We are an EU-funded project that aims to provide a BIM-based Digital Twin Platform to optimise the building lifecycle, reduce costs and improve enery efficency. The quality of construction works has a direct impact on the quality of life of Europeans: in the EU, the construction industry is responsible for approximately 40% of final energy consumption and generates 36% of greenhouse gases in Europe. To build a low-carbon, climate-resilient future, decarbonising Europe's building stock is key. Therefore, a sustainable construction sector plays a crucial role for reaching the EU's long term 80-95% greenhouse gas emission reduction objective. To address this need for a more sustainable construction process, SPHERE’s platform will help boost a building’s energy performance throughout it's lifecycle – from design to end of life - by allowing better design, construction and performance while reducing time, costs and the environmental impact of the construction process. We will achieve this through the generation of a synchronized, building-centred Digital Twin platform based on Building Information Modelling (BIM) and Integrated Design and Delivery Solutions (IDDS).