Building and growing are two actions that should be considered more often than not at the same time. This is how the 2017 "Build to Grow" social housing competition, looked to establish bases that sustain a flexible way of living. The event took place in the Belén district in the city of Iquitos, on 3.7 hectares plot of land. The project that received first place proposed to locate 120 incremental homes, that alternatively allowed users to modify and expand it according to their needs and economic means. In short, a home with a solid nucleus formed by a structure that supports changing activities.