National Property Act Article 33

The public use property shall convert to the non-public use property when its purpose is abolished. The land expropriated by Laws shall be governed by the provisions of the Land Act and the Land Expropriation Act.
中文原文 國有財產法第33條
公用財產用途廢止時,應變更為非公用財產。
但依法徵收之土地,適用土地法及土地徵收條例之規定。

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