CABEE is a transnational Alpine Space project that aims at creating and implementing 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 interconnections. 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.