Great Glazing: The Hepburn

The Hepburn - glass facade

Photo (above) 2016 ©Sam Kittner/ kittner.com. Photo (below right) courtesy of Pioneer Cladding & Glazing Systems

The Hepburn - glass facade detailThe basics: The Hepburn, a new luxury apartment tower in Washington, D.C., sits adjacent to the historic Washington Hilton at the intersection of the Dupont Circle and Kalorama neighborhoods. The 260,000-square-foot apartment building was designed as a distinct but architecturally respectful addition to the existing hotel with a contemporary glass façade that helps achieve that goal. The façade maximizes daylighting and views in the 12-story building.

The players: Architect, Beyer Blinder Belle Architects & Planners; general contractor, Lendlease; contract glazier, Pioneer Cladding & Glazing Systems; glass manufacturer, Guardian Glass; glass fabricator, J.E. Berkowitz

The glass and systems: The 195-unit building incorporates 62,300 square feet of glass. Guardian Glass supplied SunGuard SuperNeutral 54 glass for the project’s Winduo insulating glass units from J.E. Berkowitz.

The high-performance glass delivers a visible light transmission of 54 percent, while minimizing glare with a neutral appearance and solar heat with a low solar heat gain coefficient of 0.28.

Built on top of an existing two-story parking garage, the project required approval by the Historic Preservation Review Board. The glass façade mimics the Washington Hilton’s semicircular form and complements the hotel’s concrete grid work.

According to Hany Hassan, Beyer Blinder Belle, “Glass enabled our team to create an iconic building on this prominent site, while also providing abundant natural daylighting and expansive views from the residences.”