As favelas constituem uma realidade consolidada na cidade de São Paulo. Apesar de carências infraestruturais, os interstícios urbanos de favela configuram potencialidades para promoção de vida urbana, coesão comunitária, mobilidade, lazer, geração de renda e conforto ambiental urbano e edilício. Isto posto, como fazer valer as oportunidades urbanas latentes dos interstícios e interfaces de favela? O objetivo é caracterizar e experimentar a requalificação ambiental, urbana e social do objeto de pesquisa, os interstícios e interfaces urbanos da Favela de Paraisópolis, a segunda maior de São Paulo. O Método é fundamentalmente empírico, com avaliação da situação existente, a partir de critérios pré-estabelecidos, seguida pela proposição de alternativas e estratégias para a apropriação dos interstícios e interfaces urbanos de favela, como efetivos espaços de convivência e vida urbanos. O desenho é ferramenta fundamental de investigação. A sobreposição de estratégias ambientais, urbanas e sociais, envolvendo diferentes escalas e agentes, com foco na reativação de espaços intersticiais e permeabilização do ambiente construído conduz à requalificação da favela, como organismo urbano a inspirar a reconstrução da própria cidade dita formal. / The favelas constitute a consolidated reality in the city of Sao Paulo. Despite the infrastructural lacks, the favela\'s urban interstices configure potentialities for promoting urban life, community cohesion, mobility, leisure, income generation, and environmental comfort, in urban and building scales. Thus, how to enforce the latent urban opportunities of the favelas\' urban interstices and interfaces? The objective is characterizing and experiencing the environmental, urban and social requalification of the research object, the urban interstices and interfaces of the Paraisópolis Favela, the second biggest one in Sao Paulo. The Method is fundamentally empiric, starting with the existing situation evaluation, from pre-established criteria, followed by the proposal of alternatives and strategies for the appropriation of the favela\'s urban interstices and interfaces as effective living spaces for urban life. Drawing is a fundamental investigation tool. The overlap of environmental, urban and social strategies, involving different scales and stakeholders, focusing in the reactivation of interstitial spaces and the permeabilization of the built environment leads to the favela\'s enhancement, as an urban organism to inspire the reconstruction of the formal city.

Bon nombre d’agglomérations s’engagent vers un urbanisme marqué par la notion de ville durable et par les thèmes de cadre de vie, de nature en ville, de mixité sociale et d’identité territoriale. Dans cette perspective, les entités urbaines, au site originel lié à l’eau, trouvent dans leurs milieux fluviaux et humides des terrains d’application et d’expérimentation idoines et y développent de vastes projets urbains que l’on se propose d’analyser par la notion de « requalification urbaine ». La diversité des politiques, perçue à travers l’étude des villes péri-franciliennes, en éclaire les manifestations concrètes, la diversité, mais aussi les travers éventuels.Mais, le caractère récent de la redécouverte de l’eau en ville, qui succède à une longue phase de dénigrement, requiert une approche géohistorique des liens entre la ville et ses milieux d’eau afin d’inscrire la démarche de requalification dans une politique patrimoniale pérenne qui privilégie l’idée de trajectoire paysagère. Il en ressort, par le biais de l’étude d’Amiens et d’Orléans, des configurations singulières entre le façonnement des milieux humides et l’histoire des cités.Les jeux d’acteurs, essentiellement publics, engagés dans la requalification urbaine des lieux d’eau, y seront également mis en évidence car les particularités fonctionnelles de ces zones humides bousculent les outils et procédures de gestion urbaine ainsi que les modes de gouvernance. Il s’agit dès lors de cerner la place des lieux d’eau dans les stratégies politiques urbaines, d’en décrire les traductions spatiales et d’en révéler le potentiel d’attractivité par le biais des campagnes de communication et d’animation. / Many agglomerations are engaged in sustainable urban policies, focusing on lifestyle, development of green space, social melting-pot and local identity. With these objectives in mind urban areas, originally built beside water, find ready-made sites in their catchment area rivers and wetlands to apply and experiment large projects. These will be studied under the name of “urban requalification”. The diversity in policy approach, evident amongst the greater metropolitan area of Paris, shows variability in the concrete manifestations and end results.The recent re-discovery of waterways in the city comes after many years of planners turning their back on it. Therefore a geohistorical approach to the links between the city and it’s wetlands is required. This will allow the urban requalification process to be integrated into a perennial heritage strategy which prioritises a focus on landscape. This study, of Amiens and Orleans situation, highlights the singular configuration between the landscaping of the wetland and the history of urban centres.The interaction between the different actors, essentially within the public sector sphere, engaged in urban requalification of wetlands will be examined. In fact, the specificity of wetlands functions obliges a reassessment of the tools and procedures of urban management as well as the various modes of governance. Consequently the place of water in urban strategy needs to be defined, the translation onsite described and the attractiveness potential through communication campaigns and public events outlined.