These practical guidelines offer general and transferrable guidance on how to initiate, steer and organize collaborative co-design processes for local NbS, together with multi-dimensionalstakeholders in any given city. They target anyone aiming to lead, organise or facilitate participatory multi-stakeholder engagement processes for NbS, especially municipal representatives. Taking the local and varied co-design processes in the Living Labs(following LL) of the three European Front Runner Cities (followingFRC) Zagreb, Dortmund and Turin during the H2020 project proGIreg as starting points, these guidelines capture, and package relevant experiences and lessons learnt.