OID (Green Building Observatory) is an independant space for exchanges between actors of the real estate industry, on sustainable development and innovation. Our purpose is to imagine responsible real estate. OID gathers fifty members and partners, among them the leaders of commercial real estate in France over the whole value chain. Independent from private and public interests, OID is an association and contributes to the rise of ESG topics in France and abroad, through an action program in the field and towards the public sector.