How Architects Are Responding to Technology That Turns Buildings into Carbon Sinks
The Basic Services Unit, a full-scale housing prototype by ELEMENTAL and Holcim, presented in Venice during the 2025 Architecture Biennale. Image Courtesy of Holcim Awards
During the Time Space Existence exhibition, organized by the European Cultural Centre in Venice, the building-solutions company Holcim and Pritzker Prize-winning architect Alejandro Aravena, with his firm ELEMENTAL, unveiled a full-scale prototype that introduces a new approach in incremental housing solutions.
The housing prototype—The Basic Services Unit—was built with Hoclim's recently launched biochar technology, which transforms buildings into carbon sinks by permanently trapping carbon in a bio-based material called biochar. This material is used as a component of low-carbon concrete, cement, and mortars.
