LEED features for Core & Shell include high-efficiency HVAC and white roofing systems ASHBURN, VA (October 31, 2016) – St. John Properties, Inc. has earned Leadership in Energy and Environment Design (LEED) Gold certification for Core & Shell from the United States Green Building Council (USGBC) for 44190 and 44200 Waxpool Road, two 54,120 square foot […]