This paper addresses the reality of slum housing and its characteristics, drawing on an analytical field study, where it focused on the city of Tebessa. The study showed that about 57% of the messy residences in the city are of the same type of steel that can be settled according to the construction laws in effect. It also showed that the majority of slum dwellers are rural immigrants who live in fragile conditions. In light of these circumstances, the state’s intervention to address this situation came through Law No. 15-08 related to matching buildings and / or completing their completion issued on July 20, 2008. However, the latter witnessed many obstacles and difficulties that prevented the achievement of its goals despite the passage of a full decade since the launch of its application, as the proportion of chaotic housing that was treated in the city did not exceed 28.59%. All of this was mainly due to the reluctance of the population to engage in it in light of the great weakness of the media and oversight role of government authorities, which prompted us urgently to search for viable solutions to this problem in order to achieve sustainable urban development.