This paper describes the partnership process and the final results of an untraditional joint innovation project between municipalities, public utility companies, and regional authorities in the Capital Region of Denmark. The project, which was concluded at the end of 2014 were organised as a cross municipal partnership, aiming at finding innovative climate adaptation solutions in response to increasing and more intense rain events in Denmark. Based on a comprehensive partnership approach the project has addressed legal issues, internal as well as external communication, decision support systems, and training and competence development. The final results, which concern partnership processes, cooperation mechanisms as well as pure technical results are presented in this paper. Some of the main findings are that this kind of partnership processes are difficult to run and establish and should be carefully designed. Especially the anchoring is important but difficult. Further that it is advisable to separate project wise the needs for here-and-now operational results from the long term innovation needs. Based on the tangible results and especially the strong network and partnership established the project will continue in a version two in 2015 with emphasis on supporting the implementation of the municipal climate change adaptation plans.

This new project is organised as two separate project activities, the outline of which is presented in this paper.