New York-based architecture practice Beyer Blinder Belle (BBB) is known for projects that focus on the "planning, restoration, and the design of new buildings." Their latest project for the National Presbyterian Church in Washington, D.C., focuses on expanding and renovating one of D.C.'s historic mid-century modern church sites.

Designed by American architect Harold E. Wagoner in 1967, BBB continued with its 2016 master plan for the Church by designing two additions that offer new meeting rooms and added public space for members. According to firm Partner Hany Hassan, FAIA: "Our work introduces a contemporary entry and new central staircase, expressive and open in design, to draw people through all three levels of the Church." 

The new building additions include classrooms, meeting spaces, and an outdoor gathering space executed in salvaged limestone. In addition, a new staircase located at the center of the Church connects all three levels of the building, leading to views of the roof terrace and the updated garden below. Renovation details include terrace waterproofing, upgrades to the structure's HVAC and boiler, and improved lighting and technology infrastructure.

Aiming to improve the overall longevity of the Church and provide better building access, BBB sought to renovate an iconic building while "revitalizing the surrounding public space."