The real professional masters not only his trade, but can also transmit it to ordinary people.

After a life as a social worker in a neighborhood of Amsterdam, bicycling around the globe to become a minimalist, and exploring my hands by practicing acupressure and reflexology…. In 1994, at the age of 48, I volunteered to help build a house (made with the light-straw-clay technique) in France.

The owner gave me the freedom to experiment, and so I learned, practiced and made many innovations. Last but not least, in autumn 1994, the CUT-technique (cell under tension) was invented. My mission then became advocating the human right of access to shelter: a roof, a home, a “cheztoi.”

The Flexagone is my concept of a whole house. I can teach any owner-builder (and team of volunteers) the way to build it- from the foundation to the roof- in 3 weeks. 

I have worked with this system in more than 15 countries, especially in eastern Europe, Australia, Canada, Spain and France.