Análise comparativa da viabilidade de garagens subsolo e sobresolo de edifícios residenciais com base no método CUB

Abstract

This study analyzes the costs and feasibility of three garage subsystems in residential buildings in São Carlos - SP: basement, ground floor and basement. The research uses the Basic Unit Cost (CUB) as a reference, evaluating the financial impacts of excavation, containment and reduction of useful area, as well as the regulatory and structural requirements of each alternative. The single-story garage demonstrated the best financial balance, eliminating high initial costs and providing faster payback. On the other hand, the underground garage offers better use of space and increases the value of the project. An underground garage can limit the construction area and impact the size of the building, altering its viability in certain urban contexts. The choice of the ideal subsystem depends on factors such as municipal regulations, urban restrictions and economic strategies of the project. Therefore, the decision between reduced initial cost, maximum use of the land or constructive flexibility must be evaluated depending on the specificities of each project.