GREEN ROOM An architectural and urban device for energy efficiency and environmental comfort.

The article presents a design experiment conducted within the research PNRR VITALITYbased on the issues of sustainability and the quality of living spaces. Considering the inno-vation opportunities expressed by the energy transition, also achieved through nature-based regenerative solutions, aimed at reducing consumption and CO2 emissions, themethodology leads to the conceptualisation of the multiscalar spatial device Green Room:a volumetric decrement action associated with vegetative infiltration applied to significantparts of buildings and open spaces in three sample areas of the Adriatic-Mediterranean re-gion. Starting from morphological, typological, and climatic data and managing computa-tional simulation processes, the experiment aims to update design tools at the architecturaland urban scale, establishing a relationship between indoor and outdoor spaces to achievebenefits for the environment and people’s well-being.