Digital Realty announces Director of Operations

Menlo Park, Calif. (May 10, 2005) - Digital Realty Trust, Inc. (NYSE: DLR), an owner and manager of technology-related properties, today announced that data center industry veteran Ted Martin has joined the company as Director of Operations. In this role, Mr. Martin will be responsible for ensuring that Digital Realty delivers enhanced reliability and uptime to clients by managing all facets of Digital Realty's critical facility operations, including maintenance procedures, security and customer service. Mr. Martin brings nineteen years of data center operations and management experience to Digital Realty Trust, including specialized expertise in areas such as preventive/predictive maintenance, energy management systems, electrical infrastructure and HVAC distribution systems in mission critical data center environments.

Prior to joining Digital Realty, Mr. Martin was a Regional Manager for Critical Facilities Engineering at EDS in Plano, Texas where he managed the maintenance, upgrades and operations of all mission critical data centers. In this role, he managed a team of ten data center professionals and previously coordinated facilities/engineering functions for 4.5 million-square feet of office and data center space with a team of 45 building and data center engineers. At EDS, Mr. Martin successfully modified and upgraded several of the company's 150+ data centers consisting of approximately 2.5 million-square feet of raised floor space, without business interruption. Mr. Martin also implemented numerous initiatives to improve operational efficiency including a number that resulted in annual cost savings of hundreds of thousands of dollars.

Mr. Martin's accreditations include a Master Electrical License and Air Conditioning Contractors License from the State of Texas, and a Universal Certification for Refrigeration Transition and Recovery; and Mr. Martin's industry affiliations have included ASHRAE (American Society of Heating Refrigeration and Air-Conditioning Engineers), BOMA (Building Owners and Managers Association), NFPA (National Fire Protection Association), 7x24 and IFMA (International Facility Management Association).

"Ted Martin is one of the most outstanding operations managers in the data center industry, and we are proud to announce that he will serve as Director of Operations for Digital Realty," said Michael F. Foust, Chief Executive Officer of Digital Realty Trust. "Ted has hands-on experience successfully managing projects ranging from small installations up to multi-million dollar data center build-outs, and he has demonstrated a profound commitment to seek out ways to improve operational efficiency. Ted will be a tremendous resource for Digital Realty's tenants, helping them to achieve not only their technical objectives but also their business goals."

About Digital Realty Trust, Inc.

Digital Realty Trust, Inc. (NYSE: DLR) owns, acquires, repositions and manages technology-related real estate. The company's 26 properties contain applications and operations critical to the day-to-day operations of technology industry tenants and corporate enterprise data center tenants. Comprising approximately 6.3 million net rentable square feet, Digital Realty Trust's property portfolio is located throughout the United States, with one property located in London, England. For additional information, please visit the company's website at www.digitalrealtytrust.com.