The Metropolitan Region of São Paulo has been presenting a scenario of high urbanization, with an increase of impermeable surfaces and verticalization to the detriment of green areas, especially urban afforestation. These scenarios contribute to the extremes of temperature and the presence of urban heat islands, especially in the more densely populated and built-up areas, where the temperature is higher than the surrounding areas that have vegetation, especially urban forestation, promoting ecosystem services such as temperature cooling. Thus, this work aimed to use Geographical Information Systems and Geodesign framework with the use of the GISColab platform, in order to study urban afforestation, as an urban forest in the study area and with specific examples, aiming at the city’s socio-environmental quality. Thus, the work aims to seek nature-based solutions, such as increasing urban afforestation, in order to promote socio-environmental quality for MRSP.