Standards for Establishing Children and Youth Welfare Institutes Article 9

Indoor floor area and outdoor activity areas in a nursery service center, excluding non-children main activity areas, such as sanitary room, kitchen, meal preparation area, administrative management area, storage room, firefighting space, stairs and balcony, legal parking zone and arcade shall be more than sixty square meters in total.Indoor floor areas in the preceding main activity space offered for children shall not be smaller than 2 square meters per person, and outdoor activity areas shall not be smaller than 1.5 square meters per person. If there is no or insufficient outdoor activity area, it shall be replaced with an indoor floor area of 1.5 square meters per person.
中文原文 兒童及少年福利機構設置標準第9條
托嬰中心室內樓地板面積及室外活動面積,扣除盥洗室、廚房、備餐區、行政管理區、儲藏室、防火空間、樓梯、陽台、法定停車空間及騎樓等非兒童主要活動空間後,合計應達六十平方公尺以上。
前項供兒童主要活動空間,室內樓地板面積,每人不得少於二平方公尺,室外活動面積,每人不得少於一點五平方公尺。
但無室外活動面積或不足時,得另以其他室內樓地板面積每人至少一點五平方公尺代之。

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