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This paper documents the design and fabrication process of modular responsivelighting installation. The design and research led to a modular and transformableurban lighting concept, combining unique material behaviour and cyber-physicalsystem. The main goal was to investigate how material characteristics,composition and performance could be programmed in order to generate a rangeof modular components. Modular tiles and joints combination designed ofsustainable materials - bioplastics and cork sheets - were created and usedtogether with number of sensors and micro-controllers. Furthermore, theinstallation concept links technical and psychological aspects that potentiallycould be used for the benefits of city dwellers. Paper consists of two parts. Firstpart is the introduction of a broader urban night lighting design context to whichthe project belongs. This includes covering existing social issues related to urbandarkness, as well as the need to increase biodiversity within built environment,through introducing new materials. The second part of the paper describes thedesign and fabrication process, that employs the conclusions discovered in thefirst part through set of material experimentations, design project and thereflections on the results.