Avaliação pós-ocupação do espaço Lar Verde Lar certificada leed: análise da eficiência dos critérios de projeto e sistemas construtivos

Abstract

This study evaluates the actual performance of Espaço Lar Verde Lar, a 189 m² commercial building located in Governador Valadares, Minas Gerais, and recognized as the first Brazilian building to obtain LEED v4 Gold certification. The research adopts a qualitative and descriptive approach, taking the form of a case study based on document analysis, supplemented by an on-site technical visit and a semi-structured interview with the person responsible for the building’s operation. The results reveal a mixed pattern of performance over the nine years of operation. The energy systems demonstrated resilience and durability, with consumption significantly below that of the conventional reference model and photovoltaic generation that exceeded demand throughout the entire first year, leading to the attainment of GBC Energy Zero certification. The rainwater harvesting system also remained operational, contributing to a reduction in internal water consumption. In contrast, the green roof was gradually decommissioned due to the plant species’ difficulty adapting to the local climate, and rising temperatures beginning in 2025 required the installation of air conditioning to supplement the passive system—an adaptation made possible by provisions already incorporated into the original design. The study demonstrates that certified sustainable buildings are viable in small and medium-sized cities, provided they are supported by committed management and systematic monitoring throughout their life cycle.