Need Of Survey The commonest mistake made by Land buyers is not having a survey done prior to purchasing a property which may result in disputes regarding area or location, improper planning etc. 1- It is vary essential to know the exact area and dimensions of the land Prior to purchasing land to insure what you are buying. 2- Level and contours are needed to design services such as Road, Sewage Disposal System, Water Supply System etc. 3- To verify amount of construction on land. 4- To obtain existing features and their position such as roads, electrical lines, Electric poles, Towers, Water or Sanitary features etc. 5- To divide land into parts before selling it.