WASHINGTON, DC-Beacon Capital Partners just received LEED for Existing Buildings: Operations & Maintenance for ten office buildings it owns in the area--one of the largest portfolio LEED certifications for the Mid Atlantic, according to Evan Tyroler, vice president of Sustainability Services with Cassidy Turley. Tyroler led the team at Cassidy Turley that helped Beacon get the Silver certification for the combined 2.5 million square feet of office space.

The buildings are Lafayette Centre One, Two, and Three in the District’s CBD and Liberty Place, in the East End submarket. In Virginia, the buildings that received LEED Silver certification included John Marshall III and EJ Randolph II in Mclean, American Center East and American Center West in Vienna, 11111 Sunset Hills Rd. in Reston and the Zachary Taylor Building in Arlington.

Attaining LEED certification for a portfolio adds a layer of complexity to the process, Tyroler tells GlobeSt.com--but the efficiency improvements in operations and maintenance are such that companies are increasingly interested in taking the necessary steps. Currently, Cassidy Turley is in talks with other building owners in the area to implement a portfolio approach similar to Beacon’s, Tyroler adds.