Based on building data gained from Building Information Modelling (BIM) and related processes, this talk presents building-related AR application prototypes that have been recently tried and tested in and around buildings. Following up on our last year’s presentation about visualising virtual buildings in their real environment from the outside with Auto AR, this talk is now going inside. Using indoor AR with smart glasses and tablets, and utilising actual BIM and furniture 3D models, we developed and studied building services and interior design applications in our own building. This talk reports on key findings from this study, e.g. how the applications were perceived by users as a fit for the particular devices. Finally, we also report on a new project about automated space measurement for buildings where no BIM data is available, and how to combine that with material recognition and AR views.