Urban improvement is currently being considered as a new mechanism for improving the quality of life and the urban environment in residential areas as well as in the city as a whole. The process of intervention to improve the living environment is not necessarily to fight against the deterioration that can affect buildings and structures, but the improvement can be the result of those changes that affect the characteristics of society and the cultures of the population over time and through the succession of generations. We carry out the process of improvement each time with the aim of keeping pace with these changes and adapting the living environment to the new data or the new generation.Through this study, we aim to identify the impact of the urban improvement through the intervention on the city of Tebessa. Like Algerian cities, this city has experienced a deterioration of its urban fabric, which appears in the poor state of the buildings and the deterioration of the infrastructure, its inefficiency and overload, leading to a growing imbalance in the urban environment, and the resulting change in the urban characteristics of these areas, negatively affecting the social and economic characteristics of the population.