The project is located in Previ, Lima, Peru, a progressive experimental housing neighborhood. The evolution since the 1960s has been truly uncontrolled, where self-construction has given rise to a heterogeneous and unequal image of the neighborhood with various structural security problems. After an investigation about the roof of these houses, wasted and abandoned spaces, I seek to propose an alternative that solves all these problems, endowing this upper stratum of life and both private and communal uses. To prevent possible structural problems, a controlled growth mechanism is proposed through a system of telescopic pillars with predefined roof structures that allow a safe and controlled extension when desired. In turn, the project is divided into different levels according to a degree of privacy in each of them, from level 0 (pre-existence) which is the most private level, to levels 1 and 2, destined to the densification of private space and the transfer to the community of rest areas and complementary production spaces of level 3, intended for the planting of vegetable patchs and corresponding to the most public part, where all platforms at the same level belonging to different houses are connected by walkways, generating the “co-huerting” community. All the proposed rooms seek a cooperation and combination between them, in this way the climatic conditions of certain rest spaces are used in favor of some plants and vice versa.