This article aims to analyze, through a systematic literature review of the last five years, the causes of urban floods in Brazil and the associated planning failures, proposing solutions based on green infrastructure and sustainable drainage systems. The method consisted of searching and selecting scientific articles published between 2020 and 2025 in recognized databases, focusing on the intersection between urban drainage, territorial planning, and climate resilience. The results demonstrate that excessive soil sealing and exclusive reliance on traditional gray infrastructures are the main factors exacerbating floods in Brazilian cities, highlighting a disconnection between urban growth and hydrological support capacity. It is concluded that the transition to resilient city models requires the urgent adoption of green infrastructures, such as constructed wetlands and sustainable drainage systems, which not only mitigate the impacts of floods but also promote the reintegration of the natural water cycle into the urban environment.