State of Earth. Pisé as Cantonal Strategy for Low-carbon Housing in Les Plaines du Loup

David Gindroz

Trapped in a relentless cycle of extraction, construction, and demolition, the built environment fuels capital accumulation while depleting natural resources. Gravel pits lie at the heart of this mechanism, supplying raw materials for growth while absorbing the waste left by previous cycles. This project seeks to disrupt that vicious circle by proposing a regenerative approach that reclaims the past to shape a more sustainable future. Rather than viewing heritage and waste as obsolete or disposable, it recognizes them as valuable resources with untapped potential. Set in the Plaine du Loup (Part 4), the project reimagines a site initially designated for a concrete tower. This area is owned by the Canton of Vaud and developed by the municipality; it requires a devoir d'exemplarité—best practice. The project centers on pisé [rammed earth], a material that reuses soil displaced from construction. Not only does this approach recycle existing materials considered waste, but it also significantly reduces CO2 emissions in the building sector. The project thus offers a viable solution for local authorities to fulfill their devoir d’exemplarité and comply with cantonal regulations on the management of excavated earth. Due to the structural limitations inherent in pisé, the project embraces low-rise construction, promoting a human-scale urban environment. The buildings create a new neighborhood, combining the material’s structural logic with flexible design approaches, and the program aligns with the city’s goals, particularly regarding functional and social diversity.

Files
Énoncé (PDF), Planche (PDF)
LINKS
Team
Teachers:
Charlotte Malterre-Barthes, Marion Moutal, Sarah Nichols
Supervision team:
Malterre-Barthes, Charlotte (dir. pédagogique) ; Nichols, Sarah (prof.) ; Moutal, Marion (mentor·e) ; Patteeuw, Véronique (expert·e)
Professor in charge of the statement:
Nichols, Sarah (ENAC IA THEMA)
Unit:
SAR, RIOT
Infos
Year:
2025
Period:
Fall
Category:
Master Project
Copyright:
CC BY Licence
Theoretical statement

Aggregates Economies: Material Cycle and Capitalist Urbanization in the Canton de Vaud

Permalink
livingarchives.epfl.ch/projects/7630/state-of-earth-pise-as-cantonal-strategy-for-low-carbon-housing-in-les-plaines-du-loup/