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

                       FORM 10-K


(Mark One)

ANNUAL REPORT PURSUANT TO SECTION 13 OR
15d OF THE SECURITIES EXCHANGE ACT OF 1934

For the fiscal year ended  June 30, 2005

                          or

TRANSITION REPORT PURSUANT TO SECTION 13
OR 15d OF THE SECURITIES EXCHANGE ACT OF 1934

For the transition period from
to


Commission file number  333 -32944

 Westpac Securitisation Management Pty Limited
   In its capacity as trust manager of the
            Series 2005-1G WST Trust
    Australian Business Number 45 097 216 751
  Exact name of registrant as specified in its
                     charter


           New South Wales, Australia
  (State or other jurisdiction of  incorporation
    or organization)


98 0181944

I.R.S. Employer Identification No.


Level 25, 60 Martin Place, Sydney, NSW 2000,
Australia


                    612 8254 3029
Registrants telephone number, including area code


Securities registered pursuant to Section 12b
of the Act:
None

Securities registered pursuant to section
12(g) ofthe Act:
None

Indicate by check mark whether the registrant
(1) has filed all reports required to be filed
by Section 13 or 15(d) of the Securities
Exchange Act of 1934 during the preceding
12 months (or for such shorter period that the
registrant was required to file such reports),
and (1) has been subject to such
filing requirements for the past 90 days.

Yes

The information required for some items in Form
10-K is not applicable to the Trust or the
Trust Manager.  As used in this Annual Report
files on Form 10-K, not applicable or
Not Applicable means that the response to the
referenced item is omitted in reliance on the
procedures outlined in the numerous no-action
letters issued by the Commissions Staff  with
respect to substantially similar certificates
and trusts that file annual reports on Form 10-K.

Table of Contents

Part I

 - Item 1. Business
 - Item 2. Properties
 - Item 3. Legal Proceedings
 - Item 4. Submission of Matters to a Vote of
Security Holders

Part II

 - Item 5. Market for Registrants Common Equity
and Related Stockholder Matters
 - Item 6. Selected Financial Data
 - Item 7. Managements Discussion and Analysis
of Financial Condition and Results of Operation
 - Item 7A. Quantitative and Qualitative
   Disclosures About Market Risk
 - Item 8. Financial Statements and
   Supplementary Data
 - Item 9. Changes in and Disagreements With
Accountants on Accounting and Financial
Disclosure

Part III

 - Item 10. Directors and Executive Officers of
the Registrant
 - Item 11. Executive Compensation
 - Item 12. Security Ownership of Certain
Beneficial Owners and Management
 - Item 13. Certain Relationships and Related
Transactions

Part IV

 - Item 14. Exhibits, Financial Statement
Schedules,and Reports on Form 8-K


PART I

Item 1. Business.
This Annual Report on Form 10-K relates to the
Series 2005-1G WST Trust (the Trust) and the
Class A and Class B Mortgage Backed Floating
Rate Notes, Series 2005-1G (the Notes) issued
pursuant to the Note Trust Deed dated as of
February 28, 2005, between Westpac Securities
Administration Limited, as Trustee
(the Issuer Trustee); Westpac
Securitisation Management Pty Limited
(the Trust Manager) as trust manager; and
Deutsche Bank Trust Company Americas, as
Principal Paying Agent.  Capitalised terms used
in this Form 10-K and not defined have the same
meanings ascribed to such terms in the Prospectus
for the above-referenced Notes. The only business
of the Trust is the collection and distribution
of payments on the residential mortgage loans
in the manner described in the Registration
Statement on Form S-3 (File No.333-32944)
(the Registration Statement). Accordingly,
there is no relevant information to report
in response to Item 101 of Regulation S-K.

Item 2. Properties
The Registrant and the Trust do not have any
physical properties. Accordingly, this item is
not applicable.

Item 3. Legal Proceedings.
The Trust Manager knows of no material legal
proceedings involving any Trust, the Trust
Manager,the Servicer or the Issuer Trustee which
were pending as of June 30, 2005, or as of the
date of this report.

Item 4. Submission of Matters to a Vote of
Security Holders
No votes or consents of Noteholders were
solicited during the fiscal year for any
purpose.

PART II

Item 5. Market for Registrants Common Equity
and Related Stockholder Matters
The Notes are not traded on any nationally
recognised exchange in the United States.  The
Class A Notes are listed and exchanged on the
London Stock Exchange. Since the Trust pays
no dividends with respect to the Notes,
the information required by Item 201 of
Regulation S-K regarding dividends is inapplicable
to the Trust. See Exhibit 99.1 for information
with respect to distributions to Noteholders.

Item 6. Selected Financial Data.
The regular quarterly Noteholders Reports,
which is required to be included with each
quarterly distribution of the Trusts assets to
Noteholders, sets forth for the prior quarter,
as well as cumulatively, all of the relevant
financial information required by the Note
Trust Deed to be reported to Noteholders.The
Noteholders Reports  for the Payment Date in
June, 2005 is incorporated herein as Exhibit
No. 99.1.The foregoing presents all relevant
financial information relating to the Trust.
Because of the limited business activity of the
Trust, the Selected Financial Data
specified in Item 301 of Regulation S-K would
not provide any meaningful additional
information.

Item 7. Managements Discussion and Analysis of
Financial Condition and Results of Operation
Because of the limited business activity of the
Trust, the presentation of Managements Discussion
and Analysis of Financial Condition and Results
of Operations, as otherwise required by Item 303
of Regulation S-K, would not be meaningful.
All relevant information is contained
in the Noteholders Report (filed under Current
Reports on Form 8-K) as described above.

Item 7A. Quantitative and Qualitative Disclosures
About Market Risk
Currency Exchange Control Risk
Interest and principal payments to holders of
Class A Notes are paid in United States dollars
(U.S. dollars).However payments on the
Housing Loans are received by the Issuer Trustee,
in Australian dollars, in Australia
(the Collections).  Pursuant to certain
swap agreements (the Swap Agreements) the
Issuer Trustee is required to pay a portion of
the Collections to certain swap counterparties
(the Currency Swap Providers) who in turn pays
(Swap Currency Exchange), at the direction of
the Issuer Trustee, U.S. dollars to the
Noteholders, (the Currency Swap).  It is
possible that in the future Australia may
impose exchange controls that affect the
availability of Australian dollar payments for
making payments under the Currency Swap. The
holders of the Class A Notes will bear the risk
of the imposition of foreign exchange controls
by the Australian government that impact upon
the Issuer Trustees ability to exchange the
Collections for U.S. dollars.  The Issuer
Trustee has no control over such risk, which
will generally be affected by economic and
political events in Australia.  If the
Issuer Trustee does not pay some or all
of the amount in Australian dollars which it
is required to pay the Currency Swap Provider
under the Currency Swap, the Currency Swap
Provider is only required to pay the U.S. dollar
equivalent of the amounts it actually receives.
In such event, it is unlikely that the Trust
would have sufficient U.S. dollars to
make the payments due on the Class A Notes.

The Australian laws that control and regulate or
permit the control and regulation of a broad range
of payments and transactions involving non-residents
of Australia can be summarised as follows:

-Payments and transactions with certain countries may
 be subject to withholding taxes in relation to
remittances or dividends (to the extent they are
unfranked) and interest payments.

-Accounts of persons and entities identified by the
Minister for Foreign Affairs as being associated with
terrorism remain frozen, and transactions with these
persons and entities prohibited, under Regulation 6A
of the Charter of the United Nations (Terrorism and
Dealings with Assets) Regulations 2002, made under
the Charter of the United Nations Act 1945.  Details
of these Regulations, and the lists of persons and
entities proscribed in terms of the Regulations,
are published in the Commonwealth
Government Gazette and are available on the website
of the Department of Foreign Affairs and Trade at
www.dfat.gov.au/icat/.

-The United Nations Security Council Resolution 1483
(2003) was implemented by way of Notice from the
Governor of the Reserve Bank of Australia pursuant to
the Banking (Foreign Exchange) Regulations 1959 (Cth),
and imposes a number of new measures intended to
facilitate Iraqs reconstruction and rehabilitation,
including obligations on UN Member States to freeze
any financial assets of the previous Iraqi regime
and to make such assets available for a Development
Fund for Iraq. Australias obligations under
Resolution 1483 (2003) were implemented under the Iraq
(Reconstruction and Repeal of Sanctions) Regulations,
which commenced on 29 May 2003.

-Transactions involving individuals associated with the
regime of former President of Yugoslavia Slobodan Milosevic
and certain ministers and senior officials of the Government
of Zimbabwe are prohibited without the specific approval
of the Reserve Bank of Australia under the Banking
(Foreign Exchange) Regulations 1959 (Cth). The Reserve
Bank of Australia publishes changes to prohibited parties
and variations in the restrictions on those parties from time
to time in the Commonwealth Government Gazette.

-Transactions over A$100,000 involving the Embassy
of the Federal Republic of Yugoslavia, the Consulate-General
of the Federal Republic of Yugoslavia or the National Bank
of Yugoslavia require prior approval from the Reserve Bank
of Australia.

Currency Exchange Risk.
Interest and principal on the Notes is payable
in U.S. dollars and the Trusts primary source
for funding its payments on the Class A Notes
is its Collections on the Housing Loans, which
will be sourced in Australian dollars.  If the
Currency Swap Provider were to fail to perform
under the Currency Swap or were to be discharged
from such performance because of a default
thereunder by the Trust, the Trust might have
to exchange its Australian dollars for
U.S. dollars at an exchange rate that is less
favourable to the Trust than when the currency
swap was entered into and might therefore not
have sufficient U.S. dollars to make timely
payments on the Class A Notes, even though the
delinquency and loss experience on the Housing
Loans may be acceptable.

Item 8. Financial Statements and Supplementary
Data
As discussed above, furnishing the
financial information required by Item 8 of
Form 10-K would not add any relevant information
to that provided by the foregoing statements.
Because the Notes are essentially
pass-through securities, the Trust will have
income only in the limited sense of collecting
payments on the residential mortgage loans.
The only material items of expense for the
Trust will be the amounts paid as servicing
compensation and potentially certain payments
relating to any credit enhancement facilities.
The Noteholders Report (filed under Current
Reports on Form 8-K) provide complete information
on the amounts of the income and expenses
of the Trust.

Item 9. Changes in and Disagreements With
Accountants on Accounting and Financial
Disclosure
none.

PART III

Item 10. Directors and Executive Officers of the
Registrant
Since the Trust will not have any
directors or executive officers, this item
is not applicable.

Item 11. Executive Compensation
Since the Trust will not have any directors or
executive officers, this item is not applicable.

Item 12. Security Ownership of Certain Beneficial
Owners and Management.
The following table sets forth (i) the name and
address of each entity owning more than 5% of
the outstanding principal amount of the Class A
Notes or Class B Notes; (ii) the principal
amount of  the Class of Notes owned by each,
if known, and (iii) the percent that the
principal amount of the Class of Notes owned
represents of the outstanding principal amount
of the Class of Notes. The information set
forth in the table is based upon information
obtained by the Trust Manager from the Trustee
and from The Depository Trust Company as of
June 30, 2005. The Trust Manager is not
aware of any Schedules 13D or 13G
filed with the Securities and Exchange Commission
in respect of the Notes.

Amount Owned
All dollar amounts are
in thousands

Name and Address
 Principal
 Percent

Class A1 Noteholders

Bank of New York
One Wall Street
New York, NY 10286

$336,753
 35.52%

JPMorgan Chase Bank
14201 Dallas Pkwy
Dallas, Tx 75254

 $168,536
 17.78%

State Street Bank and Trust Company
1776 Heritage Drive
Quincy, Ma 02171

 $167,428
 17.66%

Harris Trust and Savings Bank
11 W.Monroe Street
Chicago, IL 60603

$81,882
8.64%


ML SFKPG
4 CORPORATE PLACE
PISCATAWAY
NJ 08854

$64,644
6.82%

Class A2 Noteholders

ANZ NOMINEES LIMITED
GPO BOX 1406M
MELBOURNE VIC 3001
AUSTRALIA

$233,150 AUD
54.10%

WESTPAC CUSTODIAN NOMINEES LIMITED
50 PITT STREET
SYDNEY NSW 2000
AUSTRALIA

$68,954 AUD
16.00%


JP MORGAN CHASE
Level 26, Grosvenor Place
225 George Street
SYDNEY NSW 2000
AUSTRALIA

$43,096 AUD
10.00%


NATIONAL NOMINEES LIMITED
GPO BOX 1406M
MELBOURNE VIC 3001
AUSTRALIA

$37,838,AUD
8.78%

Class B Noteholders

State Street Capital Pty Limited
Level 38
88 Phillip Street
Sydney NSW Australia 2000

$27,500 AUD
100.00%

Item 13. Certain Relationships and Related
Transactions The Registrant received Trust
Manager Fee payments from the Trust in
accordance with the terms of the Master
Trust Deed and the Series Notice.

PART IV

Item 14. Exhibits, Financial Statement Schedules,
and Reports on Form 8-K
	(a) (1) and (2):
Incorporated herein as  Exhibit 31 is the Civil
Certification from Principal Financial Officer.
Aggregate totals of the Noteholders Reports to
the Trust for the fiscal year ended June 30, 2005,
copies of the Independent Auditors Annual
Sericer Compliance Certificate, and Westpac Banking
Corporations Officers Certificate of Compliance
are attached hereto and are incorporated herein
by reference as Exhibit No. 99.1, Exhibit No.99.2,
Exhibit No. 99.3 and Exhibit No. 99.4, respectively.
..
a) (3)  EXHIBITS
Designation  Description     Method of Filing
Exhibit  31  Section 302 Certification     31
Exhibit 99.1 Aggregate Totals for
             Fiscal Year                 99.1
Exhibit 99.2 Independent Auditors Annual
             servicer compliance
             Certificate                 99.2
Exhibit 99.3 Officers Certificate of
             Compliance                  99.3

(b) On June 23 2005  reports on
form 8-K were filed by the company during the
preceding fiscal year in order to provide the
statements for quarterly distributions to the
noteholders. No other reports on form 8-K have
been filed during the last fiscal year covered
by this report.

Documents incorporated by reference
Form 8-K for the June 23, 2005 Payment Date

Exhibit 31


SECTION 302 CERTIFICATION

SERIES 2005-1G WST TRUST

I, Peter Walden, certify that:

1. I have reviewed this annual report on
Form 10-K, and all reports on Form 8-K
containing distribution or servicing reports
filed in respect of periods included
in the year covered by this annual report,
of Series 2005-1G WST Trust;

2. Based on my knowledge, the information in
these reports, taken as a whole, does not
contain any untrue statement of material fact
or omit to state a material fact necessary to
make the statements made, in light of the
circumstances under which such statement were
made, not misleading as of the last day of the
period covered by this annual report;

3. Based on my knowledge, the distribution or
servicing information required to be provided
to the Trustee by the servicer under the pooling
and servicing, or similar, agreement, for
inclusion in these reports is included in
these reports,

4.Based on my knowledge and upon the annual
compliance statement included in the report
and required to be delivered to the trustee in
accordance with the terms of the pooling and
servicing, or similar, agreement, and except
as disclosed in the reports, the servicer has
fulfilled its obligations under the
servicing agreement; and

5.The reports disclose all significant
deficiencies relating to the servicers
compliance with the minimum servicing standards
based upon the report provided by an independent
public accountant, after conducting a review
in compliance with the Uniform Single
Attestation Program for Mortgage Bankers or
similar procedure, as set forth in the pooling
and servicing, or similar, agreement, that
is included in these reports.

In giving the certifications above, I have
reasonably relied on information provided to me
by the following unaffiliated parties:
EDS (Business Process Administration) Pty
Limited and PriceWaterhouseCoopers.



Signature:

____________________________
 Peter Walden
22  September 2005

Title: Principal Financial Officer
Westpac Securitisation Management Pty Limited


Exhibit 99.1

    AGGREGATE TOTALS FOR THE FISCAL YEAR
NOTEHOLDERS REPORT - SERIES 2005-1G WST TRUST

Date of Report - Determination Date 17-June-05

Housing Loan Collection Period
                  8-Feb-05 to 11-Jun-05
                 (inclusive)   (inclusive)
Days in Collection Period      124
Coupon Period     08-Feb-05 to 23-Jun-05
                 (inclusive)   (exclusive)
Days in Coupon Period          135

3 month BBSW (average)        5.6167%
3 Month USD-LIBOR (average)   2.88000%

Foreign Exchange Rate         0.7740

				      AUD

Available Income               49,108,339.31
Total Available Funds        54,387,742.63
Accrued Interest Adjustment   10,159,236.67
Redraws Made                   125,069,812.14
Redraw Shortfall                         0
Redraw Facility Draw                     0
RFS Issued This Period                   0
Trust Expenses                   1,990,778.25
Total Payment                    54,387,742.63
Payment Shortfall                 5,279,403.32
Principal Draw This Period  5,279,403.32
Total Principal Draws Outstand  5,279,403.32
Gross Principal Collections  395,620,784.00
Principal Collections            270,550,971.86
Excess Available Income         0
Excess Collections Dist.          0
Liquidity Shortfall                   0
Liquidity Net Draw / (Repayment)
this period                              0
Remaining Liquidity Shortfall            0
Liquidation Loss                        0
Principal Charge Offs                    0
Prepayment Benefit Shortfall             0
Average Daily Balance        1,796,965,098.72
Subordinated Percentage            1.3863%
Initial Subordinated Percentage    3.3000%
Average Quarterly Percentage          0.0000%

                    Principal/100,000  Coupon/100,000/10,000
ClassA1             13,807.6795          1,106.2500   usd
ClassA2	  13,807.6795	        2,129.1904   aud
Class B               	0       	        2,180.9712   aud

Stated Amount - AUD Equiv.Percentage Forex % Chargeoffs
Class A1     1,224,955,459.41  72.76601%  1.00000
Class A2        430,961,602.54  25.60041%
Class B         27,500,000.00       1.63358%
RFS                     0  0.00000
TOTAL      1,683,417,061.95 100.00000% 100.00000%


Stated Amount - USD            Bond Factor
Class A1     948,115,525.58      0.8619232    0.00
Class A2      333,564,280.36     0.8619232    0.00
Class B          21,285,000.00     1.0000000    0.00
RFS                      0.00            0.00
TOTAL     1,302,964,805.95  0.00

                                       $A
Scheduled principal                 14,572.88
Unscheduled principal              255,978,091
                                 ---------------
Principal Collections              270,550,972
                                 ---------------

Fixed  Rate Housing Loan              8,311,525
Variable Rate Housing Loans       1,669,826,134
                                  --------------
                                  1,678,137,659
                                  ---------------


Exhibit 99.2

INDEPENDENT AUDITORS ANNUAL SERVICER
COMPLIANCE CERTIFICATE TO THE DIRECTORS
OF WESTPAC SECURITISATION MANAGEMENT PTY
LIMITED

Scope
We have reviewed Westpac Banking Corporations (WBC)
and The Mortgage Company Pty Limiteds (TMC and
WBC and TMC each a Servicer) activitities for the
purpose of determining their compliance with the
servicing standards
contained in the agreements
between:

- Westpac Banking Corporation as servicer, Westpac
Securities
Administration Limited as Trustee and Westpac
Securitisation
Management Pty Limited as Trust Manager dated
12 March 2002,
as amended (the 2002 Servicing Agreement);
- Westpac Banking Corporation, Westpac Securities
Administration Limited as Trustee and The Mortgage
Company Pty Limited as
servicer dated 18 February 1997, as amended
(the 1997 Servicing
Agreement); (each a Servicing Agreement),
respectively attached
as Appendix 1A and Appendix 1B, in relation
to the Series 1999-1G
WST Trust, Series 2002-1G WST Trust and the
Series 2005-1G WST Trust for the year
ended 30 June 2005, in accordance
with the statement by Division of Corporation
Finance of the Securities and Exchange
Commission dated 21 February 2003,
and our engagement letter dated 31 August 2004.
We have reviewed the servicing standards
contained in the Servicing Agreements
to enable us to report on whetherthose
servicing standards are similar to
those contained in the Uniform Single Attestation
Program for Mortgage Bankers (USAP),
attached as Appendix 2, which
establishes a minimum servicing standard for the
asset
backed securities market in the United States of
America.
No equivalent of the USAP exists in Australia.
Management of each Servicer are responsible for
maintaining an effective internal control structure
including internal control policies and procedures
relating to the servicing of mortgage loans. We
have conducted an independent review of the
servicing standards included in Appendix 1A and 1B,
in order to express a statement on each Servicers
compliance with them.
Our review of the servicing standards has been
conducted
in accordance with Australian Auditing Standards
applicable
to performance audits and accordingly included
such tests
and procedures as we considered necessary in the
circumstances. In conducting our review
we have also had regard to the guidance contained
in the USAP. These procedures have
been undertaken to enable us to report on whether
anything has come to our attention to
indicate that there has been any significant
deficiencies in either Servicers compliance
with the servicing standards contained in the
Servicing Agreements for the year ended 30 June 2005.
Our review did not include an assessment of
the adequacy of the servicing standards themselves.
This statement has been prepared for the use of
Westpac Securitisation Management Pty
Limited as at 30 June 2005 in accordance with
the requirements of the statement by the
Division of Corporation Finance of the Securities
and Exchange Commission dated 21
February 2003 and the engagement letter dated
31 August 2004. We disclaim any
assumption of responsibility for any reliance on
this review statement, to any person other
than Westpac Securitisation Management Pty
Limited, Westpac Banking Corporation and
The Mortgage Company Pty Limited.
Statement
Based on our review:
- Nothing has come to our attention to indicate
that there has been any significant deficiencies
in WBCs compliance with the servicing
standards contained in the 2002 Servicing
Agreement attached in Appendix 1A,
in respect of the Series 2002-1G WST Trust
and the Series 2005-1G WST Trust for the year
ended 30 June 2005.
- Nothing has come to our attention to indicate
that there has been any significant deficiencies
in TMCs compliance with the servicing standards
contained in the1997 Servicing Agreement attached
in Appendix 1B, in respect of the Series 1999-
IG WST Trust for the year ended 30 June 2005.
- The servicing standards contained in Appendix 1A
and 1B are similar to the minimum servicing standards
contained in the Uniform Single Attestation Program
for Mortgage Brokers.

PricewaterhouseCoopers
Stuart Scoular
Partner
Sydney
     September 2005


Appendix 1A

Servicing Undertakings

The Servicer undertakes that at all times during
the Term it will:

(a) (notice of default)
    give notice in writing to the trustee and the
    Designated Rating Agency of it becoming aware
    of the occurrence of any Servicer Transfer
    Event;

(b) (compliance with law)
     (i) maintain in effect all  qualifications,
         consents, licenses, permits,  approvals,
         exemptions,filings and registrations as
         may be required under any applicable law
         in order properly to service the Receivables
         and  Receivable Securities and to perform or
         comply with its obligations under this
         Agreement; and
    (ii) comply with all Laws in connection with
         servicing the Receivables and Receivable
         Securities where failure to do so would
         have an Ad-verse Effect;

(c) (Collections)
     (i) in relation to Receivables of which
         Westpac is the legal owner, on request
         from Westpac, assist Westpac to collect
         all moneys due under those Receivables
         and the Receivable Securities; and
    (ii) in relation to Receivables of which the
         Trustee is the legal owner, collect all
         moneys due under those Receivables
         and Receivables Securities,in accordance
         with the standards specified in Clause 2.2,
         and pay them into the relevant Collections
         Account not later than the time that
         Westpac would be required to do so under
         Clause 6.

(d) (Material Default)
     if a Material Default occurs  in respect to
     a Receivable, take such action in accordance
     with the Servicers normal enforcement
     procedures to enforce the relevant Receivable
     and the Receivable Security to the extent that
     the Servicer determines that enforcement
     procedures should be taken;

(e) (Insurance Policies)
    (i) act in accordance with the terms of any
        Mortgage Insurance Policies;
   (ii) not do or omit to do anything which could
        be reasonably expected to prejudicially
        affect or limit its rights or the rights of
        the Trustee under or in respect of a
        Mortgage Insurance Policy to the extent
        those rights relate to a Receivable and
        the Receivable Security;
  (iii) promptly make a claim under any Mortgage
        Insurance Policy when it is entitled to
        do so; and promptly notify the Trust
        Manager then each such a claim is made.

(f) (no Security Interests)
    not consent to the creation or existence of
    any Security Interest  in favour of a third
    party in relation to any  Mortgaged Property
    in connection with a Receivable and the Receivable
    Security:

   (i) without limiting paragraph (f)(ii), unless
       priority arrangements are entered into with
       that third party under which the third party
       acknowledges that the Receivable and
       Receivable Security ranks ahead in priority
       to the third party Security Interest on
       enforcement for an amount not less
       than the Unpaid Balance of the Receivable
       plus such other amount as the Servicer
       determines in accordance with the Procedures
       Manual or its ordinary course of business; or
  (ii) which would rank before or pari passu with the
       relevant Receivable and Receivable Security;

(g) (release of debt or vary terms)
    not, except as required by Law, release an
    obligor from any amount owing in respect of a
    Receivable or otherwise vary or discharge any
    Receivable or Receivable Security or enter into any
    agreement or arrangement which has the effect of
    altering the amount pay-able in respect of a
    receivable or Receivable Security where it would
    have an Adverse Effect;

(h) (binding provisionsand orders of a competent
     authority)
     release any Receivable or Receivable Security,
     reduce the amount outstanding under or vary
     the terms of any Receivable or grant other
     relief to an obligor, if required to do so
     by any Law or if ordered to do so by a court,
     tribunal, authority, ombudsman or other entity
     whose decisions are binding on the Servicer.
     If the order is due to the Servicer breaching
     any applicable Law then the Servicer must
     indemnify the Trustee for any loss the Trustee
     may suffer by reason of the order. The amount
     of the loss is to be determined by agreement
     with the Trustee or failing this, by the
     Servicers external auditors;

(i)  (other miscellaneous things)
     attend to the stamping and registration of
     all Relevant Documents for each Relevant Trust
     (includ-ing documents which became Relevant
     Documents) following any amendment,consolidation
     or other action, and in the case of any
     registration  of any Mortgage that registration
     must result in the Mortgage having the ranking
     referred to in the relevant eligibility criteria
     in the Series Notice.In relation to any Mortgage
     that is not registered at the relevant Closing Date,
     the Servicer shall ensure that it is lodged for
     registration not later than 120 days after that
     Closing Date;

(j)  (setting the Interest Rate)
      (i) the Servicer shall set the interest rate on
          the Receivables in accordance with the
          requirements of the Series Notice; and
     (ii) subject to the relevant Series Notice, if the
          Trustee has perfected its title to the
          Receivables or Receivable Securities and
          the Trustee is entitled to vary the interest
          rate in accordance with the terms of the
          Receivables, the Servicer shall, in accordance
          with the terms of the Receivables, set and
          maintain the interest rate on the relevant
          Receivables at or above the relevant
          Threshold Rate as advised by the Trust
          Manager in accordance with the Master
          Trust Deed and the Series Terms and
          promptly notify the relevant obligors;

(k) (notification)
          notify:
      (i) the Trustee and the Trust Manager of
          any event which it reasonably believes
          is likely to have an Adverse Effect
          promptly after becoming aware of
          such event; and
     (ii) the Trust Manager of anything else
          which the Trust Manager reasonably
          requires regarding any proposed
          modification to any Receivable or
          Receivable Security.

(l)  (provide information and access on request)
      provide information reasonably requested
      by the Trustee or the Trust Manager, with
      respect to all matters relating to each
      Relevant Trust and the assets of the relevant
      Trust, and the Trustee or the Trust Manager
      believes reasonably necessary for it to
      perform its obligations under the relevant
      Transaction Documents, and upon
      reasonable notice and at reasonable times
      permit the Trustee to enter the Premises and
      inspect the  Data Base in relation to each
      Relevant Trust and the Relevant Documents;

(m) (comply with other obligations)
      comply with all its obligations under any
      Transaction Document to which it is a party,
      where a failure to do so would result in an
      Adverse Effect;

(n) (pay taxes)
      subject to receiving payment from,  or being
      reimbursed by, the relevant obligor or being
      indemnified by the Trustee, pay all Taxes that
      relate to the Services (other than any Tax on
      the income of a Trust) or ensure those Taxes
      are paid or where such Taxes are incurred due
      to the default or breach of duty by the
      Servicer;

(o) (not claim)
     not claim any Security Interest over any Asset;

(p) (availability of Data Base)
     make the Data Base that relates to the Services
     available for inspection by the Trustee at any
     reasonable time;

(q) (comply with Series Notice)
    comply with any undertaking specified as an
    additional Servicer undertaking in a relevant
    Series Notice, including, without limitation,
    providing the Trust Manager with any information
    referred to in that Series Notice;

(r) (insurances)
   ensure that the Premises are appropriately insured
   for fire and public risks, and that it has
   appropriate directors and officers insurance;

(s) (additional amounts)
    notify Westpac and the Trust Manager immediately
    of each request by an obligor to borrow further
    moneys under or in relation to a Receivable or
    Receivable Security which is a top-up and which
    the Servicer has approved; and

(t) (comply with Trust Back)
    apply any moneys it receives  in relation to any
    other Secured Liability in accordance with the
    relevant Trust Back in accordance with the
    directions of the Trustee.

Appendix  2

USAP (UNITED STATES)

Mortgage Principal, Interest and Amortization
Minimum Servicing Standards

1. Reconciliations shall be prepared on a
   monthly basis for all custodial bank accounts
   and related bank clearing accounts.  These
   reconciliations shall:
   - be mathematically accurate;
   - be prepared within forty five (45) calendar
     days after the cutoff date;
   - be reviewed and approved by someone other
     than the person who prepared the reconciliation;
     and
   - document explanations for reconciling items.
     These reconciling items shall be resolved within
     ninety (90) calendar days of their original
     identification.

2. Funds of the servicing entity shall be advanced
   in cases where there is an overdraft in an
   investors or a mortgagors account.
   (Suggested procedures for this MSS are located
   in the Disbursements Section below.)

3. Each custodial account shall be maintained at a
   federally insured depository institution in trust
   for the applicable investor.To replace a
   federally insured depository institution
   with an approved deposit taking
   institution with a stipulated rating from a
   rating agency

4. Escrow funds held in trust for a mortgagor
   shall  be returned to the mortgagor within
   thirty (30) calendar days of payoff of the
   mortgage loan.(Suggested procedures to test
   this MSS are located in the Mortgage Payments
   Section below.)

Mortgage Payments

Minimum Servicing Standards

1. Mortgage payments shall be deposited into the
   custodial bank accounts and related bank clearing
   accounts within two business days of receipt.

2. Mortgage payments made in accordance with
   the mortgagors loan documents shall be posted
   to the applicable mortgagor records within two
   business days of receipt.

3. Mortgage payments shall be allocated to principal,
   interest, insurance, taxes or other escrow items
   in accordance with the mortgagors loan
   documents.

4. Mortgage payments identified as loan payoffs
   shall be allocated in accordance with the
   mortgagors loan documents.

Disbursements

Minimum Servicing Standard

1. Disbursements made via wire transfer on behalf
   of a mortgagor or investor shall be made only
   by authorized personnel.

2. Disbursements made on behalf of a mortgagor
   or investor shall be posted within two business
   days to the mortgagors or investors records
   maintained by the servicing entity.

3. Tax and insurance payments shall be made on
   or before the penalty or insurance policy
   expiration dates, as indicated on tax bills and
   insurance premium notices, respectively,
   provided that such  support has been received
   by the servicing entity at least thirty (30)
   calendar days prior to these dates.

4. Any late payment penalties paid in conjunction
   with the payment of any tax bill or insurance
   premium notice shall be paid from the servicing
   entitys funds and not charged to the mortgagor,
   unless the late payment was due to the
   mortgagors error or omission.

5. Amounts remitted to investors per the servicers
   investor reports shall agree with canceled checks
   or other form of payment, or custodial bank
   statements.

6. Unissued checks shall be safeguarded so as to
   prevent unauthorized access.

Investor Accounting and Reporting

Minimum Servicing Standard

The servicing entitys investor reports shall agree
with, or reconcile to, investors records on a
monthly basis as to the total unpaid principal
balance and number of loans serviced by the
servicing entity.

Mortgage Loan Accounting

Minimum Servicing Standard

1. The servicing entitys mortgage loan records
   shall agree with, or reconcile to, the records
   of mortgagors with respect to the unpaid
   principal balance on a monthly basis.

2. Adjustments on ARM loans shall be computed
   based on the related mortgage note and any
   ARM rider Mortgage loans can be taken out at
   a variable rate or fixed rate, nominated by the
   mortgagor. Any adjustments will be as stated
   in the mortgage  loan document.

3. Escrow accounts shall be analyzed, in accordance
   with the mortgagors loan documents, on at least
   an annual basis. (Suggested procedures for this
   MSS are located in the Disbursements Section
   above).

4. Interest on escrow accounts shall be paid, or
   credited, to mortgagors in accordance with the
   applicable state laws.  (A compilation of state
   laws relating to the payment of interest on escrow
   accounts may be obtained from National FSI by
   contacting Medgine Bocage at (212) 773-2397.
   Suggested procedures for this MSS are located
   in the Disbursements Section above.)


Delinquencies

Minimum Servicing Standards

Records documenting collection efforts shall
be maintained during the period a loan is in
default and shall be updated at least monthly.
Such records shall describe the entitys activities
in monitoring delinquent loans including,
for example, phone calls, letters and mortgage
payment rescheduling plans in cases where
the delinquency is deemed temporary (e.g.,
illness or unemployment).

Insurance Policies

Minimum Servicing Standards

A fidelity bond and errors and omissions policy
shall be in effect on the servicing entity
throughout the reporting period in the amount
of coverage represented to investors in
managements assertion.This type of
representations are not given in Australia.
Certain non-rated servicing entities may have
indemnity insurance.


Exhibit 99.3

  WESTPAC BANKING CORPORAITON
  CERTIFICATE OF COMPLIANCE

OFFICERS CERTIFICATE OF COMPLIANCE

The undersigned, a duly authorised representative of
Westpac Banking Corporation, acting as Servicer
(the Servicer) pursuant to the Servicing Agreement
between Westpac Banking Corporation, Westpac
Securities Administration Limited as Trustee and
Westpac Securitisation Management Pty Limited as
Trust Manager dated 12 March 2002 (the Agreement),
certifies that:

1. As of the date hereof, Westpac Banking Corporation
is the Servicer of Series 2005-1G WST Trust.

2. A review of the activities of the Servicer during
the calendar year ending 30 June 2005 and its
performance under the pooling and servicing agreement
or similar agreement has been made under my supervision.

3. Based on such review, to my knowledge and after
making appropriate enquiries, the Servicer has fulfilled
its obligations under the pooling and servicing agreement
or similar agreement relating to the Trust throughout
the financial year ended 30 June 2005, except as may be
set forth in paragraph 4 below.

4. The following is a description of any exceptions
to paragraph 3. above:
None.

Capitalised terms used but not defined in this Officers
Certificate of Compliance have their respective meanings
set forth in the Agreement, unless the context requires
otherwise or unless otherwise defined in the Officers
Certificate.

IN WITNESS WHEREOF, the undersigned has duly executed
this Officers Certificate of Compliance this
day of   19 September, 2005.

By  /Sd/  M G Barbour
Authorised Officer


Pursuant to the requirements of Section 13
or 15(d)of the Securities Exchange Act of 1934,
the registrant has duly caused this report
to be signed on its behalf by the undersigned,
thereunto duly authorized.

(Registrant) Westpac Securitisation Manangement
Pty Limited

By

 ______________________________________
Director
22  September 2005


Pursuant to the requirements of the Securities
Exchange Act of 1934, this report has been signed
below by the following persons on behalf of the
registrant and in the capacities and on the dates
indicated.


______________________________________
Director
22  September 2005



______________________________________
Director
22  September 2005