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The lack of land ownership databases in developing countries has influenced inhabitants of these countries to occupy public lands. This situation has resulted in areas of informal housing, commerce, and agriculture, ultimately creating new informal settlements, which are becoming a serious problem in developing countries. These informal settlements contain inhabitants settled on public land without any infrastructure and against the landowner’s wishes. This process results in uncontrolled land occupation that promotes new informal areas without any proper urban utilities, positioned in risky areas, where the minimum requirements for healthy living are not being met. In some cases, this incentivizes an informal economy. Building a cadastral map in informal settlement areas is fundamental to supporting the future transformation of illegal areas, and in regulating the occupation of new subdivisions and new expansion areas. In this paper, we present a methodology developed to support the management of informal settlement areas. The method we used has the potential for replication so that it can be adapted to multiple types of informal settlements, as can the model used to register the land tenure. The model was developed using a series of qualitative and quantitative data that determine the identification and classification of buildings, along with a physical and functional description. A Geographic Information System, an initial survey of existing land titles of possession, and public proposals to develop new expansion areas were used to develop the model. A case study is presented where the land management model was implemented in Chã da Caldeiras in Ilha do Fogo, which is an informal settlement in Cape Verde. The proposal created using the results was accepted by the population and local authorities.
