FOR IMMEDIATE RELEASE
General Inquiries: Joe Trinkle, Liberty Property Trust, 281/955-2000
Media Contact: Margo Hunt Winans, a.s.a.p.r., 757/404-8653

LIBERTY PROPERTY TRUST RECEIVES LEED® SILVER CERTIFICATION FOR ITS CENTRAL GREEN 9 BUILDING IN HOUSTON

HOUSTON – June 15, 2009 - Liberty Property Trust (NYSE:LRY), the real estate investment trust that owns and manages approximately 3.8 million square feet of warehouse and distribution space in Houston, today announced that its 16680 Central Green Drive Building 9 building officially has earned LEED Silver certification from the U.S. Green Building Council (USGBC). This project marks the first industrial building in Houston to receive LEED certification.

“Industrial buildings can have a substantial environmental impact, so it was a very easy decision to incorporate sustainable design from the onset of the project’s inception,” said Joe Trinkle, vice president and city manager for Liberty’s Houston region. “Our team was able to reduce the buildings overall operating costs while conserving natural resources, positively impacting the environment and the local economy. Central Green 9 is Houston’s first LEED certified industrial building and will look forward raising the bar and to developing more high performance buildings in the region.”

LEED is the USGBC’s leading measurement rating system for designing and constructing the world’s greenest, most energy efficient, and high performing buildings. LEED Silver certification of the Central Green 9 building was based on a number of green design and construction features that positively impact the project itself and the broader community. These features include: waterless urinals, low-flow shower heads and sensor faucets, high energy-efficient HVAC equipment with special filters and carbon dioxide monitors, a highly reflective TPO roof membrane, as well as low VOC (volatile organic compounds) emitting paints, carpet and adhesives.

“Liberty is leading the way in sustainable design for industrial buildings,” said Perry E. Seeberger, AIA, founder of Seeberger + Associates Architects who served as Liberty’s LEED consultant. “With more than 30 years of experience in design of industrial buildings, I am proud to be teamed with Liberty and its commitment to development and ownership of sustainable, healthy, energy efficient buildings. For a tenant, this translates to lower operating cost for their business and a healthier work environment for their employees.”

Central Green 9 is a 63,600 square foot class "A" warehouse building which offers 20 dock-high loading doors, two grade level ramps, 24’ warehouse clear height, 140 customer/visitor parking spaces, and an ELO sprinkler system. Liberty’s LEED team on the project was Seeberger + Associates (architect) and Cadence McShane Corporation (design build) and Jay Ohanesian was the project manager for Liberty.

Liberty and LEED®/Sustainable Development
Liberty has been recognized for its commitment to sustainable design and its positive impact on its tenants’ employees, the environment and its communities. Most recently, Liberty was named the National Association of Industrial and Office Properties (NAIOP) 2008 Developer of the Year. This award is presented annually to one member-developer company that best exemplifies leadership and innovation in the commercial real estate industry. Liberty is also the proud recipient of the CoreNet Global 2008 Sustainability Leadership Award for Design & Development and the 2007 NAIOP Green Development Award. The company was also honored with the U.S. Green Building Council’s 2006 LEED Corporate Leadership Award, recognizing outstanding leaders in green building that demonstrate exceptional vision, leadership, and commitment to the evolution of green building design and construction. Liberty has invested more than $1 billion in sustainable developments.

About Liberty Property Trust:
Liberty Property Trust (NYSE:LRY), headquartered in Malvern, PA, is dedicated to enhancing people’s lives through extraordinary work environments. The real estate investment trust (REIT) serves customers in the United States and United Kingdom through the development, acquisition, ownership and management of superior office and industrial properties. Liberty's 77 million square foot portfolio offers exceptional locations and flexible design to more than 2,100 tenants at approximately 750 office, distribution and light manufacturing facilities. The company has received numerous recognitions for its leadership, customer service and commitment to the development of high performance green buildings and was recently recognized as the 2008 NAIOP (National Association of Industrial and Office Properties) Developer of the Year. For more information visit www.libertyproperty.com.