A control apparatus for controlling first devices existing in an arbitrary place includes a first memory to store a plurality of device lists corresponding to a plurality of places respectively and each including device information items which indicate devices existing in corresponding one of the places, and a second memory to store a plurality of control information lists corresponding to the places respectively and each including control information items which indicate control operations for the devices existing in corresponding one of the places, and acquires first device information items indicating the first devices, detects an existence place of the first devices by comparing the first device information items with the device lists, and controls the first devices, based on one of the control information lists which corresponds to the existence place of the first devices.