The programme includes a block of 12 flats and 5 maisonettes in Paris 18e district (Barbès Metro Station). The project initiates environmental technologies in order to improve the residents' quality of life: preservation of privacy from view of the elevated metro line, acoustic comfort, solar protection. The light is diffused towards the inside of the flats, via the reflective internal surface of the solar thermal collectors.
This energy-efficient façade - atypical within a protected area of listed monuments - supplies 44% of hot water needs. The façade comes to life with the weather conditions: the sun's rays make the solar thermal collectors shine and project their shadows onto the inside of the balconies.
The play of transparency in the hall, the views from the landings over the flower garden and the location of the bicycle storage area in the middle of the project make for creating relations between the residents in the block of flats and those in the maisonettes.
The 15th of June 2010, the Mayor of Paris attended an official press visit of the building in order to illustrate his campaign of struggle against unhealthy housing.