设计概算是设计文件的重要组成部分,是在投资估算的控制下由设计单位根据初步设计(或扩大初步设计)图纸、概算定额(或概算指标)、各项费用定额或取费标准(指标)、建设地区自然、技术经济条件和设备、材料价格等资料,用科学的方法计算和确定建设项目从筹建至竣工交付使用所需全部费 The design estimate is an important part of the design document and is calculated by the design unit based on the preliminary design (or expanded preliminary design) drawing, the estimated quota (or estimated index), the fixed expense or the fee (indicator) , The construction area of ​​natural, technical and economic conditions and equipment, materials, prices and other information, using scientific methods to calculate and determine the construction project from the preparatory to the completion of the delivery of all the necessary fees