SEC Form 3

FORM 3

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person* Crosby Christopher James JR (Last) (First) (Middle) DIGITAL REALTY TRUST 2323 BRYAN STREET, SUITE 2350 (Street) DALLAS TX 75201 (City) (State) (Zip)	2. Date of Event Requiring Statement (Month/Day/Year) 08/15/2005	3. Issuer Name and Ticker or Trading Symbol Digital Realty Trust, Inc. [ DLR ]
		4. Relationship of Reporting Person(s) to Issuer (Check all applicable) Director 10% Owner X Officer (give title below) Other (specify below) VP, Sales & Technical Services	5. If Amendment, Date of Original Filed (Month/Day/Year)
			6. Individual or Joint/Group Filing (Check Applicable Line) X Form filed by One Reporting Person Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Beneficially Owned
1. Title of Security (Instr. 4)	2. Amount of Securities Beneficially Owned (Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	4. Nature of Indirect Beneficial Ownership (Instr. 5)

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Long Term Incentive Units	(4)	(3)	Common Stock	16,163	(2)	D
Common Stock Options	(1)	10/28/2014	Common Stock	60,611	$12	D

Explanation of Responses:

1. Represents an option to purchase common stock in the Issuer, which will vest in equal annual installments of 25% on each of the first four anniversaries of October 28, 2004.

2. 1 for 1

3. N/A

4. Represents long-term incentive units in Digital Realty Trust, L.P. a Maryland Limited Partnership (the "Operating Partnership"), of which the Issuer is the general partner. These long-term incentive units have obtained full parity with common limited partnership units of the Operating Partnership and 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.

	Christopher J Crosby Jr	08/11/2005
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 5 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
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