To automatically avoid danger against a house by controlling the condition of the facility of a building intelligently and actively for danger information.

A receiving part 21 receives a broadcasting signal and supplies it to a received information judging part 22. The received information judging part 22 acquires a voice signal from the broadcasting signal supplied from the receiving part 21, and a voice recognition part 23 recognizes the voice of the voice signal. A judging part 24 detects danger information such as information regarding a person such as a thief and information regarding the area where the person appeared from the voice signal recognized by the voice recognition part 23. An actuator controlling part 28 controls the condition of the facility of the building by deforming the shape of a shape variable member set around the gap of the building based on the danger information detected by the judging part 24. That is to say, the actuator controlling part 28, for example, can set a condition where a door cannot be opened. This can be applied, for example, to a house having doors.

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