The Aegis
Harford County

10th building completed at The GATE in Aberdeen

A concept photo shows 6190 Guardian Gateway, the 10th building recently completed by St. John Properties at The GATE, the company's 416-acre business community just inside the Aberdeen Proving Ground boundary near the post's Route 715 entrance.

St. John Properties Inc. said it has completed construction on 6190 Guardian Gateway, a new three-story, 75,000-square-foot office building within the boundary of Aberdeen Proving Ground.

The building is the 10th St. John has completed at its 416-acre business community called The Government and Technology Enterprise, or The GATE, the company said in a news release. The development, an enhanced use lease project on U.S. Army property, is inside APG's Route 715 gate.


According to the release, the new building is 35 percent leased.

St. John said its completed buildings at The GATE encompass 625,000 square feet of floor space. Two additional buildings, comprising 47,000 square feet, are also under construction.


The company said it has capacity to develop up to 2 million square feet of multi- and single-story office space, as well as research and development and flex/office and retail space in the project.

Tenants in The GATE buildings include The Boeing Company, CACI, General Dynamics, CSC, Raytheon, Science Applications International Corporation (SAIC), Engility, DSCI and Lockheed Martin, the company said.

According to the Baltimore-based development company, 6190 Guardian Gateway was designed and constructed to achieve Leadership in Energy and Environmental Design, or LEED, Silver Certification for environmental sustainability. Features that support this certification include a high-efficiency HVAC system, high performance windows, sustainable lavatory fixtures, a white thermoplastic polyolefin roofing system, significant open space and wetland/forest preserves, drought-tolerant landscaping and low volatile organic compound paints, carpets and adhesives. The building also has the potential to connect with APG's exclusive secure IT network and will comply with federal anti-terrorism/force protection requirements.