Building Act Article 81
For the buildings that are falling or decayed and hazardous to the public safety, the municipal and county (city) (bureau) competent authorities of construction shall notify the owners or the occupiers to stop using, and order the owners to demolish them within a specified time limit. Where an owner doesn’t demolish the building within the time limit, the competent authority may perform coercive demolishing.Where notice can’t be sent to the owner due to the incorrect address of the owner of a building as mentioned above, an announcement may be given to directly perform coercive demolishing.
中文原文 建築法第81條
直轄市、縣（市）（局）主管建築機關對傾頹或朽壞而有危害公共安全之建築物，應通知所有人或占有人停止使用，並限期命所有人拆除；逾期未拆者，得強制拆除之。
前項建築物所有人住址不明無法通知者，得逕予公告強制拆除。
前項建築物所有人住址不明無法通知者，得逕予公告強制拆除。