From 2023 until 2025, the CCRI has supported 12 European cities and regions to test what it really takes to
turn circular economy ambition into practical, local and systemic solutions. Their examples in developing Circular Systemic Solutions (CSS) across various sectors and focus priorities form the foundation of this booklet.

This compilation brings together the insights and solutions developed through the CCRI Pilot programme between January 2023 and October 2025. It highlights not only what the Pilots achieved, but how they did it: the partnerships they built, the barriers they faced, the tools they used and developed and the lessons that can help others accelerate their own transitions.

Booklets present a consistent set of elements to inspire and assist replication:

• The challenge and context the Pilot aimed to address
• A clear description of the circular solution developed and tested
• Key facts and figures, showing baseline data and achieved impacts
• Progress through the CCRI Methodology (Map–Design–Implement)
• Stakeholders and governance models involved
• Results, impacts, and success stories
• Challenges and enablers, based on on-the-ground experience
• Actionable lessons and tips for replication

Before presenting the 12 individual solutions, this compilation provides:

• Key impacts across all Pilots at a glance, aggregating figures and insights
• A synthesis of common success factors, barriers and operational lessons, identifying patterns that emerged across geographies, themes and solution types.

Together, these elements offer a practical, evidence-based resource for cities and regions in various stages of identifying, designing and implementing their own circular solutions.