Surveying ? When building a building, Should be. A. Prevention of disputes depending on the location of the land with the neighbor .B. Check where my land is ? C. ? The standard for determining the location to construct the building. . *The area of the land may be different. Although the area of the land is accurate in downtown Seoul and the center of local governments, Sometimes there is an intellectual disagreement The area may be small. This part is not eligible for rewards? <Construction order series> Power is nothing without Control!