Abstract：As the urban transformation enters the new era, the truly upgrade of the living environment in existing residential areas has become a main task. Differing from the comprehensive renovation of the outer environment in the old residential areas in common, this paper focuses on the improvement of the functions and qualities of the inner space of the residential units as the breakthrough points. By taking the population relief in the old residential areas and increasing the floor area per unit and per capita thus, this paper, promoting the residents' awareness of autonomously collaborate renewal,
constructs a new path for the independent regeneration of the old residential buildings. Meanwhile, it clarifies the responsibilities of all parties and explores the long-term mechanism for the resident autonomous management as well as building permit regulations of the old residential areas.