This poster introduces the idea of a multi-user, multi-device XR-system to be set up at a construction site, for both co-located and remote use. This concept will be reified and implemented during the EU-funded project "BIMprove ��� Improving Building Information Modelling by Realtime Tracing of Construction Processes", starting September 2020. Building Information Modeling (BIM) facilitates a cooperative method of working, and transparent communication between all stakeholders of a building (or built asset in general), by the use of digital models that hold all relevant data and information about the building. This includes 3DCAD- data, but also non-geometrical data. So a building information model is a shared knowledge resource for information about a facility, forming a reliable basis for decisions during its life-cycle; defined as existing from earliest conception, through construction and operation, to demolition.