The concept of commons can play a crucial role in driving inclusive behavioural change, aligning with the Green Deal’s sustainability and social equity goals. Commons are shared resources managed collectively by a community, governed through self-organised and cooperative institutions to ensure sustainable use and equitable access (Ostrom, 1990). ACCTING's research highlights how community-managed commons, such as urban gardens, energy communities, and shared mobility systems, can foster sustainable behaviours while strengthening social ties and promoting environmental stewardship. However, our research has revealed that marginalised groups often encounter barriers to accessing and benefiting from commons initiatives. These barriers include i) limited access to resources, ii) insufficient or poorly maintained infrastructure to support commons activities, and iii) entrenched social inequalities, which can limit participation or decision-making opportunities for marginalised population. The findings from ACCTING’s research indicate that targeted programmes addressing marginalised groups can overcome these barriers and create opportunities for sustainable participation. Programmes to engage vulnerable families in urban commons were particularly successful. To maximise the potential of commons, it is essential to form strong partnerships with governments, communities, and NGOs, and invest in pilot projects. At the same time, these collaborations can opt for sustainable funding initiatives and showcase successful examples for wider adoption. By incorporating the commons into public policies, municipalities can enhance environmental, social, and economic resilience, and foster more sustainable and inclusive communities.