Abstract: The application relates to a method and system for determining the occupancy of one or more physical spaces. The system comprises one or more charging devices configured to be arranged at the one or more physical spaces, each of the charging devices comprising a charging unit configured for wireless power transfer to a mobile telecommunication device when the mobile telecommunication device is placed in close proximity to the charging unit, a localisation unit configured to broadcast an information signal comprising identifying information of the localisation unit to the mobile telecommunication device; and a controller configured to determine the location of an occupied physical space upon detection of the charging of the mobile telecommunication device, wherein the location is determined based on the broadcast signal.