Spatial Planning Act Article 37

If existing settlements or buildings and facilities in environmental restoration areas are assessed by the central relevant competent authority or the municipality or county (city) government with jurisdiction over the area as having safety hazards, restriction of occupancy or forced relocation may not be imposed unless the immediate danger is expected.If areas are assessed as having safety hazards, referred to in the preceding paragraph, then the central relevant competent authority, municipality or county (city) shall establish appropriate placement plans and complementary measures, and obtain the consent of the residents to build homes that favor ecological sustainability on safe and suitable land to accommodate those residents and assist in their settling, finding employment, schools and retirement homes, and preserving their traditional culture. If necessary, the Executive Yuan shall coordinate and consolidate such undertakings.
中文原文 國土計畫法第37條
國土復育促進地區內已有之聚落或建築設施,經中央目的事業主管機關或直轄市、縣(市)政府評估安全堪虞者,除有立即明顯之危害,不得限制居住或強制遷居。
前項經評估有安全堪虞之地區,中央目的事業主管機關或直轄市、縣(市)政府應研擬完善安置及配套計畫,並徵得居民同意後,於安全、適宜之土地,整體規劃合乎永續生態原則之聚落,予以安置,並協助居住、就業、就學、就養及保存其傳統文化;必要時,由行政院協調整合辦理。

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