The green space in residential architecture can normally divided into 2 type which are one large court and separeted small court.In YT HOUSE, The architect tried to combined the bemefits of 2 types of these green areas together by shifting each level of the one large court type and add walls between the rooms what are in the same lavel. This can create the conceptual boundary of each room's green area and provide privacy but still keep the quality of volume of the main court.