Holcim and ELEMENTAL present a net-zero prototype at the 2025 Venice Architecture Biennale showcasing a new method of building that addresses climate action and housing needs simultaneously.
The collaboration between Holcim and ELEMENTAL focuses on carbon neutrality and social housing, combining biochar concrete and incremental design to provide sustainable solutions.
The prototype, a structural sanitation unit, emphasizes the core needs of water, shelter, and infrastructure through an expandable framework, challenging traditional architectural approaches.
Holcim's biochar concrete technology, incorporating biochar derived from organic matter, offers a carbon sink solution that traps carbon permanently while maintaining structural integrity.
ELEMENTAL's incremental housing approach acknowledges the role of self-construction, particularly in developing countries, where housing is seen as an economic investment for owners and occupants.
The project at the Venice Biennale aims to set an example of sustainable construction practices that prioritize environmental impact and community needs over mere architectural aesthetics.
By showcasing a tangible built object rather than a theoretical proposal, the prototype aims to inspire policymakers and engineers to adopt similar environmentally conscious construction methods.
Alejandro Aravena emphasizes the pragmatic approach of the project, emphasizing the importance of making built structures work for people, the environment, and future generations.
The prototype redefines the concepts of time, space, and existence, framing them in the context of carbon accounting, participatory infrastructure, and inhabitation with agency.