Thierry Buache, architect of the Porteous project in Vernier: 'It is essential to compose with what is already there'

Architect Thierry Buache, associated with the firm Sujets Objets, has been a key figure in the Porteous project in Vernier since discovering the site in 2017. His initial engagement involved dedicating his architecture diploma thesis to the Aïre peninsula, where he envisioned transforming two disused buildings of the former wastewater treatment plant, Porteous and La Verseuse, into a cultural center.

Buache, a native of Geneva, has since championed the project, initiating numerous participatory workshops. These community-driven efforts have been integral to the project's progression, culminating in a feasibility study conducted in 2025. This sustained involvement underscores his commitment to the site's revitalization.

The project's philosophy, often described as "taking care of the building," deeply resonates with Buache's architectural ethos. This approach prioritizes integrating new interventions with the existing fabric of the site, respecting its history and character. It reflects a conscious effort to compose with the built environment as it stands, rather than imposing entirely new structures.

Buache's work on the Porteous project aligns with a broader social approach to architecture. This involves not only the physical repurposing of abandoned buildings but also fostering a sense of community ownership and engagement. The participatory workshops are a testament to this, empowering local residents to contribute to the project's development and ensuring that the final outcome is reflective of their needs and aspirations.