Ventilla in San Cosme. From the Neighborhoods in Remodeling of Madrid to the informal neighborhoods of Lima

A study is proposed on two types of planned and emerging strategy (“top-down” and “bottom-up”) developed in two important moments in the problem of informality in Lima and Madrid. As a methodology, a comparative analysis of case studies is proposed as development models; San Cosme in Lima, a consolidated emerging growth neighborhood located in the center of Lima, a product of mass migration from the interior of the country to the Peruvian capital. The second model is the intervention of Ventilla-Valdeacederas in Madrid, within the framework of the Neighborhoods in Remodeling Program of 1986, a proposal for physical action developed with “urban acupuncture” mechanisms as a solution system to the problem of urban informality in consolidated areas. . The objective of the analysis is to hypothesize a solution for informal settlements using the action strategies of Ventilla-Valdeacederas. In that sense, it is proposed to reveal the operating systems in both realities, presenting San Cosme as a settlement with a representative configuration in Latin America, and Ventilla as a model of regenerative action of possible success on this type of settlements. As a result, reflections are proposed by identifying improvements in San Cosme, as a model of action on other contexts in the global south.