The goal of the MUBI project is to propose a mobile interface to interact with a building database, allowing for the browsing of real-time environmental and energy data gathered by the building sensors relative to the space occupied by the user. Taking advantage of the mobile platform, it will also augment sensor data by gathering user comfort perception data, in order to analyze correlations between both datastreams. In this project, focus is placed on the development of a mobile tool with large diffusion potential in order to allow for its adaptation to different building contexts.