The house where the property is sold to the owner can be rebuilt privately. Why?

First of all, it is illegal to change the building without permission.

Some parts of the building can't be moved, such as the main beam and the load-bearing wall, which are illegal. Need to apply for minor changes to the property. After the approval of the relevant property department, the construction can be started and the house can be maintained after the deposit is paid to the property according to the regulations. If the relevant property department is qualified, the deposit will be refunded.