Digital Realty Trust, Inc. has announced leasing results for the fourth quarter and year-end 2010.

The Company signed leases during the quarter ended December 31, 2010 totaling approximately 478,000 sq ft of space. This includes over 89,000 sq ft of Turn-Key Datacenter space leased at an average annual GAAP rental rate of $184.00 per sq ft, approximately 234,000 sq ft of Powered Base Building space leased at an average annual GAAP rental rate of $39.00 per sq ft, and approximately 155,000 sq ft of non-technical space leased at an average annual GAAP rental rate of $20.00 per square foot.

"Our fourth quarter lease signings reflect strong demand for both our Turn-Key Datacenter and Powered Base Building products across multiple industry verticals in the U.S. as well as Europe," said Michael F. Foust, CEO of Digital Realty Trust. "Rental rates, particularly for our Turn-Key Datacenter space, vary from market to market, impacting quarterly results. Markets where we saw the strongest pricing for Turn-Key Datacenter space during the year were Santa Clara and New York Metro, which is reflected in our second and third quarter 2010 lease signings."

Of the total leases signed during the fourth quarter of 2010, approximately 440,000 sq ft was for space located in the Company's U.S. portfolio. This includes approximately 65,000 sq ft of Turn-Key Datacenter space leased at an average annual GAAP rental rate of $152.00 per sq ft, approximately 227,000 sq ft of Powered Base Building space leased at an average annual GAAP rental rate of $37.00 per sq ft, and 148,000 sq ft of non-technical space leased at an average annual GAAP rental rate of $19.00 per sq ft.

Leases signed during the fourth quarter of 2010 for space in the Company's European portfolio totaled over 37,000 sq ft. This includes approximately 24,000 sq ft of Turn-Key Datacenter space leased at an average annual GAAP rental rate $268.00 per sq ft, approximately 6,700 sq ft of Powered Base Building space leased at an average annual GAAP rental rate of $104.00 per sq ft, and approximately 6,600 sq ft of non-technical space leased at an average annual GAAP rental rate of $43.00 per sq ft.

For the twelve months ended December 31, 2010, the Company signed leases totaling approximately 1.2 million sq ft of space. This includes approximately 519,000 sq ft of Turn-Key Datacenter space leased at an average annual GAAP rental rate of $172.00 per square foot, approximately 379,000 sq ft of Powered Base Building space leased at an average annual GAAP rental rate of $45.00 per square foot, and over 262,000 sq ft of non-technical space leased at an average annual GAAP rental rate of $22.00 per sq ft.

"We saw momentum in our sales activity continue to increase over the course of 2010, resulting in our strongest annual leasing performance to date in terms of square footage and total contract value of $1.2 billion. These results represent an increase of over 160% in total square footage and an increase of over 100% in annualized GAAP rent over 2009 lease signings," added Foust. "Enterprise demand is driven by the consistent growth of applications in corporate IT departments as well as growth in providers of colocation and managed services. Our inventory of redevelopment space combined with the just-in-time delivery of our Turn-Key Datacenter and Powered Base Building products enable customers to expand their datacenter operations with minimal capital and execution risk. We believe these factors will continue to drive growth for the Company as we continue to meet our customers' requirements for secure, reliable and cost effective data center facilities."

For the quarter ended December 31, 2010, the Company commenced leases totaling approximately 143,000 sq ft of space. This includes approximately 100,000 sq ft of Turn-Key Datacenter space leased at an average annual GAAP rental rate of $210.00 per sq ft, approximately 1,200 sq ft of Powered Base Building space leased at an average annual GAAP rental rate of $78.00 per sq ft, and approximately 42,000 sq ft of non-technical space leased at an average annual GAAP rental rate of $9.00 per sq ft.

For the twelve months ended December 31, 2010, the Company commenced leases totaling over 652,000 sq ft of space. This includes approximately 420,000 sq ft of Turn-Key Datacenter space leased at an average annual GAAP rental rate of $159.00 per sq ft, approximately 91,000 sq ft of Powered Base Building space leased at an average annual GAAP rental rate of $32.00 per sq ft, and approximately 141,000 sq ft of non-technical space leased at an average annual GAAP rental rate of $20.00 per sq ft.