Architectural Transformation Strategies from a Vertical Slum into a Nearly Zero-Energy Hybrid Building. A Study Case in Malaga (Spain)

The transformation of a vertical slum into a hybrid building in socially excluded neighbourhoods, represents a scarcely analysed approach for a building model traditionally developed outside of these areas. Furthermore, incorporating these buildings into comprehensive urban regeneration processes in large peripheral neighbourhoods can address deficiencies in infrastructure and amenities. This paper presents and analyses strategies for the physical, energy, and social transformation that aid in the regeneration of a socially excluded neighbourhood, applied to a real case study in the city of Málaga (Spain). The methodology proposes an integrated approach from the urban, architectural, and social dimensions, organised into three phases: analysis and needs, hybrid transformation, and transformation strategies. Twelve transformation strategies were found to be structured into three categories: spatial, energy improvement and new uses strategies. Spatial strategies include incorporating new semi-public spaces and reclaiming public and community spaces, distinguished either architecturally or functionally derived from new public uses. Energy transformation focuses on enhancing and incorporating passive systems, active energy input systems, and transforming the existing facade. Finally, use strategies suggest new public uses for the neighbourhood, the distribution of uses based on height, and the relationship between new uses and plazas at height.