It is a group of offices and architects: PLAN01 is a unique organisation that brings together ten partners and four associated offices (Atelier du Pont, BP Architectures, KOZ and Atelier Philéas); they share a workspace in the 12th arrondissement of Paris.

Founded in 2002, it is a completely different kind of architectural organisation, characterised by an innovative, diverse and avant-garde approach. It is a utopian creation of architects who run their own offices.

The group works together to realize imaginative projects, sometimes venturing into related fields such as publishing, culture, and event organization. They always divide their projects into segments in which all ten partners participate.