LUBS04CA

Retail

0.00

13,702,383

84,573

6.36000%

11-Oct-13

LUBS04CA

Office

0.00

12,914,788

84,064

6.01000%

11-Jan-14

LUBS04CA

Retail

0.00

12,564,365

75,624

5.39000%

11-Oct-10

LUBS04CA

Multifamily

0.00

12,520,294

70,674

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 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:

16-Apr-04
16-Apr-04

17-Mar-04

17-May-04

31-Mar-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

Operating
Statement

Date

Geo.

Location

Ending

Principal

Balance

Note
Rate

Scheduled

P&I

Prepayment

Amount

Prepayment

Date

Loan

Status

Code (1)

Statement Date:

5.36400%

11-Oct-13

LUBS04CA

Retail

0.00

11,724,942

65,996

5.32000%

11-Sep-08

LUBS04CA

Multifamily

0.00

11,710,516

65,673

5.45000%

11-Oct-13

LUBS04CA

Retail

0.00

11,428,175

64,935

5.57000%

11-Oct-10

LUBS04CA

Retail

0.00

10,301,905

59,307

6.06000%

11-Sep-13

LUBS04CA

Retail

0.00

9,043,987

54,938

5.67000%

11-Nov-13

LUBS04CA

Retail

0.00

8,307,974

48,305

5.26000%

11-Oct-13

LUBS04CA

Retail

0.00

8,172,827

49,487

5.97000%

11-Dec-08

LUBS04CA

Retail

0.00

8,169,658

49,005

5.16000%

11-Nov-13

LUBS04CA

Retail

0.00

8,154,129

44,825

6.09000%

11-Nov-13

LUBS04CA

Industrial

0.00

7,963,190

48,428

5.79000%

11-Nov-13

LUBS04CA

Multifamily

0.00

7,811,480

46,010

5.81000%

11-Oct-13

LUBS04CA

Multifamily

0.00

7,754,927

45,816

6.26000%

11-Nov-13

LUBS04CA

Office

0.00

7,317,410

45,303

6.27000%

11-Sep-13

LUBS04CA

Multifamily

0.00

7,254,801

45,042

6.58000%

11-Nov-17

LUBS04CA

Industrial

0.00

7,220,055

46,207

5.81000%

11-Oct-13

LUBS04CA

Multifamily

0.00

7,083,828

41,852

6.05000%

11-Nov-13

LUBS04CA

Retail

0.00

6,743,556

40,838

6.44000%

11-Sep-13

LUBS04CA

Office

0.00

6,560,649

41,456

5.95000%

11-Dec-13

LUBS04CA

Retail

0.00

6,077,328

36,377

5.50000%

11-Oct-10

LUBS04CA

Retail

0.00

6,000,000

28,417

6.01000%

11-Nov-13

LUBS04CA

Office

0.00

5,324,954

32,110

6.34000%

11-Sep-13

LUBS04CA

Retail

0.00

5,267,689

32,944

6.19000%

11-Nov-13

LUBS04CA

Retail

0.00

5,222,294

32,926

4.80000%

11-Sep-08

LUBS04CA

Retail

0.00

4,957,857

26,233

5.76000%

11-Aug-13

LUBS04CA

Retail

0.00

4,861,645

28,626

Page 11 of 22

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:

16-Apr-04
16-Apr-04

17-Mar-04

17-May-04

31-Mar-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

Operating
Statement

Date

Geo.

Location

Ending

Principal

Balance

Note
Rate

Scheduled

P&I

Prepayment

Amount

Prepayment

Date

Loan

Status

Code (1)

Statement Date:

5.86000%

11-Dec-13

LUBS04CA

Industrial

0.00

4,861,498

28,820

6.05000%

11-Nov-13

LUBS04CA

Multifamily

0.00

4,777,722

28,933

5.69000%

11-Nov-13

LUBS04CA

Industrial

0.00

4,775,943

27,829

6.38000%

11-Oct-15

LUBS04CA

Retail

0.00

4,775,583

29,961

5.77000%

11-Jan-29

LUBS04CA

Retail

0.00

4,540,186

28,742

6.05000%

11-Sep-13

LUBS04CA

Mobile home park

0.00

4,530,374

27,486

6.01000%

11-Oct-13

LUBS04CA

Office

0.00

4,226,500

25,508

6.00000%

11-Oct-13

LUBS04CA

Retail

0.00

3,977,834

23,982

6.12000%

11-Jan-14

LUBS04CA

Retail

0.00

3,873,269

23,587

5.29000%

11-Sep-13

LUBS04CA

Industrial

0.00

3,870,241

21,633

6.29000%

11-Jan-14

LUBS04CA

Office

0.00

3,690,143

22,878

5.59500%

11-Dec-13

LUBS04CA

Retail

0.00

3,685,136

21,229

5.99000%

11-Sep-13

LUBS04CA

Multifamily

0.00

3,476,963

20,962

6.10000%

11-Sep-13

LUBS04CA

Multifamily

0.00

3,383,117

20,634

5.59500%

11-Dec-13

LUBS04CA

Retail

0.00

3,346,502

19,278

5.59500%

11-Dec-13

LUBS04CA

Retail

0.00

3,346,502

19,278

6.14000%

11-Nov-13

LUBS04CA

Retail

0.00

3,344,707

20,448

6.31000%

11-Nov-13

LUBS04CA

Retail

0.00

3,325,352

20,695

6.37500%

11-Jan-14

LUBS04CA

Self storage

0.00

3,237,231

21,691

5.69000%

11-Nov-10

LUBS04CA

Retail

0.00

3,213,812

18,726

6.33000%

11-Oct-13

LUBS04CA

Retail

0.00

3,199,838

21,434

6.17000%

11-Dec-13

LUBS04CA

Retail

0.00

3,084,050

18,896

6.23000%

11-Nov-28

LUBS04CA

Retail

0.00

3,006,758

19,931

6.25000%

11-Jan-14

LUBS04CA

Retail

0.00

2,991,939

18,472

5.59500%

11-Dec-13

LUBS04CA

Retail

0.00

2,987,948

17,213

Page 12 of 22

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:

16-Apr-04
16-Apr-04

17-Mar-04

17-May-04

31-Mar-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

Operating
Statement

Date

Geo.

Location

Ending

Principal

Balance

Note
Rate

Scheduled

P&I

Prepayment

Amount

Prepayment

Date

Loan

Status

Code (1)

Statement Date:

5.34000%

11-Oct-08

LUBS04CA

Multifamily

0.00

2,881,460

16,176

5.92000%

11-Nov-13

LUBS04CA

Multifamily

0.00

2,836,397

16,941

6.13000%

11-Nov-13

LUBS04CA

Retail

0.00

2,787,228

17,022

6.31000%

11-Nov-13

LUBS04CA

Retail

0.00

2,713,049

16,885

6.25000%

11-Jan-14

LUBS04CA

Office

0.00

2,711,694

16,741

6.00000%

11-Jan-14

LUBS04CA

Retail

0.00

2,692,348

16,188

5.93000%

11-Oct-13

LUBS04CA

Multifamily

0.00

2,635,085

15,769

4.81000%

11-Nov-08

LUBS04CA

Multifamily

0.00

2,584,392

13,657

5.76000%

11-Oct-13

LUBS04CA

Industrial

0.00

2,554,986

15,014

6.14000%

11-Dec-13

LUBS04CA

Retail

0.00

2,486,630

16,322

5.67000%

11-Nov-13

LUBS04CA

Mobile home park

0.00

2,487,417

14,463

6.33000%

11-Dec-13

LUBS04CA

Multifamily

0.00

2,292,153

14,281

5.34000%

11-Oct-08

LUBS04CA

Multifamily

0.00

2,285,296

12,829

6.16000%

11-Oct-13

LUBS04CA

Retail

0.00

2,237,969

13,722

6.41000%

11-Nov-13

LUBS04CA

Multifamily

0.00

2,190,562

13,776

6.23000%

11-Nov-28

LUBS04CA

Retail

0.00

2,185,288

14,486

6.11000%

11-Nov-13

LUBS04CA

Office

0.00

2,135,327

13,997

6.34000%

11-Dec-13

LUBS04CA

Retail

0.00

2,039,413

13,637

6.75000%

11-Sep-13

LUBS04CA

Industrial

0.00

1,993,854

13,004

6.44000%

11-Oct-13

LUBS04CA

Self storage

0.00

1,984,694

13,429

6.34000%

11-Jan-14

LUBS04CA

Multifamily

0.00

1,954,835

12,183

6.51000%

11-Oct-13

LUBS04CA

Retail

0.00

1,890,620

12,022

6.37500%

11-Jan-14

LUBS04CA

Self storage

0.00

1,693,321

11,346

6.44000%

11-Sep-13

LUBS04CA

Retail

0.00

1,665,013

10,521

5.85000%

11-Nov-13

LUBS04CA

Multifamily

0.00

1,617,127

9,587

100

Page 13 of 22

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:

16-Apr-04
16-Apr-04

17-Mar-04

17-May-04

31-Mar-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

Operating
Statement

Date

Geo.

Location

Ending

Principal

Balance

Note
Rate

Scheduled

P&I

Prepayment

Amount

Prepayment

Date

Loan

Status

Code (1)

Statement Date:

5.59500%

11-Dec-13

LUBS04CA

Retail

0.00

1,523,853

8,779

101

6.47000%

11-Sep-13

LUBS04CA

Self storage

0.00

1,491,116

9,451

102

6.03000%

11-Aug-08

LUBS04CA

Office

0.00

1,384,580

9,046

103

1,420,405,601

8,138,302

Page 14 of 22

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:

16-Apr-04
16-Apr-04

17-Mar-04

17-May-04

31-Mar-04

Commercial Mortgage Pass-Through Certificates

Series 2004-C1

ABN AMRO Acct: 721668.1

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 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:

16-Apr-04
16-Apr-04

17-Mar-04

17-May-04

31-Mar-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

Page 16 of 22

LB-UBS Commercial Mortgage Trust

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

16-Apr-04
16-Apr-04

17-Mar-04

17-May-04

31-Mar-04

Commercial Mortgage Pass-Through Certificates

Series 2004-C1

ABN AMRO Acct: 721668.1

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 17 of 22

LB-UBS Commercial Mortgage Trust

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

16-Apr-04
16-Apr-04

17-Mar-04

17-May-04

31-Mar-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:

Page 18 of 22

LB-UBS Commercial Mortgage Trust

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

16-Apr-04
16-Apr-04

17-Mar-04

17-May-04

31-Mar-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

Note
Rate

Maturity

Date

Remaining

Property

Type

Geo.

Location

NOI

DSCR

NOI
Date

Schedule

Actual

Life

Statement Date:

Loan

Status

Code(1)

Page 19 of 22

(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:

16-Apr-04
16-Apr-04

17-Mar-04

17-May-04

31-Mar-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:

0.00

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 20 of 22

LB-UBS Commercial Mortgage Trust

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

16-Apr-04
16-Apr-04

17-Mar-04

17-May-04

31-Mar-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

R-II

9ABSP687

A-1

52108HYG3

Aaa

AAA

A-2

52108HYH1

Aaa

AAA

A-3

52108HYJ7

Aaa

AAA

A-4

52108HYK4

Aaa

AAA

52108HYL2

Aa1

AA+

52108HYM0

Aa2

52108HYN8

Aa3

AA-

52108HYP3

A+

52108HYQ1

52108HYR9

A-

52108HYT5

Baa1

BBB+

52108HYV0

Baa2

BBB

52108HYX6

Baa3

BBB-

52108HYZ1

Ba1

BB+

52108HZB3

Ba2

52108HZD9

Ba3

BB-

52108HZF4

B+

52108HZH0

52108HZK3

B-

52108HZM9

Page 21 of 22

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:

16-Apr-04
16-Apr-04

17-Mar-04

17-May-04

31-Mar-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

Aaa

AAA

X-CP

52108HZR8

Aaa

AAA

X-ST

52108HZT4

Aaa

AAA

R-III

9ABSP688

9ABSP689

Page 22 of 22

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

STRUCTURED ASSET SEC CORP II LB UBS COMM MORT TR 2004 C1 8-K