Does the villa foundation sink?

No, you can report it to the property. There are many reasons for land subsidence, but whether it is engineering reasons or geological reasons, it is not something that property companies can handle.

This matter should be reported to the local construction authority immediately, and the construction supervision unit should be asked to check the cause of ground subsidence. If it is a structural problem, the developer and the builder of the original building will coordinate to solve it. If it is geological, then the problem is big and must be solved by the government, especially the buildings become dangerous and uninhabitable because of geological subsidence.