This article provides an answer to the main arguments of the conference "The vice of the virtue", by Francisco de Oliveira, published in issue 74 of this journal. Against the argument that collaborative building should neither be stimulated nor be transformed into public policy, for it depends on unemployed workers and does not contribute to create a real-estate market, it states that the worker involved in the process of collaborative building is the owner of a propriety that can be subject, if necessary, to market circulation.
collaborative building; self-construction; Francisco de Oliveira; habitation