This paper investigates the problems and stresses of the contemporary city, mainly due to natural and health factors, related to climate change and the pandemic COVID19. Besides highlighting the characteristics of climate change and the ongoing pandemic, this study focuses on the analysis of the main effects and consequences that these phenomena have produced on the city and the vulnerabilities of the urban system. To understand how these events have impacted the urban environment, directly and indirectly, this research undertakes to define some specific indicators capable of comparing the phenomena and assessing their repercussions. The Methodology is based on the following focal points: on the analysis of the urban shocks that have affected the cities in the last decade, on the comparison between contemporary survey data and those relating to historical trends, on the definition of the main urban sectors particularly affected by the onset of urban shocks, and on the definition of strategies, actions, and tools deemed to be effective in the implementation of a post-pandemic and climate-proof city. These results were achieved through complementary urban design and tools capable of creating a post-pandemic and climate-proof adaptive city, within a cross-disciplinary approach.

Previous studies have investigated how resilience can play a pivotal role in strategic urban design in the Netherlands and in some regional and municipal planning laws in Italy. Here, we have analysed several European projects that utilised the resilience approach successfully. Dutch policies already include resilience and climate adaptation in urban strategies. Moreover, they share those strategies with urban communities, making the innovation of the city real and cutting-edge. In Italy, on the other hand, the concept of resilience is present only in some regional laws and is still not used as an urban tool. In this paper, we aim to demonstrate how resilience can become the new paradigm of smart planning. Furthermore, we demonstrate how resilience is fundamental at all levels of urban intervention, involving municipal authorities, architects and urban planners, firms and enterprises, citizens and communities. The urban governance must establish specific goals and objectives to create a smart and sustainable city. Resilience should be one of these main aims, in order to achieve an innovative city design. A climate strategy should also be part of urban smart planning, enabling the implementation of a safer and resilient city.

The manuscript wants to investigate the debate on urban resilience and climate change linking theory and practice, describing the possible innovations that concern urban design, urban normative and regional laws developing in different countries. The approach pursued would encourage resilience and flood protection through smart planning and through the architectural and urban project; considering public space as strategic soil where developing the resilient city, using engineering technical climate defence as new space for citizens and communities. Resilience themes are included in all levels of government and in spatial and strategic development policies such as in some project concerning public and private space and in municipal plans; the urban defense structures has to become new pleasant space for the city; these actions will not only contribute to making cities more resilient but will contribute to the creation of a more pleasant and attractive urban environment. The Resilience is the main keyword of some strategic vision of the Netherlands and of Italian laws and the concept is tested in some best practice such as in Rotterdam, in Bordeaux, in London and in the research carried out by "Arquitectos de Cabecera" in Barcelona. Resilience is seen as a new paradigm of smart planning.

The European Commission has adopted the European Adaptation Strategy with the obligation for all the Member States to implement national plans to cope with the inevitable Climate Change impacts by 2017. Creating a waterproof city requires intensive cooperation, public awareness and citizens involvement. The issues are very topical because of the recent increase in extreme events related to climate change: heavy rains, tornadoes, water scarcity, drought. In recent years, there have been phenomena due to climate change, with temperatures and precipitations that have significant values of interest not in the conformation of the average value, but especially in the maximum seasonal and daily peak intensity. The methodology provides the study of some case studies that have been characterized by the experimentation of policies and strategies for successful adaptation and mitigation of hydraulic risks, in particular with regard to the preparation of climate adaptation strategies that have been tested successfully in some cities like Copenhagen, Rotterdam, Vancouver...The main goals and results of the research are related to the replicability of the analyzed best practices, with the aim of providing the municipalities of Southern Italy, and in particular of the Calabrian and Sicilian areas, with the appropriate tools and strategies to create waterproof cities with the full involvement of the settled communities.