The information needed to make a design drawing: area, function, surrounding environment, traffic conditions, site location, geological conditions, many things that rural self-built houses can not provide, such as geological conditions. Unless you do a detailed geological survey of the location where you built it, few exploration units will do a local survey for you, and the cost is too high. Generally, it is handled on site (generally, there are not many buildings, such as 2 ~ 3 floors). At the same time, as a design department, it should actively look for relevant design data (annual rainfall of earthquake-resistant water level and sunshine time of snow load) and obtain first-hand data (surrounding environment and traffic conditions) through on-site reconnaissance. As the owner, you should provide the use function and area of the building, as well as the standard grade and special requirements of the building.
Of course, if you ask the design unit to design, the cost is not low. You can find a private person to do it, without approval or construction. Mainly depends on your requirements for this building.