The following formal researches represents light shelters of simple execution which allow simply to protect bad weather. This work is rather empirical and the searches are the most of the time based on models. The objective is to set up a structure which shelters and protects the work of Jeannine Lejeune (a belgian artist recognized for her art-crude work) as well as the creation of a collective space allowing her to welcome children for example. The design of a small unit-house is also a part of the project.