The segment of residential building rehabilitation has been growing slowly, due to both housing programs led by the government, and, in a much smaller scale, the private housing market. However, similarly to what has happened in many European countries, this activity is likely to increase over the years and will require expertise not yet available. The production process of a rehabilitation project is substantially different from that of new building, demanding the development of new parameters in technology, management and costs. Considering this context, the aim of this study is to propose guidelines for estimating costs of building rehabilitation projects for residential use. The study is based on a detailed study of the costs involved in the production of five housing rehabilitation projects carried out in São Paulo, for which detailed cost estimates and an ABC curves were prepared. Based on the cost analysis of the projects, a range of percentage shares of the production cost of subsystems in relation to total building rehabilitation costs was proposed.
Building rehabilitation; Production costs; Cost estimating; Social housing; Residential building projects
