The redesign of 815 Connecticut Avenue was driven by a creative vision to transform an aging 1964 office building into a modern, sustainable, and world-class property in the heart of Washington DC. Spearheaded by John Jessen in collaboration with the owner, Alecta, the goal was to redefine the building’s identity and push the boundaries of what was possible in terms of sustainability, all while maintaining its full occupancy throughout the renovation.

The creative process began with a clear understanding of the building’s potential for revitalization. Phase I focused on upgrading the core systems, including the replacement of the chiller plant, to address energy efficiency and sustainability concerns. Phase II involved reimagining the building’s exterior. The façade was transformed to enhance both the building’s aesthetic appeal and its environmental performance, with a keen emphasis on modern materials and energy-saving innovations.

A key element of the design approach was maintaining the building’s operations without disruption, ensuring tenants could continue working while the transformation unfolded around them. This challenge was met with careful planning and execution, allowing the building to emerge as an icon of sustainability.

The result of this creative effort was a building that earned recognition for its achievements, including LEED® Platinum certification for Core and Shell and an ENERGY STAR® rating in the 90s. The project also became a celebrated example of sustainable design, with both President Obama and President Clinton visiting the building during construction to highlight it as a model for their Better Buildings Challenge program. Through thoughtful, forward-thinking design, 815 Connecticut Avenue was reborn as a true trophy building, setting new standards for sustainable office spaces in Washington, DC.

Project location: Washington, DC

Project size: 210,000 SF  –  LEED Certified Platinum

Work previously completed by John Jessen as Principal Architect with Architect-of-Record VOA Associates (now Stantec).