Dreams about moving often symbolize transition and change in your life. The newly constructed house could represent new beginnings or a fresh phase you are entering. However, the sagging and damage might indicate feelings of instability or insecurity regarding these changes.

The storm could symbolize unexpected challenges or emotional turmoil that you are currently facing or fear may arise in the future. Your dad's actions in the dream suggest a protective instinct or a desire to maintain family connections amidst these changes. The disappearance of belongings into the river may represent loss or a fear of losing important aspects of your life as you navigate through this transition.

Overall, this dream may be prompting you to reflect on how you are coping with changes in your life and to consider what support systems are in place to help you through difficult times. It might be a good time to assess what is truly important to you and how you can safeguard those elements during periods of instability.