The present essay consists in the post-occupation evaluation of the Edson Luiz municipal day-care center, located in a region with a low income population, at the city of Rio de Janeiro. The objective here is to present the main results achieved in this evaluation, in which were prioritized methods centered in the environment perception of the users, such as walkthroughs, semi structured interviews, wish poem and visual mapping. The methods were applied at an approach called Embodied Observation, based on the works of Varela, Thompson and Rosch (2003), Maturana (2001) and Alcântara and Rheingantz (2007). In this approach, one means to value the human being experience in relation with the environment, rescuing sensations, impressions and the researcher’s background as well as the background of the people who deeply live the place. It was found that the main space limitations of the studied construction where related to its poor flexibility to adaptations and its urban insertion in a narrow terrain, that does not give support to outdoor activities, as well as doesn´t allow any enlargement. In this way, the adequacy of the construction to the new demands, derived during its uses, becomes difficult. It was verified that these problems are related to the difficulty in effectively carrying out the urban and architectural planning in the public constructions, regarding that the proposals developed in this ambit area are, on its majority, for short term executions. For this reason the possibilities of to accomplish improvements are restricted, reflecting a context where the planning politic is still consolidating and in which the study of the relations between the people and the environment can bring significant contributions.