Built in 1933, the apartment building at numbers 25-31 Avenue de Rumine was a remarkable large-scale real estate project for its time. Owing to the economic crisis, works on the complex were entrusted to a number of different architecture studios – René Bonnard, Grivel & de Freudenreich and Charles Thévenaz – each of which had their own clients. The layout of the exterior envelope was planned jointly by René Bonnard and Charles Thévenaz, to ensure overall uniformity. The interior layout, however, was left down to the architects.
Featuring seven levels, including a ground floor and two lofts, the building is composed of three U-shaped wings and a long façade (19 bays) on Avenue de Rumine. Loggias and closed and open porches punctuate the building in a style that plays on monotony; modernist architecture is meant to be ornamentation-free. The courtyard houses a crafts workshop and a garage.