根据新的国家级标准——《房产测量规范》,10种情况下建筑面积不计算。1.层高小于2.20米以下的夹层、插层、技术层和地下层、半地下室;2.突出房屋墙面的构件、配件、装饰柱、装饰性的玻璃幕墙、垛、勒脚、台阶、无柱雨蓬;3.房屋之间无上盖的架空通廊; According to the new national standard - “Property Measurement Standards”, 10 cases of construction area is not calculated. 1. Interlayer, intercalation, technical layer and underground basement, semi-basement with a story height less than 2.20 meters; 2. Components, accessories, decorative columns, decorative glass curtain wall, No column Yupeng; 3 between the houses without overhead aerial corridor;