Holcim, COBOD, and PERI complete 12-unit 3D printed social housing project in Bezannes, France

Holcim has successfully completed the ViliaSprint² residential project in Bezannes, France, a 12-unit social housing development spanning 800 m2. The project was executed by Plurial Novilia, a subsidiary of Action Logement, utilizing COBOD 3D printers and Holcim's TectorPrint binder technology. This specific material system offers two distinct formulations: a ready-to-print version and a double-mixed variant capable of producing micro mortar or concrete with compressive strengths ranging from 15 to 90 MPa. The construction of this three-story structure was completed within a one-year timeframe, involving technical collaboration with PERI 3D Construction and HOBO Architecture.

This deployment addresses the critical need for scalable, low-carbon construction solutions in the European residential sector. By utilizing additive manufacturing for multi-story structures, Holcim is tackling the high regulatory and technical barriers associated with dense urban housing. The project data indicates a 10% reduction in concrete consumption and a 30% reduction in CO2 emissions compared to traditional methods. Furthermore, the wall construction phase was completed in 50% of the time required by conventional masonry, demonstrating a clear path toward mitigating labor shortages and reducing the physical intensity of onsite construction tasks.

For Holcim, the success of the ViliaSprint² project provides a controlled comparative dataset against traditional building methods through the use of side-by-side identical structures. The primary technical hurdle remains the standardization of multi-story 3D printed elements to satisfy stringent European building codes. Future scalability will depend on the ability to maintain these material strength profiles (up to 90 MPa) across larger, more complex architectural geometries while maintaining the observed 30% carbon reduction advantage.