International Overview of Current Practices by Retrofit HUB Training Activities by Retrofit HUB Energy Efficient Renovations in Practice Training Series Energy Renovation of Multifamily Buildings – Obstacles, Solutions and Opportunities Mapping Building Material Stocks in Cities: Regional Material Cadastres Selection of Circular and Low-Carbon Building Materials Safe Use of Circular Construction Products The Nexus Between Wind Energy, Biodiversity Protection and Social Acceptance Beyond Profit: How to Reshape the European Green Deal for People’s Well-Being Assessing Perceptions of UPGREAT’s Training Procedures