St. John Properties Completes Construction on New 75,000 Square Foot Class “A” Office Building at The GATE at APG

BALTIMORE, MD (February 25, 2013) – St. John Properties, Inc. has completed construction on 6190 Guardian Gateway, a new three-story, 75,000 square foot Class “A” office building located within The Government and Technology Enterprise (The GATE) project, a 416-acre business community located inside Aberdeen Proving Ground (APG) in Harford County. Currently 35% leased, the project represents the tenth office or research and development (R&D) building completed by St. John Properties within the past three years and one half years at the park, totaling more than 625,000 square feet of space. Two additional buildings, comprising 47,000 square feet of space, are under construction by the company.

6190 Guardian Gateway was designed and constructed to achieve Leadership in Energy and Environmental Design® (LEED) Silver Certification for environmental sustainability. Features that support this certification include a high-efficiency HVAC (heating, ventilating and air conditioning) system, high performance windows, sustainable lavatory fixtures, a white thermoplastic polyolefin (TPO) roofing system, significant open space and wetland/forest preserves, drought-tolerant landscaping, and low VOC (volatile organic compounds) paints, carpets and adhesives. In addition, the building has the potential to connect with APG’s exclusive secure IT network and will comply with federal antiterrorism/force protection requirements.

St. John Properties has the capacity to build up to two million square feet of Class “A” multi-story and single-story office space, as well as research and development (R&D) flex/office and retail space at The GATE. The project is the central location for contractors and agencies that support APG, with tenants including The Boeing Company, CACI, General Dynamics, CSC, Raytheon, Science Applications International Corporation (SAIC), Engility, DSCI and Lockheed Martin.

“Leasing activities at 6190 Guardian Gateway remain well ahead of expected pace, and we continue to experience encouraging demand among organizations interested in expanding or establishing their presence inside the fence line of APG,” stated Matt Holbrook, Regional Partner for St. John Properties, Inc. “As the next two commercial office buildings deliver in first quarter, we are planning the start of construction on the next phase of projects within The GATE. The bulk of leasing interest emerges from government contractors and other agencies that seek to join the APG community and co-locate with their federal customers. The GATE remains the only location that provides this connection to the APG community.”

About The GATE

The Government and Technology Enterprise (The GATE) is a 416-acre, state-of-the-art office and technology business park located immediately inside the main entrance to Aberdeen Proving Ground. Over the anticipated 10-year build-out of The GATE project, St. John Properties is developing the park for lease to government sector and non-government users. The Baltimore-based commercial real estate company also has the option to situate future buildings outside or inside the secure perimeter of APG. For more information about The GATE, visit

About St. John Properties

St. John Properties, Inc., founded in 1971 as MIE Properties, owns and has developed nearly 15 million square feet of R&D/flex, warehouse, office and retail space in Maryland, Colorado, Louisiana, Virginia and Wisconsin. For more information about the company, visit

For more information, contact:
Al Cunniff, Director of Marketing, St. John Properties, Inc.