Located in Fairfax County, the center sits off Interstate 66 andRoute 28, within close proximity to Washington Dulles InternationalAirport. Stonegate II will be a six-story building with an addresson Conference Center Drive, and will be home to the governmentcontractor's Integrated Systems & Solutions division. Lockheedbroke ground on the six-story Stonegate I, an approximately142,000-sf structure, in 1999 and wrapped up construction of theoffice facility in 2000.

A development cost for Stonegate II has not been made available.However, the construction price tags on other office buildings inthe area provide a point of reference. Developer Corporate OfficeProperties Trust closed on a $32-million credit facility in 2005 tofinance the construction of Washington Tech Park II, a 250,000-sfoffice building also located within Westfields Corporate Center.According to construction cost data services provider SaylorPublications Inc., depending on the type of building material andnot including land, the average development cost for a four- toseven-story office building is approximately $23.2 million.