Acquired by Left Bank in 2016, 42 rue René-Boulanger is a typical faubourien building in the 10th arrondissement of Paris. Its renovation, entrusted to the architectural firm Hame, includes the conversion of the building on the street and its two wings, with the installation of 1,100 m² of office and retail space, and the new construction of a building at the end of the plot, which will house a program of eight residential units developed over approximately 700 m².