The EU’s buildings sector needs to develop and deploy more innovative solutions in order to enhance the building stock’s energy efficiency and help meet energy and climate policy targets. The European Union is therefore supporting projects that address design and construction processes as well as new technologies, with funding from the Horizon 2020 programme. The results developed by these projects address key challenges at each stage of the value chain for new nearly zero-energy buildings, deep renovation of existing buildings, and energy-smart buildings.