CABEE is a transnational Alpine project that aims to create and implement an Alpine-wide guideline for definition, procurement, production, assessment and promotion as well as learning about new and refurbished Nearly-Zero-Emission-Buildings (NZEB) and their neighbourhoods. CABEE capitalizes wisdom from finished and on-going EU-projects but also projects from the Alpine Space program. It focuses on a mass oriented approach with low entry barriers and an on-going Open-Source support. Pilot activities are settled on public tendering, user behaviour and a toward 100% eco-assessment approach. The integration of micro smart energy grids is explored. Furthermore, markets for NZEBs are prepared, especially in cooperation with public authorities and SMEs. On the regional level, “Regional Operation Committees” will be established which are supported by a transnational sustainable network of experts. A public transnational conference concentrates on and spreads out existing knowledge.