The challenges inherent to urbanisation, such as the densification of peripheral locations, promote precarious urban scenarios with several deficiencies in infrastructure and habitability, where neighbourhoods are formed without planning guidelines as in the vast majority of Brazilian cities. Given this scenario, how can these neighbourhoods become more sustainable? While cities strive to achieve the Sustainable Development Goals of the UN 2030 Agenda, some issues are not often discussed at the local level or with community participation. The objective of this study is to present and analyse the opinion of citizens regarding urban sustainability issues, focusing on a neighbourhood level. Exploratory descriptive research was developed, contemplating 42 questions based on assessment tools were presented to participants in order to determine their degree of agreement or disagreement with each statement using a five-point Likert scale. The dataset was subjected to principal component analysis to verify which indicators contribute most to sustainability from the perspective of the community. The results demonstrate synergy between observed urban problems and positive opinions of respondents, with emphasis on urban infrastructure, social well-being, education, security and urban space. The arguments extracted from this research aim to inform the development of an evaluation structure for existing peripheral neighbourhoods, applied to medium-sized cities in southern Brazil, based on the opinions of residents.

城市化所固有的挑战，例如周边地区的密集化，促进了不稳定的城市场景，在基础设施和宜居性方面存在一些缺陷，在巴西绝大多数城市中，社区的形成没有规划指导方针。鉴于这种情况，这些社区如何变得更加可持续？在城市努力实现联合国 2030 年议程的可持续发展目标的同时，有些问题经常没有在地方层面或社区参与讨论。本研究的目的是展示和分析市民对城市可持续性问题的看法，重点是社区层面。开发了探索性描述性研究，基于评估工具考虑 42 个问题被呈现给参与者，以便使用五点李克特量表确定他们对每个陈述的同意或不同意程度。数据集进行了主成分分析，以从社区的角度验证哪些指标对可持续性的贡献最大。结果表明观察到的城市问题与受访者的积极意见之间存在协同作用，重点是城市基础设施、社会福利、教育、安全和城市空间。从这项研究中提取的论点旨在根据居民的意见，为适用于巴西南部中等城市的现有周边社区的评估结构的发展提供信息。