FORM 6-K

                      SECURITIES AND EXCHANGE COMMISSION

                            Washington, D.C. 20549

                     Report of Foreign Private Registrants

                       Pursuant to Rule 13a-16 or 15d-16

                    of the Securities Exchange Act of 1934

                        For the month of March, 2005


                          GRANITE MORTGAGES 04-1 PLC
                (Translation of registrant's name into English)
                         Fifth Floor, 100 Wood Street,
                           London EC2V 7EX, England
                   (Address of principal executive offices)

                       GRANITE FINANCE TRUSTEES LIMITED
                (Translation of registrant's name into English)
                        22 Grenville Street, St Helier,
                        Jersey JE4 8PX, Channel Islands
                   (Address of principal executive offices)

                        GRANITE FINANCE FUNDING LIMITED
                (Translation of registrant's name into English)
                                 69 Park Lane,
                           Croydon CR9 1TQ, England
                   (Address of principal executive offices)


      Indicate by check mark whether the registrants file or will file annual
reports under cover Form 20-F or Form 40-F

                  Form 20-F.....X....  Form 40-F.............

      Indicate by check mark whether the registrants by furnishing the
information contained in this Form are also thereby furnishing the information
to the Commission pursuant to Rule 12g3-2(b) under the Securities Exchange Act
of 1934.

                  Yes............      No.......X...........



                                 SIGNATURES

      Pursuant to the requirements of the Securities Exchange Act of 1934, the
registrants have duly caused this report to be signed on their behalf by the
undersigned, thereunto duly authorized.

                                     GRANITE MORTGAGES 04-1 PLC

                                     By:  L.D.C. Securitisation Director No. 1


                                     By: /s/ Sharon Tyson
                                         --------------------------------------
                                     Name:  Sharon Tyson
                                     Title: Director


Date:  May 23, 2005

                                     GRANITE FINANCE FUNDING LIMITED


                                     By: /s/ Jonathan David Rigby
                                         --------------------------------------
                                     Name:  Jonathan David Rigby
                                     Title: Director


Date:  May 23, 2005

                                     GRANITE FINANCE TRUSTEES LIMITED


                                     By: /s/ Daniel Le Blancq
                                         --------------------------------------
                                     Name:  Daniel Le Blancq
                                     Title: Director


Date:  May 23, 2005





INVESTORS' MONTHLY REPORT
- -------------------------

GRANITE MORTGAGES 04-1 PLC
- --------------------------

Monthly Report re: Granite Mortgages 01-1 Plc, Granite Mortgages 01-2 Plc,
Granite Mortgages 02-1 Plc Granite Mortgages 02-2 Plc, Granite Mortgages 03-1
Plc, Granite Mortgages 03-2 Plc, Granite Mortgages 03-3 Plc Granite Finance
Trustees Limited, Granite Mortgages 04-2 Plc, Granite Mortgages 04-3 Plc,
Granite Master Issuer Plc, Granite Finance Funding Limited and Granite Finance
Funding 2 Limited
Period 1 March 2005 - 31 March 2005


N.B. this data fact sheet and its notes can only be a summary of certain
features of the bonds and their structure. No representation can be made that
the information herein is accurate or complete and no liability is accepted
therefor. Reference should be made to the issue documentation for a full
description of the bonds and their structure. This data fact sheet and its
notes are for information purposes only and are not intended as an offer or
invitation with respect to the purchase or sale of any security. Reliance
should not be placed on the information herein when making any decision
whether to buy, hold or sell bonds (or other securities) or for any other
purpose.

Mortgage Loans

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Number of Mortgage Loans in Pool                              278,191

Current Balance - Trust Mortgage Assets                   (GBP)25,187,763,514

Current Balance - Trust Cash and other Assets             (GBP)1,178,420,307

Last Months Closing Trust Assets                          (GBP)26,285,417,468

Funding share                                             (GBP)19,057,225,862

Funding 2 share                                           (GBP)4,210,421,237

Funding and Funding 2 share                               (GBP)23,267,647,099

Funding and Funding 2 Share Percentage                        88.25%

Seller Share*                                             (GBP)3,098,536,722

Seller Share Percentage                                       11.75%

Minimum Seller Share (Amount)*                            (GBP)1,548,707,664

Minimum Seller Share (% of Total)                              5.87%

Excess Spread last quarter annualised (% of Total)             0.54%
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* Please see the Additional Notes to the Investor Reports



Arrears Analysis of Non Repossessed Mortgage Loans



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                          Number            Principal (GBP)       Arrears (GBP)             By Principal (%)

                                                                                    
< 1 Month                273,423             24,759,561,656             0                         98.30%

> = 1 < 3 Months          3,859              354,850,635            3,009,072                     1.41%

> = 3 < 6 Months           722               59,134,140             1,342,703                     0.23%

> = 6 < 9 Months           162               12,346,981              523,746                      0.05%

> = 9 < 12 Months           24               1,830,590               111,031                      0.01%

> = 12 Months               1                  39,512                 3,400                       0.00%

Total                    278,191            25,187,763,514         4,989,952                    100.00%
- ----------------------------------------------------------------------------------------------------------------------------------





Properties in Possession

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                          Number      Principal (GBP)       Arrears (GBP)

Total (since inception)    352          23,239,406             1,170,342
- ------------------------------------------------------------------------------

- ------------------------------------------------------------------------------
Properties in Possession                                               126

Number Brought Forward                                                  92

Repossessed (Current Month)                                             34

Sold (since inception)                                                 226

Sold (current month)                                                    13

Sale Price / Last Loan Valuation                                      1.06

Average Time from Possession to Sale (days)                            135

Average Arrears at Sale                                         (GBP)2,900

Average Principal Loss (Since inception)*                          (GBP)92

Average Principal Loss (current month)**                            (GBP)0

MIG Claims Submitted                                                     6

MIG Claims Outstanding                                                   0

Average Time from Claim to Payment                                      41
- ------------------------------------------------------------------------------

*This figure is calculated taking the cumulative principal losses since
inception pre MIG claims divided by the number of properties sold since
inception.

**This figure is calculated taking the cumulative principal losses for the
current month pre MIG claims divided by the number of properties sold in the
current month.

Note: The arrears analysis and repossession information is at close of
business for the report month


Substitution

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                                               Number        Principal (GBP)

Substituted this period                          0                (GBP)0

Substituted to date (since 26 March 2001)     562,237       (GBP)48,998,814,077
- ------------------------------------------------------------------------------


CPR Analysis

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                                                                    % of CPR

Current Month % of CPR - Removals*                                   58.30%

Previous Month % of CPR - Removals*                                  71.50%

Current Month % of CPR - Non-Removals**                              41.70%

Previous Month % of CPR - Non-Removals**                             28.50%
- ------------------------------------------------------------------------------

*Removals are loans that Northern Rock has repurchased from the Trust (e.g.
Further Advances and Product Switches)

**Non-Removals are scheduled repayments, overpayments and redemptions


- ------------------------------------------------------------------------------
                                              Monthly              Annualised

Current Month CPR Rate - Total                 4.40%                 41.72%

Previous Month CPR Rate - Total                5.36%                 48.38%
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- ------------------------------------------------------------------------------
Weighted Average Seasoning (by value) Months                          24.81

Weighted Average Remaining Term (by value) Years                      20.57

Average Loan Size                                               (GBP)90,541

Weighted Average LTV (by value)                                      74.78%

Weighted Average Indexed LTV (by value)                              65.41%

Non Verified (by value)                                              39.30%
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Product Breakdown

- ------------------------------------------------------------------------------
Fixed Rate (by balance)                                              50.59%

Together (by balance)                                                23.13%

Capped (by balance)                                                   0.71%

Variable (by balance)                                                22.24%

Tracker (by balance)                                                  3.33%

Total                                                                100.0%
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Geographic Analysis

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                  Number      % of Total     Value (GBP)        % of Total

East Anglia        5,526        1.99%          504,501,860          2.00%

East Midlands     19,700        7.08%        1,605,107,319          6.37%

Greater London    33,793       12.15%        4,998,907,595         19.85%

North             30,539       10.98%        1,818,011,254          7.22%

North West        37,078       13.33%        2,698,834,161         10.71%

Scotland          34,424       12.37%        2,271,755,414          9.02%

South East        41,195       14.81%        5,102,791,560         20.26%

South West        17,844        6.41%        1,808,034,981          7.18%

Wales             11,374        4.09%          825,801,306          3.28%

West Midlands     18,167        6.53%        1,559,037,978          6.19%

Yorkshire         28,551       10.26%        1,994,980,086          7.92%

Total            278,191        100%        25,187,763,514          100%
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LTV Levels Breakdown

- ------------------------------------------------------------------------------
                       Number               Value (GBP)           % of Total

0% < 25%               10,720                412,870,095              1.64%

> = 25% < 50%          34,607              2,580,627,717             10.25%

> = 50% < 55%          10,620                964,028,147              3.83%

> = 55% < 60%          11,477              1,100,553,656              4.37%

> = 60% < 65%          12,978              1,280,996,280              5.09%

> = 65% < 70%          15,694              1,566,681,881              6.22%

> = 70% < 75%          20,146              2,027,040,499              8.05%

> = 75% < 80%          21,322              2,393,229,910              9.50%

> = 80% < 85%          35,596              3,819,269,619             15.16%

> = 85% < 90%          35,225              3,341,423,143             13.27%

> = 90% < 95%          52,189              4,244,715,092             16.85%

> = 95% < 100%         17,217              1,431,137,514              5.68%

> = 100%                  400                 25,189,962              0.10%

Total                 278,191             25,187,763,514             100.0%
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Repayment Method

- ------------------------------------------------------------------------------
                             Number           Value (GBP)         % of Total

Endowment                    23,065         1,736,429,215             6.89%

Interest Only                45,567         6,541,390,677            25.97%

Pension Policy                  529            54,194,624             0.22%

Personal Equity Plan          1,030            76,744,358             0.30%

Repayment                   208,000        16,779,004,639            66.62%

Total                       278,191        25,187,763,514           100.00%
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Employment Status

- ------------------------------------------------------------------------------
                             Number            Value (GBP)        % of Total

Full Time                   242,699        20,718,914,439            82.26%

Part Time                     3,573           226,023,488             0.90%

Retired                         436            13,453,084             0.05%

Self Employed                28,643         4,091,208,140            16.24%

Other                         2,840           138,164,363             0.55%

Total                       278,191        25,187,763,514           100.00%
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- ------------------------------------------------------------------------------
NR Current Existing Borrowers' SVR                                    6.84%

Effective Date of Change                                      1 September 2004
- ------------------------------------------------------------------------------





Notes      Granite Mortgages 04-1 plc


- ------------------------------------------------------------------------------
                Outstanding            Rating          Reference Rate   Margin
                                  Moodys/S&P/Fitch

Series 1

A1                 $0               P-1/A-1+/F1+            N/A         -0.04%

A2            $925,000,000          Aaa/AAA/AAA            3.12%         0.07%

B              $52,000,000            Aa3/AA/AA            3.26%         0.21%

M              $72,000,000            A2/A/A               3.46%         0.41%

C             $108,000,000          Baa2/BBB/BBB           3.95%         0.90%

Series 2

A1             $1,185,000,000       Aaa/AAA/AAA             3.21%        0.16%

A2          (Euro)900,000,000       Aaa/AAA/AAA             2.30%        0.16%

B            (Euro)91,000,000        Aa3/AA/AA              2.48%        0.34%

M            (Euro)45,000,000         A2/A/A                2.71%        0.57%

C            (Euro)60,000,000       Baa2/BBB/BBB            3.21%        1.07%

Series 3

A             (GBP)600,000,000      Aaa/AAA/AAA             5.15%        0.16%

B             (GBP)23,000,000        Aa3/AA/AA              5.33%        0.34%

M             (GBP)10,000,000         A2/A/A                5.56%        0.57%

C             (GBP)20,000,000       Baa2/BBB/BBB            6.06%        1.07%
- ------------------------------------------------------------------------------


Credit Enhancement

- ------------------------------------------------------------------------------
                                                        % of Notes Outstanding

Class B and M Notes ((GBP) Equivalent) (GBP)194,305,490           6.87%

Class C Notes ((GBP) Equivalent)       (GBP)120,180,421           4.25%
- ------------------------------------------------------------------------------


- ------------------------------------------------------------------------------
                                                            % of Funding Share

Class B and M Notes ((GBP) Equivalent) (GBP)194,305,490           1.02%

Class C Notes ((GBP) Equivalent)       (GBP)120,180,421           0.63%
- ------------------------------------------------------------------------------


- ------------------------------------------------------------------------------
Granite Mortgages 04-1 Reserve
Fund Requirement                      (GBP)60,000,000                  0.31%

Balance Brought Forward               (GBP)60,000,000                  0.31%

Drawings this Period                      (GBP)0                       0.00%

Excess Spread this Period             (GBP)5,310,700                   0.03%

Funding Reserve Fund Top-up
this Period*                         -(GBP)5,310,700                  -0.03%

Current Balance                       (GBP)60,000,000                  0.31%
- ------------------------------------------------------------------------------


- ------------------------------------------------------------------------------
Funding Reserve Balance               (GBP)58,568,726                  0.31%

Funding Reserve %                            1.0%                        NA
- ------------------------------------------------------------------------------
*Top-ups only occur at the end of each quarter.






Additional Notes to the Investor Reports

The Overcollateralisation test will be breached on any distribution date where
the aggregate current balance of mortgage loans on such distribution date is
less than an amount equal to the product of 1.05 and the principal amount
outstanding of all notes of all issuers on such distribution date. The
principal amount outstanding of such notes will be calculated on a straight
line basis by applying the appropriate constant payment rate applicable to
each series of notes on a monthly, rather than quarterly, basis.

A non asset trigger event will occur if the current seller share is equal to
or less the minimum seller share for two consecutive months. The one month
cure period will now allow the seller to substitute new loans into the trust
to meet the minimum seller requirement.

The notes may be redeemed at the option of the issuer if on the payment date
falling on or after July 2008, the New Basel Capital Accord has been
implemented in the United Kingdom

A arrears trigger event will occur if the outstanding principal balance of 90+
day arrears in the trust exceed 2%. In the event of an arrears trigger the
Granite Mortgages 04-2 issuer reserve fund will step up to 1.415%, the Granite
04-3 issuer reserve fund will step up to 1.38% and the Funding 2 reserve fund
required amount increases by (GBP)5 million. This trigger event is curable.

A issuer non call trigger event will occur if any of the issuers are not
called on their step up and call dates. In the event of an issuer non call
trigger the Granite Mortgages 04-2 issuer reserve fund target will step up by
0.275%, the Granite Mortgages 04-3 issuer reserve fund target by 0.27%, the
funding reserve target will step up by 0.10% and the funding 2 reserve fund
required amount increases by (GBP)5 million. If the breach is rectified only
the funding 2 reserve fund required amount will reduce to its original target.

A accelerated controlled amortisation trigger will occur if any of the issuers
are not called on their step up and call dates. In the event of an accelerated
controlled amortisation trigger all Granite Mortgages 04-2 & 04-3 tranches
become pass through securities.