In increasingly denser urban environments, there is a new-found interest in underused spaces as opportunities for further development. Representing up to 25% of cities' land area, rooftops are among the most exciting spatial resources. From sustainable infrastructure and urban farming to social spaces and cultural venues, the article looks into the potential of creating a multi-layered city through the activation of urban rooftops.
There are several types of untapped spatial potential, from gaps within the urban fabric to residual public spaces. Still, an aerial view of any city center uncovers the roofscape as a significant underused surface. Searching beyond penthouses and private extensions, urban roofs have already entered the conversation surrounding both urban densification and climate resiliency. Moreover, as the pandemic underlined a severe need for more outdoor areas, rooftops are regarded as a viable addition to public space.
