Since 1992, RAU have played a leading role in the fields of environmentally aware construction and healthy indoor climates. The architectural firm has introduced various innovations and developed the first benchmarks with respect to carbon- and energy-neutral construction. Meanwhile, it has developed into the leading authority on energy-positive buildings and circular architecture.
In 2013, with RAU built the first circular building that also serves as a resources depot. In 2015, the first circular, energy-positive building was born – commissioned by Dutch grid company, Alliander. The office showed with this project that circular and energy-positive redevelopment can also be conducted on a large scale; the 23,000 m2 building produces 1.5 million kWh, annually. The first circular and remountable office building worldwide came to life in 2019 – Triodos Bank headquarters in Zeist. It contains 165,312 screws that allow dismantling and rebuilding elsewhere. Juf Nienke in Amsterdam, delivered in 2023, is the first circular, remountable and carbon neutral housing,