US Embassy, Oslo

US Department of State

Oslo, Norway

Diplomatic Government

Oslo Exterior

When the US mission outgrew its space at Henrik Ibsens Gate, we worked closely with the Department of State and the City of Oslo Planning and Building Agency (OPBA) to realize an open, organic design sensitive to its Huseby Woods' site and neighbors. Balancing some of the world’s strictest energy and sustainability codes with the stringent security requirements of a modern US Embassy required cooperation, ingenuity and design diplomacy.

The Chancery presents a welcoming public face, its design inspired by the sheltering horizontal roofs typical of traditional Norwegian longhouse.  The underground siting of the Support Annex takes advantage of the rising terrain along the site’s southwestern edge to create an expansive green roof whose thickness (up to 7 feet) is capable of sustaining trees.

To preserve and restore the riparian environment, the path of a seasonal stream was altered to wrap to the south of the Chancery. The reinvigorated streambed manages stormwater runoff to conserve water. We also preserved a dense stand of mature trees along the southwestern edge of the site to serve as a natural buffer between the site and neighboring Huseby Woods.

Building Facts

  • 10 acres
  • 80,700 GSF
  • LEED Gold certified

Geothermal Energy

Norway prohibits the use of fossil fuels for heating, so most of the Embassy's power is derived from renewable resources.

90 % Peak heating load
100 % Peak cooling load
60 % Energy savings vs ASHRAE 90.1
40 % Energy savings vs Norwegian code

Geothermal or ground-source heat pumps enable the complex to meet nearly all of its peak heating and cooling loads with energy stored in bedrock by the heat pump, a renewable resource. Norwegian expertise in deep-water drilling helped us sink 54 double-looped wells – with nearly 40 miles of piping – through 1,000 feet of hard bedrock.

Green Details of the New US Embassy in Oslo

The design for the new embassy far exceeds some of the strictest energy and sustainability codes in the world.

Resource Efficiency

Further Reading

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