Digital Realty Trust, Inc. Facility Earns First LEED Gold Certification in the U.S. Datacenter Industry

Digital Realty Trust’s Chicago Facility Sets New Standard for Energy Efficiency and Environmentally-Friendly Design among U.S. Datacenter Facilities

SAN FRANCISCO, Oct. 31 /PRNewswire-FirstCall/ — Digital Realty Trust, Inc. (NYSE: DLR), a leading owner and manager of corporate datacenters and Internet gateways, has earned the datacenter industry’s first LEED Gold Certification. The project is a Build-to-Suit datacenter for a Fortune Global 500 company located in Digital Realty Trust’s 350 East Cermak Road facility in Chicago. The recently LEED Gold certified datacenter features 20,000 square feet of raised-floor space with 4,000 kW of available IT load.

The Leadership in Energy and Environmental Design (LEED) Green Building Rating System(TM) is the nationally accepted benchmark for the design, construction, and operation of high performance green buildings. LEED gives building owners and operators the tools they need to have an immediate and measurable impact on their buildings' performance. LEED promotes a whole-building approach to sustainability by recognizing performance in five key areas of human and environmental health: sustainable site development, water savings, energy efficiency, materials selection, and indoor environmental quality.

“This is an important milestone for Digital Realty Trust and for the entire datacenter industry. This facility establishes a new benchmark for energy efficient datacenters, and it reflects Digital Realty Trust's continued leadership in implementing green datacenter initiatives that make sense for our corporate customers' bottom line and for their commitment to the environment,” said Michael F. Foust, CEO of Digital Realty Trust.

“LEED certification is a widely respected standard for evaluating green design, construction and operations for facilities, and it is rapidly emerging as a competitive advantage in the datacenter market. Customers are increasingly making green criteria a core element of their selection process for datacenter decisions. Our ability to offer LEED-certified facilities along with our proven track record of green initiatives makes us uniquely qualified to meet these customer requirements,” said Jim Smith, Vice President of Engineering at Digital Realty Trust. “We initiated this LEED certification more than 12 months ago — well before other datacenter companies started their certification processes — and our continued efforts in this area will keep us on the forefront of green datacenter initiatives in the industry.”

Smith added, “This project shatters the myth that LEED certification can only be achieved within newer facilities. The initial phase of the 350 E. Cermak Road facility was originally constructed in 1917 as the R.R. Donnelly printing plant facility. Digital Realty Trust prides itself as a leader in these green datacenter initiatives, and this leadership is evidenced by our innovative approaches in both new and existing facilities.”

A number of additional Digital Realty Trust datacenter facilities are also currently undergoing LEED certification and are projected to receive Gold or Silver certifications, including:
    —  Turn-Key Datacenter(TM) in Chicago with 54,000 square feet of
        raised-floor space and 6,750 kW of IT load;
    —  Turn-Key Datacenter(TM) in Northern Virginia with 32,000 square feet
        of raised-floor space and 4,500 kW of IT load; and
    —  Turn-Key Datacenter(TM) in Santa Clara, California with 30,000 square
        feet of raised-floor space and 4,050 KW of IT load.

“LEED guidelines incorporate so many proven best practices for building engineering and construction,” Smith continued. “Following those best practices results in facilities that are very cost-effective from both a construction and operations point of view. Anything that makes datacenters more efficient is a good thing from a business point of view — both for our Digital Realty Trust and for our customers. We look forward to rolling out more LEED certified facilities in the near future.”

For more information about LEED Gold Certification, visit http://www.usgbc.org/DisplayPage.aspx?CategoryID=19.

About Digital Realty Trust, Inc.

Digital Realty Trust, Inc. owns, acquires, repositions and manages technology-related real estate. The Company is focused on providing Turn-Key Datacenter(TM) and Powered Base Building(TM) datacenter solutions for domestic and international tenants across a variety of industry verticals ranging from information technology and internet enterprises, to manufacturing and financial services. Digital Realty Trust's 66 properties, excluding one property held as an investment in an unconsolidated joint venture, contain applications and operations critical to the day-to-day operations of technology industry tenants and corporate enterprise datacenter tenants. Comprising approximately 11.9 million rentable square feet, including 1.8 million square feet of space held for redevelopment, Digital Realty Trust's portfolio is located in 26 markets throughout North America and Europe. For additional information, please visit Digital Realty Trust's website at http://www.digitalrealtytrust.com.

Safe Harbor Statement

This press release contains forward-looking statements which are based on current expectations, forecasts and assumptions that involve risks and uncertainties that could cause actual outcomes and results to differ materially. Such forward looking statements include statements related to receiving LEED certification for future Turn-Key Datacenter(TM) project, including those currently under construction. These risks and uncertainties include adverse economic or real estate developments in the Company's markets or the technology industry; general economic conditions; defaults on or non- renewal of leases by tenants; increased interest rates and operating costs; inability to manage domestic and international growth effectively; failure to obtain necessary outside financing; decreased rental rates or increased vacancy rates; difficulties in identifying properties to acquire and completing acquisitions at acceptable return levels; failure to successfully operate acquired properties and operations; failure of acquired properties to perform as expected; failure to successfully redevelop properties acquired for such purposes or unexpected costs related thereto; failure to maintain the Company's status as a REIT; environmental uncertainties and risks related to natural disasters; financial market fluctuations; changes in foreign currency exchange rates; risks of operating in foreign markets; and changes in real estate and zoning laws and increases in real property tax rates. For a further list and description of such risks and uncertainties, see the reports and other filings by the Company with the United States Securities and Exchange Commission, including the Company's annual report on Form 10-K for the year ended December 31, 2006. The Company disclaims any intention or obligation to update or revise any forward-looking statements, whether as a result of new information, future events or otherwise.
     For Additional Information:

     A. William Stein                        Pamela A. Matthews
     Chief Financial Officer and             Investor/Analyst Information
     Chief Investment Officer                Digital Realty Trust, Inc.
     Digital Realty Trust, Inc.              (214) 231-1350
     (415) 738-6500

     Chris Crosby
     Sales & Technical Operations
     Digital Realty Trust, Inc.
     (415) 738-6500
SOURCE Digital Realty Trust, Inc.

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