What is cadastral surveying and mapping? What is real estate mapping? Put it simply and clearly.

Cadastral survey is an important foundation of land management. Based on cadastral survey, it accurately measures the position and size, boundary, ownership boundary point coordinates, parcel area and cadastral map of all kinds of land from control to fragmentation by means of surveying technology, so as to meet the needs of land management departments and other national economic construction departments.

Real estate surveying and mapping is a distinctive branch of professional surveying and mapping. Its specific measurement scope is housing and housing-related land, that is to say, real estate surveying and mapping is a professional surveying and mapping to determine the natural conditions, ownership, location, quantity, quality and use of housing, land and its real estate by using surveying and mapping instruments, surveying and mapping techniques and means.