Innovative programs and tenant partnerships
generate $5 million in energy cost savings since 2009

MALVERN, PA - March 14, 2013 - For the second consecutive year, the U.S. Environmental Protection Agency (EPA) has named Liberty Property Trust a 2013 ENERGY STAR® Partner of the Year for strategically managing and improving the energy efficiency of its office and industrial building portfolio. Since benchmarking its energy use across its portfolio in 2008, the company has saved its tenants more than $5 million in the 130+ buildings in which it controls energy flow.

For more than a decade, Liberty Property Trust has led the commercial real estate industry in the development, management and operations of sustainable buildings. The company has certified more than 100 buildings with Energy Star and developed more than 40 LEED commercial buildings. It has designed and implemented innovative programs such as Building Wide Access Network, a proprietary real-time energy management system, and "LEEP" - the Liberty Energy Efficiency Partnership program - which creates a "win-win" scenario for energy savings in partnership with tenants.

"Landlords often don't want to invest in ways by which only tenants receive direct savings, and tenants are often less enthusiastic about investing because they don't have ownership," said Marla Thalheimer, Director of Sustainability for Liberty. "Landlord/tenant partnerships can result in highly successful outcomes. 'LEEP,' for example, is designed so that we can work with tenants on benchmarking their own energy usage data and then provide them with ongoing reports and ideas on ways to save energy. This results in very real energy savings for tenants and more efficient buildings for Liberty."

According to Bob Perciasepe, Acting Administrator, U.S. Environmental Protection Agency, Liberty was selected as an Energy Star Partner of the Year because, "Superior energy management is our most cost-effective climate strategy and Liberty Property Trust continues to exemplify leadership in this category. The company's innovative practices provide a model for energy management in the places we work, shop, and play. These strategies help the bottom line and support the well-being of families across America by reducing pollution and protecting the environment."

Liberty also proactively brings energy saving programs and ideas to tenants and the public through the Liberty Green Guide website (www.LibertyGreenGuide.com.) The site is a source of information and case studies highlighting energy saving ideas and initiatives that are useful to both tenants and others in the wider community.

EPA's annual ENERGY STAR Awards honor organizations that have made outstanding contributions to protecting the environment through superior energy efficiency. The award winners are selected from about 20,000 partners that participate in the ENERGY STAR program and will be recognized at an awards ceremony in Washington, D.C., on March 15, 2012. Over the past 20 years, American families and businesses have saved nearly $230 billion on utility bills and prevented greenhouse gas emissions equal to those from more than 350 million vehicles with help from ENERGY STAR.

About Liberty Property Trust

Headquartered in Malvern, PA, Liberty (NYSE:LRY) 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 81 million square foot portfolio includes 680 properties providing office, distribution and light manufacturing facilities to 1,800 tenants. The company is a leader in the development of high performance green buildings. For more information please visit www.libertyproperty.com.

About ENERGY STAR

ENERGY STAR was introduced by the U.S. Environmental Protection Agency in 1992 as a voluntary market-based partnership to reduce greenhouse gas emissions through increased energy efficiency. Now celebrating its 20th anniversary, ENERGY STAR offers businesses and consumers energy-efficient solutions to save energy, money and help protect the environment for future generations. About 20,000 organizations are ENERGY STAR partners committed to improving the energy efficiency of products, homes, buildings and businesses. For more information about ENERGY STAR, visit www.energystar.gov or call toll-free 1-888-STAR-YES (1-888-782-7937).

Media Contact: Robbie Tarpley Raffish, a.s.a.p.r., 443-944-9301
Liberty Contact: Marla Thalheimer, 610-722-4150
Energy Star Contact: Kristinn Vazquez, 202-343-9062


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