Globalization in the economic, cultural and technological arenas, coupled with increasing ecological and environmental concerns relating to human habitat, has gradually led to a reformulation of the paradigms incorporated into urban planning. The concept of sustainability has been introduced as an alternative in the way of thinking and planning the built environment. Though this concept has been associated with different definitions and values, it essentially recognizes the interdependency and insolubility of the social, economic and environmental dimensions of human settlements. However, it also seems necessary to attach a dimension of cultural and local identity to these aforementioned principles of sustainability. Thus, sustainability in this research isn’t comprehended as a planning variable, but rather a parameter for defining weights and values for several factors involved, acting as a framework for appraising boundaries between the contradictory interests of economic, social, cultural and environmental features. Planning guidelines were proposed for a fishing village in Southern Brazil using ecological and cultural variables as the basis for an environmental requalification. The village is located in a rural area and has no master plan or any kind of urban controls. Hence the existing urban form is the spontaneous result of the interaction among the individual interests of the human agents present in urban space. The village presents an accelerated process of loss in local character and degradation of its cultural and natural environments. The planning guidelines elaborated are based on a multidimensional analysis of the dynamic processes involved in the production and transformation of urban space and seek an integrated solution involving the several significant factors for re-qualification of urban environments and their surroundings. The development plan makes use of morphological and spatial variables (representative of economic and social urban processes) together with ecological, cultural and aesthetic variables. Typo-morphological and configurational analyses of urban space indicated a possibility to manipulate the spatial attractiveness of urban areas. Alterations in the spatial integration of the urban grid together with carefully chosen areas of expansion were determined to be important elements in directing the tendency of urban densification and expansion processes. These changes were proposed to adjust conflicts between urban and natural environments. Thus, it was possible to maintain continuity in the natural ecosystems without breaking the interconnectivity of urban areas. The interconnections of natural ecosystems were kept intact by the reduced width of the urban environment, by ecopaths formed by urban vegetation and by a change in urban growth directions induced by an increase in the attractiveness of more central areas. The landscape aesthetics were defined by a visual integration between the urban and natural environments. Panoramic views were analyzed for their textures, element scales, plan overlapping and the relations among visual elements. A chromatic analysis determined color palettes for the natural environment and also for the cultural preferences expressed in the urban environment by the architectural heritage, personal artifacts and the fishing boats. Additional studies were carried out to define the supporting chromatic characteristics of the natural environment. As a result, chromatic guidelines were created to visually integrate common buildings with the surrounding landscape and to define the visual emphasis for important landmarks. The use of multiple methods in urban planning allows for a better spatial and visual connection between the natural and urban environments. The respect for physical support and aesthetical capacities of natural resources, together with the preservation of local cultural identity seem to improve results in environmental quality and sustainability.