The base of the building forms a horizontal triangle with a dark exterior, which lead to poor circulation and offices with abnormal shapes but also gave it a modern appeal and was well-suited for receptions.

[6] Physical security measures, including a fence surrounding the chancery, were added after the September 11, 2001 attacks in the U.S. As of June 2016, some of the windows had the colors corresponding to those of the Rainbow Flag to give recognition to Pride Month.

The US$228,000,000 project has a particular focus on environmental features and is constructed by Walsh Group of Chicago and the architects/engineers are EYP Architecture & Engineering.

[1] The embassy at Makrellbekken in Oslo has achieved LEED Gold certification (Leadership in Energy and Environmental Design) for its numerous green elements.

The embassy’s environmental features includes the restoration of a seasonal stream that runs through the site, green roofs, preservation of existing landscape, maximized use of natural light and a ground-source heat exchange.