What should I do if I know that the homestead is a ditch after buying a house?

I bought a house and knew that the homestead was a ditch and needed to be paved with cement boards. The specific operation steps are as follows:

1. Take measures as soon as possible to lay cement slabs in the ditch of the homestead.

2. Waterproof measures shall be taken to prevent water from washing away the homestead.

3. Homestead is the land occupied by family households as living bases.