Campus LyonTech-la Doua

Construction choices

The construction choices were guided by ease of implementation, energy performance, and durability, as well as the reliability of the chosen technique. The extensions and external walkways are built with a metal structure, ensuring good separability and easy recycling of materials at the end of their life cycle. In the same logic, the external insulation of façades and roofing is made of non-glued insulation.

Controlled construction site

The environmental quality of a project is also assessed by the measures taken during the construction phase to limit the nuisances and pollution it generates and to ensure cleanliness.

The objectives of this approach were to guarantee a clean site, minimize disruptions caused by construction vehicle movements, reduce noise pollution from the site, limit pollution affecting residents, workers, and ecosystems, and finally ensure selective waste management and collection with a goal of recycling at least 50% of the total waste generated by the site.

It was also essential to maintain the activity of the laboratories without impacting the researchers’ work.

Integrating the technical aspects

Plug-type extensions have been created. These simple, monolithic volumes are attached to the gable ends of the buildings and house vertical circulation as well as certain storage areas for hazardous materials. This arrangement limits the impact of construction on the site’s operations, facilitates the reorganization of interior spaces, and allows for the integration of necessary utility networks to provide high-performance laboratories.

Several teaching and laboratory levels have been completely refurbished. The flat roofs have been redesigned and landscaped over an area of approximately 8,000 m². On the walkways and rooftops, technical equipment is concealed by metal screens.

The majority of the work focused on rehabilitating façades and outdoor spaces.

Interventions inside the renovated buildings were kept to a strict minimum: renovation of sanitary facilities, installation of mechanical double-flow ventilation and fume hood compensation systems, large-scale refurbishment of corridor suspended ceilings, and interior insulation of certain gable walls. Safety and accessibility compliance work was carried out at various levels (stairs, fire detection, ramps and signage, guardrails and handrails).

This complete refurbishment results in a 40% reduction in heat energy consumption.

We carried out a detailed site analysis by identifying naturally created pedestrian paths in order to propose smooth walkways and preserve existing vegetation. The team worked on the landscape redesign to offer students and researchers a pleasant meeting and exchange space.

This redevelopment creates a cool island to refresh the campus in summer. Special attention was given to implementing rainwater management structures as part of a 'zero-network' policy, thanks to a source-control strategy and alternative techniques based on infiltration (retention/infiltration basins were installed).