The project exercise takes place in a context of collapsing resources. The industry is no longer able to provide raw materials for the construction of existing buildings and farming systems have become obsolete. The proposal is based on the ambition to create a producer agricultural village for Brussels and Pajottenland, in response to the state of emergency of the context. It is located in a triangular area of Pajjotenland well served by roads and railways. The trees are preserved and used as a natural reserve for timber construction. Warehouses, dwellings and greenhouses are also being preserved for conversion into storage facilities for locally produced food. Each parcel is assigned to a group of stakeholders who are committed to becoming agricultural producers. Each plot itself belongs to a district. And finally each district forms the triangle. The project uses the fruit wall system as the basis for production. The installation of these production walls strictly follows the parcel boundaries. This effectively allows the territory to be subdivided according to the land of each owner. This urban phenomenon is inspired by villages such as Montreuil (17th century - 450 Ha of production) or Thomery (18th century - 200 Ha of production) or even Hoeilaart in Belgium based on the greenhouse system. In more detail, the plot follows a homogeneous distribution between apples, pears and peaches. Existing greenhouses grow grapes. The use of the plot can be flexible and diversified in its production (tomatoes,...). The space between the walls can be reserved for more traditional agricultural use (potatoes, onions, wheat, etc.). The use of the wall as a support for production is explained by the phenomenon of thermal inertia which allows exotic fruit trees to be grown in a temperate Belgian climate. The history of the evolution of fruit walls shows that they are in fact the ancestor of the transparent greenhouses we know today. The choice of use of the massive wall may seem archaic, but the aim is to develop a possible urban planning in a catastrophic future with limited access to certain resources. Thus, the use of glass is limited. It is also necessary to consider the scenario over several decades: an area of this size will not be covered with producing walls in a single day. This is why the triangle is built around an excavation plant that will provide the groups of stakeholders with prefabricated fruit walls. Each plot depends on an existing warehouse and each of these is connected to the village square. It acts as an administrative centre, a platform for import-export trade. She became the head of the site. It is itself connected to a station. Two types of housing are developed: Project 1: the nursery The goal is to create a nursery that will provide the territory with young trees or other growth. The idea is to take advantage of the wall and place the house on one side and the greenhouse on the other side to heat the house. The greenhouse will store the heat during the day and transmit it to the wall, which will then release it at night. The living space is juxtaposed with a production space. Project 2: The packaging unit The aim is to participate directly in the production chain through a packaging unit. The concept of a threaded room, present in the urban planning of fruit walls, is used to organize housing and production. The next step is therefore the following: a living room, a buffer room that links housing and production and finally a packaging room (washing, sorting, brushing of harvested fruits). Details of the fruit wall: The constructive technique is similar to pisé: