Immeuble Clarté is an apartment building in Geneva designed by Le Corbusier and Pierre Jeanneret starting from 1928 and built in 1931-32. It has eight storeys and comprises 45 free plan units of diverse configurations and sizes.[2] It is one of Le Corbusier's key early projects in which he explored the principles of modernist architecture in apartment buildings, which later led to the Unité d'Habitation design principle.[3]