Since the European Year of Cultural Heritage, adaptive reuse is considered a strategy for intervention on historical buildings and territories to preserve and enhance artifacts, cities, and communities. Adaptive reuse can also generate social and economic benefits. This work looks at adaptive reuse in the context of industrial heritage, which represents an excellent test benchmark because of its intrinsic architectural characteristics and its localization in the city suburbs. The paper puts forward a methodological approach, verified through the application to a case study, which analyzes both the local context and the building. This study concludes using the data obtained to define an adaptive reuse project with positive repercussions for the community, the environment, and the local economy.

The conscious and efficient reuse of historic buildings has turned out to be a fundamental point of European programs for the management and conservation of the Architectural Heritage. In this context, the Industrial Heritage shows architectural and spatial peculiarities that facilitate its change of use and performance updating. In fact, the large internal spaces limit the issue of material compatibility to retrofit interventions on the casing. Often the interventions of reuse of the industrial heritage are solved with new architectures designed to be completely inserted inside the original envelope, remaining independent from it. This work presents the reuse project of an industrial building in the city of Sagunto, Spain, where the logic of the “box within the box” is re-proposed with the aim of spatial and constructive flexibility. The research shows a design methodology that allows the new functional modules inside the old building to be designed according to flexibility requirements and how flexibility design is a means for environmental sustainability in the occasion of disused industrial heritage reuse.

Heritage rehabilitation can be a sustainable operation when it succeeds in conveying the intangible, historical, artistic, and symbolic value of the building and, at the same time, to ensure the preservation of soil and material resources. The sustainability of the operation must cover the entire life cycle of the building, starting with the management of materials on the construction site, which allows for an increase in its durability while safeguarding its residual performance. This paper, therefore, outlines a process for the sustainable management of materials at the building redevelopment site using the history of the building and the life cycles of related materials. In particular, the following are explored: residual performance of historical and coeval materials, their endogenous and exogenous reuse of materials in the redevelopment project, the traceability aimed at controlling the supply chain, and the material/component identity card. The latter evolves dynamically, providing useful information for carrying out environmental assessments and monitoring the building’s maintenance cycle. The process is applied to a case study involving the redevelopment of the historical built heritage following the 2009 earthquake that struck the city of L’Aquila and neighbouring territories. The case study demonstrated the validity of the method and at the same time made it possible to introduce an innovative process in the territory, raising awareness among those working in the sector of the value of choices that have environmental and economic advantages.

In Zambia, Western materials, techniques, and technologies, a symbol of emancipation, are replacing the local building culture, which is relegated to the poor sections of society, with a negative impact from an environmental, social, and economic point of view. Designing and building sustainable architecture in developing countries is a particularly complex task mainly because of the absence of scientifically codified information about vernacular architecture and available resources. The starting point for designing and building sustainable architecture is to know the territory and its resources. The research outlines the harvest map of sustainable resources in Lusaka’s geographic surroundings, created through site surveys and analysis of international databases. The method for creating a harvest map follows well-defined steps involving knowledge of climate, intangible resources, and material resources as described below. Knowledge of the climate is intended to enable a critical reading of the area’s resources; it is functional to understand the logic of traditional architecture and consequently to identify fields of innovation in it. Intangible resources are related to the building culture and techniques and technologies of vernacular architecture of the territory; material resources, on the other hand, are related to traditionally used materials, raw materials not yet exploited, but potentially usable and waste materials. The vernacular architecture of the Lusaka territory is based on low-tech systems and natural materials (mainly raw earth, plant fibers, wood, and bamboo). There are also tree species in the territory that, for their quantity and performance, could be used in the construction field, as well as waste materials from common use or from the agricultural supply chain. Starting from this harvest map, every designer has the knowledge of the area from which to use already known building systems related to the resources of the area or innovate them while respecting local culture and resources.

The construction sector has a high environmental impact, especially due to C&D waste. At the same time, the increase in the temperature of the Earth’s surface due to pollution requires interventions on the built environment, aimed at improving the performance of the envelope in hot climates. In the literature, there are studies on components to increase thermal efficiency, but they are limited by long or expensive production processes or high environmental impact. This research considers Italy as a reference area. The aim of this research is to design, prototype, and verify a sustainable component to be included in the stratigraphy of light mass vertical closures to increase their heat capacity that allows for the reuse of C&D waste and the optimization of site operations both in the selective demolition phase and in the redevelopment phase of the building. The method follows the following phases: analysis of the type of waste from C&D, analysis of international best practices, analysis of the possibilities of intervention on vertical closures according to the pre-existing structure and choice of cases of greatest scientific interest, design of the sustainable big bag by reusing inert materials from selective demolition and recycled polypropylene fabrics, prototyping and verification by laboratory tests, and software analysis to verify the thermal advantage. The use of the sustainable big bag allows for construction advantages, facilitating site operations both in the construction and waste disposal phases, energy advantages by improving the heat capacity of the envelope, and increases in the sustainability of the intervention through the reuse of waste materials.

The reuse of wooden elements is a sustainable operation, which makes the best use of the material’s grey energy. Currently, structural timber from selective demolition is mainly used for non-structural functions, with a lowering of its performance, due to the lack of standard and specific regulation. In fact, the visual grading used to define the structural characteristics of wood does not evaluate information deriving from the previous life cycles of the component. In the paper, taking samples of rectangular timber elements from selective demolitions made in the Valencian Community, the structural values that are assigned by visual strength grading legislation were compared with the real resistance values identified by experimental analysis to verify their compliance. The verification showed that the visual grading is not able to optimize the performance of the timber element in its reuse. Therefore, the purpose of the research, illustrated in the paper, is to find a reuse process for structural wooden elements to enhance residual performances. The identified process introduces additional steps compared in the current visual grading, that include a consideration of the effective modalities of reuse evaluated according to the worst defects and information arising from previous life cycles.