Cities with their vast building stock and infrastructure play a key role in reaching European energy efficiency targets. With approximately 75% of the EU population living in cities and urban areas, they account for large amounts of the current energy consumption and represent crucial spaces where the energy transition must take place.

Transforming the existing urban structures provides great energy efficiency potential. Yet, the transition towards low-emission cities is often hampered by sectoral fragmentation and lack of cooperation between public authorities, energy utilities and property owners. AREA 21 addresses these challenges and supports cities in the Baltic Sea Region to harness the full energy savings potential of existing structures, to elaborate holistic strategies that integrate sector-based approaches, and to engage energy consumers in strategic energy planning.