GreenDEMO is a Horizon Europe project that empowers city governments to become more effective, inclusive, and climate-ready.

From city halls to communities, the project supports local administrations in testing new ways of working, collaborating with residents, and building trust in how decisions are made.

Over three years, GreenDEMO will bring together cities across Europe to develop, share, and scale practical innovations for greener, more democratic governance. The project aims to: 

• Explore the evolving roles of public administrations in democratic green transitions.
• Map promising practices and governance innovations across Europe.
• Co-develop and test solutions in Demo Cities (Mannheim, Bristol, Aalborg).
• Support adaptation and scaling through Fellow Cities (Glasgow, Aarhus, Bamberg, Schaerbeek, Poznań).
• Build a Community of Practice to foster knowledge exchange, peer learning, and long-term collaboration.
• Provide actionable insights to improve public sector agility, accountability, and responsiveness to sustainability goals.

GreenDEMO brings together 8 European cities - each committed to driving local green deals and institutional innovation.

Demo Cities like Mannheim, Bristol, and Aalborg will design and test new governance models. Fellow Cities including Glasgow, Aarhus, Bamberg, Schaerbeek, and Poznań will adapt and build on these efforts in their own communities.