Large scale European regions need an integrated civil society, that doesn´t only see the European Union as an abstract idea but as a livingspace, where they can really act in a common and transnational cooperative way. For the future it will be therefore necessary to foster transnational forms of participation, which makes it possible for young people from different neighbours Member States to create a common transregional dialog, social commitment and political participation. Although there are several initiatives a management of knowledge and empiric founded quality standards, that identifies and links in a constructive way existing transborder participation experiences and “Best-Practice-Models” are still missing. That is why the training and encounter centre Schloß Trebnitz e.V. has established within the strategical partnership a “European Centre for transnational Youth-participation”. This project aimed within a two years periode at fostering and exploring transnational youth participation in the Polish-German border region. In this period of time the structural and theoretical fundaments for a sustainable implantation of this “European Centre for transnatioal youth participation” have been layed. We saw participation not only in the concrete field of politics but in a wider space which involved also all themes effecting the lives of young people. On the one hand it was the task to strengthen the development and the expansion of civil society committment and transnational participation in the borderregion by offering an educational and advisory service for multipliers, pedagogical staff, political and administrative decisionmakers and committed young people. On the other hand the centre served as coordination and research institution to foster the exchange of skills and knowledge and to enhance the development of qualitiy criterias for binational participation initiatives of young people by the help of praxis and evaluation research and by building an archive for participation and cooperation projects. The annual conferences for transnational youth participation served to present and discuss the results of the project with an interested specialist community in form of the book publications and the archive for youth participation.Naturally we have produce a website which presents all the relevant results and news concerning the project. Furthermore was a blended mobility activities with young peoples from two Polish and German schools. This activity was designed be a model project for the concrete testing of the project results and of establishing formal structures for local and transnational youth participation. In order to guarantee a functional project management we have established a project office in Trebnitz Castle where all activities were coordinated and substantially organized. he partners in the project from different schools, universities, administration and foundations have plan their own activities and have coordinate their common activities. There have been the following responsabilities: Universities - scientific supervision (quality standards), Schools - blended mobility activities - certification strategie for German-Polish Schoolactivities ; foundations and educational centers: exchange of knowledge and practical application of project results; administrations - implementation of the results in the region in other areas, structural implementation of youth participation structures. The qualitiy and the relevance of projects have signifivcantly raised through scientific monitoring, the development of qualitiy criterias, through innovative methods and the exchange of best practice. We already can recognize the following results: - A qualitative and quantitative augmentation of transnational youth participation projects in the region - A diversification of project partners by including new target groups (schools, administration, universities)- Intensification of experience sharing and crosslinking of the project partners and other stakeholders in the region (Euregio Viadrina)- the development of the region Märkisch Oderland and the Poviat Gorzow to an exemplary model area for transnational youth participation, where all relevant stakeholders, decision makers, civil society and institutions are integrated.The Project results have been presented on serveral seminars and Workshops all over Germany and Poland and they have led to divers further activities and projects, especially within the new structure of Schloss Trebnitz as official partnership-coordinator of the Land Brandenburg with the Woiwodship Greater Poland. since June 2016.