Housing Act Article 51

A housing construction company shall provide the required information specified in Paragraph 2 of Article 47 to the municipal, county (city) competent authority upon acquiring a building license and declaring that it will begin construction within 30 days.
中文原文 住宅法第51條
從事住宅興建之公司或商號,應於取得建造執照,申報開工日起三十日內,將第四十七條第二項所定應配合提供之相關統計資訊,提供予住宅所在地之直轄市、縣(市)主管機關。

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