Mega-events generate changes with regard to social, urban and economical aspects. In the city of Natal (in Brazilian Northeast) these changes are characterized mainly by the building of Arena das Dunas stadium, by urban mobility interventions, and investment in hostelry/tourism industry. These changes may influence the relationship between people and their surroundings, in existent bonds and memories related to places, justifying studies on psychosocial processes that may be triggered by such changes. Accordingly, this exploratory research aimed to investigate the residents perceptions about changes attributed to World Cup, during and after the mega-event. 214 participants (mean 35 years old, range 15-74, 47% female, 85% with degree of instruction between moderate and high) answered a questionnaire developed for the research. Categories derived from the literature which depicts the main impacted areas were analyzed, namely: public safety, city's overall appearance (aesthetics), health services, transportation services, employment, tourism, leisure facilities, urban cleaning, city image and traffic. A Likert scale of 5 points was used, evaluating changes ranging from very negative (-2) to very positive (+2), and a midpoint representing the neutral perception of change (0). For data analysis it was used univariate and bivariate nonparametric statistics. As results, on the temporal aspect (during and after the World Cup), it was observed a significant difference in impact assessments among different categories (p < 0.001). As expected, the changes were better evaluated on tourism, employment and image of the city, which received higher averages. On the other hand, changes after the World Cup were evaluated more negatively, and basic services (health, safety and traffic) received the lowest means. It is noteworthy that traffic had negative evaluation both during and after the event, which may be related to the fact that it is a point of debate and criticism quite conveyed by the media, also it is one of the biggest current challenges in large urban centers of the country. The positioning in favor or in opposition on the realization of the mega-event in the city was associated with perception of changes, something also expected. Favorable people had more positive opinions about the changes, both during and after the Cup compared with opposite group. Considering the educational level, participants highly educated seems to evaluate impacts of World Cup both during and after the event more negatively than those with low education. Another point was the positive association between liking football and public safety, transportation and recreation evaluations during the Cup and safety, aesthetics and urban cleaning services after the event. We highlight in this study the more critical view on the mega-event and changes by residents with higher education and access to information, besides the positive evaluation of the economically meaningful categories, as employment and tourism during the World cup. These aspects will be explored at a later stage of the research. It is expected from the achievement of objectives to shed light on psychosocial processes present in the person-environment related to changes in the urban landscape due to events of this proportion.