glass curtain (smart window) 正式被URA禁止
Please be reminded of URA guidelines on the Balcony Incentive Scheme. Such balconies are meant to be semi-outdoor spaces and cannot be enclosed. Only balcony screens (e.g. louvres) which are fully retractable and will allow for natural ventilation at all times can be allowed. Glass curtains are not permissible and are regarded as unauthorized works.
党宁策
Glass curtain 指的是glass curtain wall， not invisible grill
如果lz想说明的是最近讨论的比较热烈的公寓装invisible grill的，两者不是一回事。附赠glass curtain的美图。
要是我理解错了，轻拍。