A mobile device having location services stores information pertaining to a geo-fence assigned to a building and stores a geo-fence log including one or more mobile device parameters and one or more geo-fence crossing events. The mobile device may determine the location of the mobile device via the location services and may determine when a geo-fence crossing event has occurred. Each of the geo-fence crossing events may be recorded in the geo-fence log, which may be uploaded to a remote server from time to time.