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The discussion on producing urban peripheries in Chile has focused on the capital. An understanding of this process is proposed for San Pedro de la Paz, a city in the Metropolitan Area of Concepción in the country's south. The hypothesis is that housing policy has been the most relevant actor in producing peripheral urbanisms. It is a territory where center-periphery relations are hybrid and strongly influenced by the relationship built with the landscape and nature. The methodology combined geographical analysis of land cover and use, documentary and normative analysis, and observation of different social housing complexes built at different times. The results show how the territory has historically been shaped as a peripheral and suburban area, which is consolidated by the action of the State, producing a diffuse space dominated by the values promoted by the middle classes. [ABSTRACT FROM AUTHOR]

The study of the growth of large cities, in the urban periphery or the peri-urban areas specifically, it relates to environmental degradation due to urbanization, if it is estimated that since 2008 more than half of the world population living in urban areas, this sector is affected as it presents overcrowding, segregation and deterioration of physical conditions, which will impact on the social aspects within localities. This great urban growth has usually developed with the lack of environmental planning. So it is necessary to include urban development, guidelines towards environmental conservation and rehabilitation of the territory. The future of cities will depend largely on the actions taken now. As urban development inevitably requires planning urban settlements through sustainable development so as to provide alternative technologies, based on the reality of Latin American countries. In the peripheral area of the Metropolitan Zone of Guadalajara (Mexico), is taken as a case study of the town of La Venta del Astillero, which by its nature allows access and functionality to develop a set of criteria and indicators to urban sustainability, which can take as a model for other communities in the urban periphery. [ABSTRACT FROM AUTHOR]