How to determine the demolition area of self-managed public houses by units?

The identification of the area of house expropriation is based on the registration of house property rights combined with field measurement, and the unregistered area is determined by the three departments of land planning and housing construction. If it is not measured on the spot, it is sloppy to rely only on the data provided by the property management, and the legal basis is insufficient. At that time, in the records of property rights registration and housing distribution procedures, the legal effect was strong. But if you don't take an average approach, do other tenants agree that you are older than others when you are assigned a house? This is to prove each other.