He is also Director of the Circular Construction Lab. He was previously Head of Research, Professorship of Sustainable Construction at Karlsruher Institut für Technologie (KIT) (2017-19) and the Future Cities Laboratory (FLC) in Singapore (2012-19).

Felix Heisel's work centers on the systematic rethinking of our built environment as resource storage in a sustainable cycle of use and reconfiguration – a radical paradigm change toward cultivating, breeding, raising, farming, or growing future resources borrowed from their technical and biological cycles for a period of time before being returned into circulation once more. He commenced at Cornell University in January 2020.

He is an architect and academic working towards the systematic rethinking of our built environment as resource storage in an endless cycle of use and reconfiguration. He is co-founder and partner of 2hs Architekten und Ingenieur (Hebel Heisel Schlesier), practicing architecture with a focus on resource-respectful construction and circular materials, currently practicing architecture in Germany and Switzerland.

He has previously engaged in teaching and research at universities including the Swiss Federal Institute of Technology (ETH Zurich), Switzerland; Ethiopian Institute of Architecture, Building Construction & City Development (EiABC) in Addis Ababa, Ethiopia; the Berlage Institute in Rotterdam, the Netherlands; and the University of the Arts Berlin, Germany. He completed a Masters of Architecture at Universität der Künste Berlin (2010).

Felix Heisel is author of Building Better – Less – Different: Circular Construction and Circular Economy (Birkhäuser, 2022), Addis Ababa: A Manifesto on African Progress (2020, Ruby Press) with Hebel, Wisniewska and Nash, Cultivated Building Materials: Industrialized Natural Resources for Architecture and Construction (2017, Birkhäuser, with Dirk Hebel), Lessons of Informality: Architecture and Urban Planning for Emerging Territories - Concepts from Ethiopia (2016, Birkhäuser, with Bisrat Kifle) and Building from Waste: Recovered Materials in Architecture and Construction (2014, Birkhäuser, with Dirk Hebel and Marta Wisniewska). He has contributed articles to magazines and books such as “Formal, Informal and Forms Of In-Between” in SLUM Lab 9: Made in Africa (2014, Urban Think Tank), and “Local Alternatives: Replacing Steel with Bamboo” in Economy of Sustainable Construction (2013, Ruby Press). His interest in Ethiopia’s urban growth resulted in the making of the movie series _Spaces, a collection of six documentaries on space appropriation in Addis Ababa, started together with Bisrat Kifle in 2011.

He has won awards and grants including the JEC Asia Innovation Award (2016), Ministry of Education (MOE) Innovation Grant Singapore (2014), ZUMTOBEL GROUP Award (2014), Swiss KTI project fund (2014), SMART Innovation Grant Singapore (2013), and the Bauhaus.SOLAR Award (2012). He also contributed to several architectural competition entries, such as the 1st prize Sulzer Werk 1 Winterthur, Switzerland (2009) with Gigon/Guyer Architects; the 1st prize Bole Road Hotel Competition Addis Ababa, Ethiopia (2009) with Zegeye Cherenet Architects & Associates and the 3rd prize Städel Museum Frankfurt, Germany (2008) with Gigon/Guyer Architects.