The programme proposed by the company Récipro-Cité © raised the question of a modular, reusable layout, adaptable to the activity and to the work spaces. The architectural choice was to imagine a material continuum piece of furniture, generating ergonomic spaces, favouring collaborative work. Thus, the furniture structures the whole of the offices, and offers it a unity, while revealing the generous spaces. Wide open and planted, the spaces play with transparency to preserve intimacy. A coloured soffit reinforces the system and allows the integration of lighting.