1. Don’t worry, your debt will remain unchanged during the demolition and you can just repay the loan normally.
2. Just follow the normal steps for changing a house.
3. If the property rights change is involved, the demolition department will give you a certificate. Then you can just go to the property rights office with the certificate to change it.
4. When discussing demolition, you can even ask the demolition department to help you complete some procedures. They have experience.
Good luck! It’s not as complicated as you think. Many people take out loans for house demolition, and there is just an additional change procedure. When the demolition comes, someone will tell you how to deal with it.