Kathy,
Taking down the house you and your ex lived in. That most likely would be a reference to dismantling the relationship between you and your ex husband. In dreams the basement refers to the unconscious. Consciously you may have succeeded in overcoming the end of the relationship but unconsciously there remains elements to be dealt with.

The sunrise with the orange glow. The future has great promise {if nothing else a reference to the positive attitude of the human psyche} but everything is not as bright as it could be. Something similar to the hangover after drinking too much there are aspects that need more time to get over.

Returning to the house. In dreams this house is you. You are reconstructing your life after the end to the relationship. But it is harder to reconstruct the unconscious damage. The right side of the house may be a reference to the emotional aspects that have only been partially reconstructed. Dreams are primarily about our emotions, your dreams about your personal psychology.

Just now noting the 'dead husband'. Is this a true statement or is he still living? If he is alive then the reference would be with 'his being dead in relationship to the ending of the marriage'.
Either way you are still dealing with the unconscious if not conscious aspects due to the ending of the relationship. You are running away from certain aspects related to the 'house'. Again the house is you, you are running away from emotions that you do not want to be seen by him. This could be a reference to the lingering emotions and positive attachment to the relationship, something you need to move past if you are going to 'rebuild' your whole life.

Jerry