The RAU architectural team, based in Amsterdam, adopts a particular attitude, defined by the term oneplanetarchitecture: RAU designs buildings with a strong emphasis on sustainability. Since 1992, the practice has been working for the public and private sectors, maintaining an approach that is conscious of planet earth and uses integral methodology. RAU is actively involved in the current international discussion on sustainability and in developing energy-saving technology and concepts for energy-producing buildings. In a world where so much nature is threatened by human activity, RAU considers it its mission to make a positive contribution through its presence and its work.

Designs by RAU are characterised by a proficient level of sustainability. Some even set new standards, like the head office of the WWF Netherlands. This former agricultural laboratory was transformed into a CO2-neutral and (almost entirely) self-sufficent office building. Provisional calculations for Le Carré de Soie, a CO2 neutral and energy surplus-producing mixed-use office complex in Lyon (to be completed in 2011) show promising results: LEED Platinum, BREEAM excellent, EPBD A++ and German Passivhaus status.