OPUS – La Défense

Join the app OPUS – La Défense and enjoy many services directly from your mobile.




Opus12 is a simple, practical & secure application to stay informed and communicate within a building.





The application allows you to :
- follow what's happening at Opus12 in real-time, with your building's news
- to chat with other building's occupants via messenger or a forum
- benefit from services to simplify your daily life: concierge services, reservation of common areas or goods and all other third-party services integrated into the app.