Building Act Article 59

In case of alteration of the urban plan or regional plan, where a building for which the license is already granted but construction has not been started or completed encumbers the altered urban plan or regional plan, the municipal or county (city) (bureau) competent authority of construction may stop the construction, and alter the design according to other related provisions.Where the proprietor must demolish the building due to the provision of the above paragraph, the municipal or county (city) (bureau) competent authority of construction shall offer compensation at the market price for a part of or the whole building.
中文原文 建築法第59條
直轄市、縣(市)(局)主管建築機關因都市計畫或區域計畫之變更,對已領有執照尚未開工或正在施工中之建築物,如有妨礙變更後之都市計畫或區域計畫者,得令其停工,另依規定,辦理變更設計。
起造人因前項規定必須拆除其建築物時,直轄市、縣(市)(局)政府應對該建築物拆除之一部或全部,按照市價補償之。

English translation for reference only; the Chinese text prevails. Not legal advice.