PRINCETON, NJ. & NEW YORK--(BUSINESS WIRE)--Chambers Street Properties (NYSE:CSG) (“Chambers Street”) and Gramercy Property Trust Inc. (NYSE:GPT) (“Gramercy”) today announced that they have entered into a definitive agreement to merge, creating the largest industrial and office net lease real estate investment trust, with an expected enterprise value of approximately $5.7 billion. The Board of Trustees of Chambers Street and the Board of Directors of Gramercy have unanimously approved the merge