Situated in the iconic Lyon Confluence neighborhood, the “Hikari” mixed development project is composed of three new buildings with:

  • Shops (1,064 m² net surface area)
  • Offices (7,851 m²)
  • Housing (4,163 m²)


The project is part of the urban plan for the area designed by Herzog and Meuron.





Key figures

Period of services

Key challenges

This positive energy building complex includes:

A photovoltaic installation on the roof and the facade
Cogeneration with rapeseed oil
The offices have a dual-flow ventilation system with recovery and assisted natural ventilation at night to counter overheating and limit the use of air conditioning. Significant attention has been paid to the comfort of occupants; e.g. through the careful use of natural lighting.