Building Act Article 16

The buildings and miscellaneous works below a certain amount of construction cost or a certain scale standard may not require design by architects, and may not be constructed under supervision of the proprietor or contracted to a construction enterprise.The above-mentioned construction cost or scale standard will be enacted by the municipal and county (city) governments in the regulations on construction management.
中文原文 建築法第16條
建築物及雜項工作物造價在一定金額以下或規模在一定標準以下者,得免由建築師設計,或監造或營造業承造。
前項造價金額或規模標準,由直轄市、縣(市)政府於建築管理規則中定之。

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