ABN AMRO

LASALLE BANK

N.A.

LB-UBS COMMERCIAL MORTGAGE TRUST

STATEMENT DATE:

04/17/2003

COMMERCIAL MORTGAGE PASS-THROUGH CERTIFICATES

PAYMENT DATE:

04/17/2003

135 S. LASALLE STREET SUITE 1625

CHICAGO, IL 60603-4159

USA

SERIES 2003-C1

PRIOR PAYMENT:

N/A

NEXT PAYMENT:

05/16/2003

RECORD DATE:

03/31/2003

ABN AMRO ACCT: 67-9178-50-9

ADMINISTRATOR:

REPORTING PACKAGE TABLE OF CONTENTS

ANALYST:

MARC MARIER 312 904-7979

HUNG HUYNH 714-238-6716

MARC.MARIER@ABNAMRO.COM

HUNG.B.HUYNH@ABNAMRO.COM

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

PAGE(S)

ISSUE ID:

LUBS03C1

CLOSING DATE:

3/20/2003

STATEMENTS TO CERTIFICATEHOLDERS

PAGE 2-4

CASH RECONCILIATION SUMMARY

PAGE 5

FIRST PAYMENT DATE:

4/17/2003

MONTHLY DATA FILE NAME:

BOND INTEREST RECONCILIATION

PAGE 6

ASSUMED FINAL PAYMENT: DATE:

12/17/2036

LUBS03C1_200304_3.ZIP

ASSET-BACKED FACTS ~ 15 MONTH LOAN STATUS SUMMARY

PAGE 7

ASSET-BACKED FACTS ~ 15 MONTH PAYOFF/LOSS SUMMARY

PAGE 8

DELINQUENT LOAN DETAIL

PAGE 9

HISTORICAL COLLATERAL PREPAYMENT

PAGE 10

LOAN LEVEL DETAIL

PAGE 11-15

MORTGAGE LOAN CHARACTERISTICS

PAGE 16-18

SPECIALLY SERVICED (PART I) ~ LOAN DETAIL

PAGE 19

SPECIALLY SERVICED LOAN DETAIL (PART II) ~ SERVICER COMMENTS

PAGE 20

HISTORICAL REO REPORT

PAGE 21

RATING INFORMATION

PAGE 22-23

MODIFIED LOAN DETAIL

PAGE 24

REALIZED LOSS DETAIL

PAGE 25

APPRAISAL REDUCTION DETAIL

PAGE 26

PARTIES TO THE TRANSACTION

DEPOSITOR: STRUCTURED ASSET SECURITIES CORPORATION

UNDERWRITER: LEHMAN BROTHERS INC./UBS ASSET SECURITIZATION CORP.

MASTER SERVICER: WACHOVIA BANK, NATIONAL ASSOCIATION

SPECIAL SERVICER: LENNAR PARTNERS, INC.

RATING AGENCY: STANDARD & POOR'S RATING SERVICES/FITCH RATINGS

INFORMATION IS AVAILABLE FOR THIS ISSUE FROM THE FOLLOWING SOURCES

LASALLE WEB SITE

WWW.ETRUSTEE.NET

SERVICER WEB SITE

WWW.WACHOVIA.COM

LASALLE FACTOR LINE

(800) 246-5761

04/15/2003 - 10:16 (K568-K627) 2003 LASALLE BANK N.A.

PAGE 1 OF 26

FORM 8-K

	ABN AMRO
	LASALLE BANK		N.A.
LB-UBS COMMERCIAL MORTGAGE TRUST
										COMMERCIAL MORTGAGE PASS-THROUGH CERTIFICATES																										STATEMENT DATE:									04/17/2003
										SERIES 2003-C1																										PAYMENT DATE:						04/17/2003
WAC:						5.905235%																														PRIOR PAYMENT:							N/A
																																				NEXT PAYMENT:								05/16/2003
WAMM:						104
																																				RECORD DATE:									03/31/2003
										REMIC III
										ABN AMRO ACCT: 67-9178-50-9
									ORIGINAL							OPENING		PRINCIPAL			PRINCIPAL			NEGATIVE				CLOSING					INTEREST			INTEREST				PASS-THROUGH
				CLASS				FACE VALUE (1)								BALANCE		PAYMENT			ADJ. OR LOSS			AMORTIZATION				BALANCE					PAYMENT (2)			ADJUSTMENT				RATE
			CUSIP												PER $ 1000				PER $ 1000			PER $ 1000			PER $ 1000				PER $ 1000					PER $ 1000		PER $ 1000		NEXT RATE(3)
	A-1						110,000,000.00					110,000,000.00					862,502.01			0.00			0.00				109,137,497.99				249,333.33				0.00				2.72000000%
	52108HPK4													1000.000000000			7.840927364			0.000000000			0.000000000				992.159072636					2.266666636			0.000000000						FIXED
	A-2						180,000,000.00					180,000,000.00					0.00			0.00			0.00				180,000,000.00				498,450.00				0.00				3.32300000%
	52108HPL2													1000.000000000			0.000000000			0.000000000			0.000000000				1000.000000000					2.769166667			0.000000000						FIXED
	A-3						105,000,000.00					105,000,000.00					0.00			0.00			0.00				105,000,000.00				358,312.50				0.00				4.09500000%
	52108HPM0													1000.000000000			0.000000000			0.000000000			0.000000000				1000.000000000					3.412500000			0.000000000						FIXED
	A-4						537,549,000.00					537,549,000.00					0.00			0.00			0.00				537,549,000.00				1,968,325.26				0.00				4.39400000%
	52108HPN8													1000.000000000			0.000000000			0.000000000			0.000000000				1000.000000000					3.661666676			0.000000000						FIXED
	A-1B						203,986,000.00					203,986,000.00					92,095.07			0.00			0.00				203,893,904.93				654,455.08				0.00				3.85000000%
	52108HQG2/U51394DA6/52108HQW7													1000.000000000			0.451477405			0.000000000			0.000000000				999.548522595					3.208333317			0.000000000						FIXED
	B						25,714,000.00					25,714,000.00					0.00			0.00			0.00				25,714,000.00				95,977.51				0.00				4.47900000%
	52108HPP3													1000.000000000			0.000000000			0.000000000			0.000000000				1000.000000000					3.732500194			0.000000000						FIXED
	C						25,713,000.00					25,713,000.00					0.00			0.00			0.00				25,713,000.00				96,402.32				0.00				4.49900000%
	52108HPQ1													1000.000000000			0.000000000			0.000000000			0.000000000				1000.000000000					3.749166569			0.000000000						FIXED
	D						20,571,000.00					20,571,000.00					0.00			0.00			0.00				20,571,000.00				77,792.67				0.00				4.53800000%
	52108HPR9													1000.000000000			0.000000000			0.000000000			0.000000000				1000.000000000					3.781666910			0.000000000						FIXED
	E						18,856,000.00					18,856,000.00					0.00			0.00			0.00				18,856,000.00				71,778.51				0.00				4.56800000%
	52108HPS7													1000.000000000			0.000000000			0.000000000			0.000000000				1000.000000000					3.806666843			0.000000000						FIXED
	F						17,143,000.00					17,143,000.00					0.00			0.00			0.00				17,143,000.00				65,543.40				0.00				4.58800000%
	52108HPT5													1000.000000000			0.000000000			0.000000000			0.000000000				1000.000000000					3.823333139			0.000000000						FIXED
	G						18,856,000.00					18,856,000.00					0.00			0.00			0.00				18,856,000.00				72,465.61				0.00				4.61172741%
	52108HPU2													1000.000000000			0.000000000			0.000000000			0.000000000				1000.000000000					3.843106173			0.000000000						FIXED
	H						18,857,000.00					18,857,000.00					0.00			0.00			0.00				18,857,000.00				81,289.38				0.00				5.17300000%
	52108HPV0/U51394CP4/52108HQK3													1000.000000000			0.000000000			0.000000000			0.000000000				1000.000000000					4.310833112			0.000000000						5.173000000%
	J						11,999,000.00					11,999,000.00					0.00			0.00			0.00				11,999,000.00				53,275.56				0.00				5.32800000%
	52108HPW8/U51394CQ2/52108HQL1													1000.000000000			0.000000000			0.000000000			0.000000000				1000.000000000					4.440000000			0.000000000						5.328000000%
	K						10,286,000.00					10,286,000.00					0.00			0.00			0.00				10,286,000.00				47,572.75				0.00				5.55000000%
	52108HPX6/U51394CR0/52108HQM9													1000.000000000			0.000000000			0.000000000			0.000000000				1000.000000000					4.625000000			0.000000000						5.550000000%
	L						18,856,000.00					18,856,000.00					0.00			0.00			0.00				18,856,000.00				71,479.95				0.00				4.54900000%
	52108HPY4/U51394CS8/52108HQN7													1000.000000000			0.000000000			0.000000000			0.000000000				1000.000000000					3.790833157			0.000000000						FIXED
	M						6,857,000.00					6,857,000.00					0.00			0.00			0.00				6,857,000.00				25,993.74				0.00				4.54900000%
	52108HPZ1/U51394CT6/52108HQP2													1000.000000000			0.000000000			0.000000000			0.000000000				1000.000000000					3.790832726			0.000000000						FIXED
	N						6,857,000.00					6,857,000.00					0.00			0.00			0.00				6,857,000.00				25,993.74				0.00				4.54900000%
	52108HQA5/U51394CU3/52108HQQ0													1000.000000000			0.000000000			0.000000000			0.000000000				1000.000000000					3.790832726			0.000000000						FIXED
	P						10,286,000.00					10,286,000.00					0.00			0.00			0.00				10,286,000.00				38,992.51				0.00				4.54900000%
	52108HQB3/U51394CV1/52108HQR8													1000.000000000			0.000000000			0.000000000			0.000000000				1000.000000000					3.790833171			0.000000000						FIXED
	Q						5,142,000.00					5,142,000.00					0.00			0.00			0.00				5,142,000.00				19,492.47				0.00				4.54900000%
	52108HQC1/U51394CW9/52108HQS6													1000.000000000			0.000000000			0.000000000			0.000000000				1000.000000000					3.790834306			0.000000000						FIXED
	S						5,143,000.00					5,143,000.00					0.00			0.00			0.00				5,143,000.00				19,496.26				0.00				4.54900000%
	52108HQD9/U51394CX7/52108HQT4													1000.000000000			0.000000000			0.000000000			0.000000000				1000.000000000					3.790834143			0.000000000						FIXED
	T						13,714,381.00					13,714,381.00					0.00			0.00			0.00				13,714,381.00				51,988.93				0.00				4.54900000%
	52108HQE7/52108HQU1													1000.000000000			0.000000000			0.000000000			0.000000000				1000.000000000					3.790833141			0.000000000						FIXED
	X-CL						1,371,385,381.00				N	1,371,385,381.00					0.00			0.00			0.00				1,370,430,783.92				286,001.04				0.00				0.25025879%
	52108HQH0/U51394DB4/52108HQX5													1000.000000000			0.000000000			0.000000000			0.000000000				999.303917707					0.208548993			0.000000000						FIXED
	X-CP						1,236,577,000.00				N	1,236,577,000.00					0.00			0.00			0.00				1,236,577,000.00				1,708,174.00				0.00				1.65764752%
	52108HQJ6/U51394DC2/52108HQY3													1000.000000000			0.000000000			0.000000000			0.000000000				1000.000000000					1.381372935			0.000000000						FIXED
	R-III						0.00					0.00					0.00			0.00			0.00				0.00				0.00				0.00				N/A
	9ABSK618													0.000000000			0.000000000			0.000000000			0.000000000				0.000000000					0.000000000			0.000000000
		TOTAL			1,371,385,381.00								1,371,385,381.00				954,597.08			0.00			0.00				1,370,430,783.92				6,638,586.52				0.00
																										TOTAL P&I PAYMENT				7,593,183.60
	V						0.00					0.00					0.00			0.00			0.00				0.00				0.00				0.00				N/A
	9ABSK620													0.000000000			0.000000000			0.000000000			0.000000000				0.000000000					0.000000000			0.000000000
		TOTAL			0.00								0.00				0.00			0.00			0.00				0.00				0.00				0.00
																										TOTAL P&I PAYMENT				0.00
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
04/15/2003 - 10:16 (K568-K627) 2003 LASALLE BANK N.A.																																					PAGE 2 OF 26

CURRENT REPORT
Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934

		ABN AMRO
		LASALLE BANK	N.A.
	LB-UBS COMMERCIAL MORTGAGE TRUST
	COMMERCIAL MORTGAGE PASS-THROUGH CERTIFICATES																														STATEMENT DATE:					04/17/2003
																																		PAYMENT DATE:								04/17/2003
					SERIES 2003-C1																													PRIOR PAYMENT:								N/A
																																		NEXT PAYMENT:								05/16/2003
																																		RECORD DATE:								03/31/2003
					ABN AMRO ACCT: 67-9178-50-9
CASH RECONCILIATION SUMMARY
				INTEREST SUMMARY								PRINCIPAL SUMMARY																		SERVICING FEE SUMMARY
				CURRENT SCHEDULED INTEREST		6,680,544.84				SCHEDULED PRINCIPAL:
				LESS DEFERRED INTEREST		0.00				CURRENT SCHEDULED PRINCIPAL							936,875.17								CURRENT SERVICING FEES									107,556.72
				LESS PPIS REDUCING SCHEDULED INT		0.00																			PLUS FEES ADVANCED FOR PPIS									0.00
										ADVANCED SCHEDULED PRINCIPAL							17,721.91								LESS REDUCTION FOR PPIS									0.00
				PLUS GROSS ADVANCE INTEREST		67,369.78				SCHEDULED PRINCIPAL										954,597.08
				LESS ASER INTEREST ADV REDUCTION					0.00																PLUS DELINQUENT SERVICING FEES									712.91
				LESS OTHER INTEREST NOT ADVANCED		0.00				UNSCHEDULED PRINCIPAL:
				LESS OTHER ADJUSTMENT		0.00				CURTAILMENTS							0.00									TOTAL SERVICING FEES									108,269.62
										PREPAYMENTS IN FULL							0.00
				TOTAL		6,747,914.62
				UNSCHEDULED INTEREST:						LIQUIDATION PROCEEDS							0.00
										REPURCHASE PROCEEDS							0.00
				PREPAYMENT PENALTIES		0.00
				YIELD MAINTENANCE PENALTIES		0.00				OTHER PRINCIPAL PROCEEDS							0.00
				OTHER INTEREST PROCEEDS		0.00				TOTAL UNSCHEDULED PRINCIPAL											0.00
				TOTAL		0.00				REMITTANCE PRINCIPAL							954,597.08
				LESS FEE PAID TO SERVICER		(107,556.72)					REMITTANCE P&I DUE TRUST								7,594,954.98
				LESS FEE STRIPS PAID BY SERVICER		0.00
											REMITTANCE P&I DUE CERTS							7,593,183.61
				LESS FEES & EXPENSES PAID BY/TO SERVICER																									PPIS SUMMARY
				SPECIAL SERVICING FEES			0.00						POOL BALANCE SUMMARY
				WORKOUT FEES		0.00										BALANCE								COUNT	GROSS PPIS									0.00
				LIQUIDATION FEES		0.00
										BEGINNING POOL				1,371,385,381.28									114		REDUCED BY PPIE									0.00
				INTEREST DUE SERV ON ADVANCES		0.00				SCHEDULED PRINCIPAL				954,597.08											REDUCED BY SHORTFALLS IN FEES									0.00
				NON RECOVERABLE ADVANCES		0.00				UNSCHEDULED PRINCIPAL				0.00								0			REDUCED BY OTHER AMOUNTS									0.00
				MISC. FEES & EXPENSES		0.00				DEFERRED INTEREST				0.00
										LIQUIDATIONS				0.00								0			PPIS REDUCING SCHEDULED INTEREST									0.00
																									PPIS REDUCING SERVICING FEE									0.00
				TOTAL UNSCHEDULED FEES & EXPENSES		0.00				REPURCHASES				0.00								0
				TOTAL INTEREST DUE TRUST		6,640,357.90				ENDING POOL					1,370,430,784.20							114				PPIS DUE CERTIFICATE									0.00
				LESS FEES & EXPENSES PAID BY/TO TRUST																								ADVANCE SUMMARY (ADVANCE MADE BY SERVICER)
																																	PRINCIPAL				INTEREST
				TRUSTEE FEE		(1,771.37)
				FEE STRIPS		0.00																					PRIOR OUTSTANDING					0.00									0.00
				MISC. FEES		0.00
				INTEREST RESERVE WITHHOLDING		0.00																					PLUS CURRENT PERIOD					17,721.91							67,369.78
				PLUS INTEREST RESERVE DEPOSIT		0.00																					LESS RECOVERED					0.00								0.00
				TOTAL				(1,771.37)																			LESS NON RECOVERED					0.00								0.00
																											ENDING OUTSTANDING					17,721.91						67,369.78
				TOTAL INTEREST DUE CERTS		6,638,586.53
		04/15/2003 - 10:16 (K568-K627) 2003 LASALLE BANK N.A.																																		PAGE 5 OF 26

Date of Report (Date of earliest event reported) June 17, 2003

	ABN AMRO
	LASALLE BANK		N.A.
					LB-UBS COMMERCIAL MORTGAGE TRUST
																	COMMERCIAL MORTGAGE PASS-THROUGH CERTIFICATES																																												STATEMENT DATE:				04/17/2003
																																																													PAYMENT DATE:				04/17/2003
																	SERIES 2003-C1
																																																													PRIOR PAYMENT:					N/A
																																																										NEXT PAYMENT:									05/16/2003
																																																										RECORD DATE:										03/31/2003
															ABN AMRO ACCT: 67-9178-50-9
																	BOND INTEREST RECONCILIATION
																								DEDUCTIONS																	ADDITIONS
																																																											REMAINING
								ACCRUAL						PASS						ACCRUED
DEFERRED &
						PRIOR						INT ACCRUAL				PREPAY-					OTHER			DISTRIBUTABLE					INTEREST				CURRENT PERIOD				OUTSTANDING
																																																															CREDIT SUPPORT
															THRU							CERTIFICATE						ALLOCABLE				ACCRETION				INTEREST		INT. SHORT-					ON PRIOR		MENT					INTEREST		CERTIFICATE			PAYMENT		(SHORTFALL)/			INTEREST
			CLASS			METHOD DAYS										RATE					INTEREST						PPIS				INTEREST				LOSS/EXP					FALLS DUE			SHORTFALL (3)			PENALTIES	PROCEEDS (1)
INTEREST (2)
				AMOUNT					RECOVERY				SHORTFALLS				ORIGINAL						CURRENT(4)
		A-1					30/360			30	2.720000000%								249,333.33							0.00				0.00				0.00					0.00			0.00			0.00			0.00			249,333.33			249,333.33		0.00				0.00				17.13%					17.14%
		A-2					30/360			30	3.323000000%								498,450.00							0.00				0.00				0.00					0.00			0.00			0.00			0.00			498,450.00			498,450.00		0.00				0.00				17.13%					17.14%
		A-3					30/360			30	4.095000000%								358,312.50							0.00				0.00				0.00					0.00			0.00			0.00			0.00			358,312.50			358,312.50		0.00				0.00				17.13%					17.14%
		A-4					30/360			30	4.394000000%								1,968,325.26							0.00				0.00				0.00					0.00			0.00			0.00			0.00			1,968,325.26			1,968,325.26		0.00				0.00				17.13%					17.14%
		A-1B					30/360			30	3.850000000%								654,455.08							0.00				0.00				0.00					0.00			0.00			0.00			0.00			654,455.08			654,455.08		0.00				0.00				17.13%					17.14%
		B					30/360			30	4.479000000%								95,977.51							0.00				0.00				0.00					0.00			0.00			0.00			0.00			95,977.51			95,977.51		0.00				0.00				15.25%					15.26%
		C					30/360			30	4.499000000%								96,402.32							0.00				0.00				0.00					0.00			0.00			0.00			0.00			96,402.32			96,402.32		0.00				0.00				13.38%					13.38%
		D					30/360			30	4.538000000%								77,792.67							0.00				0.00				0.00					0.00			0.00			0.00			0.00			77,792.67			77,792.67		0.00				0.00				11.88%					11.88%
		E					30/360			30	4.568000000%								71,778.51							0.00				0.00				0.00					0.00			0.00			0.00			0.00			71,778.51			71,778.51		0.00				0.00				10.50%					10.51%
		F					30/360			30	4.588000000%								65,543.40							0.00				0.00				0.00					0.00			0.00			0.00			0.00			65,543.40			65,543.40		0.00				0.00				9.25%					9.26%
		G					30/360			30	4.611727408%								72,465.61							0.00				0.00				0.00					0.00			0.00			0.00			0.00			72,465.61			72,465.61		0.00				0.00				7.88%					7.88%
		H					30/360			30	5.173000000%								81,289.38							0.00				0.00				0.00					0.00			0.00			0.00			0.00			81,289.38			81,289.38		0.00				0.00				6.50%					6.50%
		J					30/360			30	5.328000000%								53,275.56							0.00				0.00				0.00					0.00			0.00			0.00			0.00			53,275.56			53,275.56		0.00				0.00				5.63%					5.63%
		K					30/360			30	5.550000000%								47,572.75							0.00				0.00				0.00					0.00			0.00			0.00			0.00			47,572.75			47,572.75		0.00				0.00				4.88%					4.88%
		L					30/360			30	4.549000000%								71,479.95							0.00				0.00				0.00					0.00			0.00			0.00			0.00			71,479.95			71,479.95		0.00				0.00				3.50%					3.50%
		M					30/360			30	4.549000000%								25,993.74							0.00				0.00				0.00					0.00			0.00			0.00			0.00			25,993.74			25,993.74		0.00				0.00				3.00%					3.00%
		N					30/360			30	4.549000000%								25,993.74							0.00				0.00				0.00					0.00			0.00			0.00			0.00			25,993.74			25,993.74		0.00				0.00				2.50%					2.50%
		P					30/360			30	4.549000000%								38,992.51							0.00				0.00				0.00					0.00			0.00			0.00			0.00			38,992.51			38,992.51		0.00				0.00				1.75%					1.75%
		Q					30/360			30	4.549000000%								19,492.47							0.00				0.00				0.00					0.00			0.00			0.00			0.00			19,492.47			19,492.47		0.00				0.00				1.38%					1.38%
		S					30/360			30	4.549000000%								19,496.26							0.00				0.00				0.00					0.00			0.00			0.00			0.00			19,496.26			19,496.26		0.00				0.00				1.00%					1.00%
		T					30/360			30	4.549000000%								51,988.93							0.00				0.00				0.00					0.00			0.00			0.00			0.00			51,988.93			51,988.93		0.00				0.00				NA					NA
		X-CL					30/360			30	0.250258794%								286,001.04							0.00				0.00				0.00					0.00			0.00			0.00			0.00			286,001.04			286,001.04		0.00				0.00				NA					NA
		X-CP					30/360			30	1.657647522%								1,708,174.00							0.00				0.00				0.00					0.00			0.00			0.00			0.00			1,708,174.00			1,708,174.00		0.00				0.00				NA					NA
		V					30/360			30	0.000000000%								0.00							0.00				0.00				0.00					0.00			0.00			0.00			0.00			0.00			0.00		0.00				0.00				NA					NA
																		6,638,586.52							0.00				0.00					0.00			0.00					0.00		0.00					0.00		6,638,586.52		6,638,586.52			0.00				0.00
	(1) OTHER INTEREST PROCEEDS ARE ADDITIONAL INTEREST AMOUNTS SPECIFICALLY ALLOCATED TO THE BOND(S) AND USED IN DETERMINING THE BONDS DISTRIBUTABLE INTEREST.
	(2) ACCRUED - DEDUCTIONS + ADDITIONS INTEREST
	(3) WHERE APPLICABLE.
	(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).
																																																														PAGE 6 OF 26
	04/15/2003 - 10:16 (K568-K627) 2003 LASALLE BANK N.A.

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

		ABN AMRO
		LASALLE BANK		N.A.
		LB-UBS COMMERCIAL MORTGAGE TRUST
																																											STATEMENT DATE:					04/17/2003
												COMMERCIAL MORTGAGE PASS-THROUGH CERTIFICATES																															PAYMENT DATE:					04/17/2003
																																											SERIES 2003-C1
												PRIOR PAYMENT:									N/A
																																											NEXT PAYMENT:						05/16/2003
																																											RECORD DATE:							03/31/2003
												ABN AMRO ACCT: 67-9178-50-9
												ASSET-BACKED FACTS ~ 15 MONTH HISTORICAL LOAN STATUS SUMMARY
											DELINQUENCY AGING CATEGORIES																								SPECIAL EVENT CATEGORIES (1)
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
					04/17/03		0		0						0	0				0		0			0	0				0	0		0			0			0	0					0		0
						0.00%				0.00%			0.00%				0.00%			0.00%			0.00%	0.00%			0.00%	0.00%				0.00%		0.00%			0.00%		0.00%			0.00%				0.00%					0.00%
			(1) NOTE: MODIFICATION, SPECIALLY SERVICED & BANKRUPTCY TOTALS ARE INCLUDED IN THE APPROPRIATE DELINQUENCY AGING CATEGORY
				04/15/2003 - 10:16 (K568-K627) 2003 LASALLE BANK N.A.																																								PAGE 7 OF 26

Delaware
(State or other jurisdiction
of incorporation)

333-100864
(Commission
File Number)

82-0569805
(IRS Employer
Identification No.)

ABN AMRO

LASALLE BANK

N.A.

LB-UBS COMMERCIAL MORTGAGE TRUST

COMMERCIAL MORTGAGE PASS-THROUGH CERTIFICATES

STATEMENT DATE:

04/17/2003

PAYMENT DATE:

04/17/2003

SERIES 2003-C1

PRIOR PAYMENT:

N/A

NEXT PAYMENT:

05/16/2003

RECORD DATE:

03/31/2003

ABN AMRO ACCT: 67-9178-50-9

ASSET-BACKED FACTS ~ 15 MONTH HISTORICAL PAYOFF/LOSS SUMMARY

ENDING POOL (1)

PAYOFFS(2)

PENALTIES

APPRAISAL REDUCT. (2)

LIQUIDATIONS (2)

REALIZED LOSSES (2)

REMAINING TERM

CURR WEIGHTED AVG.

DISTRIBUTION

DATE

# BALANCE

# AMOUNT

# BALANCE

# AMOUNT

LIFE

AMORT

COUPON REMIT

04/17/03

114

1,370,430,784

104

310

5.91%

5.81%

100.00%

99.93%

0.00%

(1) PERCENTAGE BASED ON POOL AS OF CUTOFF. (2) PERCENTAGE BASED ON POOL AS OF BEGINNING OF PERIOD.

PAGE 8 OF 26

04/15/2003 - 10:16 (K568-K627) 2003 LASALLE BANK N.A.

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

10019
(Zip Code)

ABN AMRO

LASALLE BANK

N.A.

LB-UBS COMMERCIAL MORTGAGE TRUST

STATEMENT DATE:

04/17/2003

COMMERCIAL MORTGAGE PASS-THROUGH CERTIFICATES

PAYMENT DATE:

04/17/2003

PRIOR PAYMENT:

N/A

SERIES 2003-C1

NEXT PAYMENT:

05/16/2003

RECORD DATE:

03/31/2003

ABN AMRO ACCT: 67-9178-50-9

DELINQUENT LOAN DETAIL

DISCLOSURE

CONTROL #

PAID

THRU

DATE

CURRENT P&I

ADVANCE

OUTSTANDING

P&I

ADVANCES**

OUT. PROPERTY

PROTECTION

ADVANCES

ADVANCE

DESCRIPTION (1)

SPECIAL

SERVICER

TRANSFER DATE

FORECLOSURE

DATE

BANKRUPTCY

DATE

REO

DATE

03/10/03

36,898.46

0.00

03/10/03

26,001.16

0.00

03/10/03

22,192.07

0.00

TOTAL

85,091.69

A. P&I ADVANCE - LOAN IN GRACE PERIOD

1. P&I ADVANCE - LOAN DELINQ. 1 MONTH

3. P&I ADVANCE - LOAN DELINQUENT 3 + MONTHS

7. P &I ADVANCE (FORECLOSURE)

B. P&I ADVANCE - LATE PAYMENT BUT<1 MONTH DELINQ.

2. P&I ADVANCE - LOAN DELINQ. 2 MONTHS

4. MATURED BALLOON/ASSUMED SCHED. PAYMENT

9. P&I ADVANCE (REO)

** OUTSTANDING P&I ADVANCES INCLUDE THE CURRENT PERIOD P&I ADVANCE

04/15/2003 - 10:16 (K568-K627) 2003 LASALLE BANK N.A.

PAGE 9 OF 26

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

ABN AMRO

LASALLE BANK

N.A.

LB-UBS COMMERCIAL MORTGAGE TRUST

STATEMENT DATE:

04/17/2003

COMMERCIAL MORTGAGE PASS-THROUGH CERTIFICATES

PAYMENT DATE:

04/17/2003

SERIES 2003-C1

PRIOR PAYMENT:

N/A

NEXT PAYMENT:

05/16/2003

RECORD DATE:

03/31/2003

ABN AMRO ACCT: 67-9178-50-9

HISTORICAL COLLATERAL LEVEL PREPAYMENT REPORT

DISCLOSURE

CONTROL #

PAYOFF

PERIOD

INITIAL

BALANCE

TYPE

PAYOFF

AMOUNT

PENALTY

AMOUNT

PREPAYMENT

DATE

MATURITY

DATE

PROPERTY

TYPE

GEOGRAPHIC

LOCATION

CURRENT

CUMULATIVE

PAGE 10 OF 26

04/15/2003 - 10:16 (K568-K627) 2003 LASALLE BANK N.A.

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

		ABN AMRO
		LASALLE BANK	N.A.
	LB-UBS COMMERCIAL MORTGAGE TRUST
																				STATEMENT DATE:		04/17/2003
							COMMERCIAL MORTGAGE PASS-THROUGH CERTIFICATES															PAYMENT DATE:		04/17/2003
							SERIES 2003-C1															PRIOR PAYMENT:			N/A
																						NEXT PAYMENT:				05/16/2003
																						RECORD DATE:					03/31/2003
							ABN AMRO ACCT: 67-9178-50-9
							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)
				1		LUBS03CA		RETAIL		12/11/12	0.00		TX		184,168,833	5.22500%			1,018,714
				2		LUBS03CA		MULTIFAMILY		02/11/08	0.00		NY		111,000,000	5.59000%			534,311
				3		LUBS03CA		RETAIL		03/11/13	0.00		PA		84,858,327	5.05000%			499,381
				4		LUBS03CA		OFFICE		01/11/13	0.00		NY		84,727,325	5.52000%			481,473
				5		LUBS03CA		RETAIL		01/11/13	0.00		NJ		65,000,000	5.77300%			323,128
				6		LUBS03CA		OFFICE		02/11/13	0.00		NY		48,396,210	6.07000%			292,968
				7		LUBS03CB		MULTIFAMILY		01/11/08	0.00		NV		35,200,000	5.28000%			160,043
				8		LUBS03CA		OFFICE		02/11/13	0.00		MD		35,200,000	5.85500%			177,472
				9		LUBS03CA		RETAIL		02/11/08	0.00		DE		30,000,000	4.69000%			117,250
				10		LUBS03CB		MULTIFAMILY		01/11/08	0.00		GA		25,000,000	5.07000%			109,146
				11		LUBS03CA		OFFICE		01/11/13	0.00		MD		24,426,462	6.00000%			146,890
				12		LUBS03CB		MULTIFAMILY		01/11/08	0.00		TN		22,100,000	5.00000%			95,153
				13		LUBS03CA		RETAIL		12/11/12	0.00		VA		22,027,361	5.85000%			130,465
				14		LUBS03CA		OFFICE		01/11/08	0.00		LA		21,939,192	6.43000%			138,044
				15		LUBS03CB		MOBILE HOME PARK		02/11/13	0.00		CA		19,955,638	5.85000%			117,988
				16		LUBS03CA		OFFICE		02/11/13	0.00		VA		18,000,000	6.00000%			93,000
				17		LUBS03CA		OFFICE		01/11/13	0.00		MD		17,048,673	6.00000%			102,523
				18		LUBS03CA		RETAIL		12/11/17	0.00		TX		16,195,156	6.62000%			103,997
				19		LUBS03CA		OFFICE		02/11/13	0.00		MD		15,550,000	6.00000%			80,342
				20		LUBS03CB		MULTIFAMILY		02/11/10	0.00		WA		15,310,000	5.80000%			76,465
				21		LUBS03CA		RETAIL		12/11/17	0.00		TX		14,946,737	6.38000%			93,630
				22		LUBS03CA		RETAIL		12/11/12	0.00		MD		13,246,428	5.77000%			77,784
				23		LUBS03CA		OFFICE		01/11/08	0.00		FL		13,234,774	5.95000%			79,164
				24		LUBS03CB		MULTIFAMILY		02/11/10	0.00		WA		13,130,000	5.80000%			65,577
				25		LUBS03CA		OFFICE		01/11/13	0.00		PA		12,462,978	6.07000%			75,507
				26		LUBS03CA		OFFICE		02/11/13	0.00		CA		11,876,252	6.50000%			75,216
				27		LUBS03CA		LODGING		02/11/13	0.00		NY		11,444,223	6.97400%			80,910
				28		LUBS03CA		RETAIL		02/11/08	0.00		CA		11,222,478	5.25000%			62,123
				29		LUBS03CA		LODGING		02/11/13	0.00		CA		11,100,000	6.27000%			59,931
				30		LUBS03CA		RETAIL		01/11/13	0.00		CA		10,268,848	5.96000%			61,489
				31		LUBS03CA		RETAIL		01/11/13	0.00		TX		10,206,410	5.53000%			58,334
				32		LUBS03CA		RETAIL		12/11/12	0.00		FL		8,966,470	6.15000%			54,831
				33		LUBS03CA		RETAIL		02/11/13	0.00		NJ		8,476,462	6.74000%			58,674
				34		LUBS03CA		RETAIL		12/11/12	0.00		AL		8,368,379	6.10000%			50,904
				35		LUBS03CA		RETAIL		01/11/13	0.00		IN		8,274,992	5.98000%			49,656
				36		LUBS03CA		RETAIL		01/11/13	0.00		AL		8,172,950	5.50000%			46,559
				37		LUBS03CB		MULTIFAMILY		01/11/08	0.00		AL		7,840,000	5.07000%			34,228
				38		LUBS03CA		LODGING		02/11/13	0.00		CA		7,400,000	6.27000%			39,954
				39		LUBS03CB		MULTIFAMILY		12/11/12	0.00		NV		7,290,214	5.72000%			42,578
				40		LUBS03CA		OFFICE		12/11/07	0.00		CA		7,172,331	6.00000%			43,168
				41		LUBS03CA		OFFICE		02/11/13	0.00		FL		6,984,971	6.05000%			42,194
				42		LUBS03CA		OFFICE		01/11/08	0.00		OK		6,977,038	5.53000%			39,877
				43		LUBS03CA		RETAIL		02/11/13	0.00		WV		6,834,929	5.90000%			40,630
				44		LUBS03CB		MULTIFAMILY		01/11/13	0.00		CA		6,828,684	5.81000%			40,236
				45		LUBS03CB		MOBILE HOME PARK		02/11/13	0.00		ME		6,481,404	6.50000%			43,888
				46		LUBS03CA		RETAIL		11/11/12	0.00		GA		6,469,984	6.25000%			40,022
				47		LUBS03CA		OFFICE		02/11/13	0.00		NY		6,386,304	6.07000%			38,660
				48		LUBS03CA		INDUSTRIAL		02/11/13	0.00		MA		6,383,763	6.07000%			39,927
				49		LUBS03CB		MULTIFAMILY		01/11/08	0.00		TX		6,328,776	5.43000%			35,776
				50		LUBS03CA		RETAIL		08/11/09	0.00		CA		6,261,777	6.55560%			40,093
				51		LUBS03CA		RETAIL		01/11/13	0.00		FL		5,981,956	5.99000%			35,934
				52		LUBS03CA		RETAIL		01/11/13	0.00		CA		5,433,735	6.03000%			32,781
				53		LUBS03CA		OFFICE		12/11/12	0.00		OH		5,380,296	6.25000%			33,249
				54		LUBS03CA		RETAIL		12/11/12	0.00		OK		5,181,026	6.25000%			32,017
				55		LUBS03CA		OFFICE		12/11/12	0.00		NJ		5,180,707	6.17000%			31,747
				56		LUBS03CA		RETAIL		01/11/13	0.00		CA		4,985,078	6.03000%			30,074
				57		LUBS03CA		RETAIL		12/11/12	0.00		TN		4,980,467	5.92000%			29,721
				58		LUBS03CB		MULTIFAMILY		01/11/13	0.00		TX		4,971,144	5.66000%			33,157
				59		LUBS03CA		OFFICE		11/11/12	0.00		NM		4,876,193	6.00000%			29,378
				60		LUBS03CA		OFFICE		02/11/13	0.00		NY		4,590,156	6.07000%			27,787
				61		LUBS03CA		INDUSTRIAL		02/11/13	0.00		CA		4,575,894	6.53000%			29,071
				62		LUBS03CA		RETAIL		06/11/12	0.00		TX		4,569,294	7.56000%			32,353
				63		LUBS03CA		RETAIL		01/11/13	0.00		FL		4,286,945	5.94000%			25,615
				64		LUBS03CA		RETAIL		11/11/12	0.00		TX		4,238,710	5.86000%			25,159
				65		LUBS03CA		RETAIL		12/11/12	0.00		IL		4,223,706	6.00000%			25,421
				66		LUBS03CA		LODGING		02/11/13	0.00		VA		4,187,886	6.44000%			28,201
				67		LUBS03CC		RETAIL		08/10/21	0.00		CA		4,114,174	8.59500%			37,208									B
				68		LUBS03CB		MOBILE HOME PARK		02/11/13	0.00		MN		3,988,557	6.50000%			27,008
				69		LUBS03CA		RETAIL		01/11/13	0.00		CO		3,987,925	5.97000%			23,905
				70		LUBS03CA		OFFICE		01/11/13	0.00		CA		3,983,838	6.48000%			26,958
				71		LUBS03CB		MULTIFAMILY		01/11/13	0.00		TX		3,981,672	5.66000%			24,947
				72		LUBS03CB		MULTIFAMILY		01/11/13	0.00		TX		3,778,070	5.66000%			25,199
				73		LUBS03CA		OFFICE		12/11/12	0.00		FL		3,636,682	6.25000%			22,474
				74		LUBS03CB		MULTIFAMILY		01/11/08	0.00		TX		3,548,101	5.43000%			20,057
				75		LUBS03CA		OFFICE		01/11/13	0.00		FL		3,489,888	6.20000%			21,436
				76		LUBS03CA		SELF STORAGE		01/11/13	0.00		NC		3,485,570	6.35000%			23,305
				77		LUBS03CA		RETAIL		12/11/12	0.00		CA		3,437,411	6.25000%			21,242
				78		LUBS03CA		INDUSTRIAL		12/11/12	0.00		TX		3,347,273	6.07000%			20,296
				79		LUBS03CA		RETAIL		02/11/13	0.00		TX		3,273,320	6.37500%			20,463
				80		LUBS03CA		OFFICE		12/11/12	0.00		OR		3,088,258	6.07000%			18,726
				81		LUBS03CA		OFFICE		01/11/08	0.00		NJ		2,990,558	5.75000%			17,507
				82		LUBS03CA		RETAIL		12/11/12	0.00		OK		2,988,707	6.10000%			18,180
				83		LUBS03CA		RETAIL		02/11/13	0.00		NH		2,966,195	6.25000%			19,625
				84		LUBS03CD		RETAIL		08/10/21	0.00		NJ		2,899,126	8.59500%			26,219									B
				85		LUBS03CA		RETAIL		01/11/13	0.00		IN		2,816,870	6.22000%			17,339
				86		LUBS03CA		RETAIL		01/11/13	0.00		AZ		2,791,675	6.05000%			16,878
				87		LUBS03CA		RETAIL		12/11/12	0.00		TX		2,790,710	6.70000%			18,068
				88		LUBS03CB		MULTIFAMILY		01/11/08	0.00		FL		2,766,591	5.95000%			16,548
				89		LUBS03CB		MULTIFAMILY		12/11/12	0.00		TX		2,739,669	6.11000%			16,683
				90		LUBS03CB		MULTIFAMILY		01/11/13	0.00		TX		2,707,537	5.66000%			16,964
				91		LUBS03CA		OFFICE		02/11/10	0.00		NJ		2,693,853	5.69000%			15,654
				92		LUBS03CA		RETAIL		01/11/08	0.00		AZ		2,690,668	5.25000%			14,910
				93		LUBS03CA		INDUSTRIAL		02/11/13	0.00		TX		2,644,771	6.57000%			16,872
				94		LUBS03CA		RETAIL		02/11/13	0.00		FL		2,624,644	6.37500%			16,408
				95		LUBS03CE		RETAIL		08/10/21	0.00		NH		2,474,414	8.59500%			22,378									B
				96		LUBS03CB		MULTIFAMILY		01/11/13	0.00		TX		2,389,003	5.66000%			14,968
				97		LUBS03CA		RETAIL		12/11/09	0.00		CA		2,291,387	6.12500%			13,975
				98		LUBS03CA		RETAIL		02/11/13	0.00		NY		2,195,376	6.18000%			13,446
				99		LUBS03CA		RETAIL		01/11/13	0.00		FL		2,153,254	6.62500%			13,824
				100		LUBS03CA		RETAIL		02/11/13	0.00		SC		2,130,071	7.00000%			14,198
				101		LUBS03CA		RETAIL		12/11/12	0.00		CA		2,027,292	6.07000%			12,293
				102		LUBS03CA		RETAIL		02/11/13	0.00		FL		2,021,011	6.58000%			12,906
				103		LUBS03CA		RETAIL		01/11/08	0.00		TX		1,991,875	5.50000%			11,863
				104		LUBS03CA		RETAIL		11/11/12	0.00		TX		1,990,419	6.07000%			12,081
				105		LUBS03CB		MULTIFAMILY		10/11/12	0.00		MA		1,989,173	6.25000%			12,314
				106		LUBS03CA		RETAIL		09/11/12	0.00		VA		1,791,239	7.50000%			12,586
				107		LUBS03CB		MULTIFAMILY		12/11/09	0.00		GA		1,709,888	5.75000%			10,821
				108		LUBS03CA		RETAIL		12/11/09	0.00		CA		1,690,401	6.00000%			10,953
				109		LUBS03CA		RETAIL		01/11/13	0.00		NY		1,394,317	6.45000%			9,409
				110		LUBS03CA		RETAIL		12/11/12	0.00		TX		1,294,325	5.37000%			7,276
				111		LUBS03CB		MOBILE HOME PARK		12/11/12	0.00		MD		1,293,316	6.57000%			8,835
				112		LUBS03CB		MULTIFAMILY		02/11/13	0.00		FL		1,009,931	6.35000%			6,297
				113		LUBS03CB		MULTIFAMILY		02/11/13	0.00		NY		838,324	6.50000%			5,309
				114		LUBS03CB		MULTIFAMILY		02/11/13	0.00		FL		718,528	6.35000%			4,480
														1,370,430,784				7,703,225			0
* 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. P&I ADV - IN GRACE PERIOD				1. P&I ADV - DELINQUENT 1 MONTH			3. P&I ADV - DELINQUENT 3+ MONTHS					7. FORECLOSURE
					B. P&I ADV -<ONE MONTH DELINQ				2. P&I ADV - DELINQUENT 2 MONTHS			4. MAT. BALLOON/ASSUMED P&I					9. REO
			04/15/2003 - 10:16 (K568-K627) 2003 LASALLE BANK N.A.																				PAGE 11 OF 26

Item 5. Other Events and Regulation FD Disclosure.

		ABN AMRO
		LASALLE BANK		N.A.
	LB-UBS COMMERCIAL MORTGAGE TRUST
									STATEMENT DATE:						04/17/2003
					COMMERCIAL MORTGAGE PASS-THROUGH CERTIFICATES								PAYMENT DATE:					04/17/2003
					SERIES 2003-C1
													PRIOR PAYMENT:					N/A
													NEXT PAYMENT:					05/16/2003
													RECORD DATE:					03/31/2003
					ABN AMRO ACCT: 67-9178-50-9
					MORTGAGE LOAN CHARACTERISTICS
	DISTRIBUTION OF PRINCIPAL BALANCES									DISTRIBUTION OF MORTGAGE INTEREST RATES
CURRENT SCHEDULED
BALANCE
# OF
LOANS
SCHEDULED
BALANCE
% OF
BALANCE
WEIGHTED AVERAGE
TERM COUPON PFY DSCR
								0				TO		2,000,000				12			17,711,735						1.29	%		102			6.20	%	0.00
								2,000,000				TO		4,000,000				35			103,819,946						7.58	%		114			6.24	%	0.00
								4,000,000				TO		6,000,000				17			81,757,369						5.97	%		121			6.28	%	0.00
								6,000,000				TO		10,000,000				19			137,899,430						10.06	%		103			5.98	%	0.00
								10,000,000				TO		20,000,000				17			235,198,592						17.16	%		115			6.05	%	0.00
								20,000,000				TO		50,000,000				9			264,289,225						19.29	%		87			5.60	%	0.00
								50,000,000				TO		100,000,000				3			234,585,652						17.12	%		118			5.42	%	0.00
								100,000,000				&		ABOVE				1			111,000,000						8.10	%		58			5.59	%	0.00
												113					1,186,261,951				86.56		%
			AVERAGE SCHEDULE BALANCE														10,497,893
			MAXIMUM SCHEDULE BALANCE												184,168,833
			MINIMUM SCHEDULE BALANCE												718,528
CURRENT MORTGAGE
INTEREST RATE
# OF
LOANS
SCHEDULED
BALANCE
% OF
BALANCE
WEIGHTED AVERAGE
TERM COUPON PFY DSCR
											0.000%			TO		4.500%			0						0						0.00	%				0	0.00	%	0.00
											4.501%			TO		5.750%			27						669,839,046						48.88	%				93	5.30	%	0.00
											5.751%			TO		7.000%			82						684,743,490						49.97	%				114	6.09	%	0.00
											7.001%			TO		8.250%			2						6,360,534						0.46	%				111	7.54	%	0.00
											8.251%			&		ABOVE			3						9,487,714						0.69	%				220	8.60	%	0.00
													114					1,370,430,784						100.00		%
		MINIMUM MORTGAGE INTEREST RATE																		4.690%
		MAXIMUM MORTGAGE INTEREST RATE																		8.595%
		DISTRIBUTION OF REMAINING TERM (BALLOON)
BALLOON
MORTGAGE LOANS
# OF
LOANS
SCHEDULED
BALANCE
% OF
BALANCE
WEIGHTED AVERAGE
TERM COUPON PFY DSCR
			0			TO		12					0			0				0.00				%		0				0.00	%	0.00
			13			TO		24					0			0				0.00				%		0				0.00	%	0.00
			25			TO		36					0			0				0.00				%		0				0.00	%	0.00
			37			TO		60					14			224,702,382				16.40				%		58				5.61	%	0.00
			61			TO		120					85			704,909,784				51.44				%		116				5.89	%	0.00
			121			TO		180					0			0				0.00				%		0				0.00	%	0.00
			181			TO		240					0			0				0.00				%		0				0.00	%	0.00
			241			&		ABOVE					0			0				0.00				%		0				0.00	%	0.00
											99							929,612,166			67.83			%
		MINIMUM REMAINING TERM													56
		MAXIMUM REMAINING TERM													119
	DISTRIBUTION OF REMAINING TERM (FULLY AMORTIZING)
FULLY AMORTIZING
MORTGAGE LOANS
# OF
LOANS
SCHEDULED
BALANCE
% OF
BALANCE
WEIGHTED AVERAGE
TERM COUPON PFY DSCR
			0		TO		60			3				87,300,000						6.37		%				57		5.01			%	0.00
			61		TO		120			7				312,889,011						22.83		%				115		5.50			%	0.00
			121		TO		180			2				31,141,893						2.27		%				176		6.50			%	0.00
			181		TO		240			3				9,487,714						0.69		%				220		8.60			%	0.00
			241		&		ABOVE			0				0						0.00		%				0		0.00			%	0.00
										15				440,818,618						32.17		%
																	MINIMUM REMAINING TERM													57
																	MAXIMUM REMAINING TERM												220
	04/15/2003 - 10:16 (K568-K627) 2003 LASALLE BANK N.A.														PAGE 16 OF 26

This current report on Form 8-K relates to the monthly distribution reported to the holders of LB-UBS Commercial Mortgage Trust, Commercial Mortgage Pass-Through Certificates, Series 2003-C1, which was made on June 17, 2003.

			ABN AMRO
			LASALLE BANK		N.A.
		LB-UBS COMMERCIAL MORTGAGE TRUST
									STATEMENT DATE:						04/17/2003
				COMMERCIAL MORTGAGE PASS-THROUGH CERTIFICATES							PAYMENT DATE:					04/17/2003
				SERIES 2003-C1
											PRIOR PAYMENT:					N/A
											NEXT PAYMENT:					05/16/2003
											RECORD DATE:					03/31/2003
				ABN AMRO ACCT: 67-9178-50-9
				MORTGAGE LOAN CHARACTERISTICS
		DISTRIBUTION OF DSCR (PFY)							GEOGRAPHIC DISTRIBUTION
DEBT SERVICE
COVERAGE RATIO
# OF
LOANS
SCHEDULED
BALANCE
	% OF
BALANCE
WAMM WAC PFY DSCR
						LESS THAN ZERO								0		0					0.00		%				0	0.00	%		0.00
						0.000 0.250								114		1,370,430,784					100.00		%				104	5.73	%		0.00
						0.251 0.500								0		0					0.00		%				0	0.00	%		0.00
						0.501 0.750								0		0					0.00		%				0	0.00	%		0.00
						0.751 1.000								0		0					0.00		%				0	0.00	%		0.00
				1.001 1.250							0		0					0.00		%				0		0.00	%	0.00
				1.251 1.500							0		0					0.00		%				0		0.00	%	0.00
				1.501 1.750							0		0					0.00		%				0		0.00	%	0.00
				1.751 2.000							0		0					0.00		%				0		0.00	%	0.00
				2.001 & ABOVE							0		0					0.00		%				0		0.00	%	0.00
				UNKNOWN							114		1,370,430,784					100.00		%				104		5.73	%	0.00
									228				2,740,861,568					200.00		%
			MAXIMUM DSCR			0.000
			MINIMUM DSCR				0.000
GEOGRAPHIC
LOCATION
# OF
LOANS
SCHEDULED
BALANCE
% OF
BALANCE
WAMM WAC PFY DSCR
											TEXAS				21					282,101,807					20.58		%			120			5.53	%	0.00
											NEW YORK				9					270,972,233					19.77		%			93			5.74	%	0.00
											CALIFORNIA				18					124,625,217					9.09		%			109			6.14	%	0.00
											MARYLAND				6					106,764,879					7.79		%			117			5.93	%	0.00
											PENNSYLVANIA				2					97,321,305					7.10		%			119			5.18	%	0.00
											NEW JERSEY				6					87,240,707					6.37		%			117			5.98	%	0.00
											FLORIDA				13					57,875,644					4.22		%			100			6.11	%	0.00
											VIRGINIA				4					46,006,486					3.36		%			117			6.03	%	0.00
											NEVEDA				2					42,490,214					3.10		%			67			5.36	%	0.00
											GEORGIA				3					33,179,873					2.42		%			69			5.34	%	0.00
											DELAWARE				1					30,000,000					2.19		%			58			4.69	%	0.00
											WASHINGTON				2					28,440,000					2.08		%			82			5.80	%	0.00
											TENNESSEE				2					27,080,467					1.98		%			68			5.17	%	0.00
											ALABAMA				3					24,381,329					1.78		%			97			5.57	%	0.00
											LOUISIANA				1					21,939,192					1.60		%			57			6.43	%	0.00
											OKLAHOMA				3					15,146,771					1.11		%			89			5.89	%	0.00
											INDIANA				2					11,091,862					0.81		%			117			6.04	%	0.00
											MASSACHUSETTS				2					8,372,936					0.61		%			117			6.11	%	0.00
											WEST VIRGINIA				1					6,834,929					0.50		%			118			5.90	%	0.00
											MAINE				1					6,481,404					0.47		%			118			6.50	%	0.00
											ARIZONA				2					5,482,343					0.40		%			88			5.66	%	0.00
											NEW HAMPSHIRE				2					5,440,609					0.40		%			164			7.32	%	0.00
											OHIO				1					5,380,296					0.39		%			116			6.25	%	0.00
											NEW MEXICO				1					4,876,193					0.36		%			115			6.00	%	0.00
											ILLINOIS				1					4,223,706					0.31		%			116			6.00	%	0.00
											MINNESOTA				1					3,988,557					0.29		%			118			6.50	%	0.00
											COLORADO				1					3,987,925					0.29		%			117			5.97	%	0.00
											NORTH CAROLINA				1					3,485,570					0.25		%			117			6.35	%	0.00
											OREGON				1					3,088,258					0.23		%			116			6.07	%	0.00
											SOUTH CAROLINA				1					2,130,071					0.16		%			118			7.00	%	0.00
						114				1,370,430,784					100.00		%
		DISTRIBUTION OF DSCR (CUTOFF)
DEBT SERVICE
COVERAGE RATIO
# OF
LOANS
SCHEDULED
BALANCE
% OF
BALANCE
WAMM WAC PFY DSCR
							LESS THAN ZERO					0							0					0.00	%			0			0.00	%		0.00
							0.001 0.250					0							0					0.00	%			0			0.00	%		0.00
							0.251 0.500					0							0					0.00	%			0			0.00	%		0.00
							0.501 0.750					0							0					0.00	%			0			0.00	%		0.00
							0.751 1.000					3							9,487,714					0.69	%			220			8.60	%		0.00
							1.001 1.250					2							19,536,893					1.43	%			162			6.31	%		0.00
					1.251 1.500				67							584,250,296					42.63	%				110		6.00	%		0.00
					1.501 1.750				32							294,942,128					21.52	%				86		5.86	%		0.00
					1.751 2.000				7							163,317,595					11.92	%				92		5.17	%		0.00
					2.001 & ABOVE				3							298,896,158					21.81	%				110		5.25	%		0.00
										114						1,370,430,784				100.00		%
				MAXIMUM DSCR		3.010
				MINIMUM DSCR			1.000
		04/15/2003 - 10:16 (K568-K627) 2003 LASALLE BANK N.A.						PAGE 17 OF 26

Item 7. Financial Statements and Exhibits.

		ABN AMRO
		LASALLE BANK		N.A.
	LB-UBS COMMERCIAL MORTGAGE TRUST
										STATEMENT DATE:						04/17/2003
						COMMERCIAL MORTGAGE PASS-THROUGH CERTIFICATES									PAYMENT DATE:					04/17/2003
						SERIES 2003-C1
															PRIOR PAYMENT:					N/A
															NEXT PAYMENT:					05/16/2003
															RECORD DATE:					03/31/2003
						ABN AMRO ACCT: 67-9178-50-9
						MORTGAGE LOAN CHARACTERISTICS
	DISTRIBUTION OF PROPERTY TYPES												DISTRIBUTION OF LOAN SEASONING
										PROPERTY TYPES
# OF
LOANS
SCHEDULED
BALANCE
% OF
BALANCE
WAMM WAC PFY DSCR
										RETAIL				53				630,674,245					46.02		%				116		5.64	%	0.00
										OFFICE				25				370,292,938					27.02		%				109		5.93	%	0.00
										MULTIFAMILY				23				283,175,306					20.66		%				68		5.50	%	0.00
										LODGING				4				34,132,109					2.49		%				118		6.53	%	0.00
										MOBILE HOME PARK				4				31,718,914					2.31		%				118		6.09	%	0.00
										INDUSTRIAL				4				16,951,701					1.24		%				118		6.27	%	0.00
										SELF STORAGE				1				3,485,570					0.25		%				117		6.35	%	0.00
							114			1,370,430,784						100.00			%
NUMBER OF MONTHS
# OF
LOANS
SCHEDULED
BALANCE
% OF
BALANCE
WAMM WAC PFY DSCR
													0		TO		12				111		1,360,943,070				99.31	%				104		5.71	%	0.00
													13		TO		24				0		0				0.00	%				0		0.00	%	0.00
													25		TO		36				0		0				0.00	%				0		0.00	%	0.00
			37		TO		48				3				9,487,714				0.69		%		220			8.60	%	0.00
			49		TO		60				0				0				0.00		%		0			0.00	%	0.00
			61		TO		72				0				0				0.00		%		0			0.00	%	0.00
			73		TO		84				0				0				0.00		%		0			0.00	%	0.00
			85		TO		96				0				0				0.00		%		0			0.00	%	0.00
			97		TO		108				0				0				0.00		%		0			0.00	%	0.00
			109		TO		120				0				0				0.00		%		0			0.00	%	0.00
			121		OR		MORE				0				0				0.00		%		0			0.00	%	0.00
										114					1,370,430,784				100.00		%
	DISTRIBUTION OF AMORTIZATION TYPE											DISTRIBUTION OF YEAR LOANS MATURING
									AMORTIZATION TYPE
# OF
LOANS
SCHEDULED
BALANCE
% OF
BALANCE
WAMM WAC PFY DSCR
									AMORTIZINGBALLOON						90				683,212,166			49.85		%			109			5.87	%	0.00
									ARD						8				330,900,904			24.15		%			122			5.58	%	0.00
									FULL AMORTIZING						3				9,487,714			0.69		%			220			8.60	%	0.00
									IO MATURITY BALLOON						8				231,090,000			16.86		%			81			5.67	%	0.00
									IO/ AMORTIZATING						5				115,740,000			8.45		%			63			5.20	%	0.00
									114				1,370,430,784			100.00			%
YEAR
# OF
LOANS
SCHEDULED
BALANCE
% OF
BALANCE
WAMM WAC PFY DSCR
			2003					0			0				0.00		%			0		0.00	%	0.00
			2004					0			0				0.00		%			0		0.00	%	0.00
			2005					0			0				0.00		%			0		0.00	%	0.00
			2006					0			0				0.00		%			0		0.00	%	0.00
			2007					1			7,172,331				0.52		%			56		6.00	%	0.00
			2008					16			304,830,051				22.24		%			57		5.43	%	0.00
			2009					4			11,953,453				0.87		%			78		6.28	%	0.00
			2010					3			31,133,853				2.27		%			82		5.79	%	0.00
			2011					0			0				0.00		%			0		0.00	%	0.00
			2012					28			321,582,544				23.47		%			116		5.60	%	0.00
			2013					57			653,128,945				47.66		%			118		5.84	%	0.00
			2014 & GREATER					5			40,629,607				2.96		%			186		6.99	%	0.00
								114			1,370,430,784			100.00			%
	04/15/2003 - 10:16 (K568-K627) 2003 LASALLE BANK N.A.																PAGE 18 OF 26

ABN AMRO

LASALLE BANK

N.A.

LB-UBS COMMERCIAL MORTGAGE TRUST

STATEMENT DATE:

04/17/2003

COMMERCIAL MORTGAGE PASS-THROUGH CERTIFICATES

PAYMENT DATE:

04/17/2003

SERIES 2003-C1

PRIOR PAYMENT:

N/A

NEXT PAYMENT:

05/16/2003

RECORD DATE:

03/31/2003

ABN AMRO ACCT: 67-9178-50-9

SPECIALLY SERVICED (PART I) ~ LOAN DETAIL (END OF PERIOD)

LOAN

STATUS

CODE(1)

DISCLOSURE

CONTROL #

SERVICING

XFER DATE

BALANCE

NOTE

RATE

MATURITY

DATE

REMAINING

PROPERTY

TYPE

GEO.

LOCATION

NOI

DSCR

NOI

DATE

SCHEDULE

ACTUAL

LIFE

(1) LEGEND:

A. P&I ADV - IN GRACE PERIOD

1. P&I ADV - DELINQUENT 1 MONTH

3. P&I ADV - DELINQUENT 3+ MONTHS

7. FORECLOSURE

B. P&I ADV -<ONE MONTH DELINQ

2. P&I ADV - DELINQUENT 2 MONTHS

4. MAT. BALLOON/ASSUMED P&I

9. REO

04/15/2003 - 10:16 (K568-K627) 2003 LASALLE BANK N.A.

PAGE 19 OF 26

99.1 Monthly distribution report pursuant to Section 4.02 of the Pooling and Servicing Agreement for the distribution on June 17, 2003.
(Exhibit No. Description)

ABN AMRO

LASALLE BANK

N.A.

LB-UBS COMMERCIAL MORTGAGE TRUST

STATEMENT DATE:

04/17/2003

COMMERCIAL MORTGAGE PASS-THROUGH CERTIFICATES

PAYMENT DATE:

04/17/2003

SERIES 2003-C1

PRIOR PAYMENT:

N/A

NEXT PAYMENT:

05/16/2003

RECORD DATE:

03/31/2003

ABN AMRO ACCT: 67-9178-50-9

SPECIALLY SERVICED LOAN DETAIL (PART II) ~ SERVICER COMMENTS (END OF PERIOD)

DISCLOSURE

CONTROL #

RESOLUTION

STRATEGY

COMMENTS

04/15/2003 - 10:16 (K568-K627) 2003 LASALLE BANK N.A.

PAGE 20 OF 26

SIGNATURES

ABN AMRO

LASALLE BANK

N.A.

LB-UBS COMMERCIAL MORTGAGE TRUST

COMMERCIAL MORTGAGE PASS-THROUGH CERTIFICATES

STATEMENT DATE:

04/17/2003

PAYMENT DATE:

04/17/2003

SERIES 2003-C1

PRIOR PAYMENT:

N/A

NEXT PAYMENT:

05/16/2003

RECORD DATE:

03/31/2003

ABN AMRO ACCT: 67-9178-50-9

HISTORICAL COLLATERAL LEVEL REO REPORT

RECENT

APPRAISAL

VALUE

APPRAISAL

REDUCTION

AMOUNT

DISCLOSURE

CONTROL #

REO

DATE

CITY

STATE

PROPERTY

TYPE

ACTUAL

BALANCE

SCHEDULED

BALANCE

DATE

LIQUIDATED

LIQUIDATION

PROCEEDS

LIQUIDATION

EXPENSES

REALIZED

LOSS

PAGE 21 OF 26

04/15/2003 - 10:16 (K568-K627) 2003 LASALLE BANK N.A.

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.

ABN AMRO

LASALLE BANK

N.A.

LB-UBS COMMERCIAL MORTGAGE TRUST

COMMERCIAL MORTGAGE PASS-THROUGH CERTIFICATES

STATEMENT DATE:

04/17/2003

SERIES 2003-C1

PAYMENT DATE:

04/17/2003

PRIOR PAYMENT:

N/A

NEXT PAYMENT:

05/16/2003

RECORD DATE:

03/31/2003

ABN AMRO ACCT: 67-9178-50-9

RATING INFORMATION

ORIGINAL RATINGS

RATING CHANGE/CHANGE DATE(1)

CLASS

CUSIP

FITCH

MOODY'S

S&P

FITCH

MOODY'S

S&P

R-LR-C

R-LR-H

R-LR

9ABSK619

R-I

9ABSK616

R-II

9ABAK617

A-1

52108HPK4

AAA

A-2

52108HPL2

AAA

A-3

52108HPM0

AAA

A-4

52108HPN8

AAA

A-1B

52108HQG2

AAA

52108HPP3

AA+

52108HPQ1

52108HPR9

AA-

52108HPS7

A+

52108HPT5

52108HPU2

A-

52108HPV0

BBB+

52108HPW8

BBB

52108HPX6

BBB-

52108HPY4

BB+

52108HPZ1

52108HQA5

BB-

52108HQB3

B+

52108HQC1

52108HQD9

B-

52108HQE7

X-CL

52108HQH0

AAA

X-CP

52108HQJ6

AAA

R-III

9ABSK618

9ABSK620

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.

04/15/2003 - 10:16 (K568-K627) 2003 LASALLE BANK N.A.

PAGE 22 OF 26

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

ABN AMRO

LASALLE BANK

N.A.

LB-UBS COMMERCIAL MORTGAGE TRUST

STATEMENT DATE:

04/17/2003

COMMERCIAL MORTGAGE PASS-THROUGH CERTIFICATES

PAYMENT DATE:

04/17/2003

SERIES 2003-C1

PRIOR PAYMENT:

N/A

NEXT PAYMENT:

05/16/2003

RECORD DATE:

03/31/2003

ABN AMRO ACCT: 67-9178-50-9

MODIFIED LOAN DETAIL

CUTOFF

MATURITY

DATE

MODIFIED

MATURITY

DATE

DISCLOSURE

CONTROL #

MODIFICATION

DATE

MODIFICATION

DESCRIPTION

04/15/2003 - 10:16 (K568-K627) 2003 LASALLE BANK N.A.

PAGE 24 OF 26

Date: June 18, 2003

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

ABN AMRO

LASALLE BANK

N.A.

LB-UBS COMMERCIAL MORTGAGE TRUST

STATEMENT DATE:

04/17/2003

COMMERCIAL MORTGAGE PASS-THROUGH CERTIFICATES

PAYMENT DATE:

04/17/2003

SERIES 2003-C1

PRIOR PAYMENT:

N/A

NEXT PAYMENT:

05/16/2003

RECORD DATE:

03/31/2003

ABN AMRO ACCT: 67-9178-50-9

REALIZED LOSS DETAIL

BEGINNING

SCHEDULED

BALANCE

GROSS PROCEEDS

AS A % OF

SCHED. BALANCE

AGGREGATE

LIQUIDATION

EXPENSES *

NET

LIQUIDATION

PROCEEDS

NET PROCEEDS

AS A % OF

SCHED. BALANCE

PERIOD

DISCLOSURE

CONTROL #

APPRAISAL

DATE

APPRAISAL

VALUE

GROSS

PROCEEDS

REALIZED

LOSS

CURRENT TOTAL

CUMULATIVE

* AGGREGATE LIQUIDATION EXPENSES ALSO INCLUDE OUTSTANDING P&I ADVANCES AND UNPAID SERVICING FEES, UNPAID TRUSTEE FEES, ETC..

04/15/2003 - 10:16 (K568-K627) 2003 LASALLE BANK N.A.

PAGE 25 OF 26

ABN AMRO

LASALLE BANK

N.A.

LB-UBS COMMERCIAL MORTGAGE TRUST

STATEMENT DATE:

04/17/2003

COMMERCIAL MORTGAGE PASS-THROUGH CERTIFICATES

PAYMENT DATE:

04/17/2003

SERIES 2003-C1

PRIOR PAYMENT:

N/A

NEXT PAYMENT:

05/16/2003

RECORD DATE:

03/31/2003

ABN AMRO ACCT: 67-9178-50-9

APPRAISAL REDUCTION DETAIL

DISCLOSURE

CONTROL#

APPRAISAL

RED. DATE

SCHEDULED

BALANCE

ARA

AMOUNT

CURRENT P&I

ADVANCE

ASER

NOTE

RATE

MATURITY

DATE

REMAINING TERM

PROPERTY

TYPE

GEOGRAPHIC

LOCATION

DSCR

APPRAISAL

VALUE DATE

LIFE

04/15/2003 - 10:16 (K568-K627) 2003 LASALLE BANK N.A.

PAGE 26 OF 26

Filing Compare · STRUCTURED ASSET SEC CORP II COM MORT PAS THR CER SE 03 C1