<SUBMISSION>
<ACCESSION-NUMBER>0001181431-04-049445
<TYPE>3
<PUBLIC-DOCUMENT-COUNT>2
<PERIOD>20041028
<FILING-DATE>20041028
<DATE-OF-FILING-DATE-CHANGE>20041028
<REPORTING-OWNER>
<OWNER-DATA>
<CONFORMED-NAME>MAGNUSON RICHARD A
<CIK>0001191698
</OWNER-DATA>
<FILING-VALUES>
<FORM-TYPE>3
<ACT>34
<FILE-NUMBER>001-32336
<FILM-NUMBER>041104082
</FILING-VALUES>
<MAIL-ADDRESS>
<STREET1>400 SOUTH EL CAMINO REAL
<CITY>SAN MATEO
<STATE>CA
<ZIP>94402-1708
</MAIL-ADDRESS>
</REPORTING-OWNER>
<ISSUER>
<COMPANY-DATA>
<CONFORMED-NAME>Digital Realty Trust, Inc.
<CIK>0001297996
<ASSIGNED-SIC>6798
<IRS-NUMBER>000000000
<STATE-OF-INCORPORATION>MD
<FISCAL-YEAR-END>1231
</COMPANY-DATA>
<BUSINESS-ADDRESS>
<STREET1>2730 SAND HILL ROAD, SUITE 280
<CITY>MENLO PARK
<STATE>CA
<ZIP>94025
<PHONE>(650) 233-3600
</BUSINESS-ADDRESS>
<MAIL-ADDRESS>
<STREET1>2730 SAND HILL ROAD, SUITE 280
<CITY>MENLO PARK
<STATE>CA
<ZIP>94025
</MAIL-ADDRESS>
</ISSUER>
<DOCUMENT>
<TYPE>3
<SEQUENCE>1
<FILENAME>rrd56040.xml
<DESCRIPTION>RICHARD MAGNUSON FORM 3
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>3</documentType>

    <periodOfReport>2004-10-28</periodOfReport>

    <noSecuritiesOwned>0</noSecuritiesOwned>

    <issuer>
        <issuerCik>0001297996</issuerCik>
        <issuerName>Digital Realty Trust, Inc.</issuerName>
        <issuerTradingSymbol>DLR</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001191698</rptOwnerCik>
            <rptOwnerName>MAGNUSON RICHARD A</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>2730 SAND HILL ROAD</rptOwnerStreet1>
            <rptOwnerStreet2>SUITE 280</rptOwnerStreet2>
            <rptOwnerCity>MENLO PARK</rptOwnerCity>
            <rptOwnerState>CA</rptOwnerState>
            <rptOwnerZipCode>94025</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>Executive Managing Director</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock, par value $0.01 per share</value>
                <footnoteId id="F1"/>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>322</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>By Global Innovation Partners, LLC</value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <derivativeTable>
        <derivativeHolding>
            <securityTitle>
                <value>Long-Term Incentive Units</value>
                <footnoteId id="F2"/>
            </securityTitle>
            <conversionOrExercisePrice>
                <footnoteId id="F4"/>
            </conversionOrExercisePrice>
            <exerciseDate>
                <footnoteId id="F2"/>
            </exerciseDate>
            <expirationDate>
                <footnoteId id="F3"/>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>808149</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeHolding>
        <derivativeHolding>
            <securityTitle>
                <value>Common Units</value>
                <footnoteId id="F1"/>
                <footnoteId id="F5"/>
            </securityTitle>
            <conversionOrExercisePrice>
                <footnoteId id="F4"/>
            </conversionOrExercisePrice>
            <exerciseDate>
                <footnoteId id="F5"/>
            </exerciseDate>
            <expirationDate>
                <footnoteId id="F3"/>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>29061849</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>By Global Innovation Partners, LLC</value>
                </natureOfOwnership>
            </ownershipNature>
        </derivativeHolding>
        <derivativeHolding>
            <securityTitle>
                <value>Put Option (obligation to buy)</value>
                <footnoteId id="F6"/>
            </securityTitle>
            <conversionOrExercisePrice>
                <footnoteId id="F4"/>
            </conversionOrExercisePrice>
            <exerciseDate>
                <footnoteId id="F6"/>
            </exerciseDate>
            <expirationDate>
                <footnoteId id="F6"/>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>2868846</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>By Global Innovation Partners, LLC</value>
                </natureOfOwnership>
            </ownershipNature>
        </derivativeHolding>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">The reporting person disclaims beneficial ownership of these securities, except to the extent of the reporting person's pecuniary interest therein, and this report shall not be deemed an admission that the reporting person is the beneficial owner of such securities for purposes of Section 16 or for any other purposes.</footnote>
        <footnote id="F2">Represents long-term incentive units in Digital Realty Trust, L.P. a Maryland Limited Partnership (the &quot;Operating Partnership&quot;), of which the Issuer is the general partner.  Long-term incentive units will initially not have full parity with common limited partnership units of the Operating Partnership; however, upon the occurrence of specified events, long-term incentive units may over time achieve full parity with common units in the Operating Partnership for all purposes, and thereafter may be converted into an equal number of common units of the Operating Partnership on a one for one basis at any time.  Common limited partnership units of the Operating Partnership are redeemable commencing fourteen months from the consummation of the Issuer's initial public offering for cash based on the fair market value of an equivalent number of shares of the Issuer's common stock, or, at the election of the Issuer, an equal number of shares of the Issuer's common stock.</footnote>
        <footnote id="F3">Not applicable</footnote>
        <footnote id="F4">1 for 1</footnote>
        <footnote id="F5">Represents common limited partnership units of the Digital Realty Trust, L.P. a Maryland Limited Partnership (the &quot;Operating Partnership&quot;).  Common limited partnership units of the Operating Partnership are redeemable commencing fourteen months from the consummation of the Issuer's initial public offering for cash based on the fair market value of an equivalent number of shares of the Issuer's common stock, or, at the election of the Issuer, an equal number of shares of the Issuer's common stock.</footnote>
        <footnote id="F6">Represents a put option held by the Issuer that is exerciseable solely by the issuer at any time and expires seven months following the consummation of the Issuer's initial public offering.</footnote>
    </footnotes>

    <remarks>Exhibit List

  Exhibit 24 - Power of Attorney</remarks>

    <ownerSignature>
        <signatureName>/s/ Rachel K. Muir, Attorney-in-fact</signatureName>
        <signatureDate>2004-10-28</signatureDate>
    </ownerSignature>
</ownershipDocument>

</XML>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-24.
<SEQUENCE>2
<FILENAME>rrd46692_52703.htm
<DESCRIPTION>POWER OF ATTORNEY
<TEXT>
<HTML>
<HEAD>
<TITLE>
rrd46692_52703.html
</TITLE>
</HEAD>
<BODY>
<PRE>
POWER OF ATTORNEY<p>The undersigned hereby constitutes and appoints each of A. William Stein and Rachel K. Muir, signing singly and not jointly,<br>the undersigned's true and lawful attorney-in-fact to:<br>(1)  execute for and on behalf of the undersigned, any and all Forms 3, 4, and 5 required to be filed under Section 16(a) <br>of the Securities Exchange Act of 1934, as amended, and the rules thereunder with respect to equity securities of Digital <br>Realty Trust, Inc. (the "Company");<br>(2)  do and perform any and all acts for and on behalf of the undersigned which may be necessary or desirable to complete <br>and execute any and all such Forms 3, 4, or 5 and timely file such form with the United States Securities and Exchange <br>Commission and any stock exchange or similar authority; and<br>(3)  take any other action of any type whatsoever in connection with the foregoing which, in the opinion of such <br>attorney-in-fact, may be of benefit to, in the best interest of, or legally required by, the undersigned, it being <br>understood that the documents executed by such attorney-in-fact on behalf of the undersigned pursuant to this Power of <br>Attorney shall be in such form and shall contain such terms and conditions as such attorney-in-fact may approve in such <br>attorney-in-fact's discretion.<br>The undersigned hereby grants to each such attorney-in-fact full power and authority to do and perform any and every act and <br>thing whatsoever requisite, necessary, or proper to be done in the exercise of any of the rights and powers herein granted, <br>as fully to all intents and purposes as the undersigned might or could do if personally present, with full power of <br>substitution or revocation, hereby ratifying and confirming all that such attorney-in-fact, or such attorney-in-fact's <br>substitute or substitutes, shall lawfully do or cause to be done by virtue of this Power of Attorney and the rights and <br>powers herein granted.  The undersigned acknowledges that the foregoing attorneys-in-fact, in serving in such capacity at <br>the request of the undersigned, are not assuming, nor is the Company assuming, any of the undersigned's responsibilities to <br>comply with Section 16 of the Securities Act of 1934, as amended.<br>This Power of Attorney shall remain in full force and effect until the undersigned is no longer required to file Forms 3, 4,<br>and 5 with respect to the undersigned's holdings of and transactions in securities issued by the Company, unless earlier <br>revoked by the undersigned in a signed writing delivered to the foregoing attorneys-in-fact.<br>IN WITNESS WHEREOF, the undersigned has caused this Power of Attorney to be executed as of this 28th day of October, 2004.<p><p>/s/ Richard A. Magnuson&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<br>Richard A. Magnuson<p><br> <p><p>
</PRE>
</BODY>
</HTML>

</TEXT>
</DOCUMENT>
</SUBMISSION>
