Building Information Modelling (BIM) applications are widely used in construction industry. Since there is some resistance to their adoption, we have to understand better the process of their acceptance and adoption. We introduce a three-legged approach to social acceptance assessment consisting of three main phases: The first leg/phase introduces a case-based approach for Adoption Impact Map construction, in which the aim is to model impacts of BIM adoption on end-user value. In the second leg/phase, BIM adoption among stakeholders is evaluated through the SPHERE BIM Digital Twin adoption survey, which will be distributed among professional stakeholders at the ending phase of the project. The survey is divided into two main parts: measurement of BIM acceptance readiness and measurement of individual and organizational intention. In the third leg/phase, post-occupancy evaluation is implemented through the SPHERE post-occupancy evaluation questionnaire. It gathers feedback on what occupants like in the building in which they live. The results of the assessment will be used to further support the development of SPHERE BIM Digital Twin Platform tool.