[Re]Tectonics - Constructive Regeneration

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BACKGROUND The construction industry is a major contributor to global carbon emissions, generating significant material waste through demolition and redevelopment. While circular economy principles are increasingly discussed, most applications remain limited to recycling or efficiency optimisation within linear design workflows. Recent research has begun to reposition construction waste as a resource for spatial and tectonic innovation. However, a critical gap remains in developing design methodologies that integrate material reuse, structural logic, and fabrication processes within a coherent architectural framework. This project addresses this gap by investigating a material-first design approach, where discarded construction components drive form, structure, and assembly.

CONTRIBUTION ReTectonics is a commissioned design research project exhibited at the National Gallery of Victoria (NGV) in 2024, Melbourne, Australia, initiated and reviewed by the Australian Building and Property Association (ABPA). Led and designed by Dr Nic Bao, the project establishes an integrated design-to-construction workflow combining computational design thinking, material reuse strategies, and participatory fabrication. The installation is constructed entirely from salvaged building components sourced from local demolition sites—including timber joists, steel studs, plywood panels, and façade fragments—each retaining traces of prior use. The project adopts a reverse design logic, where form emerges from material availability and constraints rather than predefined geometry. A modular assembly system using low-tech, non-destructive connections (e.g., brackets, screws, cable ties) enables rapid construction, disassembly, and reconfiguration. Fabrication is carried out collaboratively with architecture students, positioning construction as a site of real-time design decision-making. The resulting full-scale installation (approximately 6.5m × 3m × 2.5m) forms a porous, layered spatial structure that operates as an architectural artefact, pedagogical platform, and material experiment.

SIGNIFICANCE The project was commissioned and exhibited at the National Gallery of Victoria (NGV), one of Australia’s leading cultural institutions, positioning the work within a prominent public and cultural context. Installed in the NGV foyer, it engaged a broad audience beyond academic and professional communities. By demonstrating how construction waste can be reassembled into a full-scale installation, the project advances research in post-carbon architecture, circular construction, and material-driven design. It challenges conventional linear workflows through a material-first and reversible assembly methodology, offering an alternative paradigm for sustainable architectural production. This work positions architecture as an active agent in addressing environmental challenges, demonstrating how material reuse, design intelligence, and collective fabrication can generate new spatial, cultural, and ecological value.