Environmental issues in urban areas have been increasingly discussed in the construction of smart and sustainable cities. Thus, public green spaces have become the focus of studies for bringing several contributions to the urban environment, as well as provide many ecosystem services. However, it is important to know how users of these green spaces perceive the environment around them, especially in the context of creating new parks in areas with intense human settlements. The aim of this study was to investigate the ecological knowledge of residents surrounding an urban green area in the east zone of São Paulo city, which became municipal park after the end of this study. The Municipal Park Jardim da Conquista (PMJC) is located in an area considered one of the largest human settlements in Brazil and the world. 675 interviews were carried out with people living around the urban park in 2013. The profile of the supposed goers varies between 20 and 30 years, belonging predominantly to C economic class and also with sporadic profile of visiting the park. The interviewed people related these green spaces with leisure and biodiversity conservation. In addition, residents attribute part of the care and preservation of the park to themselves. This work highlights the user profile of a new park in the city of São Paulo, as well as their knowledge of some ecological aspects of an urban park.