In an environment rich in protected buildings, the project creates a very original architectural signature in the heart of an urban block thanks to its Ductal® concrete double skin, which is an echo of the adjacent protected open space (EVP) garden. This building offers a response that goes beyond the exterior architecture and technical experimentation. It focuses on creating a positive social and medical environment for elderly people with Alzheimer’s. This arrangement is unique in Paris and its development sheds new light on the management of residents with this disease in the context of a major renovation.