How public authorities can affect how rooftops get utilised?
Cities across Europe are facing growing and overlapping challenges: rising temperatures, heavier rainfall, pressure on public space, increasing energy demands and shortages of green and social facilities. At the same time, a vast amount of unused space already exists above our heads. Rooftops cover enormous areas within city boundaries, yet most of them remain underused. The MultiRoofs project brings together six European cities and regions to explore how public authorities can unlock this potential and use rooftops as active contributors to climate resilience, energy transition, biodiversity restoration and community wellbeing.
This report (Deliverable 1.2.5) lays the foundation for a shared strategy. It introduces a common method that helps cities understand what is needed in different districts, what is technically possible on different buildings and what building owners are likely to want or accept.
The infographic below provides a visual summary of the report. It outlines the urban challenges addressed by the MultiRoofs project, the different categories of rooftop owners and stakeholders involved, and the methodology developed to identify and assess rooftop opportunities. It also illustrates how stakeholder preferences, technical capacities and local urban needs can be combined within a digital tool to support decision-making and explore multifunctional rooftop solutions. Finally, it presents the main rooftop functions considered within the project and the next steps towards testing, validation and transnational replication.
